5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR339 papers
- European Southern ObservatoryCL298 papers
- Center for Astrophysics Harvard & SmithsonianUS294 papers
- University of CambridgeGB274 papers
- Osservatorio Astronomico di PadovaIT271 papers
- University of WarwickGB256 papers
- Stockholm UniversitySE237 papers
- Max Planck Institute for AstrophysicsDE213 papers
- Las Cumbres Observatory Global Telescope NetworkUS211 papers
- AlbaNovaSE210 papers
- Space Telescope Science InstituteUS208 papers
- University of St AndrewsGB193 papers
56 papers · 2 filters
Optical observations of 23 distant Jupiter Family Comets, including 36P/Whipple at multiple phase angles
Colin Snodgrass, Stephen C. Lowry, Alan Fitzsimmons
We present photometry on 23 Jupiter Family Comets (JFCs) observed at large heliocentric distance, primarily using the 2.5m Isaac Newton Telescope (INT). Snap-shot images were taken…
The Outermost Ejecta of Type Ia Supernovae
Masaomi Tanaka, Paolo A. Mazzali, Stefano Benetti +6
The properties of the highest velocity ejecta of normal Type Ia supernovae (SNe Ia) are studied via models of very early optical spectra of 6 SNe. At epochs earlier than 1 week bef…
The carbon-rich type Ic SN 2007gr: the photospheric phase
S. Valenti, N. Elias-Rosa, S. Taubenberger +20
The first two months of spectroscopic and photometric monitoring of the nearby type Ic SN 2007gr are presented. The very early discovery (less than 5 days after the explosion) and…
The 2003 Nov 14 occultation by Titan of TYC 1343-1865-1. II. Analysis of light curves
A. Zalucha, A. Fitzsimmons, J. L. Elliot +6
We observed a stellar occultation by Titan on 2003 November 14 from La Palma Observatory using ULTRACAM with three Sloan filters: u', g', and i' (358, 487, and 758 nm, respectively…
The underluminous Type Ia Supernova 2005bl and the class of objects similar to SN 1991bg
S. Taubenberger, S. Hachinger, G. Pignata +24
Optical observations of the Type Ia supernova (SN Ia) 2005bl in NGC 4070, obtained from -6 to +66 d with respect to the B-band maximum, are presented. The photometric evolution is…
The effect of massive binaries on stellar populations and supernova progenitors
John J. Eldridge, Robert G. Izzard, Christopher A. Tout
We compare our latest single and binary stellar model results from the Cambridge STARS code to several sets of observations. We examine four stellar population ratios, the number o…
Mass loss and supernova progenitors
John Eldridge
We first discuss the mass range of type IIP SN progenitors and how the upper and lower limits impose interesting constraints on stellar evolution. Then we discuss the possible impl…
SuperWASP-N Extra-solar Planet Candidates from Fields 06hr < RA < 16hr
S. R. Kane, W. I. Clarkson, R. G. West +21
The Wide Angle Search for Planets (WASP) survey currently operates two installations, designated SuperWASP-N and SuperWASP-S, located in the northern and southern hemispheres respe…
M-Dwarfs at Large Heliocentric Distances
E. R. Stanway, M. N. Bremer, M. D. Lehnert +1
We present an analysis of the faint M star population seen as foreground contaminants in deep extragalactic surveys. We use space-based data to separate such stars from high redshi…
The VLT-FLAMES survey of massive stars: atmospheric parameters and rotational velocity distributions for B-type stars in the Magellanic Clouds
I. Hunter, D. J. Lennon, P. L. Dufton +5
We provide atmospheric parameters and rotational velocities of a large sample (~400) of O- and early B-type stars, analysed in a homogeneous and consistent manner, for use in const…
The VLT-FLAMES survey of massive stars: rotation and nitrogen enrichment as the key to understanding massive star evolution
I. Hunter, I. Brott, D. J. Lennon +7
Rotation has become an important element in evolutionary models of massive stars, specifically via the prediction of rotational mixing. Here, we study a sample of stars, including…
