activity
20042026
most citedREM observations of GRB 060418 and GRB 060607A: the onset of the afterglow and the initial fireball Lorentz factor determination

260 citations · 4.6k across the 190 of their papers we have counts for

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astro-ph2008★ 92 cited

Multiwavelength analysis of the intriguing GRB 061126: the reverse shock scenario and magnetization

A. Gomboc, S. Kobayashi, C. Guidorzi +30

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. G…

astro-ph2007★ 1 cited

The afterglow onset for GRB060418 and GRB060607A

S. Covino, S. D. Vergani, D. Malesani +32

Gamma-ray burst are thought to be produced by highly relativistic outflows. Although upper and lower limits for the outflow initial Lorentz factor are available, observationa…

astro-ph2007★ 80 cited

Early Optical Polarization of a Gamma Ray Burst Afterglow

Carole G. Mundell, Iain A. Steele, Robert J. Smith +10

We report the optical polarization of a gamma ray burst (GRB) afterglow, obtained 203 seconds after the initial burst of gamma rays from GRB 060418, using a ring polarimeter on the…

astro-ph2007★ 37 cited

The prompt to late-time multiwavelength analysis of GRB 060210

P. A. Curran, A. J. van der Horst, A. P. Beardmore +19

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 avai…

astro-ph2006

A Review of Early-Time Optical Follow-ups with 2-m Robotic Telescopes

A. Gomboc, C. Guidorzi, C. G. Mundell +9

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…

astro-ph2006★ 36 cited

Extensive multiband study of the X-ray rich GRB 050408. A likely off-axis event with an intense energy injection

A de Ugarte Postigo, T. A. Fatkhullin, G. Johannesson +40

Aims. Understand the shape and implications of the multiband light curve of GRB 050408, an X-ray rich (XRR) burst. Methods. We present a multiband optical light curve, covering the…

astro-ph2006★ 260 cited

REM observations of GRB 060418 and GRB 060607A: the onset of the afterglow and the initial fireball Lorentz factor determination

E. Molinari, S. D. Vergani, D. Malesani +32

Gamma-ray burst (GRB) emission is believed to originate in highly relativistic fireballs. Currently, only lower limits were securely set to the initial fireball Lorentz factor Gamm…

astro-ph2006★ 23 cited

The circumburst environment of a FRED GRB: study of the prompt emission and X-ray/optical afterglow of GRB 051111

C. Guidorzi, A. Gomboc, S. Kobayashi +14

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…

astro-ph2006★ 5 cited

The early and late-time spectral and temporal evolution of GRB 050716

E. Rol, J. P. Osborne, K. L. Page +13

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-re…

astro-ph2006★ 97 cited

The Remarkable Afterglow of GRB 061007: Implications for Optical Flashes and GRB Fireballs

C. G. Mundell, A. Melandri, C. Guidorzi +18

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 o…

astro-ph2006★ 46 cited

Multi-wavelength afterglow observations of the high redshift GRB 050730

S. B. Pandey, A. J. Castro-Tirado, S. McBreen +22

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 comp…

astro-ph2006★ 19 cited

Anatomy of A Dark Burst - The Afterglow of GRB 060108

S. R. Oates, C. G. Mundell, S. Piranomonte +20

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 th…

astro-ph2006★ 51 cited

High Quality Early Time Light Curves of GRB 060206: Implications for Gamma Ray Burst Environments and Energetics

A. Monfardini, S. Kobayashi, C. Guidorzi +8

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…

astro-ph2006★ 23 cited

The variable X-ray light curve of GRB 050713A: the case of refreshed shocks

D. Guetta, F. Fiore, V. D'Elia +21

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 ex…

astro-ph2005★ 60 cited

The Automatic Real-Time GRB Pipeline of the 2-m Liverpool Telescope

C. Guidorzi, A. Monfardini, A. Gomboc +9

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 condu…

astro-ph2005★ 15 cited

Multiband Photometry of the Blazar PKS 0537-441: A Major Active State in December 2004 - March 2005

A. Dolcini, S. Covino, A. Treves +18

Multiband VRIJHK photometry of the Blazar PKS 0537-441 obtained with the REM telescope from December 2004 to March 2005 is presented. A major period of activity is found with more…

astro-ph2005★ 36 cited

The Early (<1 hr) Multi-Color Afterglow of GRB 050502a: Possible Evidence for a Uniform Medium with Density Clumps

C. Guidorzi, A. Monfardini, A. Gomboc +11

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…

astro-ph2005★ 2 cited

AMICA, an astro-mapper for AMS

A. Monfardini, P. Trampus, R. Battiston +1

The Alpha Magnetic Spectrograph (AMS) is a composite particle detector to be accommodated on the International Space Station (ISS) in 2008. AMS is mainly devoted to galactic, charg…

astro-ph2005

The Liverpool Telescope Automatic Pipeline for Real-time GRB Afterglow Detection

A. Gomboc, A. Monfardini, C. Guidorzi +8

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 iden…

astro-ph2005★ 1 cited

Early GRB Optical and Infrared Afterglow Observations with the 2-m Robotic Liverpool Telescope

A. Gomboc, C. G. Mundell, C. Guidorzi +12

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…

astro-ph2004

Rapid GRB Follow-up with the 2-m Robotic Liverpool Telescope

A. Gomboc, M. F. Bode, D. Carter +7

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 s…