184 citations · 2k across the 30 of their papers we have counts for
31 papers
The GROND gamma-ray burst sample. I. Overview and statistics
J. Greiner, T. Krühler, J. Bolmer +17
A dedicated gamma-ray burst (GRB) afterglow observing program was performed between 2007 and 2016 with GROND, a seven-channel optical and near-infrared imager at the 2.2m telescope…
Dust reddening and extinction curves towards gamma-ray bursts at z > 4
Jan Bolmer, Jochen Greiner, Thomas Krühler +4
Dust is known to be produced in the envelopes of AGB stars, the expanded shells of supernova (SN) remnants, and in situ grain growth in the ISM, although the corresponding efficien…
The shape of oxygen abundance profiles explored with MUSE: evidence for widespread deviations from single gradients
L. Sánchez-Menguiano, S. F. Sánchez, I. Pérez +6
We characterise the oxygen abundance radial distribution of a sample of 102 spiral galaxies observed with VLT/MUSE using the O3N2 calibrator. The high spatial resolution of the dat…
Steep extinction towards GRB 140506A reconciled from host galaxy observations: Evidence that steep reddening laws are local
K. E. Heintz, J. P. U. Fynbo, P. Jakobsson +14
We present the spectroscopic and photometric late-time follow-up of the host galaxy of the long-duration Swift gamma-ray burst GRB 140506A at z = 0.889. The optical and near-infrar…
Hot gas around SN 1998bw: Inferring the progenitor from its environment
Thomas Krühler, Hanindyo Kuncarayakti, Patricia Schady +3
Spatially-resolved spectroscopy of the environments of explosive transients carries detailed information about the physical properties of the stellar population that gave rise to t…
The chemical enrichment of long-GRB nurseries up to z=2
S. D. Vergani, J. Palmerio, R. Salvaterra +12
We investigate the existence of a metallicity threshold for the production of long gamma-ray bursts (LGRBs). We used the host galaxies of the Swift/BAT6 sample of LGRBs. We conside…