VERITAS Upper Limit on the VHE Emission from the Radio Galaxy NGC 1275 (2009)
Aliu, E., Arlen, T., Aune, T., Bautista, M., Beilicke, M., ...
The recent detection by the Fermi gamma-ray space telescope of high-energy gamma-rays from the radio galaxy NGC 1275 makes the observation of the very high energy (VHE: E > 100 GeV) part of its...
A connection between star formation activity and cosmic rays in the starburst galaxy M 82 (2009)
Acciari, V. A., Aliu, E., Arlen, T., Aune, T., Bautista, M., Beilicke, M., ...
Although Galactic cosmic rays (protons and nuclei) are widely believed to be dominantly accelerated by the winds and supernovae of massive stars, definitive evidence of this origin remains elusive...
Multiwavelength observations of a TeV-Flare from W Comae (2009)
Aliu, E., Aune, T., Beilicke, M., Benbow, W., Bottcher, M., ...
We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z=0.102) during a strong outburst of very high energy gamma-ray emission in...
MULTIWAVELENGTH OBSERVATIONS OF LS I+61 degrees 303 WITH VERITAS, SWIFT, AND RXTE (2009)
Acciari, V. A., Aliu, E., Arlen, T., Bautista, M., Beilicke, M., Benbow, W., ...
Observation of Extended VHE Emission from the Supernova Remnant IC 443 with VERITAS (2009)
Aliu, E., Arlen, T., Aune, T., Bautista, M., Beilicke, M., ...
We present evidence that the very-high-energy (VHE, E > 100 GeV) gamma-ray emission coincident with the supernova remnant IC 443 is extended. IC 443 contains one of the best-studied sites of...
Aliu, E., Arlen, T., Beilicke, M., Benbow, W., Boltuch, D., ...
HESS J0632+057 is one of only two unidentified very-high-energy gamma-ray sources which appear to be point-like within experimental resolution. It is possibly associated with the massive Be star MWC...
Multiwavelength Observations of LS I +61 303 with VERITAS, Swift and RXTE (2009)
Acciari, VERITAS Collaboration:V. A., Aliu, E., Arlen, T., Bautista, M., Beilicke, M., Benbow, W., ...
We present results from a long-term monitoring campaign on the TeV binary LSI +61 303 with VERITAS at energies above 500 GeV, and in the 2-10 keV hard X-ray bands with RXTE and Swift, sampling nine...
VERITAS OBSERVATIONS OF A VERY HIGH ENERGY gamma-RAY FLARE FROM THE BLAZAR 3C 66A (2009)
Acciari, V. A., Aliu, E., Arlen, T., Beilicke, M., Benbow, W., Bottcher, M., ...
VERITAS Observations of a Very High Energy Gamma-ray Flare from the Blazar 3C 66A (2009)
Aliu, E., Arlen, T., Beilicke, M., Benbow, W., Bottcher, M., ...
The intermediate-frequency peaked BL Lacertae (IBL) object 3C 66A is detected during 2007 - 2008 in VHE (very high energy: E > 100 GeV) gamma-rays with the VERITAS stereoscopic array of imaging...
VERITAS observations of the BL Lac 1ES 1218+304 (2009)
Aliu, E., Arlen, T., Beilicke, M., Benbow, W., Bradbury, S. M., ...
The VERITAS collaboration reports the detection of very-high-energy (VHE) gamma-ray emission from the high-frequency-peaked BL Lac object 1ES 1218+304 located at a redshift of z=0.182. A gamma-ray...
Discovery of Very High Energy Gamma-Ray Radiation from the Bl Lac 1es 0806+524 (2009)
Acciari, V., Aliu, E., Arlen, T., Bautista, M., Beilicke, M., Benbow, W., ...
Discovery of a very high energy gamma-ray signal from the 3C 66A/B region (2009)
The MAGIC telescope observed the region around the distant blazar 3C 66A for 54.2 h in 2007 August-December. The observations resulted in the discovery of a gamma-ray source at energies above 150 GeV...
Discovery of Very High-Energy Gamma-Ray Radiation from the BL Lac 1ES 0806+524 (2008)
Aliu, E., Arlen, T., Bautista, M., Beilicke, M., Benbow, W., ...
The high-frequency-peaked BL-Lacertae object \objectname{1ES 0806+524}, at redshift z=0.138, was observed in the very-high-energy (VHE) gamma-ray regime by VERITAS between November 2006 and April...
Status of the VERITAS Observatory (2008)
Holder, J., Acciari, V. A., Aliu, E., Arlen, T., Beilicke, M., Benbow, W., ...
VERITAS, an Imaging Atmospheric Cherenkov Telescope (IACT) system for gammma-ray astronomy in the GeV-TeV range, has recently completed its first season of observations with a full array of four...
Aliu, E., Beilicke, M., Benbow, W., Boettcher, M., Bradbury, S. M., ...
We report the detection of very high-energy gamma-ray emission from the intermediate-frequency-peaked BL Lacertae object W Comae (z=0.102) by VERITAS. The source was observed between January and...
Simultaneous multiwavelength observations of the blazar 1ES1959+650 at a low TeV flux (2008)
Tagliaferri, G., Foschini, L., Ghisellini, G., Maraschi, L., Tosti, G., Albert, J., ...
We present the results from a multiwavelength campaign on the TeV blazar 1ES 1959+650, performed in May, 2006. Data from the optical, UV, soft- and hard-X-ray and very high energy (VHE) gamma-ray (E...
Acciari, V. A., Aliu, E., Beilicke, M., Benbow, W., Bottcher, M., Bradbury, S. M., ...
