Measurements of Si Hybrid CMOS X-Ray Detector Characteristics (2009)
Bongiorno, Stephen D., Falcone, Abe D., Burrows, David N., Cook, Robert, Bai, Yibin, Farris, Mark
The development of Hybrid CMOS Detectors (HCDs) for X-Ray telescope focal planes will place them in con- tention with CCDs on future satellite missions due to their faster frame rates, flexible...
Improvement of the Spatial Resolution of the ACIS Using Split Pixel Events (2009)
Hiroshi Tsunemi, Christopher Baluta, David N. Burrows, Gordon P. Garmire, George Chartas
The position accuracy of X-ray photons on a CCD detector is generally believed to be limited by the CCD pixel size. While this is true in general, the position accuracy for X-ray events which deposit...
X-ray Evolution of SNR 1987A: The Radial Expansion (2009)
Racusin, Judith L., Park, Sangwook, Zhekov, Svetozar, Burrows, David N., Garmire, Gordon P., McCray, Richard
We present the evolution of the radial expansion of SNR 1987A as measured using Chandra X-ray observations taken over the last 10 years. To characterize the complex structure of the remnant and...
Grupe, Dirk, Burrows, David N., Wang, Xiang-Yu, Zhang, Bing, Garmire, Gordon, ...
We report on 5 Chandra observations of the X-ray afterglow of the Gamma-Ray Burst GRB 060729 performed between 2007 March and 2008 May. In all five observations the afterglow is clearly detected. The...
Zhang, Bing, Zhang, Bin-Bin, Virgili, Francisco J., Liang, En-Wei, Kann, D. Alexander, Wu, Xue-Feng, ...
(Abridged) The highest redshift (z=6.7) gamma-ray burst (GRB) 080913 recently detected by Swift is an intrinsically short, hard GRB. It would be recognized by BATSE as a short/hard GRB should it have...
Late time observations of GRB080319B: jet break, host galaxy and accompanying supernova (2008)
Tanvir, Nial R., Rol, Evert, Levan, Andrew, Fruchter, Andrew, Granot, Jonathan, Svensson, Karl M., ...
The Swift-discovered GRB080319B was by far the most distant source ever observed at naked eye brightness, reaching a peak magnitude of 5.3 at a redshift of z=0.937. We present our late time optical...
High-Resolution X-ray Spectroscopy of SNR 1987A: Chandra LETG and HETG Observations in 2007 (2008)
Zhekov, Svetozar A., McCray, Richard, Dewey, Daniel, Canizares, Claude R., Borkowski, Kazimierz J., Burrows, David N., ...
We present an extended analysis of the deep Chandra LETG and HETG observations of the supernova remnant 1987A (SNR 1987A) carried out in 2007. The global fits to the grating spectra show that the...
Park, Sangwook, Kargaltsev, Oleg, Pavlov, George G., Mori, Koji, Slane, Patrick O., Hughes, John P., ...
We present results from our X-ray data analysis of the SNR G330.2+1.0 and its CCO, CXOU J160103.1--513353 (J1601). Using our XMM-Newton and Chandra observations, we find that the X-ray spectrum of...
The Rapidly Flaring Afterglow of the Very Bright and Energetic GRB 070125 (2008)
Updike, Adria C., Haislip, Joshua B., Nysewander, Melissa C., Fruchter, Andrew S., Kann, D. Alexander, Klose, Sylvio, ...
We report on multi-wavelength observations, ranging from the X-ray to radio wave bands, of the IPN-localized gamma-ray burst GRB 070125. Spectroscopic observations reveal the presence of absorption...
The Swift X-Ray Telescope: Status and Performance (2008)
Burrows, David N., Kennea, J. A., Abbey, A. F., Beardmore, A., Campana, S., Capalbi, M., ...
We present science highlights and performance from the Swift X-ray Telescope (XRT), which was launched on November 20, 2004. The XRT covers the 0.2-10 keV band, and spends most of its time observing...
Broadband observations of the naked-eye y-ray burst GRB 080319B (2008)
Racusin, Judith L., Karpov, S. V., Sokolowski, M., Granot, Jonathan, Wu, Xiao Feng, Pal'shin, V., ...
Long-duration y-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 of...
Broadband observations of the naked-eye y-ray burst GRB 080319B (2008)
Racusin, Judith L., Karpov, S. V., Sokolowski, M., Granot, Jonathan, Wu, Xiao Feng, Pal'shin, V., ...
