GRB 090423 at a redshift of z ≈ 8.1 (2009)
Salvaterra, Ruben, Della Valle, M., Campana, S., Chincarini, G., Covino, S., D'Avanzo, P., ...
3 pages, 2 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/0906.1578
GRB081028 and its late-time afterglow re-brightening (2009)
Margutti, R., Genet, F., Granot, J., Duran, R. Barniol, Guidorzi, C., Chincarini, G., ...
Swift captured for the first time a smoothly rising X-ray re-brightening of clear non-flaring origin after the steep decay in a long gamma-ray burst (GRB): GRB081028. A rising phase is likely present...
New results on focusing of gamma-rays with Laue lenses (2009)
Ferrari, F., Frontera, F., Loffredo, G., Virgilli, E., Guidorzi, C., Carassiti, V., ...
We report on new results on the development activity of broad band Laue lenses for hard X-/gamma-ray astronomy (70/100-600 keV). After the development of a first prototype, whose performance was...
Spectral evolution of GRBs observed with BeppoSAX WFCs and GRBM (2009)
Frontera, F., Amati, L., Guidorzi, C., Landi, R., La Parola, V.
We present some preliminary results obtained from a systematic analysis of almost all GRBs simultaneously observed with the Gamma Ray Burst Monitor and the Wide Field Cameras aboard the BeppoSAX...
GRB090111: extra soft steep decay emission and peculiar re-brightening (2009)
Margutti, R., Sakamoto, T., Chincarini, G., Guidorzi, C., Mao, J., Pasotti, F., ...
We present a detailed study of GRB090111, focusing on its extra soft power-law photon index Gamma>5 at the very steep decay phase emission (power-law index alpha=5.1, steeper than 96% of GRBs...
Page, K. L., Willingale, R., Bissaldi, E., Postigo, A. De Ugarte, Holland, S. T., McBreen, S., ...
GRB 080810 was one of the first bursts to trigger both Swift and the Fermi Gamma-ray Space Telescope. It was subsequently monitored over the X-ray and UV/optical bands by Swift, in the optical by...
The Interplanetary Network Supplement to the HETE-2 Gamma-Ray Burst Catalog (2009)
Hurley, K., Barraud, C., Pelangeon, A., Boer, M., Vanderspek, R., ...
Between 2000 November and 2006 May, one or more spacecraft of the interplanetary network (IPN) detected 226 cosmic gamma-ray bursts that were also detected by the FREGATE experiment aboard the...
Monitoring Supergiant Fast X-ray Transients with Swift. Results from the first year (2009)
Romano, P., Sidoli, L., Cusumano, G., La Parola, V., Vercellone, S., Pagani, C., ...
Swift has allowed the possibility to give Supergiant Fast X-ray Transients (SFXTs), the new class of High Mass X-ray Binaries discovered by INTEGRAL, non serendipitous attention throughout all phases...
Extremely energetic Fermi Gamma-Ray Bursts obey spectral energy correlations (2009)
Amati, L., Frontera, F., Guidorzi, C.
The extremely energetic Fermi GRBs 080916C, with its Eiso of ~ 10^{55} erg in 1 keV - 10 GeV and intense GeV emission, and 090323 give us a unique opportunity to test the reliability and extension of...
D'Elia, V., Fiore, F., Perna, R., Krongold, Y., Vergani, S. D., Campana, S., ...
We study the Gamma Ray Burst (GRB) environment and intervening absorbers by analyzing the optical absorption features produced by gas surrounding the GRB or along its line of sight. We analyzed high...
GRB 090423 reveals an exploding star at the epoch of re-ionization (2009)
Salvaterra, R., Della Valle, M., Campana, S., Chincarini, G., Covino, S., D'Avanzo, P., ...
The observation of the very early stages of the Universe represents one of the main challenges of modern cosmology. 200-300 million years after the Big Bang stars began to form, thus providing the...
Rise and fall of the X-ray flash 080330: an off-axis jet? (2009)
Guidorzi, C., Clemens, C., Kobayashi, S., Granot, J., Melandri, A., D'Avanzo, P., ...
X-ray flashes (XRFs) are a class of gamma-ray bursts (GRBs) with the peak energy of the time-integrated spectrum, Ep, below 30 keV, whereas classical GRBs have Ep of a few hundreds keV. Apart from Ep...
Melandri, A., Guidorzi, C., Kobayashi, S., Bersier, D., Mundell, C. G., Milne, P., ...
We present a comprehensive multiwavelength temporal and spectral analysis of the FRED GRB 070419A. The early-time emission in the $\gamma$-ray and X-ray bands can be explained by a central engine...
