NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-20 T09:22:23 PDT
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For refcode 2016MNRAS.456..323K:
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NED Abstract

Copyright by Royal Astronomical Society. 2016MNRAS.456..323K Supernova 2013fc in a circumnuclear ring of a luminous infrared galaxy: the big brother of SN 1998S Kangas, T.; Mattila, S.; Kankare, E.; Lundqvist, P.; Vaisanen, P.; Childress, M.; Pignata, G.; McCully, C.; Valenti, S.; Vinko, J.; Pastorello, A.; Elias-Rosa, N.; Fraser, M.; Gal-Yam, A.; Kotak, R.; Kotilainen, J. K.; Smartt, S. J.; Galbany, L.; Harmanen, J.; Howell, D. A.; Inserra, C.; Marion, G. H.; Quimby, R. M.; Silverman, J. M.; Szalai, T.; Wheeler, J. C.; Ashall, C.; Benetti, S.; Romero-Canizales, C.; Smith, K. W.; Sullivan, M.; Takats, K.; Young, D. R. Abstract. We present photometric and spectroscopic observations of SN 2013fc, a bright type II supernova (SN) in a circumnuclear star-forming ring in the luminous infrared galaxy ESO 154-G010, observed as part of the Public ESO Spectroscopic Survey of Transient Objects. SN 2013fc is both photometrically and spectroscopically similar to the well-studied type IIn SN 1998S and to the bright type II-L SN 1979C. It exhibits an initial linear decline, followed by a short plateau phase and a tail phase with a decline too fast for ^56^Co decay with full gamma-ray trapping. Initially, the spectrum was blue and featureless. Later on, a strong broad (~8000 km s^-1^) H {alpha} emission profile became prominent. We apply a STARLIGHT stellar population model fit to the SN location (observed when the SN had faded) to estimate a high extinction of A_V_ = 2.9 +/- 0.2 mag and an age of 10_{-2}_^{+3} Myr for the underlying cluster. We compare the SN to SNe 1998S and 1979C and discuss its possible progenitor star considering the similarities to these events. With a peak brightness of B = -20.46 +/- 0.21 mag, SN 2013fc is 0.9 mag brighter than SN 1998S and of comparable brightness to SN 1979C. We suggest that SN 2013fc was consistent with a massive red supergiant (RSG) progenitor. Recent mass loss probably due to a strong RSG wind created the circumstellar matter illuminated through its interaction with the SN ejecta. We also observe a near-infrared excess, possibly due to newly condensed dust. Key words: supernovae: general, supernovae: individual: 2013fc, galaxies: starburst
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