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  • Prentice, S. J. (author)

Investigating the properties of stripped-envelope supernovae; what are the implications for their progenitors?

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2018-12-07
  • Oxford University Press (OUP),2019
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-172063
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-172063URI
  • https://doi.org/10.1093/mnras/sty3399DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • We present observations and analysis of 18 stripped-envelope supernovae observed during 2013-2018. This sample consists of five H/He-rich SNe, sixH-poor/He-rich SNe, three narrow lined SNe Ic, and four broad lined SNe Ic. The peak luminosity and characteristic time-scales of the bolometric light curves are calculated, and the light curves modelled to derive Ni-56 and ejecta masses (M-Ni and M-cj). Additionally, the temperature evolution and spectral line velocity curves of each SN are examined. Analysis of the [O I] line in the nebular phase of eight SNe suggests their progenitors had initial masses < 20 M-circle dot. The bolometric light curve properties are examined in combination with those of other SE events from the literature. The resulting data set gives the M-ej distribution for 80 SE-SNe, the largest such sample in the literature to date, and shows that SNe Ib have the lowest median M-ej, followed by narrow-lined SNe Ic, H/He-rich SNe, broad-lined SNe Ic, and finally gamma-ray burst SNe. SNe Ic-6/7 show the largest spread of M-ej ranging from similar to 1.2-11 M-circle dot, considerably greater than any other subtype. For all SE-SNe = 2.8 +/- 1.5 M-circle dot which further strengthens the evidence that SE-SNe arise from low-mass progenitors which are typically <5 M-circle dot at the time of explosion, again suggesting M-ZAMS < 25 M-circle dot. The low and lack of clear bimodality in the distribution implies < 30 M-circle dot progenitors and that envelope stripping via binary interaction is the dominant evolutionary pathway of these SNe.

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  • Ashall, C. (author)
  • James, P. A. (author)
  • Short, L. (author)
  • Mazzali, P. A. (author)
  • Bersier, D. (author)
  • Crowther, P. A. (author)
  • Barbarino, CristinaStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)cbarb (author)
  • Chen, T. -W. (author)
  • Copperwheat, C. M. (author)
  • Darnley, M. J. (author)
  • Denneau, L. (author)
  • Elias-Rosa, N. (author)
  • Fraser, M. (author)
  • Galbany, L. (author)
  • Gal-Yam, A. (author)
  • Harmanen, J. (author)
  • Howell, D. A. (author)
  • Hosseinzadeh, G. (author)
  • Inserra, C. (author)
  • Kankare, E. (author)
  • Karamehmetoglu, EmirStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)emka6994 (author)
  • Lamb, G. P. (author)
  • Limongi, M. (author)
  • Maguire, K. (author)
  • McCully, C. (author)
  • Olivares E., F. (author)
  • Piascik, A. S. (author)
  • Pignata, G. (author)
  • Reichart, D. E. (author)
  • Rest, A. (author)
  • Reynolds, T. (author)
  • Rodríguez, Ó. (author)
  • Saario, J. L. O. (author)
  • Schulze, S. (author)
  • Smartt, S. J. (author)
  • Smith, K. W. (author)
  • Sollerman, JesperStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)solle (author)
  • Stalder, B. (author)
  • Sullivan, M. (author)
  • Taddia, FrancescoStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)ftadd (author)
  • Valenti, S. (author)
  • Vergani, S. D. (author)
  • Williams, S. C. (author)
  • Young, D. R. (author)
  • Stockholms universitetInstitutionen för astronomi (creator_code:org_t)

Related titles

  • In:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)485:2, s. 1559-15780035-87111365-2966

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