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Searching for GRB remnants in nearby galaxies
S. G. Bhargavi, J. Rhoads, R. Perna +2
Gamma Ray Bursts (GRBs) are expected to leave behind GRB remnants, similar to how ``standard'' supernovae (SN) leave behind SN remnants. The identification of these remnants in our…
Discovery of the Faint Near-IR Afterglow of GRB 030528
A. Rau, J. Greiner, S. Klose +7
We report on the discovery of the near-IR transient of the long-duration gamma-ray burst GRB 030528 and its underlying host galaxy. The near-IR transient was first observed in JHKs…
Three Lyman-alpha Emitters at z approx 6: Early GMOS/Gemini Data from the GLARE Project
Elizabeth R. Stanway, Karl Glazebrook, Andrew J. Bunker +14
We report spectroscopic detection of three z~6 Lyman-alpha emitting galaxies, in the vicinity of the Hubble Ultra Deep Field, from the early data of the Gemini Lyman- at Reionis…
172 ks Chandra Exposure of the LALA Boötes Field: X-ray Source Catalog
J. X. Wang, S. Malhotra, J. E. Rhoads +7
We present an analysis of a deep, 172 ks Chandra observation of the Large Area Lyman Alpha Survey (LALA) Boötes field, obtained with the Advanced CCD Imaging Spectrometer (ACIS-I)…
The afterglow and the host galaxy of GRB 011211
P. Jakobsson, J. Hjorth, J. P. U. Fynbo +19
We present optical, near-infrared, and X-ray observations of the optical afterglow (OA) of the X-ray rich, long-duration gamma-ray burst GRB 011211. Hubble Space Telescope (HST) da…
Variable polarization in the optical afterglow of GRB 021004
E. Rol, R. A. M. J. Wijers, J. P. U. Fynbo +19
We present polarimetric observations of the afterglow of gamma-ray burst (GRB) 021004, obtained with the Nordic Optical Telescope (NOT) and the Very Large Telescope (VLT) between 8…
On the Ly-alpha emission from gamma-ray burst host galaxies: evidence for low metallicities
J. P. U. Fynbo, P. Jakobsson, P. Moller +11
We report on the results of a search for Ly-alpha emission from the host galaxy of the z=2.140 GRB 011211 and other galaxies in its surrounding field. We detect Ly-alpha emission f…
A very energetic supernova associated with the gamma-ray burst of 29 March 2003
Jens Hjorth, Jesper Sollerman, Palle Møller +24
Over the past five years evidence has mounted that long-duration (> 2 s) gamma-ray bursts (GRBs)--the most brilliant of all astronomical explosions--signal the collapse of massive…
Optical and near-infrared observations of the GRB020405 afterglow
N. Masetti, E. Palazzi, E. Pian +33
(Abridged) We report on observations of the optical and NIR afterglow of GRB020405. Ground-based optical observations started about 1 day after the GRB and spanned a period of ~10…
No X-ray Bright Type II Quasars Among the Lyman-alpha Emitters
S. Malhotra, J. X. Wang, J. E. Rhoads +2
The Lyman-alpha emitters found at z=4.5 and 5.7 by the Large Area Lyman Alpha (LALA) survey have high equivalent widths in the Lyman-alpha line. Such lines can be produced by narro…
The optical/near-IR spectral energy distribution of the GRB 000210 host galaxy
J. Gorosabel, L. Christensen, J. Hjorth +25
We report on UBVRIZJsHKs-band photometry of the dark GRB 000210 host galaxy. Fitting a grid of spectral templates to its Spectral Energy Distribution (SED), we derived a photometri…
Dirty Fireballs and Orphan Afterglows: A Tale of Two Transients
James E. Rhoads
Orphan afterglows are transient events that are produced by cosmological fireballs and resemble gamma ray burst (GRB) afterglows, yet are not accompanied by gamma rays. Such transi…