Rise and fall of the X-ray flash 080330: an off-axis jet? (2009)
Guidorzi, C., Clemens, C., Kobayashi, S., Granot, J., Melandri, A., D'Avanzo, P., ...
Original article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory (ESO). DOI: 10.1051/0004-6361/200911719
Rise and fall of the X-ray flash 080330: an off-axis jet? (2009)
Guidorzi, C., Clemens, C., Kobayashi, S., Granot, J., Melandri, A., D'Avanzo, P., ...
Constraining the energy budget of GRB 080721 (2008)
Starling, R. L. C., Rol, E., Van Der Horst, A. J., Pal'shin, V., Ledoux, C., ...
We follow the bright, highly energetic afterglow of Swift-discovered GRB 080721 out to 36 days or 3e6 s since the trigger in the optical and X-ray bands. We do not detect a break in the late-time...
A new measurement of the cosmic X-ray background (2008)
Moretti, A., Pagani, C., Cusumano, G., Campana, S., Perri, M., Abbey, A., ...
We present a new measurement of the cosmic X-ray background (CXRB) in the 1.5-7 keV energy band, performed by exploiting the Swift X-ray telescope (XRT) data archive. We also present a CXRB spectral...
Sidoli, L., Romano, P., Cusumano, G., Mangano, V., Vercellone, S., Paizis, A., ...
Supergiant Fast X-ray Transients (SFXTs) are a sub-class of High Mass X-ray Binaries (HMXBs) associated with OB supergiant companions and displaying transient X-ray activity. This behaviour is quite...
The Gamma--Ray Burst catalog obtained with the Gamma Ray Burst Monitor aboard BeppoSAX (2008)
Frontera, F., Guidorzi, C., Montanari, E., Rossi, F., Costa, E., Feroci, M., ...
We report on the catalog of Gamma--Ray Bursts (GRBs) detected with the Gamma Ray Burst Monitor aboard the BeppoSAX satellite. It includes 1082 GRBs with 40--700 keV fluences in the range from...
Flares in Gamma Ray Bursts (II) (2008)
Chincarini, G., Margutti, R., Mao, J., Pasotti, F., Guidorzi, C., Covino, S., ...
We illustrate some of the preliminary results obtained with a new sample of flares and a new analysis. In these proceedings we deal mainly with the analysis related to the flare energy and describe...
Temporal variability of GRB early X-ray afterglows and GRB080319B prompt emission (2008)
Margutti, R., Guidorzi, C., Chincarini, G., Pasotti, F., Covino, S., Mao, J.
We performed the first systematic search for the minimum variability time scale between 0.3 and 10 keV studying the 28 brightest early (
The Luminosity Function of Long Gamma-Ray Bursts and their rate at z>6 (2008)
Salvaterra, R., Campana, S., Chincarini, G., Choudhury, T. R., Covino, S., Ferrara, A., ...
We compute the luminosity function (LF) and the formation rate of long gamma ray bursts (GRBs) in three different scenarios: i) GRBs follow the cosmic star formation and their LF is constant in time;...
The short GRB070707 afterglow and its very faint host galaxy (2008)
Piranomonte, S., D'Avanzo, P., Covino, S., Antonelli, L. A., Beardmore, A. P., Campana, S., ...
We present the results from an ESO/VLT campaign aimed at studying the afterglow properties of the short/hard gamma ray burst GRB 070707. Observations were carried out at ten different epochs from...
Romano, P., Guidorzi, C., Sidoli, L., Montanari, E., Capitanio, F., Amati, L., ...
During our Swift/XRT program to obtain X-ray positions at arcsecond level for a sample of Galactic X-ray binaries, we discovered that SAX J0840.7+2248 is not a binary, but rather BeppoSAX/WFC+GRBM...
Outliers from the mainstream: how a massive star can produce a gamma-ray burst (2008)
Campana, S., Panagia, N., Lazzati, D., Beardmore, A. P., Cusumano, G., Godet, O., ...
It is now recognized that long-duration Gamma-Ray Bursts (GRBs) are linked to the collapse of massive stars, based on the association between (low-redshift) GRBs and (type Ic) core-collapse...
Evidence for Luminosity Evolution of Long Gamma-ray Bursts in Swift Data (2008)
Salvaterra, R., Guidorzi, C., Campana, S., Chincarini, G., Tagliaferri, G.
We compute the luminosity function (LF) and the formation rate of long gamma ray bursts (GRBs) by fitting the observed differential peak flux distribution obtained by the BATSE experiment in two...
A Swift gaze into the 2006 March 29th burst forest of SGR 1900+14 (2008)
Israel, G. L., Romano, P., Mangano, V., Dall'Osso, S., Chincarini, G., Stella, L., ...
