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Polarimetry of the transient relativistic jet of GRB 110328 / Swift J164449.3+573451
K. Wiersema, A. J. van der Horst, A. J. Levan +9
We present deep infrared (Ks band) imaging polarimetry and radio (1.4 and 4.8 GHz) polarimetry of the enigmatic transient Swift J164449.3+573451. This source appears to be a short…
The Highly Energetic Expansion of SN2010bh Associated with GRB 100316D
Filomena Bufano, Elena Pian, Jesper Sollerman +50
We present the spectroscopic and photometric evolution of the nearby (z = 0.059) spectroscopically confirmed type Ic supernova, SN 2010bh, associated with the soft, long-duration g…
Short gamma-ray bursts: evidence for an origin in globular clusters?
Ross P. Church, Andrew J. Levan, Melvyn B. Davies +1
We compare the observed spatial offsets of short gamma-ray bursts from their host galaxies with their predicted distributions, assuming that they originate in double neutron star b…
The dark GRB080207 in an extremely red host and the implications for GRBs in highly obscured environments
K. M. Svensson, N. R. Tanvir, D. A. Perley +8
[Abridged] We present comprehensive X-ray, optical, near- and mid-infrared, and sub-mm observations of GRB 080207 and its host galaxy. The afterglow was undetected in the optical a…
Pre-ALMA observations of GRBs in the mm/submm range
A. de Ugarte Postigo, A. Lundgren, S. Martín +24
GRBs generate an afterglow emission that can be detected from radio to X-rays during days, or even weeks after the initial explosion. The peak of this emission crosses the mm/submm…
GRB 070125 and the environments of spectral-line poor afterglow absorbers
A. De Cia, R. L. C. Starling, K. Wiersema +9
GRB 070125 is among the most energetic bursts detected and the most extensively observed so far. Nevertheless, unresolved issues are still open in the literature on the physics of…
A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude (Part I)
A. R. Conn, G. F. Lewis, R. A. Ibata +8
We present a new approach for identifying the Tip of the Red Giant Branch (TRGB) which, as we show, works robustly even on sparsely populated targets. Moreover, the approach is hig…
Swift J2058.4+0516: Discovery of a Possible Second Relativistic Tidal Disruption Flare?
S. Bradley Cenko, Hans A. Krimm, Assaf Horesh +18
We report the discovery by the Swift hard X-ray monitor of the transient source Swift J2058.4+0516 (Sw J2058+05). Our multi-wavelength follow-up campaign uncovered a long-lived (du…
The first observation of optical pulsations from a soft gamma repeater: SGR 0501+4516
V. S. Dhillon, T. R. Marsh, S. P. Littlefair +9
We present high-speed optical photometry of the soft gamma repeater SGR 0501+4516, obtained with ULTRACAM on two consecutive nights approximately 4 months after the source was disc…
A Photometric Redshift of z ~ 9.4 for GRB 090429B
A. Cucchiara, A. J. Levan, D. B. Fox +33
Gamma-ray bursts (GRBs) serve as powerful probes of the early Universe, with their luminous afterglows revealing the locations and physical properties of star forming galaxies at t…
Spectroscopic evidence for SN 2010ma associated with GRB 101219B
M. Sparre, J. Sollerman, J. P. U. Fynbo +19
We report on the spectroscopic detection of supernova SN 2010ma associated with the long gamma-ray burst GRB 101219B. We observed the optical counterpart of the GRB on three nights…
GRIPS - Gamma-Ray Imaging, Polarimetry and Spectroscopy
J. Greiner, K. Mannheim, F. Aharonian +65
We propose to perform a continuously scanning all-sky survey from 200 keV to 80 MeV achieving a sensitivity which is better by a factor of 40 or more compared to the previous missi…
A faint optical flash in dust-obscured GRB 080603A - implications for GRB prompt emission mechanisms
C. Guidorzi, S. Kobayashi, D. A. Perley +23
We report the detection of a faint optical flash by the 2-m Faulkes Telescope North simultaneously with the second of two prompt gamma-ray pulses in INTEGRAL gamma-ray burst (GRB)…
An extremely luminous panchromatic outburst from the nucleus of a distant galaxy
A. J. Levan, N. R. Tanvir, S. B. Cenko +58
Variable X-ray and gamma-ray emission is characteristic of the most extreme physical processes in the Universe, and studying the sources of these energetic photons has been a major…
A relativistic jetted outburst from a massive black hole fed by a tidally disrupted star
Joshua S. Bloom, Dimitrios Giannios, Brian D. Metzger +19
While gas accretion onto some massive black holes (MBHs) at the centers of galaxies actively powers luminous emission, the vast majority of MBHs are considered dormant. Occasionall…
ORIGIN: Metal Creation and Evolution from the Cosmic Dawn
J. W. den Herder, L. Piro, T. Ohashi +156
ORIGIN is a proposal for the M3 mission call of ESA aimed at the study of metal creation from the epoch of cosmic dawn. Using high-spectral resolution in the soft X-ray band, ORIGI…
XRF 100316D / SN 2010bh and the Nature of Gamma Ray Burst Supernovae
Z. Cano, D. Bersier, C. Guidorzi +21
We present ground-based and HST optical and infrared observations of XRF 100316D / SN 2010bh. It is seen that the optical light curves of SN 2010bh evolve at a faster rate than the…
PAndAS' progeny: extending the M31 dwarf galaxy cabal
Jenny C. Richardson, Mike Irwin, Alan W. McConnachie +8
We present the discovery of five new dwarf galaxies, Andromeda XXIII-XXVII, located in the outer halo of M31. These galaxies were found in the second year of data from the Pan-Andr…
Exploring the Properties of the M31 Halo Globular Cluster System
A. P. Huxor, A. M. N. Ferguson, N. R. Tanvir +6
Following on from our discovery of a significant population of M31 outer halo globular clusters (GCs), and updates to the Revised Bologna Catalogue of M31 GCs, we investigate the G…
Variable Ly alpha sheds light on the environment surrounding GRB 090426
C. C. Thöne, S. Campana, D. Lazzati +16
Long duration gamma-ray bursts are commonly associated with the deaths of massive stars. Spectroscopic studies using the afterglow as a light source provide a unique opportunity to…
Implications for the origin of short gamma-ray bursts from their observed positions around their host galaxies
Ross P. Church, Andrew J. Levan, Melvyn B. Davies +1
We present the observed offsets of short-duration gamma-ray bursts (SGRBs) from their putative host galaxies and compare them to the expected distributions of merging compact objec…
Exploring dust extinction at the edge of reionization
Tayyaba Zafar, Darach J. Watson, 1 Nial R. Tanvir +3
The brightness of gamma-ray burst (GRB) afterglows and their occurrence in young, blue galaxies make them excellent probes to study star forming regions in the distant Universe. We…