326 citations · 642 across the 9 of their papers we have counts for
9 papers
The Vast Population of Wolf-Rayet and Red Supergiant Stars in M101: I. Motivation and First Results
Michael M. Shara, Joanne L. Bibby, David Zurek +3
M101 is an ideal target in which to test predictions of massive star birth and evolution. The large abundance gradient across M101 (a factor of 20) suggests that many more WR stars…
Searching for Wolf-Rayet Stars in M101
J. L. Bibby, P. A. Crowther, A. F. J. Moffat +3
Wolf-Rayet (WR) stars are the evolved descendants of massive O-type stars and are considered to be progenitor candidates for Type Ib/c core-collapse supernovae (SNe). Recent result…
The Wolf-Rayet population of the nearby barred spiral galaxy NGC 5068 uncovered by VLT and Gemini
J. L. Bibby, P. A. Crowther
We present a narrow-band VLT/FORS1 imaging survey of the SAB(rs)cd spiral galaxy NGC 5068, located at a distance of 5.45Mpc, from which 160 candidate Wolf-Rayet sources have been i…
Constraints on the Progenitor System of the Type Ia Supernova SN 2011fe/PTF11kly
Weidong Li, Joshua S. Bloom, Philipp Podsiadlowski +25
Type Ia supernovae (SNe) serve as a fundamental pillar of modern cosmology, owing to their large luminosity and a well-defined relationship between light-curve shape and peak brigh…
A tale of two GRB-SNe at a common redshift of z = 0.54
Z. Cano, D. Bersier, C. Guidorzi +71
We present ground-based and HST optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and 090618, both at a redshift of z = 0.54. For…
A Very Large Telescope imaging and spectroscopic survey of the Wolf-Rayet population in NGC 7793
J. L. Bibby, P. A. Crowther
We present a VLT/FORS1 imaging and spectroscopic survey of the Wolf-Rayet (WR) population in the Sculptor group spiral galaxy NGC 7793. We identify 74 emission line candidates from…
Contamination of short GRBs by giant magnetar flares: Significance of downward revision in distance to SGR 1806-20
Paul A Crowther, Joanne L Bibby, James P Furness +1
We highlight how the downward revision in the distance to the star cluster associated with SGR 1806-20 by Bibby et al. reconciles the apparent low contamination of BATSE short GRBs…
On the massive star content of the nearby dwarf irregular Wolf-Rayet galaxy IC 4662
P. A. Crowther, J. L. Bibby
Aims: We investigate the massive stellar content of the nearby dwarf irregular Wolf-Rayet galaxy IC 4662, and consider its global star forming properties in the context of other me…
A downward revision to the distance of the 1806-20 cluster and associated magnetar from Gemini near-Infrared spectroscopy
J. L. Bibby, P. A. Crowther, J. P. Furness +1
We present H- and K-band spectroscopy of OB and Wolf-Rayet (WR) members of the Milky Way cluster 1806-20 (G10.0-0.3), to obtain a revised cluster distance of relevance to the 2004…