We report on the intense burst ``forest'' recorded on 2006 March 29 which lasted for ~30s. More than 40 bursts were detected both by BAT and by XRT, seven of which are rare intermediate flares (IFs):...
GRB 080319B: A Naked-Eye Stellar Blast from the Distant Universe (2008)
Racusin, J. L., Karpov, S. V., Sokolowski, M., Granot, J., Wu, X. F., Pal'shin, V., ...
Long duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse...
Measuring the cosmological parameters with the Ep,i-Eiso correlation of Gamma-Ray Bursts (2008)
Amati, L., Guidorzi, C., Frontera, F., Della Valle, M., Finelli, F., Landi, R., ...
We have used the Ep,i-Eiso correlation of GRBs to measure the cosmological parameter Omega_M. By adopting a maximum likelihood approach which allows us to correctly quantify the extrinsic (i.e....
The complex light-curve of the afterglow of GRB071010A (2008)
Covino, S., D'Avanzo, P., Klotz, A., Perley, D. A., Amati, L., Campana, S., ...
We present and discuss the results of an extensive observational campaign devoted to GRB071010A, a long-duration gamma-ray burst detected by the Swift satellite. This event was followed for almost a...
The prompt, high resolution spectroscopic view of the "naked-eye" GRB080319B (2008)
D'Elia, V., Fiore, F., Perna, R., Krongold, Y., Covino, S., Fugazza, D., ...
GRB080319B reached 5th optical magnitude during the burst prompt emission. Thanks to the VLT/UVES rapid response mode, we observed its afterglow just 8m:30s after the GRB onset when the magnitude was...
Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...
We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multi-color optical imaging from ten ground-based telescopes. GRB 061126 was a...
The Early-time Optical Properties of Gamma-Ray Burst Afterglows (2008)
Melandri, A., Mundell, C. G., Kobayashi, S., Guidorzi, C., Gomboc, A., Steele, I. A., ...
We present a multiwavelength analysis of 63 Gamma-Ray Bursts observed with the world's three largest robotic optical telescopes, the Liverpool and Faulkes Telescopes (North and South). Optical...
Rossi, F., Guidorzi, C., Amati, L., Frontera, F., Romano, P., Campana, S., ...
Using a sample of 14 BeppoSAX and 74 Swift GRBs with measured redshift we tested the correlation between the intrinsic peak energy of the time-integrated spectrum, E_p,i, the isotropic-equivalent...
Anomalous X-ray emission in GRB 060904B: A Nickel line? (2008)
Margutti, R., Moretti, A., Pasotti, F., Campana, S., Chincarini, G., Covino, S., ...
The complex light curve of the afterglow of GRB 071010A (2008)
Covino, S., D'Avanzo, P., Klotz, A., Perley, D. A., Amati, L., Campana, S., ...
The Early-Time Optical Properties of Gamma-Ray Burst Afterglows. (2008)
Melandri, A., Mundell, C.G., Kobayashi, S., Guidorzi, C., Gomboc, A., Steele, I.A., ...
Original article can be found at: http://www.iop.org/EJ/journal/apj Copyright American Astronomical Society DOI: 10.1086/591243 [Full text of this article is not available in the UHRA]
Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...
We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multicolor optical imaging from 10 ground-based telescopes. GRB 061126 was a long...
Broadband observations of the naked-eye gamma-ray burst GRB 080319B (2008)
Racusin, J.L., Karpov, S.V., Sokolowski, M., Granot, J., Wu, X.F., Pal'shin, V., ...
Long-duration gamma-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse...
Anomalous X-Ray emission in GRB060904B: a Nickel line? (2007)
Margutti, R., Moretti, A., Pasotti, F., Campana, S., Chincarini, G., Covino, S., ...
The detection of an extra component in GRB060904B X-ray spectra in addition to the standard single power-law behaviour has recently been reported in the literature. This component can be fit with...
When GRB afterglows get softer, hard components come into play (2007)
Moretti, A., Margutti, R., Pasotti, F., Beardmore, A. P., Campana, S., Chincarini, G., ...
We aim to investigate the ability of simple spectral models to describe the GRB early afterglow emission. We performed a time resolved spectral analysis of a bright GRB sample detected by the Swift...
Short Gamma Ray Bursts: a bimodal origin? (2007)
Salvaterra, R., Cerutti, A., Chincarini, G., Colpi, M., Guidorzi, C., Romano, P.
Short-hard Gamma Ray Bursts (SGRBs) are currently thought to arise from gravitational wave driven coalescences of double neutron star systems forming either in the field or dynamically in globular...
A study of the prompt and afterglow emission of the Short GRB 061201 (2007)
Stratta, G., D'Avanzo, P., Piranomonte, S., Cutini, S., Preger, B., Perri, M., ...
