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Optical and near-IR...
Optical and near-IR observations of the faint and fast 2008ha-like supernova 2010ae
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Stritzinger, M. D. (author)
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Hsiao, E. (author)
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Valenti, S. (author)
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- Taddia, Francesco (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Rivera-Thorsen, Thöger J. (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Leloudas, Georgios (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),University of Copenhagen, Denmark
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Maeda, K. (author)
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Pastorello, A. (author)
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Phillips, M. M. (author)
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Pignata, G. (author)
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Baron, E. (author)
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Burns, C. R. (author)
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Contreras, C. (author)
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Folatelli, G. (author)
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Hamuy, M. (author)
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Hoeflich, P. (author)
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Morrell, N. (author)
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Prieto, J. L. (author)
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Benetti, S. (author)
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Campillay, A. (author)
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Haislip, J. B. (author)
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LaClutze, A. P. (author)
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Moore, J. P. (author)
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Reichart, D. E. (author)
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(creator_code:org_t)
- 2014-01-27
- 2014
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 561, s. A146-
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Abstract
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- A comprehensive set of optical and near-infrared (NIR) photometry and spectroscopy is presented for the faint and fast 2008ha-like supernova (SN) 2010ae. Contingent on the adopted value of host extinction, SN 2010ae reached a peak brightness of -13.8 > M-V > -15.3 mag, while modeling of the UVOIR light curve suggests it produced 0.003-0.007 M-circle dot of Ni-56, ejected 0.30-0.60 M-circle dot of material, and had an explosion energy of 0.04-0.30 x 10(51) erg. The values of these explosion parameters are similar to the peculiar SN 2008ha -for which we also present previously unpublished early phase optical and NIR light curves - and places these two transients at the faint end of the 2002cx-like SN population. Detailed inspection of the post-maximum NIR spectroscopic sequence indicates the presence of a multitude of spectral features, which are identified through SYNAPPS modeling to be mainly attributed to Co II. Comparison with a collection of published and unpublished NIR spectra of other 2002cx-like SNe, reveals that a Co II footprint is ubiquitous to this subclass of transients, providing a link to Type Ia SNe. A visual-wavelength spectrum of SN 2010ae obtained at +252 days past maximum shows a striking resemblance to a similar epoch spectrum of SN 2002cx. However, subtle differences in the strength and ratio of calcium emission features, as well as diversity among similar epoch spectra of other 2002cx-like SNe indicates a range of physical conditions of the ejecta, highlighting the heterogeneous nature of this peculiar class of transients.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- supernovae: general
- supernovae: individual: SN 2008ha
- supernovae: individual: SN 2010ae
- Astronomy
- astronomi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Stritzinger, M. ...
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Hsiao, E.
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Valenti, S.
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Taddia, Francesc ...
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Rivera-Thorsen, ...
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Leloudas, Georgi ...
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show more...
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Maeda, K.
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Pastorello, A.
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Phillips, M. M.
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Pignata, G.
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Baron, E.
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Burns, C. R.
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Contreras, C.
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Folatelli, G.
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Hamuy, M.
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Hoeflich, P.
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Morrell, N.
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Prieto, J. L.
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Benetti, S.
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Campillay, A.
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Haislip, J. B.
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LaClutze, A. P.
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Moore, J. P.
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Reichart, D. E.
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show less...
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Stockholm University