226 citations · 1.1k across the 16 of their papers we have counts for
16 papers
The Optical/NIR afterglow of GRB 111209A: Complex yet not Unprecedented
D. A. Kann, P. Schady, F. Olivares E. +24
Afterglows of Gamma-Ray Bursts (GRBs) are simple in the most basic model, but can show many complex features. The ultra-long duration GRB 111209A, one of the longest GRBs ever dete…
Prompt emission of GRB 121217A from gamma-rays to the NIR
J. Elliott, H. -F. Yu, S. Schmidl +20
The mechanism that causes the prompt-emission episode of gamma-ray bursts (GRBs) is still widely debated despite there being thousands of prompt detections. The favoured internal s…
Afterglow rebrightenings as a signature of a long-lasting central engine activity? The emblematic case of GRB 100814A
M. Nardini, J. Elliott, R. Filgas +12
In the past few years the number of well-sampled optical to NIR light curves of long Gamma-Ray Bursts (GRBs) has greatly increased particularly due to simultaneous multi-band image…
The unusual afterglow of the Gamma-Ray Burst 100621A
J. Greiner, T. Krühler, M. Nardini +27
In order to constrain the broad-band spectral energy distribution of the afterglow of GRB 100621A, dedicated observations were performed in the optical/near-infrared with the 7-cha…
Clustering of galaxies around GRB sight-lines
Vladimir Sudilovsky, Jochen Greiner, Arne Rau +11
There is evidence of an overdensity of strong intervening MgII absorption line systems distributed along the lines of sight towards GRB afterglows relative to quasar sight-lines. I…
GRB 091029: At the limit of the fireball scenario
R. Filgas, J. Greiner, P. Schady +20
Using high-quality, broad-band afterglow data for GRB 091029, we test the validity of the forward-shock model for gamma-ray burst afterglows. We used multi-wavelength (NIR to X-ray…
The late-time afterglow of the extremely energetic short burst GRB 090510 revisited
A. Nicuesa Guelbenzu, S. Klose, T. Kruehler +16
The discovery of the short GRB 090510 has raised considerable attention mainly because it had a bright optical afterglow and it is among the most energetic events detected so far w…
The SEDs and Host Galaxies of the dustiest GRB afterglows
T. Krühler, J. Greiner, P. Schady +18
(Abridged) Until recently the information inferred from gamma-ray burst follow-up observations was mostly limited to optically bright afterglows, biasing all demographic studies ag…
GRB 090426: Discovery of a jet break in a short burst afterglow
A. Nicuesa Guelbenzu, S. Klose, A. Rossi +14
Context: The link between the duration of GRBs and the nature of their progenitors remains disputed. Short bursts (with durations of less than ~2 s) are less frequently observed, t…
On the nature of the extremely fast optical rebrightening of the afterglow of GRB 081029
M. Nardini, J. Greiner, T. Kruehler +14
Context. After the launch of the Swift satellite, the Gamma-Ray Burst (GRB) optical light-curve smoothness paradigm has been questioned thanks to the faster and better sampled opti…
Discoveries enabled by Multi-wavelength Afterglow Observations of Gamma-Ray Bursts
J. Greiner
A review is given on the various aspects of gamma-ray burst afterglow observations, and the inferences derived from the data. After a short history of optical transient search and…
The circumburst density profile around GRB progenitors: a statistical study
S. Schulze, S. Klose, G. Björnsson +6
According to our present understanding, long GRBs originate from the collapse of massive stars while short bursts are due to the coalescence of compact stellar objects. Since the a…
Photometric redshifts for GRB afterglows from GROND and Swift/UVOT
T. Krühler, P. Schady, J. Greiner +18
We present a framework to obtain photometric redshifts (photo-zs) for gamma-ray burst afterglows. Using multi-band photometry from GROND and Swift/UVOT, photo-zs are derived for fi…
The Swift/Fermi GRB 080928 from 1 eV to 150 keV
A. Rossi, S. Schulze, S. Klose +28
We present the results of a comprehensive study of the gamma-ray burst 080928 and of its afterglow. GRB 080928 was a long burst detected by Swift/BAT and Fermi/GBM. It is one of th…
Optical and near-infrared follow-up observations of four Fermi/LAT GRBs : Redshifts, afterglows, energetics and host galaxies
S. McBreen, T. Krühler, A. Rau +13
Fermi can measure the spectral properties of gamma-ray bursts over a very large energy range and is opening a new window on the prompt emission of these energetic events. Localizat…
The 2175 A dust feature in a Gamma Ray Burst afterglow at redshift 2.45
T. Krühler, A. Küpcü Yoldaş, J. Greiner +6
We present optical and near-infrared photometry of the afterglow of the long Gamma-Ray Burst GRB 070802 at redshift 2.45 obtained with the ESO/MPI 2.2 m telescope equipped with the…