Our knowledge of the intrinsic properties of short duration Gamma-Ray Bursts has relied, so far, only upon a few cases for which the estimate of the distance and an extended, multiwavelength...
GRB 070311: a direct link between the prompt emission and the afterglow (2007)
Guidorzi, C., Vergani, S. D., Sazonov, S., Covino, S., Malesani, D., Molkov, S., ...
We present prompt gamma-ray, early NIR/optical, late optical and X-ray observations of the peculiar GRB 070311 discovered by INTEGRAL, in order to gain clues on the mechanisms responsible for the...
Multicolor observations of the afterglow of the short/hard GRB 050724 (2007)
Malesani, D., Covino, S., D'Avanzo, P., D'Elia, V., Fugazza, D., Piranomonte, S., ...
New information on short/hard gamma-ray bursts (GRBs) is being gathered thanks to the discovery of their optical and X-ray afterglows. However, some key aspects are still poorly understood, including...
Ruiz-Velasco, A. E., Swan, H., Troja, E., Malesani, D., Fynbo, J. P. U., Starling, R. L. C., ...
We report on follow-up observations of the GRB 060927 using the ROTSE-IIIa telescope and a suite of larger aperture ground-based telescopes. An optical afterglow was detected 20 s after the burst,...
Multicolor observations of the afterglow of the short/hard GRB 050724 (2007)
Malesani, D., Covino, S., D'Avanzo, P., D'Elia, V., Fugazza, D., Piranomonte, S., ...
New information on short/hard gamma-ray bursts (GRBs) is being gathered thanks to the discovery of their optical and X-ray afterglows. However, some key aspects are still poorly understood, including...
Rizzuto, D., Guidorzi, C., Romano, P., Covino, S., Campana, S., Capalbi, M., ...
We test the gamma-ray burst correlation between temporal variability and peak luminosity of the $\gamma$-ray profile on a homogeneous sample of 36 Swift/BAT GRBs with firm redshift determination....
Swift observations of GRB 060614: an anomalous burst with a well behaved afterglow (2007)
Mangano, V., Holland, S. T., Malesani, D., Troja, E., Chincarini, G., Zhang, B., ...
GRB 060614 is a remarkable GRB observed by Swift with puzzling properties, which challenge current progenitor models. The lack of any bright SN down to very strict limits and the vanishing spectral...
Page, K. L., Willingale, R., Osborne, J. P., Zhang, B., Godet, O., Marshall, F. E., ...
Swift triggered on a precursor to the main burst of GRB 061121 (z=1.314), allowing observations to be made from the optical to gamma-ray bands. Many other telescopes, including Konus-Wind,...
Are Swift gamma-ray bursts consistent with the Ghirlanda relation? (2007)
Campana, S., Guidorzi, C., Tagliaferri, G., Chincarini, G., Moretti, A., Rizzuto, D., ...
A few tight correlations linking several properties of gamma-ray bursts (GRBs), namely the spectral peak energy, the total radiated energy, and the afterglow break time, have been discovered with...
Chincarini, G., Moretti, A., Romano, P., Falcone, A. D., Morris, D., Racusin, J., ...
We present the first systematic investigation of the morphological and timing properties of flares in GRBs observed by Swift/XRT. We consider a large sample drawn from all GRBs detected by Swift,...
Troja, E., Cusumano, G., O'Brien, P., Zhang, B., Sbarufatti, B., Mangano, V., ...
We present a detailed analysis of Swift multi-wavelength observations of GRB 070110 and its remarkable afterglow. The early X-ray light curve, interpreted as the tail of the prompt emission, displays...
On the temporal variability classes found in long gamma-ray bursts with known redshift (2007)
Borgonovo, L., Frontera, F., Guidorzi, C., Montanari, E., Vetere, L., Soffitta, P.
Based on the analysis of a small sample of BATSE and Konus gamma-ray bursts (GRBs) with know redshift it has been reported that the width of the autocorrelation function (ACF) shows a remarkable...
Swift GRBs: the early afterglow spectral energy distribution (2007)
Tagliaferri, G., Malesani, D., Vergani, S. D., Campana, S., Chincarini, G., Covino, S., ...
We present the first results of a program to systematically study the optical-to-X-ray spectral energy distribution (SED) of Swift GRB afterglows with known redshift. The goal is to study the...
Attributes of flares in Gamma Ray Bursts: sample I (2007)
Chincarini, G., Moretti, A., Romano, P., Falcone, A. D., Campana, S., Covino, S., ...
We discuss some of the preliminary results and findings derived from the analysis of a first sample of flares detected by the XRT on board Swift. The analysis shows that the morphology of flares is...
