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...
Prospects for GRB Science with the Fermi Large Area Telescope (2009)
Band, D. L., Axelsson, M., Baldini, L., Barbiellini, G., Baring, M. G., Bastieri, D., ...
The LAT instrument on the Fermi mission will reveal the rich spectral and temporal gamma-ray burst phenomena in the > 100 MeV band. The synergy with Fermi's GBM detectors will link these observations...
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...
What Are Gamma-Ray Bursts -- The Unique Role of Very High Energy Gamma-Ray Observations (2009)
Williams, D. A., Falcone, A. D., Baring, M. G., Buckley, J., Connaughton, V., Coppi, P., ...
Gamma-ray bursts (GRBs) have been an enigma since their discovery forty years ago. However, considerable progress unraveling their mysteries has been made in recent years. Developments in...
Is the Rapid Decay Phase from High Latitude Emission? (2009)
There is good observationnal evidence that the Steep Decay Phase (SDP) that is observed in most Swift GRBs is the tail of the prompt emission. The most popular model to explain the SDP is Hight...
SN 2001em: NOT SO FAST. (2009)
Schinzel, F.K., Taylor, G.B., Stockdale, C.J., Granot, J., Ramirez-Ruiz, E.
Original article can be found at: http://www.iop.org/EJ/journal/apj Copyright American Astronomical Society / IOP Publishing. DOI: 10.1088/0004-637X/691/2/1380 [Full text of this article is not...
GRB 080503: Implications of a Naked Short Gamma-Ray Burst Dominated by Extended Emission. (2009)
Perley, D.A., Metzger, B.D., Granot, J., Butler, N.R., Sakamoto, T., Ramirez-Ruiz, E., ...
Original article can be found at: http://www.iop.org/EJ/journal/ap Copyright IOP Publishing / American Astronomical Society. DOI: 10.1088/0004-637X/696/2/1871 [Full text of this article is not...
GRB 080503: implications of a naked short gamma-ray burst dominated by extended emission (2009)
Perley, D. A., Metzger, B. D., Granot, J., Butler, N. R., Sakamoto, T., Ramirez-Ruiz, Enrico, ...
We report on observations of GRB 080503, a short gamma-ray burst (GRB) with very bright extended emission (about 30 times the gamma-ray fluence of the initial spike) in conjunction with a thorough...
Fermi observations of high-energy gamma-ray emission from GRB 080916C (2009)
Abdo, A. A., Ackermann, M., Arimoto, M., Asano, K., Atwood, W. B., Axelsson, M., ...
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
Is the Rapid Decay Phase from High Latitude Emission? (2009)
"Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only.Any other use requires prior permission of the author and the American Institute of Physics....
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., ...
GRB 080503: implications of a naked short gamma-ray burst dominated by extended emission (2009)
Perley, D. A., Metzger, B. D., Granot, J., Butler, N. R., Sakamoto, T., Ramirez-Ruiz, Enrico, ...
We report on observations of GRB 080503, a short gamma-ray burst (GRB) with very bright extended emission (about 30 times the gamma-ray fluence of the initial spike) in conjunction with a thorough...
Prospects for GRB science with the Fermi large area telescope (2009)
Band, D. L., Axelsson, M., Baldini, L., Barbiellini, G., Baring, M. G., Bastieri, D., ...
Testing High Latitude Emission in GRBs (2008)
Most gamma-ray bursts (GRBs) observed by the Swift satellite show an early rapid decay phase (RDP) in their X-ray lightcurve, which is usually a smooth continuation of the prompt gamma-ray emission,...
GRB 080503: Implications of a Naked Short Gamma-Ray Burst Dominated by Extended Emission (2008)
Perley, D. A., Metzger, B. D., Granot, J., Butler, N. R., Sakamoto, T., Ramirez-Ruiz, E., ...
We report on observations of GRB 080503, a short gamma-ray burst with very bright extended emission (about 30 times the gamma-ray fluence of the initial spike) in conjunction with a thorough...
Schinzel, F. K., Taylor, G. B., Stockdale, C. J., Granot, J., Ramirez-Ruiz, E.
SN 2001em is a peculiar supernova, originally classified as Type Ib/c. About two years after the SN it was detected in the radio, showing a rising radio flux with an optically thin spectral slope,...
Falcone, A. D., Williams, D. A., Baring, M. G., Blandford, R., Buckley, J., Connaughton, V., ...
This is a report on the findings of the gamma ray burst working group for the white paper on the status and future of TeV gamma-ray astronomy. The white paper is an APS commissioned document, and the...