Long-duration y-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 of...
X-ray flare in XRF 050406: evidence for prolonged engine activity (2007)
Romano, Patrizia, Moretti, Alberto, Banat, P.L., Burrows, David N., Campana, Sergio, Chincarini, Guido, ...
We present observations of XRF 050406, the first burst detected by Swift showing a flare in its X-ray light curve. During this flare, which peaks at t_peak ~210s after the BAT trigger, a flux...
Swift XRT Observations of the Afterglow of GRB 050319 (2007)
Cusumano, Giancarlo, Mangano, Vanessa, Angelini, Lorella, Barthelmy, Scott, Beardmore, Andrew P., Burrows, David N., ...
Swift discovered the high redshift GRB 050319 with the Burst Alert Telescope and began observing with its narrow field instruments only 225 s after the burst onset. The afterglow X-ray emission was...
The association of GRB 060218 with a supernova and the evolution of the shock wave (2007)
Campana, Sergio, Mangano, Vanessa, Blustin, A.J., Brown, P., Burrows, David N., Chincarini, Guido, ...
Although the link between long Gamma Ray Bursts (GRBs) and supernovae (SNe) has been established, hitherto there have been no observations of the beginning of a supernova explosion and its intimate...
A Half-Megasecond Chandra Observation of the Oxygen-Rich Supernova Remnant G292.0+1.8 (2007)
Park, Sangwook, Hughes, John P., Slane, Patrick O., Burrows, David N., Gaensler, B. M., Ghavamian, Parviz
We report on our initial analysis of a deep 510 ks observation of the Galactic oxygen-rich supernova remnant (SNR) G292.0+1.8 with the {\it Chandra X-ray Observatory}. Our new {\it Chandra} ACIS-I...
Liang, En-Wei, Racusin, Judith L., Zhang, Bing, Zhang, Bin-Bin, Burrows, David N.
The Swift/XRT data of 179 GRBs (from 050124 to 070129) and the optical afterglow data of 57 pre- and post-Swift GRBs are analyzed, in order to systematically investigate the jet-like breaks in the...
GRB051022: physical parameters and extinction of a prototype dark burst (2007)
Rol, Evert, Van Der Horst, Alexander, Wiersema, Klaas, Patel, Sandeep K., Levan, Andrew, Nysewander, Melissa, ...
GRB051022 was undetected to deep limits in early optical observations, but precise astrometry from radio and X-ray showed that it most likely originated in a galaxy at z~0.8. We report radio,...
Chandra X-Ray Study of Galactic Supernova Remnant G299.2-2.9 (2007)
Park, Sangwook, Slane, Patrick O., Hughes, John P., Mori, Koji, Burrows, David N., Garmire, Gordon P.
We report on observations of the Galactic supernova remnant (SNR) G299.2$-$2.9 with the {\it Chandra X-Ray Observatory}. The high resolution images with {\it Chandra} resolve the X-ray-bright knots,...
Chandra Observations of Supernova 1987A (2007)
Park, Sangwook, Burrows, David N., Garmire, Gordon P., McCray, Richard, Racusin, Judith L., Zhekov, Svetozar A.
We have been monitoring Supernova (SN) 1987A with {\it Chandra X-Ray Observatory} since 1999. We present a review of previous results from our {\it Chandra} observations, and some preliminary results...
Swift X-ray Afterglows: Where are the X-ray Jet Breaks? (2007)
Burrows, David N., Racusin, Judith
We examine the Swift/X-ray Telescope (XRT) light curves from the first ~150 gamma-ray burst (GRB) afterglows. Although we expected to find jet breaks at typical times of 1-2 days after the GRB, we...
Making a Short Gamma-Ray Burst from a Long one: Implications for the Nature of GRB 060614 (2006)
Zhang, Bing, Zhang, Bin-Bin, Liang, En-Wei, Gehrels, Neil, Burrows, David N., Meszaros, Peter
The absence of a supernova accompanying the nearby long GRB 060614 poses a great puzzle about the progenitor of this event and challenges the current GRB classification scheme. This burst displays a...
Gamma Ray Bursts Flares detected and observed by the Swift Satellite (2006)
Chincarini, Guido, Moretti, Alberto, Romano, Patrizia, Campana, Sergio, Covino, Stefano, Tagliaferri, Gianpiero, ...