The prompt to late-time multiwavelength analysis of GRB 060210 (2007)
Curran, P. A., Van Der Horst, A. J., Beardmore, A. P., Page, K. L., Rol, E., Melandri, A., ...
We present our analysis of the multiwavelength photometric & spectroscopic observations of GRB 060210 and discuss the results in the overall context of current GRB models. All available optical data...
Trigger 255685: Swift detection of a possible burst (2007)
Palmer, D.M., Barthelmy, S.D., Beardmore, A.P., Burrows, D.N., Cummings, J.R., Evans, P.A., ...
Not Available
GRB 070311: a direct link between the prompt emission and the afterglow (2007)
Guidorzi, C., Vergani, S. D., Sazonov, S., Covino, S., Malesani, D., Molkov, S., ...
A Review of Early-Time Optical Follow-ups with 2-m Robotic Telescopes (2006)
Gomboc, A., Guidorzi, C., Mundell, C. G., Melandri, A., Monfardini, A., Bersier, D., ...
We summarise recent deep, rapid GRB follow-up observations using the RoboNet-1.0 network which comprises three fully-robotic 2-m telescopes, the Liverpool Telescope and the Faulkes Telescopes North...
Guidorzi, C., Gomboc, A., Kobayashi, S., Mundell, C. G., Rol, E., Bode, M. F., ...
We report a multi-wavelength analysis of the prompt emission and early afterglow of GRB051111 and discuss its properties in the context of current fireball models. The detection of GRB051111 by the...
The early and late-time spectral and temporal evolution of GRB 050716 (2006)
Rol, E., Osborne, J. P., Page, K. L., McGowan, K. E., Beardmore, A. P., O'Brien, P. T ., ...
We report on a comprehensive set of observations of Gamma Ray Burst 050716, detected by the Swift satellite and subsequently followed-up rapidly in X-ray, optical and near infra-red wavebands. The...
The Remarkable Afterglow of GRB 061007: Implications for Optical Flashes and GRB Fireballs (2006)
Mundell, C. G., Melandri, A., Guidorzi, C., Kobayashi, S., Steele, I. A., Malesani, D., ...
We present a multiwavelength analysis of Swift GRB 061007. The 2-m robotic Faulkes Telescope South (FTS) began observing 137 s after the onset of the gamma-ray emission, when the optical counterpart...
Anatomy of A Dark Burst - The Afterglow of GRB 060108 (2006)
Oates, S. R., Mundell, C. G., Piranomonte, S., Page, K. L., De Pasquale, M., Monfardini, A., ...
We report the first detection of an optical afterglow of a GRB (060108) that would have been classified as 'dark' in the absence of deep, rapid ground-based optical imaging with the 2-m robotic...
Multi-wavelength afterglow observations of the high redshift GRB 050730 (2006)
Pandey, S. B., Castro-Tirado, A. J., McBreen, S., Perez-Ramirez, M. D., Bremer, M., Guerrero, M. A., ...
GRB 050730 is a long duration high-redshift burst (z=3.967) discovered by Swift. The afterglow shows variability and is well monitored over a wide wavelength range. We present comprehensive temporal...
On the consistency of the peculiar GRBs 060218 and 060614 with the Ep,i - Eiso correlation (2006)
Amati, L., Della Valle, M., Frontera, F., Malesani, D., Guidorzi, C., Montanari, E., ...
We analyze and discuss the position of GRB 060218 and GRB 060614 in the Ep,i - Eiso plane. GRB 060218 is important because of its similarity with GRB 980425, the proto-type event of the GRB-SN...
The slope of the GRB Variability/Peak Luminosity Correlation (2006)
Guidorzi, C., Frontera, F., Montanari, E., Rossi, F., Amati, L., Gomboc, A., ...
From a sample of 32 GRBs with known redshift (Guidorzi et al. 2005) and then a sample of 551 BATSE GRBs with derived pseudo-redshift (Guidorzi 2005), the time variability/peak luminosity correlation...
The gamma-ray burst monitor for Lobster-ISS (2006)
Amati, L., Frontera, F., Auricchio, N., Caroli, E., Basili, A., Bogliolo, A., ...
Lobster-ISS is an X-ray all-sky monitor experiment selected by ESA two years ago for a Phase A study (now almost completed) for a future flight (2009) aboard the Columbus Exposed Payload Facility of...
Monfardini, A., Kobayashi, S., Guidorzi, C., Carter, D., Mundell, C. G., Bersier, D. F., ...
The 2-m robotic Liverpool Telescope (LT) reacted promptly to the high-redshift (z=4.048) gamma-ray burst GRB 060206. The afterglow was identified automatically and multicolor r'i'z' imaging was...