An infrared ring around the magnetar SGR 1900+14 (2008)
Wachter, S., Ramirez-Ruiz, E., Dwarkadas, V. V., Kouveliotou, C., Granot, J., Patel, S. K., ...
Magnetars are a special class of slowly rotating neutron stars with extremely strong magnetic fields -- at least an order of magnitude larger than those of the "normal" radio pulsars. The potential...
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...
Falcone, A. D., Williams, D. A., Baring, M. G., Blandford, R., Connaughton, V., Coppi, P., ...
This is a short report on the preliminary findings of the gamma ray burst (GRB) working group for the white paper on the status and future of very high energy (VHE; >50 GeV) gamma-ray astronomy. The...
Falcone, A.D., Williams, D.A., Baring, M.G., Blandford, R., Connaughton, V., Coppi, P., ...
Original paper can be found at: http://proceedings.aip.org/proceedings/ Copyright American Institute of Physics DOI: 10.1063/1.2943545
An infrared ring around the magnetar SGR 1900+14. (2008)
Wachter, S., Ramirez-Ruiz, E., Dwarkadas, V.V., Kouveliotou, C., Granot, J., Patel, S.K., ...
Original article can be found at: http://www.nature.com/nature/journal/v453/n7195/index.html Copyright Nature Publishing Group DOI: 10.1038/nature06987
Opacity Buildup in Impulsive Relativistic Sources. (2008)
Original article can be found at: http://www.iop.org/EJ/journal/apj Copyright American Astronomical Society. DOI: 10.1086/526414 [Full text of this article is not available in UHRA]
Broadband observations of the naked-eye gamma-ray burst GRB 080319B. (2008)
Racusin, J.L., Karpov, S.V., Sokolowski, M., Granot, J.
Original article can be found at: http://www.nature.com/ Copyright Nature Publishing Group DOI: 10.1038/nature07270
Analytic expressions for the surface brightness profile of gamma-ray burst afterglow images. (2008)
The original article can be found at: http://www3.interscience.wiley.com Copyright Royal Astronomical Society. DOI: 10.1111/j.1745-3933.2008.00533.x
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...
Stirring the Embers: High Sensitivity VLBI Observations of GRB030329 (2007)
Pihlström, Y. M., Taylor, G. B., Granot, J., Doeleman, S.
We present high sensitivity Very Long Baseline Interferometry (VLBI) observations 806 days after the gamma-ray burst of 2003 March 29 (GRB030329). The angular diameter of the radio afterglow is...
GRB 060714: No Clear Dividing Line Between Prompt Emission and X-ray Flares (2007)
Krimm, H. A., Granot, J., Marshal, F., Perri, M., Barthelmy, S. D., Burrows, D. N., ...
The long gamma-ray burst GRB 060714 was observed to exhibit a series of five X-ray flares beginning ~70 s after the burst trigger T0 and continuing until T0 + ~200 s. The first two flares were...
Kaneko, Y., Ramirez-Ruiz, E., Granot, J., Kouveliotou, C., Woosley, S.E., Patel, S.K., ...
We present a detailed spectral analysis of the prompt and afterglow emission of four nearby long-soft gamma-ray bursts (GRBs 980425, 030329, 031203, and 060218) that were spectroscopically found to...
The structure and dynamics of GRB jets. (2007)
Original paper can be found at: http://www.astroscu.unam.mx/~rmaa/rmaa.html Copyright Universidad Nacional Autonoma de Mexico
Gehrels, N., Norris, J. P., Mangano, V., Barthelmy, S. D., Burrows, D. N., Granot, J., ...
Gamma ray bursts (GRBs) are known to come in two duration classes, separated at ~2 s. Long bursts originate from star forming regions in galaxies, have accompanying supernovae (SNe) when near enough...
The Giant Flare from SGR 1806-20 and its Radio Afterglow (2006)
The multi-wavelength observations of the 2004 December~27 Giant Flare (GF) from SGR 1806-20 and its long-lived radio afterglow are briefly reviewed. The GF appears to have been produced by a dramatic...
Kaneko, Y., Ramirez-Ruiz, E., Granot, J., Kouveliotou, C., Woosley, S. E., Patel, S. K., ...
We present a detailed spectral analysis of the prompt and afterglow emission of four nearby long-soft gamma-ray bursts (GRBs 980425, 030329, 031203, and 060218) that were spectroscopically found to...
Revealing the Jet Structure of GRB 030329 with High Resolution Multicolor Photometry (2006)
Gorosabel, J., Castro-Tirado, A. J., Ramirez-Ruiz, E., Granot, J., Caon, N., Cairos, L. M., ...