The detection of flares with the Swift satellite triggered a lot of bservational and theoretical interest in these phenomena. As a consequence a large analysis effort started within the community to...
Redshift Filtering by Swift Apparent X-ray Column Density (2006)
Grupe, Dirk, Nousek, John A., Berk, Daniel E. Vanden, Roming, Peter W. A., Burrows, David N., Godet, Olivier, ...
We remark on the utility of an observational relation between the absorption column density in excess of the Galactic absorption column density, $\Delta N_{\rm H} = N_{\rm H, fit} - N_{\rm H, gal}$,...
GRB Radiative Efficiencies Derived from the Swift Data: GRBs vs. XRFs, Long vs. Short (2006)
Zhang, Bing, Liang, Enwei, Page, Kim L., Grupe, Dirk, Zhang, Bin-Bin, Barthelmy, Scott D., ...
We systematically analyze the prompt emission and the early afterglow data of a sample of 31 GRBs detected by {\em Swift} before September 2005, and estimate the GRB radiative efficiency. BAT's...
Discovery of a Candidate Central Compact Object in the Galactic Nonthermal SNR G330.2+1.0 (2006)
Park, Sangwook, Mori, Koji, Kargaltsev, Oleg, Slane, Patrick O., Hughes, John P., Burrows, David N., ...
We report on the discovery of a pointlike source (CXOU J160103.1$-$513353) at the center of a Galactic supernova remnant (SNR) G330.2+1.0 with {\it Chandra X-Ray Observatory}. The X-ray spectrum fits...
The first Swift X-ray flash: the faint afterglow of XRF 050215B (2006)
Levan, Andrew J., Osborne, Julian P., Tanvir, Nial R., Page, Kim L., Rol, Evert, Zhang, B., ...
The definitive version of this paper, with enhancements, is available from http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v648n2/64894/64894.html
The early X-ray emissions from GRBs (2006)
O'Brien, Paul T., Willingale, R., Osborne, Julian P., Goad, Michael R., Page, Kim L., Vaughan, Simon, ...
The definitive version of this paper, with enhancements, is available from http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v647n2/64315/64315.html
Liang, E.W., Zhang, B., O'Brien, Paul T., Willingale, R., Angelini, Lorella, Burrows, David N., ...
The definitive version of this paper, with enhancements, is available from http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v646n1/64620/64620.html
The Swift X-ray flaring afterglow of GRB 050607 (2006)
Pagani, Claudio, Morris, David C., Kobayashi, Shiho, Sakamoto, Takanori, Falcone, Abraham D., Moretti, Alberto, ...
The definitive version of this paper is available at http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v645n2/64323/64323.html
GRB 050505: a high-redshift burst discovered by Swift (2006)
Hurkett, C.P., Osborne, Julian P., Page, Kim L., Rol, Evert, Goad, Michael R., O'Brien, Paul T., ...
Also available at http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-2966.2006.10188.x. The definitive version is available at www.blackwell-synergy.com.
GRB 060313: A New Paradigm for Short-Hard Bursts? (2006)
Roming, Peter W. A., Berk, Daniel Vanden, Palshin, Valentin, Pagani, Claudio, Norris, Jay, Kumar, Pawan, ...
We report the simultaneous observations of the prompt emission in the gamma-ray and hard X-ray bands by the Swift-BAT and the KONUS-Wind instruments of the short-hard burst, GRB 060313. The...
Jet Breaks in Short Gamma-Ray Bursts. II: The Collimated Afterglow of GRB 051221A (2006)
Burrows, David N., Grupe, Dirk, Capalbi, Milvia, Panaitescu, Alin, Patel, Sandeep K., Kouveliotou, Chryssa, ...
We report the best evidence to date of a jet break in a short Gamma-Ray Burst (GRB) afterglow, using Chandra and Swift XRT observations of the X-ray afterglow of GRB 051221A. The combined X-ray light...
Evolutionary Status of SNR 1987A at the Age of Eighteen (2006)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., Garmire, Gordon P., Racusin, Judith L., McCray, Richard
$\sim$18 yr after the supernova explosion, the blast wave of SNR 1987A is entering the main body of the equatorial circumstellar material, which is causing a dramatic brightening of the remnant. We...
Swift XRT Observations of the Afterglow of XRF 050416A (2006)
Mangano, Vanessa, La Parola, Valentina, Cusumano, Giancarlo, Mineo, Teresa, Malesani, Daniele, Dyks, Jaroslaw, ...
