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11 papers · 2 filters
Late-Time VLA Reobservations Rule Out ULIRG-Like Host Galaxies For Most Pre-Swift Long-Duration Gamma-Ray Bursts
Daniel A. Perley, Jens Hjorth, Nial R. Tanvir +1
We present new Jansky Very Large Array observations of five pre-Swift gamma-ray bursts for which an ultraluminous (SFR > 100 M_sun/yr) dusty host galaxy had previously been inferre…
The second closest gamma-ray burst: sub-luminous GRB 111005A with no supernova in a super-solar metallicity environment
Michał J. Michałowski, Dong Xu, Jamie Stevens +17
We report the detection of the radio afterglow of a long gamma-ray burst (GRB) 111005A at 5-345 GHz, including the very long baseline interferometry observations with the positiona…
The Afterglow and Early-Type Host Galaxy of the Short GRB 150101B at z=0.1343
Wen-fai Fong, Raffaella Margutti, Ryan Chornock +14
We present the discovery of the X-ray and optical afterglows of the short-duration GRB 150101B, pinpointing the event to an early-type host galaxy at z=0.1343 +/- 0.0030. This make…
Liverpool Telescope follow-up of candidate electromagnetic counterparts during the first run of Advanced LIGO
C. M. Copperwheat, I. A. Steele, A. S. Piascik +17
The first direct detection of gravitational waves was made in late 2015 with the Advanced LIGO detectors. By prior arrangement, a worldwide collaboration of electromagnetic follow-…
GRBs as Probes of the IGM
A. Cucchiara, T. Totani, N. R. Tanvir
Gamma-ray Bursts (GRBs) are the most powerful explosions known, capable of outshining the rest of gamma-ray sky during their short-lived prompt emission. Their cosmological nature…
Perspectives on Gamma-Ray Burst Physics and Cosmology with Next Generation Facilities
Weimin Yuan, Lorenzo Amati, John K. Cannizzo +10
High-redshift Gamma-Ray Bursts (GRBs) beyond redshift are potentially powerful tools to probe the distant early Universe. Their detections in large numbers and at truly hig…
An achromatic break in the afterglow of the short GRB 140903A: evidence for a narrow jet
E. Troja, T. Sakamoto, S. B. Cenko +17
We report the results of our observing campaign on GRB140903A, a nearby (z=0.351) short duration (T90~0.3 s) gamma-ray burst discovered by Swift. We monitored the X-ray afterglow w…
Swift follow-up of gravitational wave triggers: results from the first aLIGO run and optimisation for the future
P. A. Evans, J. A. Kennea, D. M. Palmer +18
During its first observing run, in late 2015, the advanced LIGO facility announced 3 gravitational wave (GW) triggers to electromagnetic follow-up partners. Two of these have since…
Hubble Space Telescope observations of the host galaxies and environments of calcium-rich supernovae
J. D. Lyman, A. J. Levan, P. A. James +4
Calcium-rich supernovae represent a significant challenge for our understanding of the fates of stellar systems. They are less luminous than other supernova (SN) types and they evo…
Long-Duration Gamma-Ray Burst Host Galaxies in Emission and Absorption
Daniel A. Perley, Yuu Niino, Nial R. Tanvir +2
The galaxy population hosting long-duration GRBs provides a means to constrain the progenitor and an opportunity to use these violent explosions to characterize the nature of the h…
An Ultraviolet Spectrum of the Tidal Disruption Flare ASASSN-14li
S. Bradley Cenko, Antonino Cucchiara, Nathaniel Roth +18
We present a Hubble Space Telescope STIS spectrum of ASASSN-14li, the first rest-frame UV spectrum of a tidal disruption flare (TDF). The underlying continuum is well fit by a blac…