activity
20072024
most citedLow-Resolution Spectroscopy of Gamma-ray Burst Optical Afterglows: Biases in the Swift Sample and Characterization of the Absorbers

368 citations · 1.3k across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.SR2024

A survey for variable stars with small telescopes: IX -- Evolution of Spot Properties on YSOs in IC5070

Carys Herbert, Dirk Froebrich, Siegfried Vanaverbeke +45

We present spot properties on 32 periodic young stellar objects in IC 5070. Long term, 5 yr, light curves in the , , and -bands are obtained through the HOYS (Huntin…

astro-ph.SR2024

A survey for variable young stars with small telescopes: VIII -- Properties of 1687 Gaia selected members in 21 nearby clusters

Dirk Froebrich, Aleks Scholz, Justyn Campbell-White +60

The Hunting Outbursting Young Stars (HOYS) project performs long-term, optical, multi-filter, high cadence monitoring of 25 nearby young clusters and star forming regions. Utilisin…

astro-ph.GA2018★ 20 cited

A survey for variable young stars with small telescopes: First results from HOYS-CAPS

D. Froebrich, J. Campbell-White, A. Scholz +15

Variability in Young Stellar Objects (YSOs) is one of their primary characteristics. Long-term, multi-filter, high-cadence monitoring of large YSO samples is the key to understand…

astro-ph.HE2015★ 42 cited

Late time multi wavelength observations of Swift J1644+5734: A luminous optical/IR bump and quiescent X-ray emission

A. J. Levan, N. R. Tanvir, G. C. Brown +10

We present late-time multi-wavelength observations of Swift J1644+57, suggested to be a relativistic tidal disruption flare (TDF). Our observations extend to >4 years from discover…

astro-ph.HE2013★ 134 cited

GRB 130427A: a Nearby Ordinary Monster

A. Maselli, A. Melandri, L. Nava +63

Long-duration Gamma-Ray Bursts (GRBs) are an extremely rare outcome of the collapse of massive stars, and are typically found in the distant Universe. Because of its intrinsic lumi…

astro-ph.CO2013★ 83 cited

The metallicity and dust content of a redshift 5 gamma-ray burst host galaxy

M. Sparre, O. E. Hartoog, T. Krühler +26

Observations of the afterglows of long gamma-ray bursts (GRBs) allow the study of star-forming galaxies across most of cosmic history. Here we present observations of GRB 111008A f…

astro-ph.HE2013★ 293 cited

A new population of ultra-long duration gamma-ray bursts

A. J. Levan, N. R. Tanvir, R. L. C. Starling +38

We present comprehensive multiwavelength observations of three gamma-ray bursts (GRBs) with durations of several thousand seconds. We demonstrate that these events are extragalacti…

astro-ph.CO2009★ 368 cited

Low-Resolution Spectroscopy of Gamma-ray Burst Optical Afterglows: Biases in the Swift Sample and Characterization of the Absorbers

J. P. U. Fynbo, P. Jakobsson, J. X. Prochaska +39

(Abridged). We present a sample of 77 optical afterglows (OAs) of Swift detected GRBs for which spectroscopic follow-up observations have been secured. We provide linelists and equ…

astro-ph2007★ 354 cited

The Afterglows of Swift-era Gamma-Ray Bursts. I. Comparing pre-Swift and Swift era Long/Soft (Type II) GRB Optical Afterglows

D. A. Kann, S. Klose, B. Zhang +73

We have gathered optical photometry data from the literature on a large sample of Swift-era gamma-ray burst (GRB) afterglows including GRBs up to September 2009, for a total of 76…