Swift discovered XRF 050416A with the BAT and began observing it with its narrow field instruments only 64.5 s after the burst onset. Its very soft spectrum classifies this event as an X-ray flash....
The Swift X-ray flaring afterglow of GRB 050607 (2006)
Pagani, Claudio, Morris, David C., Kobayashi, Shiho, Sakamoto, Takanori, Falcone, Abraham D., Moretti, Alberto, ...
The unique capability of the Swift satellite to perform a prompt and autonomous slew to a newly detected Gamma-Ray Burst (GRB) has yielded the discovery of interesting new properties of GRB X-ray...
Swift Observations of GRB 050603: An afterglow with a steep late time decay slope (2006)
Grupe, Dirk, Brown, Peter, Cummings, Jay, Zhang, Bing, Retter, Alon, Burrows, David N., ...
We report the results of Swift observations of the Gamma Ray Burst GRB 050603. With a V magnitude V=18.2 about 10 hours after the burst the optical afterglow was the brightest so far detected by...
Chandra LETG Observations of Supernova Remnant 1987A (2006)
Zhekov, Svetozar A., McCray, Richard, Borkowski, Kazimierz J., Burrows, David N., Park, Sangwook
We discuss the results from deep Chandra LETG observations of the supernova remnant 1987A (SNR 1987A). We find that a distribution of shocks, spanning the same range of velocities (from 300 to 1700...
A unified picture for gamma-ray burst prompt and X-ray afterglow emissions (2006)
Kumar, P., McMahon, E., Barthelmy, Scott D., Burrows, David N., Gehrels, Neil, Goad, Michael R., ...
Also available at http://www.blackwell-synergy.com/doi/abs/10.1111/j.1745-3933.2006.00138.x. The definitive version is available at www.blackwell-synergy.com.
Late-time X-ray flares during GRB afterglows: extended internal engine activity (2006)
Falcone, Abraham D., Burrows, David N., Romano, Patrizia, Kobayashi, Shiho, Lazzati, D., Zhang, B., ...
Also available via arxiv.org.
The shock break-out of GRB060218/SN2006aj (2006)
Campana, Sergio, Mangano, V., Blustin, A.J., Brown, P., Burrows, David N., Chincarini, Guido, ...
This is a preprint, as archived in arXiv.org, of the paper subsequently published as Nature, 2006, 442, pp.1008-1010 and available from...
Evidence for intrinsic absorption in the Swift X-ray afterglows (2006)
Campana, Sergio, Romano, Patrizia, Covino, S., Lazzati, D., De Luca, A., Chincarini, Guido, ...
The definitive version of this paper is available from www.edpsciences.org/aa
Swift observations of the prompt X-ray emission and afterglow from GRB050126 and GRB050219A (2006)
Goad, Michael R., Tagliaferri, Gianpiero, Page, Kim L., Moretti, Alberto, Osborne, Julian P., Kobayashi, Shiho, ...
The definitive version of this paper is available from www.edpsciences.org/aa.
Swift and XMM-Newton observations of the dark GRB 050326 (2006)
Moretti, Alberto, De Luca, A., Malesani, D., Campana, Sergio, Tiengo, A., Cucchiara, A., ...
The definitive version of this paper is available from www.edpsciences.org/aa
A refined position catalogue of the Swift XRT afterglows (2006)
Moretti, Alberto, Perri, M., Capalbi, M., Angelini, Lorella, Hill, Joanne E., Campana, Sergio, ...
The definitive version of this paper is available from www.edpsciences.org/aa. Table 1 for this paper is available from www.edpsciences.org/aa.
Panchromatic study of GRB 060124: from precursor to afterglow (2006)
Romano, Patrizia, Campana, Sergio, Chincarini, Guido, Cummings, J.R., Cusumano, Giancarlo, Holland, S.T., ...
The definitive version of this paper is available from www.edpsciences.org/aa
The X-ray afterglow of the short gamma ray burst 050724 (2006)
Campana, Sergio, Tagliaferri, Gianpiero, Lazzati, D., Chincarini, Guido, Covino, S., Page, Kim L., ...
The definitive version of this paper is available from www.edpsciences.org/aa
X-ray flare in XRF 050406: evidence for prolonged engine activity (2006)
Romano, Patrizia, Moretti, Alberto, Banat, P.L., Burrows, David N., Campana, Sergio, Chincarini, Guido, ...
