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Origins of Type Ibn SNe 2006jc/2015G in interacting binaries and implications for pre-SN eruptions
Ning-Chen Sun, Jusytn R. Maund, Ryosuke Hirai +2
Type Ibn supernovae (SNe Ibn) are intriguing stellar explosions whose spectra exhibit narrow helium lines with little hydrogen. They trace the presence of circumstellar material (C…
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…
SN 2012ec: mass of the progenitor from PESSTO follow-up of the photospheric phase
C. Barbarino, M. Dall'Ora, M. T. Botticella +32
We present the results of a photometric and spectroscopic monitoring campaign of SN 2012ec, which exploded in the spiral galaxy NGC 1084, during the photospheric phase. The photome…
On the progenitor of the Type Ic SN 2013dk in the Antennae Galaxies
Nancy Elias-Rosa, Andrea Pastorello, Justyn R. Maund +7
We report the results of our search for the progenitor candidate of SN 2013dk, a Type Ic supernova (SN) that exploded in the Antennae Galaxy system. We compare pre-explosion Hubble…
Optical and near-infrared observations of SN 2011dh - The first 100 days
M. Ergon, J. Sollerman, M. Fraser +26
We present optical and near-infrared (NIR) photometry and spectroscopy of the Type IIb supernova (SN) 2011dh for the first 100 days. We complement our extensive dataset with SWIFT…
Supernova 2012ec: Identification of the progenitor and early monitoring with PESSTO
J. R. Maund, M. Fraser, S. J. Smartt +13
We present the identification of the progenitor of the Type IIP SN 2012ec in archival pre-explosion HST WFPC2 and ACS/WFC F814W images. The properties of the progenitor are further…