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THE YOUNG AND BRIGH...
THE YOUNG AND BRIGHT TYPE IA SUPERNOVA ASASSN-141p : DISCOVERY, EARLY-TIME OBSERVATIONS, FIRST-LIGHT TIME, DISTANCE TO NGC 4666, AND PROGENITOR CONSTRAINTS
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Shappee, B. J. (author)
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Piro, A. L. (author)
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Holoien, T. W. -S. (author)
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Prieto, J. L. (author)
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Contreras, C. (author)
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Itagaki, K. (author)
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Burns, C. R. (author)
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Kochanek, C. S. (author)
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Stanek, K. Z. (author)
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Alper, E. (author)
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Basu, U. (author)
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Beacom, J. F. (author)
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Bersier, D. (author)
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Brimacombe, J. (author)
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Conseil, E. (author)
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Danilet, A. B. (author)
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Dong, Subo (author)
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Falco, E. (author)
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Grupe, D. (author)
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Hsiao, E. Y. (author)
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Kiyota, S. (author)
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Morrell, N. (author)
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Nicolas, J. (author)
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Phillips, M. M. (author)
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Pojmanski, G. (author)
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Simonian, G. (author)
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Stritzinger, M. (author)
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Szczygiel, D. M. (author)
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- Taddia, Francesco (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Thompson, T. A. (author)
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Thorstensen, J. (author)
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Wagner, M. R. (author)
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Wozniak, P. R. (author)
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(creator_code:org_t)
- 2016-07-27
- 2016
- English.
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In: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 826:2
- Related links:
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https://arxiv.org/pd...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Subject headings
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- On 2014 December 9.61, the All-sky Automated Survey for SuperNovae (ASAS-SN or Assassin) discovered ASASSN-141p just similar to 2 days after first light using a global array of 14 cm diameter telescopes. ASASSN-141p went on to become a bright supernova (V = 11.94 mag), second only to SN 2014J for the year. We present prediscovery photometry (with a detection less than a day after first light) and ultraviolet through near-infrared photometric and spectroscopic data covering the rise and fall of ASASSN-141p for more than 100 days. We find that ASASSN-141p had a broad light curve (Delta m(15) (B) = 0.80 +/- 0.05), a B-band maximum at 2457015.82 +/- 0.03, a rise time of 16.941(-0.10)(+0.11) days, and moderate host-galaxy extinction (E (B - V)host = 0.33 +/- 0.06). Using ASASSN-141p, we derive a distance modulus for NGC 4666 of mu = 30.8 +/- 0.2, corresponding to a distance of 14.7 +/- 1.5 Mpc. However, adding ASASSN-141p to the calibrating sample of Type Ia supernovae still requires an independent distance to the host galaxy. Finally, using our early-time photometric and spectroscopic observations, we rule out red giant secondaries and, assuming a favorable viewing angle and explosion time, any nondegenerate companion larger than 0.34 RG(circle dot).
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- galaxies: distances and redshifts
- supernovae: individual (ASASSN-141p
- Type Ia
- NGC 4666
- ASASSN-141p)
- white dwarfs
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Shappee, B. J.
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Piro, A. L.
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Holoien, T. W. - ...
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Prieto, J. L.
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Contreras, C.
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Itagaki, K.
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show more...
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Burns, C. R.
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Kochanek, C. S.
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Stanek, K. Z.
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Alper, E.
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Basu, U.
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Beacom, J. F.
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Bersier, D.
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Brimacombe, J.
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Conseil, E.
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Danilet, A. B.
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Dong, Subo
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Falco, E.
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Grupe, D.
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Hsiao, E. Y.
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Kiyota, S.
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Morrell, N.
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Nicolas, J.
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Phillips, M. M.
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Pojmanski, G.
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Simonian, G.
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Stritzinger, M.
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Szczygiel, D. M.
-
Taddia, Francesc ...
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Thompson, T. A.
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Thorstensen, J.
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Wagner, M. R.
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Wozniak, P. R.
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show less...
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Stockholm University