The definitive version of this paper is available from www.edpsciences.org/aa
X-ray flares in the early Swift observations of the possible naked gamma-ray burst 050421 (2006)
Godet, Olivier, Page, Kim L., Osborne, Julian P., O'Brien, Paul T., Burrows, David N., Hill, Joanne E., ...
The definitive version of this paper is available from www.edpsciences.org/aa
Swift observations of the highly X-ray variable narrow-line seyfert 1 galaxy RX J0148.3-2758 (2006)
Grupe, Dirk, Leighly, Karen M., Komossa, Stefanie, Schady, Patricia, O'Brien, Paul T., Burrows, David N., ...
The early X-ray emission from GRBs (2006)
O'Brien, Paul T., Willingale, R., Osborne, Julian P., Goad, Michael R., Page, Kim L., Vaughan, Simon A., ...
Supernova Remnant 1987A: High Resolution Images and Spectrum from Chandra Observations (2005)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., Racusin, Judith L., McCray, Richard, Borkowski, Kazimierz J.
We report on the morphological and spectral evolution of SNR 1987A from the monitoring observations with the Chandra/ACIS. As of 2005, the X-ray-bright lobes are continuously brightening and...
Swift XRT Observations of X-ray Flares in GRB Afterglows (2005)
Burrows, David N., Romano, P., Godet, O., Falcone, A., Pagani, C., Cusumano, G., ...
The Swift XRT has been observing GRB afterglows since December 23, 2004. Three-quarters of these observations begin within 300 s of the burst onset, providing an unprecendented look at the behavior...
Supernova Remnant 1987A: Opening the Future by Reaching the Past (2005)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., McCray, Richard
We report an up-turn in the soft X-ray light curve of supernova remnant (SNR) 1987A in late 2003 (~6200 days after the explosion), as observed with the Chandra X-ray Observatory. Since early 2004,...
Zhang, Bing, Fan, Y. Z., Dyks, Jaroslaw, Kobayashi, Shiho, Meszaros, Peter, Burrows, David N., ...
(Abridged) The Swift X-Ray Telescope (XRT) reveals some interesting features of early X-ray afterglows, including a distinct rapidly decaying component preceding the conventional afterglow component...
The Swift X-ray Telescope (2005)
Burrows, David N., Hill, J. E., Nousek, J. A., Kennea, J. A., Wells, A., Osborne, J. P., ...
The Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of Gamma-Ray Bursts (GRBs) and GRB afterglows. The X-ray Telescope (XRT) enables Swift to determine GRB positions...
A Candidate Neutron Star Associated with Galactic Center Supernova Remnant Sagittarius A East (2005)
Park, Sangwook, Muno, Michael P., Baganoff, Frederick K., Maeda, Yoshitomo, Morris, Mark, Chartas, George, ...
We present imaging and spectral studies of the supernova remnant (SNR) Sagittarius (Sgr) A East from deep observations with the {\it Chandra X-Ray Observatory}. The spatially-resolved spectral...
Inverse Compton X-ray Flare from GRB Reverse Shock (2005)
Kobayashi, Shiho, Zhang, Bing, Meszaros, Peter, Burrows, David N.
We study synchrotron self-inverse Compton radiation from a reverse-shocked fireball. If the inverse Compton process dominates the cooling of shocked electrons, an X-ray flare produced by the first...
Swift XRT and VLT Observations of the Afterglow of GRB 041223 (2005)
Burrows, David N., Hill, Joanne E., Chincarini, Guido, Tagliaferri, Gianpiero, Campana, Sergio, Moretti, Alberto, ...
The Swift Gamma-Ray Burst Explorer, launched on 2004 November 20, is a multiwavelength, autonomous, rapid-slewing observatory for gamma-ray burst (GRB) astronomy. On 2004 December 23, during the...
Supernova Remnant 1987A: The Latest Report from the Chandra X-Ray Observatory (2005)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., Garmire, Gordon P., McCray, Dick
We continue monitoring supernova remnant (SNR) 1987A with the {\it Chandra X-ray Observatory}. As of 2004 January, bright X-ray spots in the northwest and the southwest are now evident in addition to...
Swift XRT observations of the breaking X-ray afterglow of GRB 050318 (2005)
Perri, M., Giommi, Paolo, Capalbi, M., Amati, L., Frontera, F., Chincarini, Guido, ...