The variable X-ray light curve of GRB 050713A: the case of refreshed shocks (2006)
Guetta, D., Fiore, F., D'Elia, V., Perna, R., Antonelli, L. A., Piranomonte, S., ...
We present a detailed study of the spectral and temporal properties of the X-ray and optical emission of GRB050713a up to 0.5 day after the main GRB event. The X-ray light curve exhibits large...
We test the correlation found by Reichart et al. between time variability and peak luminosity of gamma-ray bursts (GRBs). Recently, Guidorzi et al. found that this still holds for a sample of 32 GRBs...
Multi-wavelength afterglow observations of the high redshift GRB 050730 (2006)
Pandey, S. B., Castro-Tirado, A. J., McBreen, S., Pérez-Ramírez, M. D., Bremer, M., Guerrero, M. A., ...
IGR J08408-4503 (= v* LM vel): Swift detection of a transient (2006)
Ziaeepour, H., Burrows, D.N., Campana, S., Cummings, J.R., Godet, O., Guidorzi, C., ...
Not Available
GRB 061006: Swift detection of a burst (2006)
Schady, P., Burrows, D.N., Cummings, J.R., Gehrels, N., Guidorzi, C., Holland, S.T., ...
Not Available
GRB 061214(?): Swift detection of a possible burst (2006)
Pandey, S.B., Barthelmy, S.D., Beardmore, A.P., Burrows, D.N., Chester, M.M., Evans, P.A., ...
Not Available
GRB 061121: Swift detection of a bright burst with an optical counterpart (2006)
Page, K.L., Barthelmy, S.D., Beardmore, A.P., Brown, P.J., Burrows, D.N., Evans, P.A., ...
Not Available
GRB 061021: Swift detection of a burst (2006)
Moretti, A., Barthelmy, S.D., Gehrels, N., Guidorzi, C., Holland, S.T., Kennea, J.A., ...
Not Available
GRB 060927: Swift detection of a burst (2006)
Barbier, L.M., Barthelmy, S.D., Beardmore, A.P., Brown, P.J., Burrows, D.N., Campana, S., ...
Not Available
The Automatic Real-Time GRB Pipeline of the 2-m Liverpool Telescope (2005)
Guidorzi, C., Monfardini, A., Gomboc, A., Mottram, C. J., Mundell, C. G., Steele, I. A., ...
The 2-m Liverpool Telescope (LT), owned by Liverpool John Moores University, is located in La Palma (Canary Islands) and operates in fully robotic mode. In 2005, the LT began conducting an automatic...
Guidorzi, C., Monfardini, A., Gomboc, A., Mundell, C. G., Steele, I. A., Carter, D., ...
The 2-m robotic Liverpool Telescope reacted promptly to the gamma-ray burst GRB 050502a discovered by INTEGRAL and started observing 3 min after the onset of the GRB. The automatic identification of...
The GRB Variability/Peak Luminosity Correlation: new results (2005)
Guidorzi, C., Frontera, F., Montanari, E., Rossi, F., Amati, L., Gomboc, A., ...
We report test results of the correlation between time variability and peak luminosity of Gamma-Ray Bursts (GRBs), using a larger sample (32) of GRBs with known redshift than that available to...
SN/GRB connection: a statistical approach with BATSE and Asiago Catalogues (2005)
Valenti, S., Cappellaro, E., Della Valle, M., Frontera, F., Guidorzi, C., Montanari, E.
Recent observations suggest that some types of GRB are physically connected with SNe of type Ib/c. However, it has been pointed out by several authors that some GRBs could be associated also with...
The GRB of 1999 January 23: prompt emission and broad-band afterglow modeling (2005)
Corsi, A., Piro, L., Kuulkers, E., Amati, L., Antonelli, L. A., Costa, E., ...
We report on BeppoSAX simultaneous X- and gamma-ray observations of the bright gamma-ray burst (GRB) 990123. We present the broad-band spectrum of the prompt emission, including optical, X- and...
The puzzling case of GRB 990123: multiwavelength afterglow study (2005)
Maiorano, E., Masetti, N., Palazzi, E., Frontera, F., Grandi, P., Pian, E., ...
We report on the BeppoSAX data analysis of the afterglow of Gamma-Ray Burst (GRB) 990123, one of the brightest GRBs detected by BeppoSAX. Mainly due to its exceptional brightness, this is the only...
The puzzling case of GRB 990123: prompt emission and broad-band afterglow modeling (2005)
Corsi, A., Piro, L., Kuulkers, E., Amati, L., Antonelli, L. A., Costa, E., ...
We report on BeppoSAX simultaneous X- and gamma-ray observations of the bright GRB 990123. We present the broad-band spectrum of the prompt emission, including optical, X- and gamma-rays, confirming...