We present multicolor optical observations of the nearby (z=0.1685) GRB 030329 obtained with the same instrumentation over a time period of 6 hours for a total of an unprecedented 475...
Diagnosing the Outflow from the SGR 1806-20 Giant Flare with Radio Observations. (2006)
Granot, J., Ramirez-Ruiz, E., Taylor, G.B., Eichler, D., Lyubarsky, Y.E., ...
Evidence for a Canonical Gamma-Ray Burst Afterglow Light Curve in the Swift XRT Data.-- (2006)
Nousek, J.A., Kouveliotou, C., Grupe, D., Page, K.L., Granot, J., Ramirez-Ruiz, E., ...
A new y-ray burst classification scheme from GRB 060614. (2006)
Gehrels, N., Norris, J.P., Barthelmy, S., Granot, J., Kaneko, Y., Kouveliotou, C., ...
Revealing the Jet Structure of GRB 030329 with High-Resolution Multicolor Photometry (2006)
Gorosabel, J., Castro-Tirado, A.J., Ramirez-Ruiz, E., Granot, J., Caon, N., Cairós, L.M., ...
We present multicolor optical observations of the nearby (z=0.1685) gamma-ray burst GRB 030329 obtained with the same instrumentation over a time period of 6 hours, for a total of an unprecedented...
Diagnosing the Outflow from the SGR 1806-20 Giant Flare with Radio Observations (2006)
Granot, J., Ramirez-Ruiz, E., Taylor, G.B., Eichler, D., Lyubarsky, Y.E., ...
On 2004 December 27, the soft gamma repeater (SGR) 1806-20 emitted the brightest giant flare (GF) ever detected from an SGR. This burst of energy, which resulted in an (isotropic) energy release ~100...
Tracking the Big One: The Evolving Radio Afterglow of the Giant Flare from SGR 1806-20 (2006)
Gelfand, J.D., Kouveliotou, C., Gaensler, B.M., Taylor, G., Eichler, D., Lyubarsky, Y.E., ...
On 2004 December 27 SGR 1806-20 emitted the brightest Gamma-ray flare ever observed outshining the entire Milky Way for a fraction in this poster This flare also created a radio nebula which is...
The Galaxy Hosts and Large-Scale Environments of Short-Hard Gamma-Ray Bursts (2005)
Prochaska, J. X., Bloom, J. S., Foley, R. J., Perley, D. A., Ramirez-Ruiz, E., ...
The rapid succession of discovery of short--duration hard--spectrum GRBs has led to unprecedented insights into the energetics of the explosion and nature of the progenitors. Yet short of the...
GRB 050509B: Constraints on Short Gamma Ray Burst Models (2005)
Hjorth, J., Sollerman, J., Gorosabel, J., Granot, J., Klose, S., Kouveliotou, C., ...
Evidence for a Canonical GRB Afterglow Light Curve in the Swift/XRT Data (2005)
Nousek, J. A., Kouveliotou, C., Grupe, D., Page, K., Granot, J., Ramirez-Ruiz, E., ...
We present new observations of the early X-ray afterglows of the first 27 gamma-ray bursts (GRBs) detected with the Swift X-ray Telescope (XRT). The early X-ray afterglows show a canonical behavior,...
GRB 050509B: Constraints on short gamma-ray burst models (2005)
Hjorth, J., Sollerman, J., Gorosabel, J., Granot, J., Klose, S., Kouveliotou, C., ...
We have obtained deep optical images with the Very Large Telescope at ESO of the first well-localized short-duration gamma-ray burst, GRB 050509B. From V and R imaging, initiated ~2 days after the...
Bloom, J. S., Prochaska, J. X., Pooley, D., Blake, C. H., Foley, R. J., Jha, S., ...
The localization of the short-duration, hard-spectrum GRB 050509b was a watershed event. Thanks to the nearly immediate relay of the GRB position by Swift, we began imaging the GRB field 8 minutes...
Taylor, G. B., Gelfand, J. D., Gaensler, B. M., Granot, J., Kouveliotou, C., Fender, R. P., ...
The extraordinary giant flare (GF) of 2004 December 27 from the soft gamma repeater (SGR) 1806-20 was followed by a bright radio afterglow. We present an analysis of VLA observations of this radio...
A giant gamma-ray flare from the magnetar SGR 1806-20 (2005)
Barthelmy, S, Gehrels, N, Kippen, R M, Cayton, T, Kouveliotou, C, ...
Two classes of rotating neutron stars-soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars-are magnetars, whose X-ray emission is powered by a very strong magnetic field (B approximately...
