GRB 970508 is the second gamma-ray burst (GRB) for which an optical afterglow has been detected. It is the first GRB for which a distance scale has been determined: absorption and emission features in spectra of the optical afterglow place GRB 970508 at a redshift of z ≥ 0.835. The lack of a Lyα forest in these spectra further constrains this redshift to be less than z ∼ 2.3. I show that the spectrum of the optical afterglow of GRB 970508, once corrected for Galactic absorption, is inconsistent with the relativistic blast-wave model unless a second, redshifted source of extinction is introduced. This second source of extinction may be the yet unobserved host galaxy. I determine its redshift to be z = 1.09-0.41+0.14, which is consistent with...
GRB 970228 is the first gamma-ray burst (GRB) for which prolonged postburst transient X-ray, optical...
The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any...
Since January 1997, we have monitored 15 GRB fields, detecting 6 optical/IR afterglows. We have rev...
GRB 970508 is the second gamma-ray burst (GRB) for which an optical afterglow has been detected. It ...
GRB 970508 is the second gamma-ray burst (GRB) for which an optical afterglow has been detected. It ...
We report on the results of R-band observations of the error box of the g-ray burst of 1997 August 2...
The discovery of Gamma-Ray Burst (GRB) afterglows revealed a new class of variable sources at optica...
The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any...
There is increasingly strong evidence that gamma-ray bursts (GRBs) are associated with star-forming ...
Copyright © Institute of Physics and IOP Publishing Limited 2009We report on follow-up observations ...
We present time-resolved optical spectroscopy of the afterglows of the gamma-ray bursts GRB 990510 a...
Since January 1997, we have monitored 15 GRB fields, detecting 6 optical/IR afterglows. For GRB 9705...
We applied cosmological and absorption corrections to the X-ray and optical afterglow fluxes of a sa...
GRB 051022 was undetected to deep limits in early optical observations, but precise astrometry from ...
We report on the results of R-band observations of the error box of the gamma-ray burst of 1997 Augu...
GRB 970228 is the first gamma-ray burst (GRB) for which prolonged postburst transient X-ray, optical...
The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any...
Since January 1997, we have monitored 15 GRB fields, detecting 6 optical/IR afterglows. We have rev...
GRB 970508 is the second gamma-ray burst (GRB) for which an optical afterglow has been detected. It ...
GRB 970508 is the second gamma-ray burst (GRB) for which an optical afterglow has been detected. It ...
We report on the results of R-band observations of the error box of the g-ray burst of 1997 August 2...
The discovery of Gamma-Ray Burst (GRB) afterglows revealed a new class of variable sources at optica...
The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any...
There is increasingly strong evidence that gamma-ray bursts (GRBs) are associated with star-forming ...
Copyright © Institute of Physics and IOP Publishing Limited 2009We report on follow-up observations ...
We present time-resolved optical spectroscopy of the afterglows of the gamma-ray bursts GRB 990510 a...
Since January 1997, we have monitored 15 GRB fields, detecting 6 optical/IR afterglows. For GRB 9705...
We applied cosmological and absorption corrections to the X-ray and optical afterglow fluxes of a sa...
GRB 051022 was undetected to deep limits in early optical observations, but precise astrometry from ...
We report on the results of R-band observations of the error box of the gamma-ray burst of 1997 Augu...
GRB 970228 is the first gamma-ray burst (GRB) for which prolonged postburst transient X-ray, optical...
The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any...
Since January 1997, we have monitored 15 GRB fields, detecting 6 optical/IR afterglows. We have rev...