Gomboc, A., Mundell, C. G., Guidorzi, C., Monfardini, A., Mottram, C. J., Priddey, R., ...
We present the first optical observations of a Gamma Ray Burst (GRB) afterglow using the 2-m robotic Liverpool Telescope (LT), which is owned and operated by Liverpool John Moores University and...
The Liverpool Telescope Automatic Pipeline for Real-time GRB Afterglow Detection (2005)
Gomboc, A., Monfardini, A., Guidorzi, C., Mundell, C. G., Mottram, C. J., Fraser, S. N., ...
The 2-m robotic Liverpool Telescope (LT) is ideally suited to the rapid follow-up of unpredictable and transient events such as GRBs. Our GRB follow-up strategy is designed to identify optical/IR...
Piro, L., De Pasquale, M., Soffitta, P., Lazzati, D., Amati, L., Costa, E., ...
In this paper we present BeppoSax and XMM observations of two long Gamma-ray bursts, the X-ray rich event of December 11, 2001 (GRB011211) and the hard and very bright event of November 21, 2001...
Rapid GRB Follow-up with the 2-m Robotic Liverpool Telescope (2004)
Gomboc, A., Bode, M. F., Carter, D., Guidorzi, C., Monfardini, A., Mundell, C. G., ...
We present the capabilities of the 2-m robotic Liverpool Telescope (LT), owned and operated by Liverpool John Moores University and situated at ORM, La Palma. Robotic control and scheduling of the LT...
Hurley, K., Stern, B., Kommers, J., Cline, T., Mazets, E., Golenetskii, S., ...
We present Interplanetary Network (IPN) detection and localization information for 211 gamma-ray bursts (GRBs) observed as untriggered events by the Burst and Transient Source Experiment (BATSE), and...
Astone, P., Babusci, D., Bassan, M., Carelli, P., Coccia, E., Cosmelli, C., ...
The statistical association between the output of the Gravitational Wave (GW) detectors EXPLORER and NAUTILUS and a list of Gamma Ray Bursts (GRBs) detected by the satellite experiments BATSE and...
The prompt X-ray emission of GRB011211: possible evidence of a transient absorption feature (2004)
Frontera, F., Amati, L., Lazzati, D., Konigl, A., Vietri, M., ...
We report on observation results of the prompt X- and gamma-ray emission from GRB011211. This event was detected with the Gamma-Ray Burst Monitor and one of the Wide Field Cameras aboard the BeppoSAX...
Prompt and afterglow X-ray emission from the X-Ray Flash of 2002 April 27 (2004)
Amati, L., Frontera, F., Capalbi, M., Landi, R., Soffitta, P., ...
We report on the X-ray observations of the X-ray flash (XRF) which occurred on 2002 April 27, three days before BeppoSAX was switched off. The event was detected with the BeppoSAX Wide Field Cameras...
A decreasing column density during the prompt emission from GRB000528 observed with BeppoSAX (2004)
Frontera, F., Amati, L., Lazzati, D., Montanari, E., Orlandini, M., Perna, R., ...
We report observation results of the prompt X-- and $\gamma$--ray emission from GRB 000528. This event was detected with the Gamma-Ray Burst Monitor and one of the two Wide Field Cameras aboard the...
Guidorzi, C., Frontera, F., Montanari, E., Feroci, M., Amati, L., Costa, E., ...
We report on spectral and temporal results of the 40-700 keV observations, obtained with the Gamma-Ray Burst Monitor (GRBM) on board BeppoSAX, of the two large flares from the Soft Gamma-ray Repeater...
The 2001 April Burst Activation of SGR 1900+14: Pulse Properties and Torque (2003)
Woods, P. M., Kouveliotou, C., Gogus, E., Finger, M. H., Feroci, M., Mereghetti, S., ...
We report on observations of SGR 1900+14 made with the Rossi X-ray Timing Explorer (RXTE) and BeppoSAX during the April 2001 burst activation of the source. Using these data, we measure the spindown...
Long and faint GRBs in archival BeppoSAX-WFC data (2003)
Heise, J., Kippen, R. M., Woods, P. M., Guidorzi, C., Montanari, E., ...
In an ongoing effort to search for X-ray transients on diverse time scales in the data archive of the BeppoSAX Wide Field Cameras we have identified four GRBs that are long (between 540 and at least...
The dark burst 010214 with BeppoSAX: possible variable absorption and jet X-ray emission (2003)
Guidorzi, C., Frontera, F., Montanari, E., Amati, L., Antonelli, L. A., ...
We report on the prompt and afterglow emission observations of the dark burst GRB010214 with BeppoSAX. The prompt emission shows possible evidence of variable absorption from N_H = 3.0^{+5.1}_{-2.0}...