Diagnosing the outflow from the SGR 1806-20 Giant Flare with Radio Observations (2005)
Granot, J., Ramirez-Ruiz, E., Taylor, G. B., Eichler, D., Lyubarsky, Y. E., ...
On 2004 Dec. 27, the soft gamma repeater (SGR) 1806-20 emitted the brightest giant flare (GF) ever detected from an SGR, with an (isotropic) energy release $\sim 100$ times greater than the only two...
Gelfand, J. D., Lyubarsky, Y. E., Eichler, D., Gaensler, B. M., Taylor, G. B., Granot, J., ...
The 2004 Dec. 27 giant Gamma-ray flare detected from the magnetar SGR 1806-20 created an expanding radio nebula which we have monitored with the Australia Telescope Compact Array and the Very Large...
Gamma-Ray Observations of a Giant Flare from The Magnetar SGR 1806-20 (2005)
Palmer, D. M., Barthelmy, S., Gehrels, N., Kippen, R. M., Cayton, T., Kouveliotou, C., ...
Magnetars comprise two classes of rotating neutron stars (Soft Gamma Repeaters (SGRs) and Anomalous X-ray Pulsars), whose X-ray emission is powered by an ultrastrong magnetic field, B ~ 10^15 G....
An expanding radio nebula produced by a giant flare from the magnetar SGR 1806-20 (2005)
Gaensler, B. M., Kouveliotou, C., Gelfand, J. D., Taylor, G. B., Eichler, D., ...
Soft gamma repeaters (SGRs) are "magnetars", a small class of slowly spinning neutron stars with extreme surface magnetic fields, ~10^15 gauss. On 2004 December 27, a giant flare was detected from...
GRB 050509B: Constraints on Short Gamma-Ray Burst Models (2005)
Hjort, J., Sollerman, J., Gorosabel, J., Granot, J., Klose, S., Kouveliotou, C., ...
Gelfand, J.D., Lyubarsky, Y.E., Eichler, D., Gaensler, B.M., Taylor, G.B., Granot, J., ...
The 2004 December 27 giant gamma-ray flare detected from the magnetar SGR 1806-20 created an expanding radio nebula that we have monitored with the Australia Telescope Compact Array and the Very...
Taylor, G.B., Gelfand, J.D., Gaensler, B.M., Granot, J., Kouveliotou, C., Fender, R.P., ...
The extraordinary giant flare (GF) of 2004 December 27 from the soft gamma repeater SGR 1806-20 was followed by a bright radio afterglow. We present an analysis of VLA observations of this radio...
An expanding radio nebula produced by a giant flare from the magnetar SGR 1806-20 (2005)
Gaensler, B.M., Kouveliotou, C., Gelfand, J.D., Taylor, G.B., Eichler, D., ...
Soft gamma-ray repeaters (SGRs) are `magnetars', a small class of slowly spinning neutron stars with extreme surface magnetic fields, B ~ 1015 gauss (refs 1 , 2 -3). On 27 December 2004, a giant...
A giant gamma-ray flare from the magnetar SGR 1806 - 20 (2005)
Palmer, D.M., Barthelmy, S., Gehrels, N., Kippen, R.M., Cayton, T., Kouveliotou, C., ...
Two classes of rotating neutron stars-soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars-are magnetars, whose X-ray emission is powered by a very strong magnetic field (B ~ 1015G). SGRs...
A giant y-ray flare from the magnetar SGR 1806-20. (2005)
Palmer, D.M., Barthelmy, S., Gehrels, N., Kippen, R.M., Cayton, T., Kouveliotou, C., ...
An expanding radio nebula produced by a giant flare from the magnetar SGR 1806-20. (2005)
Gaensler, B.M., Kouveliotou, C., Gelfand, J.D., Taylor, G.B., Eichler, D., ...
Off-Axis Afterglow Emission from Jetted Gamma-Ray Bursts (2002)
Granot, J., Panaitescu, A., Kumar, P., Woosley, S. E.
We calculate Gamma-Ray Burst afterglow light-curves from a relativistic jet of initial opening angle theta_0, as seen by observers at a wide range of viewing angles, theta_obs, from the jet axis. We...
Theory of GRB Afterglow. (2001)
“The original publication is available at www.springerlink.com”. Copyright Springer / ESO DOI: 10.1007/10853853_80
Galama, T. J., Bremer, M., Bertoldi, F., Menten, K. M., Lisenfeld, U., Shepherd, D. S., ...
The millimeter wavelength emission from GRB 991208 is the second brightest ever detected, yielding a unique data set. We present here well-sampled spectra and light curves over more than two decades...