The definitive version of this paper is available from www.edpsciences.org/aa
The Swift X-Ray Telescope (2005)
Burrows, David N., Hill, J. E., Nousek, J. A., Kennea, J. A., Wells, A., Osborne, J. P., ...
An unexpectedly rapid decline in the X-ray afterglow emission of long gamma-ray bursts (2005)
Tagliaferri, Gianpiero, Goad, Michael R., Chincarini, Guido, Moretti, Alberto, Campana, Sergio, Burrows, David N., ...
A short gamma-ray burst apparently associated with an elliptical galaxy at redshift 0.225 (2005)
Gehrels, Neil, Sarazin, C.L., O'Brien, Paul T., Zhang, B., Barbier, L., Barthelmy, Scott D., ...
Roming, Peter W. A., Liechty, John C., Shoemaker, Jared R., Sohn, David H., Roush, William B., Burrows, David N., ...
Utilizing a ray-tracing program, we have modeled the angular resolution of a short focal length (~2m), large field-of-view (3.1 square degrees), grazing incidence mirror shell. It has been previously...
A Chandra View of The Morphological And Spectral Evolution of Supernova Remnant 1987A (2004)
Park, Sangwook, Zhekov, Svetozar A., Burrows, David N., Garmire, Gordon P., McCray, Richard
We present an update on the results of our monitoring observations of the X-ray remnant of supernova (SN) 1987A with the {\it Chandra X-Ray Observatory}. As of 2002 December, we have performed a...
The Swift X-Ray Telescope (2004)
Burrows, David N., Hill, J. E., Nousek, J. A., Wells, A., Chincarini, G., Abbey, A. F., ...
Park, Sangwook, Hughes, John P., Slane, Patrick O., Burrows, David N., Roming, Peter W. A., Nousek, John A., ...
We continue our analysis of the Galactic oxygen-rich supernova remnant (SNR) G292.0+1.8, which was observed with the {\it Chandra X-ray Observatory}. The high angular resolution {\it Chandra} data...
Monitoring The Evolution of SNR 1987A with Chandra (2003)
Park, Sangwook, Burrows, David N., Garmire, Gordon P., Zhekov, Svetozar A., McCray, Dick
We report on the results of our monitoring program of SNR 1987A with the Chandra X-Ray Observatory. The high resolution images and the spectra from the latest Chandra data suggest that the blast wave...
0103-72.6: A New Oxygen-Rich Supernova Remnant in the Small Magellanic Cloud (2003)
Park, Sangwook, Hughes, John P., Burrows, David N., Slane, Patrick O., Nousek, John A., Garmire, Gordon P.
0103$-$72.6, the second brightest X-ray supernova remnant (SNR) in the Small Magellanic Cloud (SMC), has been observed with the {\it Chandra X-Ray Observatory}. Our {\it Chandra} observation...
Detection of Magnesium-Rich Ejecta in the Middle-Aged Supernova Remnant N49B (2003)
Park, Sangwook, Hughes, John P., Slane, Patrick O., Burrows, David N., Warren, Jess Ica S., Garmire, Gordon P., ...
The middle-aged supernova remnant (SNR) N49B in the Large Magellanic Cloud has been observed with the {\it Chandra X-Ray Observatory}. The superb angular resolution of {\it Chandra} resolves the...
An X-Ray Pulsar in the Oxygen-Rich Supernova Remnant G292.0+1.8 (2003)
Hughes, John P., Slane, Patrick O., Park, Sangwook, Roming, Peter W. A., Burrows, David N.
We report the discovery of pulsed X-ray emission from the compact object CXOU J112439.1-591620 within the supernova remnant (SNR) G292.0+1.8 using the High Resolution Camera on the Chandra X-ray...
X-Ray Emission from Multi-Phase Shock in the Large Magellanic Cloud Supernova Remnant N49 (2002)
Park, Sangwook, Burrows, David N., Garmire, Gordon P., Nousek, John A., Hughes, John P., Williams, Rosa Murphy
The supernova remnant (SNR) N49 in the Large Magellanic Cloud has been observed with the Advanced CCD Imaging Spectrometer (ACIS) on board the {\it Chandra X-Ray Observatory}. The superb angular...