BeppoSAX observations of two unclassified LMXBs: X1543-624 and X1556-605 (2003)
Farinelli, R., Frontera, F., Masetti, N., Amati, L., Guidorzi, C., Orlandini, M., ...
Observations of two unclassified Low Mass X-ray Binaries, X1543-624 and X1556-605, are presented. In the 2-10 keV band the first of the two sources is a factor two stronger than the other. Both...
BeppoSAX observations of two unclassified LMXBs: X1543-624 and X1556-605 (2003)
Farinelli, R., Frontera, F., Masetti, N., Amati, L., Guidorzi, C., Orlandini, M., ...
Discovery of GRB 020405 and its Late Red Bump (2002)
Price, P. A., Kulkarni, S. R., Berger, E., Fox, D. W., Bloom, J. S., Djorgovski, S. G., ...
We present the discovery of GRB 020405 made with the Inter-Planetary Network (IPN). With a duration of 60 s, the burst appears to be a typical long duration event. We observed the 75-square acrminute...
Astone, P., Bassan, M., Bonifazi, P., Carelli, P., Castellano, G., Coccia, E., ...
Data obtained during five months of 2001 with the gravitational wave (GW) detectors EXPLORER and NAUTILUS were studied in correlation with the gamma ray burst data (GRB) obtained with the BeppoSAX...
Intrinsic spectra and energetics of BeppoSAX Gamma-Ray Bursts with known redshifts (2002)
Amati, L., Frontera, F., Tavani, M., Antonelli, A., Costa, E., ...
We present the main results of a study of spectral and energetics properties of twelve gamma-ray bursts (GRBs) with redshift estimates. All GRBs in our sample were detected by BeppoSAX in a broad...
GRB 011121: A Massive Star Progenitor (2002)
Price, P. A., Berger, E., Reichart, D. E., Kulkarni, S. R., Subrahmanyan, R., Wark, R. M., ...
Of the cosmological gamma-ray bursts, GRB 011121 has the lowest redshift, z=0.36. More importantly, the multi-color excess in the afterglow detected in the Hubble Space Telescope (HST) light curves...
The Current Performance of the Third Interplanetary Network (2002)
Hurley, K., Cline, T., Mitrofanov, I., Mazets, E., Golenetskii, S., Frontera, F., ...
The 3rd Interplanetary Network (IPN) has been operating since April 2001 with two distant spacecraft, Ulysses and Mars Odyssey, and numerous near-Earth spacecraft, such as BeppoSAX, Wind, and...
BeppoSAX measurements of the bright gamma-ray burst 010222 (2001)
Kuiper, L.M., Amati, L., Antonelli, L.A., Butler, R.C., Costa, E., ...
Afterglow upper limits for four short duration, hard spectrum gamma-ray bursts (2001)
Hurley, K., Berger, E., Castro-Tirado, A., Cerón, J. M. Castro, Cline, T., Feroci, M., ...
We present interplanetary network localization, spectral, and time history information for four short-duration, hard spectrum gamma-ray bursts, GRB000607, 001025B, 001204, and 010119. All of these...
BeppoSAX measurements of the bright gamma-ray burst 010222 (2001)
Kuiper, L., Amati, L., Antonelli, L. A., Butler, R. C., Costa, E., ...
We analyze the BeppoSAX measurements of the prompt and afterglow emission of the gamma-ray burst GRB010222. Among 45 GRBs detected with the Wide Field Cameras on BeppoSAX, the 40-700 keV fluence of...
Detection of the optical afterglow of GRB 000630: Implications for dark bursts (2001)
Fynbo, J. U., Jensen, B. L., Gorosabel, J., Hjorth, J., Pedersen, H., Moller, P., ...
We present the discovery of the optical transient of the long-duration gamma-ray burst GRB000630. The optical transient was detected with the Nordic Optical Telescope 21.1 hours after the burst. At...
Discovery of a Transient Absorption Edge in the X-ray Spectrum of GRB 990705 (2000)
Amati, L., Frontera, F., Vietri, M., Soffitta, P., Costa, E., ...
We report the discovery of a transient equivalent hydrogen column density with an absorption edge at ~3.8 kiloelectron volts in the spectrum of the prompt x-ray emission of gamma-ray burst (GRB)...
In-flight performances of the BeppoSAX Gamma-Ray Burst Monitor (1997)
Feroci, M., Frontera, F., Costa, E., Fiume, D. Dal, Amati, L., Bruca, L., ...
The Italian-Dutch satellite for X-ray Astronomy BeppoSAX is successfully operating on a 600 km equatorial orbit since May 1996. We present here the in-flight performances of the Gamma Ray Burst...