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PESSTO : survey description and products from the first data release by the Public ESO Spectroscopic Survey of Transient Objects
S. J. Smartt, S. Valenti, M. Fraser +99
The Public European Southern Observatory Spectroscopic Survey of Transient Objects (PESSTO) began as a public spectroscopic survey in April 2012. We describe the data reduction str…
The host galaxy and late-time evolution of the Super-Luminous Supernova PTF12dam
T. -W. Chen, S. J. Smartt, A. Jerkstrand +14
Super-luminous supernovae of type Ic have a tendency to occur in faint host galaxies which are likely to have low mass and low metallicity. PTF12dam is one of the closest and best…
SN 2005at - A neglected type Ic supernova at 10 Mpc
E. Kankare, M. Fraser, S. Ryder +7
We present a photometric and spectroscopic study of a reddened type Ic supernova (SN) 2005at. We report our results based on the available data of SN 2005at, including late-time ob…
Interacting supernovae from photoionization-confined shells around red supergiant stars
Jonathan Mackey, Shazrene Mohamed, Vasilii V. Gvaramadze +5
Betelgeuse, a nearby red supergiant, is a runaway star with a powerful stellar wind that drives a bow shock into its surroundings. This picture has been challenged by the discovery…
The Type IIb SN 2011dh - Two years of observations and modelling of the lightcurves
M. Ergon, A. Jerkstrand, J. Sollerman +14
We present optical and near-infrared (NIR) photometry and spectroscopy as well as modelling of the lightcurves of the Type IIb supernova (SN) 2011dh. Our extensive dataset spans tw…
Super-luminous supernovae from PESSTO
M. Nicholl, S. J. Smartt, A. Jerkstrand +29
We present optical spectra and light curves for three hydrogen-poor super-luminous supernovae followed by the Public ESO Spectroscopic Survey of Transient Objects (PESSTO). Time se…