Search: onr:"swepub:oai:DiVA.org:su-151209" >
iPTF 16asu :
iPTF 16asu : A Luminous, Rapidly Evolving, and High-velocity Supernova
-
Whitesides, L. (author)
-
- Lunnan, Ragnhild (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),California Institute of Technology, USA
-
Kasliwal, M. M. (author)
-
show more...
-
Perley, D. A. (author)
-
Corsi, A. (author)
-
Cenko, S. B. (author)
-
Blagorodnova, N. (author)
-
Cao, Y. (author)
-
Cook, D. O. (author)
-
Doran, G. B. (author)
-
Frederiks, D. D. (author)
-
- Fremling, Christoffer (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Hurley, K. (author)
-
- Karamehmetoglu, Emir (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Kulkarni, S. R. (author)
-
Leloudas, G. (author)
-
Masci, F. (author)
-
Nugent, P. E. (author)
-
Ritter, A. (author)
-
Rubin, A. (author)
-
Savchenko, V. (author)
-
- Sollerman, Jesper (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Svinkin, D. S. (author)
-
- Taddia, Francesco (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Vreeswijk, P. (author)
-
Wozniak, P. (author)
-
show less...
-
(creator_code:org_t)
- 2017-12-18
- 2017
- English.
-
In: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 851:2
- Related links:
-
https://authors.libr...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.3...
-
show less...
Abstract
Subject headings
Close
- Wide-field surveys are discovering a growing number of rare transients whose physical origin is not yet well understood. Here we present optical and UV data and analysis of intermediate Palomar Transient Factory (iPTF) 16asu, a luminous, rapidly evolving, high-velocity, stripped-envelope supernova ( SN). With a rest-frame rise time of just four. days and a peak absolute magnitude of M-g = -20.4 mag, the light curve of iPTF 16asu is faster and more luminous than that of previous rapid transients. The spectra of iPTF 16asu show a featureless blue continuum near peak that develops into an SN Ic-BL spectrum on the decline. We show that while the late-time light curve could plausibly be powered by Ni-56 decay, the early emission requires a different energy source. Nondetections in the X-ray and radio strongly constrain the energy coupled to relativistic ejecta to be at most comparable to the class of low-luminosity gamma-ray bursts (GRBs). We suggest that the early emission may have been powered by either a rapidly spinning-down magnetar or by shock breakout in an extended envelope of a very energetic explosion. In either scenario a central engine is required, making iPTF 16asu an intriguing transition object between superluminous SNe, SNe Ic-BL, and low-luminosity GRBs.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- gamma-ray burst: general
- shock waves
- stars: magnetars
- supernovae: general
- supernovae: individual (iPTF 16asu)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Whitesides, L.
-
Lunnan, Ragnhild
-
Kasliwal, M. M.
-
Perley, D. A.
-
Corsi, A.
-
Cenko, S. B.
-
show more...
-
Blagorodnova, N.
-
Cao, Y.
-
Cook, D. O.
-
Doran, G. B.
-
Frederiks, D. D.
-
Fremling, Christ ...
-
Hurley, K.
-
Karamehmetoglu, ...
-
Kulkarni, S. R.
-
Leloudas, G.
-
Masci, F.
-
Nugent, P. E.
-
Ritter, A.
-
Rubin, A.
-
Savchenko, V.
-
Sollerman, Jespe ...
-
Svinkin, D. S.
-
Taddia, Francesc ...
-
Vreeswijk, P.
-
Wozniak, P.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
- Articles in the publication
-
Astrophysical Jo ...
- By the university
-
Stockholm University