We report the detection of very high energy gamma- ray emission from the intermediate- frequency- peaked BL Lacertae object W Comae (z = 0.102) by VERITAS. The source was observed between 2008...
J. Albert, E. Aliu, H. Anderhub, P. Antoranz, C. Baixeras, ...
Journal article
Observation of Pulsed Gamma-Rays above 25 GeV From the Crab Pulsar with MAGIC (2008)
The MAGIC Collaboration, Aliu, E.
One fundamental question about pulsars concerns the mechanism of their pulsed electromagnetic emission. Measuring the high-end region of a pulsar's spectrum would shed light on this question. By...
First bounds on the high-energy emission from isolated Wolf-Rayet binary systems (2008)
High-energy gamma-ray emission is theoretically expected to arise in tight binary star systems (with high mass loss and high velocity winds), although the evidence of this relationship has proven to...
The MAGIC Project: Contributions to ICRC 2007 (2007)
Albert, J., Aliu, E., Anderhub, H., Antoranz, P., Armada, A., Baixeras, C., ...
The MAGIC Project: Contributions to ICRC 2007, Merida, Mexico. Contents pages for the Contribution on behalf of the MAGIC Collaboration to the 30th ICRC that took place in July 2007 in Merida,...
Albert, J, Aliu, E, Anderhub, H, Antonelli, L A, Antoranz, P, Backes, M, ...
We use the timing of photons observed by the MAGIC gamma-ray telescope during a flare of the active galaxy Markarian 501 to probe a vacuum refractive index ~ 1-(E/M_QGn)^n, n = 1,2, that might be...
MAGIC upper limits on high energy emission from GRBs (2007)
Albert, J., Aliu, E., Anderhub, H., Antoranz, P., Armada, A., Baixeras, C., ...
The fast repositioning system of the MAGIC Telescope has allowed during its first data cycle, between 2005 and the beginning of year 2006, observing nine different GRBs as possible sources of very...
MAGIC upper limits on the very high energy emission from GRBs (2006)
Albert, J., Aliu, E., Anderhub, H., Antoranz, P., Armada, A., Baixeras, C., ...
The fast repositioning system of the MAGIC Telescope has allowed during its first data cycle, between 2005 and the beginning of year 2006, observing nine different GRBs as possible sources of very...
Deuteron and Anti-deuteron Production in $e^+ e^-$ Collisions at the Z Resonance (2006)
Schael, S, Aubert, B, Zalipska, J, Yoshida, M, Yoo, J, Yokoyama, M, ...
Deuteron and anti-deuteron production in Z decays has been observed in the ALEPH experiment at LEP. The production rate of anti-deuterons is measured to be 5.9+-1.8+-0.5 10^-6 per hadronic Z decay in...
Discovery of VHE gamma-ray emission from 1ES1218+30.4 (2006)
Albert, MAGIC Collaboration: J., Aliu, E., Anderhub, H., Antoranz, P., Armada, A., Asensio, M., ...
The MAGIC collaboration has studied the high peaked BL-Lac object 1ES1218+30.4 at a redshift z = 0.182, using the MAGIC imaging air Cherenkov telescope located on the Canary island of La Palma. A...
Flux upper limit of gamma-ray emission by GRB050713a from MAGIC Telescope observations (2006)
Albert, J., Aliu, E., Anderhub, H., Antoranz, P., Armada, A., Asensio, M., ...
The long-duration GRB050713a was observed by the MAGIC Telescope, 40 seconds after the burst onset, and followed up for 37 minutes, until twilight. The observation, triggered by a SWIFT alert,...
Reconstruction methods of energy spectra for high redshift sources with the MAGIC Telescope (2006)
Mizobuchi, S., Aliu, E., Mazin, D., Teshima, M., Wagner, R. M., Wittek, W., ...
Very high energy gamma-rays are absorbed in the propagation through the intergalactic space by interaction with infrared and visible background photons. Cut-off energies are dependent on the redshift...
Flux upper limit of gamma-ray emission by GRB050713a from MAGIC Telescope observations (2006)
Albert, J., Aliu, E., Anderhub, H., Antoranz, P., Armada, A., Asensio, M., ...
The long-duration GRB050713a was observed by the MAGIC Telescope, 40 seconds after the burst onset, and followed up for 37 minutes, until twilight. The observation, triggered by a SWIFT alert,...
The two-dimensional, finite, gas lubricated, slider bearing in slip flow (2006)
Consider the pressure field in a two dimensional, finite, gas lubricated, slider bearing under so-called `slip flow' conditions; that is, the bearing gap clearance is comparable to the mean free path...
Overlapping layers in a gas lubrication problem (2004)
This investigation considers the operation of a one-dimensional squeeze slider bearing, operating under so-called slip flow conditions. At large values of the bearing and squeeze numbers, slide and...
Pulsar observations with the MAGIC Telescope
The MAGIC Collaboration, Lopez, M., Otte, N., Aliu, E., Et Al.
Pulsars were detected by EGRET up to energies below 20 GeV. Observations at higher energies with ground based experiments so far failed to detect pulsars, indicating a sharp cutoff of the...
Implementation of the Random Forest method for the Imaging Atmospheric Cherenkov Telescope MAGIC
The MAGIC Collaboration, Albert, J., Aliu, E.
The paper describes an application of the tree classification method Random Forest (RF), as used in the analysis of data from the ground-based gamma telescope MAGIC. In such telescopes, cosmic...
MAGIC upper limits on the VHE gamma-ray emission from the satellite galaxy Willman 1
We present the result of the observation of the ultra-faint dwarf galaxy Willman 1 performed with the 17 m MAGIC Cherenkov telescope during 15.5 hours between March and May 2008. No significant...