WASP-3b: a strongly-irradiated transiting gas-giant planet
D. Pollacco, I. Skillen, A. Collier Cameron +43
We report the discovery of WASP-3b, the third transiting exoplanet to be discovered by the WASP and SOPHIE collaboration. WASP-3b transits its host star USNO-B1.0 1256-0285133 ever…
The Broad-lined Type Ic SN 2003jd
S. Valenti, S. Benetti, E. Cappellaro +27
The results of a world-wide coordinated observational campaign on the broad-lined Type Ic SN 2003jd are presented. In total, 74 photometric data points and 26 spectra were collecte…
SN 2002cv: A Heavily Obscured Type Ia Supernova
N. Elias-Rosa, S. Benetti, M. Turatto +15
We present VRIJHK photometry, and optical and near-infrared spectroscopy, of the heavily extinguished Type Ia supernova (SN) 2002cv, located in NGC 3190, which is also the parent g…
Supernova rates from the Southern inTermediate Redshift ESO Supernova Search (STRESS)
M. T. Botticella, M. Riello, E. Cappellaro +11
To measure the supernova (SN) rates at intermediate redshift we performed the Southern inTermediate Redshift ESO Supernova Search (STRESS). Unlike most of the current high redshift…
A very faint core-collapse supernova in M85
A. Pastorello, M. Della Valle, S. J. Smartt +8
An anomalous transient in the early Hubble-type (S0) galaxy Messier 85 (M85) in the Virgo cluster was discovered by Kulkarni et al. (2007) on 7 January 2006 that had very low lumin…
Radio Detection of Supernova 2004ip in the Circumnuclear Region of the Luminous Infrared Galaxy IRAS 18293-3413
M. A. Pérez-Torres, S. Mattila, A. Alberdi +6
We report a radio detection of supernova SN 2004ip in the circumnuclear region of the luminous infrared galaxy IRAS 18293-3413, using Very Large Array (VLA) observations at 8.4 GHz…
Iron abundances from optical Fe III absorption lines in B-type stellar spectra
H. M. A. Thompson, F. P. Keenan, P. L. Dufton +3
The role of optical Fe III absorption lines in B-type stars as iron abundance diagnostics is considered. To date, ultraviolet Fe lines have been widely used in B-type stars, althou…
Ejecta and progenitor of the low-luminosity Type IIP supernova 2003Z
V. P. Utrobin, N. N. Chugai, A. Pastorello
The origin of low-luminosity Type IIP supernovae is unclear: they have been proposed to originate either from massive (about 25 Msun) or low-mass (about 9 Msun) stars. We wish to d…
VLT / Infrared Integral Field Spectrometer Observations of Molecular Hydrogen Lines in the Knots in the Planetary Nebula NGC 7293 (the Helix Nebula)
M. Matsuura, A. K. Speck, M. D. Smith +6
Knots are commonly found in nearby planetary nebulae (PNe) and star forming regions. Within PNe, knots are often found to be associated with the brightest parts of the nebulae and…
Twisting Flux Tubes as a cause of Micro-Flaring Activity
D. B. Jess, R. T. J. McAteer, M. Mathioudakis +3
High-cadence optical observations of an H-alpha blue-wing bright point near solar AR NOAA 10794 are presented. The data were obtained with the Dunn Solar Telescope at the National…
How Efficient is Rotational Mixing in Massive Stars ?
I. Brott, I. Hunter, P. Anders +1
The VLT-Flames Survey for Massive Stars (Evans05,Evans06) provides recise measurements of rotational velocities and nitrogen surface abundances of massive stars in the Magellanic C…
The birth place of the type Ic Supernova 2007gr
R. Mark Crockett, Justyn R. Maund, Stephen J. Smartt +8
We report our attempts to locate the progenitor of the peculiar type Ic SN 2007gr in HST pre-explosion images of the host galaxy, NGC 1058. Aligning adaptive optics Altair/NIRI ima…
Galactic Edge Clouds I: Molecular Line Observations and Chemical Modelling of Edge Cloud 2
P. M. E. Ruffle, T. J. Millar, H. Roberts +5
Edge Cloud 2 (EC2) is a molecular cloud, about 35 pc in size, with one of the largest galactocentric distances known to exist in the Milky Way. We present observations of a peak CO…