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Slowly fading super...
Slowly fading super-luminous supernovae that are not pair-instability explosions
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Nicholl, M. (author)
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Smartt, S. J. (author)
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Jerkstrand, A. (author)
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show more...
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Inserra, C. (author)
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McCrum, M. (author)
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Kotak, R. (author)
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Fraser, M. (author)
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Wright, D. (author)
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Chen, T-W (author)
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Smith, K. (author)
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Young, D. R. (author)
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Sim, S. A. (author)
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Valenti, S. (author)
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Howell, D. A. (author)
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Bresolin, F. (author)
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Kudritzki, R. P. (author)
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Tonry, J. L. (author)
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Huber, M. E. (author)
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Rest, A. (author)
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Pastorello, A. (author)
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Tomasella, L. (author)
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Cappellaro, E. (author)
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Benetti, S. (author)
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Mattila, S. (author)
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Kankare, E. (author)
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Kangas, T. (author)
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- Leloudas, Georgios (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),University of Copenhagen, Denmark
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- Sollerman, Jesper (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Taddia, Francesco (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Berger, E. (author)
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Chornock, R. (author)
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Narayan, G. (author)
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Stubbs, C. W. (author)
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Foley, R. J. (author)
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Lunnan, R. (author)
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Söderberg, A. (author)
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Sanders, N. (author)
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Milisavljevic, D. (author)
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Margutti, R. (author)
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Kirshner, R. P. (author)
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Elias-Rosa, N. (author)
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Morales-Garoffolo, A. (author)
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Taubenberger, S. (author)
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Botticella, M. T. (author)
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Gezari, S. (author)
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Urata, Y. (author)
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Rodney, S. (author)
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Riess, A. G. (author)
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Scolnic, D. (author)
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Wood-Vasey, W. M. (author)
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Burgett, W. S. (author)
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Chambers, K. (author)
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Flewelling, H. A. (author)
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Magnier, E. A. (author)
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Kaiser, N. (author)
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Metcalfe, N. (author)
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Morgan, J. (author)
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Price, P. A. (author)
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Sweeney, W. (author)
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Waters, C. (author)
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(creator_code:org_t)
- 2013-10-16
- 2013
- English.
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In: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 502:7471, s. 346-
- Related links:
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https://arxiv.org/ab...
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https://orca.cardiff...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Super-luminous supernovae(1-4) that radiate more than 1044 ergs per second at their peak luminosity have recently been discovered in faint galaxies at redshifts of 0.1-4. Some evolve slowly, resembling models of 'pair-instability' supernovae(5,6). Such models involve stars with original masses 140-260 times that of the Sun that now have carbon-oxygen cores of 65-130 solar masses. In these stars, the photons that prevent gravitational collapse are converted to electron-positron pairs, causing rapid contraction and thermonuclear explosions. Many solar masses of Ni-56 are synthesized; this isotope decays to Fe-56 via Co-56, powering bright light curves(7,8). Such massive progenitors are expected to have formed from metal-poor gas in the early Universe(9). Recently, supernova 2007bi in a galaxy at redshift 0.127 (about 12 billion years after the Big Bang) with a metallicity one-third that of the Sun was observed to look like a fading pair-instability supernova(1,10). Here we report observations of two slow-to-fade super-luminous supernovae that show relatively fast rise times and blue colours, which are incompatible with pair-instability models. Their late-time light-curve and spectral similarities to supernova 2007bi call the nature of that event into question. Our early spectra closely resemble typical fast-declining super-luminous supernovae(2,11,12), which are not powered by radio-activity. Modelling our observations with 10-16 solar masses of magnetar-energized(13,14) ejecta demonstrates the possibility of a common explosion mechanism. The lack of unambiguous nearby pair-instability events suggests that their local rate of occurrence is less than 6 x 10(-6) times that of the core-collapse rate.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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Nature
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To the university's database
- By the author/editor
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Nicholl, M.
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Smartt, S. J.
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Jerkstrand, A.
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Inserra, C.
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McCrum, M.
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Kotak, R.
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show more...
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Fraser, M.
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Wright, D.
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Chen, T-W
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Smith, K.
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Young, D. R.
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Sim, S. A.
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Valenti, S.
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Howell, D. A.
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Bresolin, F.
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Kudritzki, R. P.
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Tonry, J. L.
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Huber, M. E.
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Rest, A.
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Pastorello, A.
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Tomasella, L.
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Cappellaro, E.
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Benetti, S.
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Mattila, S.
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Kankare, E.
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Kangas, T.
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Leloudas, Georgi ...
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Sollerman, Jespe ...
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Taddia, Francesc ...
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Berger, E.
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Chornock, R.
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Narayan, G.
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Stubbs, C. W.
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Foley, R. J.
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Lunnan, R.
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Söderberg, A.
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Sanders, N.
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Milisavljevic, D ...
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Margutti, R.
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Kirshner, R. P.
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Elias-Rosa, N.
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Morales-Garoffol ...
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Taubenberger, S.
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Botticella, M. T ...
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Gezari, S.
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Urata, Y.
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Rodney, S.
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Riess, A. G.
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Scolnic, D.
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Wood-Vasey, W. M ...
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Burgett, W. S.
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Chambers, K.
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Flewelling, H. A ...
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Magnier, E. A.
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Kaiser, N.
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Metcalfe, N.
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Morgan, J.
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Price, P. A.
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Sweeney, W.
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Waters, C.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Nature
- By the university
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Stockholm University