Optical flashes, reverse shocks and magnetization (2009)
Gomboc, Andreja, Kobayashi, Shiho, Mundell, Carole G., Guidorzi, Cristiano, Melandri, Andrea, Steele, Iain A., ...
Despite the pre-Swift expectation that bright optical flashes from reverse shocks would be prevalent in early-time afterglow emission, rapid response observations show this not to be the case....
A direct measurement of the dust extinction curve in an intermediate-redshift galaxy (2008)
Heng, Kevin, Lazzati, Davide, Perna, Rosalba, Garnavich, Peter, Noriega-Crespo, Alberto, Bersier, David, ...
We present a proof-of-concept study that dust extinction curves can be extracted from the infrared (IR), optical, ultraviolet (UV), and X-ray afterglow observations of GRBs without assuming known...
A Direct Measurement of the Dust Extinction Curve in an Intermediate-Redshift Galaxy (2008)
Heng, Kevin, Lazzati, Davide, Perna, Rosalba, Garnavich, Peter, Noriega-Crespo, Alberto, Bersier, David, ...
We present a proof-of-concept study that dust extinction curves can be extracted from the infrared (IR), optical, ultraviolet (UV) and X-ray afterglow observations of GRBs without assuming known...
The long-period Galactic Cepheid RS Puppis - I. A geometric distance from its light echoes (2008)
Kervella, Pierre, Mérand, Antoine, Szabados, Laszlo, Fouqué, Pascal, Bersier, David, Pompei, Emanuela, ...
Context: The bright southern Cepheid RS Pup is surrounded by a circumstellar nebula reflecting the light from the central star. The propagation of the light variations from the Cepheid inside the...
Evidence for a Supernova Associated with the X-ray Flash 020903 (2007)
Bersier, David, Fruchter, A.S., Gorosabel, Javier, Levan, A., Covino, Stefano, ...
We present ground-based and Hubble Space Telescope optical observations of the X-ray flash (XRF) 020903, covering 300 days. The afterglow showed a very rapid rise in the first day, followed by a...
Early Optical Polarization of a Gamma Ray Burst Afterglow (2007)
Mundell, Carole G., Steele, Iain A., Smith, Robert J., Kobayashi, Shiho, Melandri, Andrea, Guidorzi, Cristiano, ...
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 robotic Liverpool...
The long-period Galactic Cepheid RS Puppis - I. A geometric distance from its light echoes (2007)
Kervella, Pierre, Mérand, Antoine, Szabados, Laszlo, Fouqué, Pascal, Bersier, David, Pompei, Emanuela, ...
Context: The bright southern Cepheid RS Pup is surrounded by a circumstellar nebula reflecting the light from the central star. The propagation of the light variations from the Cepheid inside the...
The long-period Galactic Cepheid RS Puppis - I. A geometric distance from its light echoes (2007)
Kervella, Pierre, Mérand, Antoine, Szabados, Laszlo, Fouqué, Pascal, Bersier, David, Pompei, Emanuela, ...
Context: The bright southern Cepheid RS Pup is surrounded by a circumstellar nebula reflecting the light from the central star. The propagation of the light variations from the Cepheid inside the...
Philip Best, Contributors Paul Alex, David Bacon (edinburgh/portsmouth, David Bersier, Liverpool Jmu, Philip Best (edinburgh, ...
2.1 International extensions of LOFAR............................ 4
No supernovae associated with two long-duration gamma-ray bursts (2006)
Fynbo, Johan P. U., Watson, Darach, Thöne, Christina C., Sollerman, Jesper, Bloom, Joshua S., Davis, Tamara M., ...
It is now accepted that long-duration gamma-ray bursts (GRBs) are produced during the collapse of a massive star(1,2). The standard 'collapsar' model(3) predicts that a broad-lined and luminous type...
No supernovae associated with two long-duration gamma ray bursts (2006)
Fynbo, Johan P. U., Watson, Darach, Thoene, Christina C., Sollerman, Jesper, Bloom, Joshua S., Davis, Tamara M., ...
It is now accepted that long duration gamma-ray bursts (GRBs) are produced during the collapse of a massive star. The standard "collapsar" model predicts that a broad-lined and luminous Type Ic...
Levan, Andrew, Fruchter, Andrew, Rhoads, James, Mobasher, Bahram, Tanvir, Nial, Gorosabel, Javier, ...
We present near-infrared (nIR) and optical observations of the afterglow of GRB 030115. Discovered in an infrared search at Kitt Peak 5 hours after the burst trigger, this afterglow is amongst the...
No supernovae associated with two long-duration gamma-ray bursts (2006)
Fynbo, Johan P. U., Watson, Darach, Thöne, Christina C., Sollerman, Jesper, Bloom, Joshua S., Davis, Tamara M., ...
No supernovae associated with two long-duration gamma-ray bursts (2006)
Fynbo, Johan P. U., Watson, Darach, Thöne, Christina C., Sollerman, Jesper, Bloom, Joshua S., Davis, Tamara M., ...
Levan, Andrew, Patel, Sandeep, Kouveliotou, Chryssa, Fruchter, Andrew, Rhoads, James, Rol, Evert, ...
X-ray Flashes (XRFs) are, like Gamma-Ray Bursts (GRBs), thought to signal the collapse of massive stars in distant galaxies. Many models posit that the isotropic equivalent energies of XRFs are lower...
Holland, Stephen T., Bersier, David, Bloom, J. S., Garnavich, Peter G., Caldwell, Nelson, Challis, Peter, ...
We present B, V, Rc, J, H, and Ks photometry of the optical afterglow of the gamma-ray burst GRB 021211 taken at the Magellan, MMT, and WIYN observatories between 0.7 and 50 days after the burst. We...
The Optical Afterglow of GRB 011211 (2002)
Holland, Stephen T., Soszynski, I., Gladders, Michael D., Barrientos, L. F., Berlind, P., Bersier, David, ...
We present early-time optical photometry and spectroscopy of the optical afterglow of the gamma-ray burst GRB 011211. The spectrum of the optical afterglow contains several narrow metal lines which...