The Radial Structure of SNR N103B (2002)
Lewis, Karen T., Burrows, David N., Hughes, John P., Slane, Patrick O., Garmire, Gordon P., Nousek, John A.
We report on the results from a Chandra ACIS observation of the young, compact, supernova remnant N103B. The unprecedented spatial resolution of Chandra reveals sub-arcsecond structure, both in the...
X-ray spectrum of supernova remnant 1987A (2002)
Michael, Eli, Zhekov, Svetozar, McCray, Richard, Hwang, Una, Burrows, David N., Park, Sangwook, ...
We discuss the X-ray emission observed from supernova remnant 1987A with the Chandra X-Ray Observatory. We analyze a high- resolution spectrum obtained in 1999 October with the high- energy...
The X-ray Spectrum of Supernova Remnant 1987A (2001)
Michael, Eli, Zhekov, Svetozar, McCray, Richard, Hwang, Una, Burrows, David N., Park, Sangwook, ...
We discuss the X-ray emission observed from Supernova Remnant 1987A with the Chandra X-ray Observatory. We analyze a high resolution spectrum obtained in 1999 October with the high energy...
Park, Sangwook, Roming, Peter W. A., Hughes, John P., Slane, Patrick O., Burrows, David N., Garmire, Gordon P., ...
We present results from the observation of the young Galactic supernova remnant (SNR) G292.0+1.8 with the Advanced CCD Imaging Spectrometer (ACIS) on board the {\it Chandra X-ray Observatory}. In the...
Monitoring the Evolution of the X-ray Remnant of SN 1987A (2001)
Park, Sangwook, Burrows, David N., Garmire, Gordon P., Nousek, John A., McCray, Richard, Michael, Eli, ...
We report on the results of our monitoring program of the remnant of SN 1987A with the Advanced CCD Imaging Spectrometer (ACIS) on board the {\it Chandra X-ray Observatory}. Two new observations have...
The Small-scale Structure of N103B - Nature of Nuture? (2001)
Lewis, Karen T., Burrows, David N., Hughes, John P., Slane, Patrick, Garmire, Gordon P., Nousek, John A.
We present new results from a 40.8 ks Chandra ACIS observation of the young supernova remnant (SNR) N103B located in the Large Magellanic Cloud. The high resolution Chandra image reveals structure at...
A Pulsar Wind Nebula in the Oxygen-Rich Supernova Remnant G292.0+1.8 (2001)
Hughes, John P., Slane, Patrick O., Burrows, David N., Garmire, Gordon, Nousek, John A.
Using the Chandra X-ray Observatory we have discovered a diffuse, center-filled region of hard X-ray emission within the young, oxygen-rich supernova remnant (SNR) G292.0+1.8. Near the peak of this...
Improvement of the Spatial Resolution of the ACIS Using Split Pixel Events (2001)
Tsunemi, Hiroshi, Mori, Koji, Miyata, Emi, Baluta, Christopher, Burrows, David N., Garmire, Gordon P., ...
The position accuracy of X-ray photons on a CCD detector is generally believed to be limited by the CCD pixel size. While this is true in general, the position accuracy for X-ray events which deposit...
The X-ray Remnant of SN1987A (2000)
Burrows, David N., Michael, Eli, Hwang, Una, McCray, Richard, Chevalier, Roger A., Petre, Robert, ...
We present high resolution Chandra observations of the remnant of SN1987A in the Large Magellanic Cloud. The high angular resolution of the Chandra X-ray Observatory (CXO) permits us to resolve the...
Nucleosynthesis and Mixing in Cassiopeia A (1999)
Hughes, John P., Rakowski, Cara E., Burrows, David N., Slane, Patrick O.
We present results from the first light observations of the Cassiopeia A (Cas A) supernova remnant (SNR) by the Chandra X-ray Observatory. The X-ray spectrum varies on all spatial scales down to the...
Distances to the high galactic latitude molecular clouds G192-67 and MBM 23-24 (1999)
Grant, Catherine E., Burrows, David N.
We report on distance determinations for two high Galactic latitude cloud complexes, G192-67 and MBM 23-24. No distance determination exists in the literature for either cloud. Thirty-four early type...
ASCA Observations of the Supernova Remnant VRO42.05.01 (1997)
We present the results of our ASCA SIS and GIS observations of the supernova remnant VRO42.05.01. Our spectral fits indicate that the SNR is isothermal (about 8.3 X 10^6 K), consistent with our ROSAT...