activity
20132025
most citedA very luminous magnetar-powered supernova associated with an ultra-long gamma-ray burst

303 citations · 964 across the 19 of their papers we have counts for

collaborators

19 papers

astro-ph.HE2025

The GROND GRB sample: II. Fireball parameters for four GRB afterglows

Karla Varela, Jochen Greiner, Patricia Schady +1

Afterglows of GRBs are, in general, well described by the fireball model. Yet, deducing the full set of model parameters from observations without prior assumptions has been possib…

astro-ph.HE2024

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…

astro-ph.HE2018★ 40 cited

Four GRB-Supernovae at Redshifts between 0.4 and 0.8

S. Klose, S. Schmidl, D. A. Kann +16

Twenty years ago, GRB 980425/SN 1998bw revealed that long Gamma-Ray Bursts (GRBs) are physically associated with broad-lined type Ic supernovae. Since then more than 1000 long GRBs…

astro-ph.HE2018★ 14 cited

GRB 151027B - large-amplitude late-time radio variability

J. Greiner, J. Bolmer, M. Wieringa +20

Deriving physical parameters from gamma-ray burst afterglow observations remains a challenge, even now, 20 years after the discovery of afterglows. The main reason for the lack of…

astro-ph.HE2017★ 37 cited

A long optical plateau in the afterglow of the Extended Emission short GRB 150424A: Evidence for energy injection by a magnetar?

F. Knust, J. Greiner, H. J. van Eerten +14

Short-duration GRBs with extended emission form a subclass of short GRBs, comprising about 15% of the short-duration sample. Afterglow detections of short GRBs are also rare (about…

astro-ph.HE2017★ 45 cited

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…