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Optical studies of ...
Optical studies of two stripped-envelope supernovae – SN 2015ap (Type Ib) and SN 2016P (Type Ic)
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Gangopadhyay, Anjasha (author)
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Misra, Kuntal (author)
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Sahu, D. K. (author)
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Wang, Shan-Qin (author)
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Kumar, Brajesh (author)
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Li, Long (author)
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Anupama, G. C. (author)
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Dastidar, Raya (author)
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Elias-Rosa, N. (author)
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Kumar, Brijesh (author)
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Singh, Mridweeka (author)
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Pandey, S. B. (author)
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Sanwal, Pankaj (author)
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Singh, Avinash (author)
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Srivastav, S. (author)
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- Tartaglia, Leonardo (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Tomasella, L. (author)
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(creator_code:org_t)
- 2020-07-07
- 2020
- English.
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In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 497:3, s. 3770-3789
- Related links:
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http://arxiv.org/pdf...
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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
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- We present the photometric and spectroscopic studies of a Type Ib SN 2015ap and a Type Ic SN 2016P. SN 2015ap is one of the bright (MV = −18.04 mag) Type Ib while SN 2016P lies at an average value among the Type Ic SNe (MV = −17.53 mag). Bolometric light-curve modelling of SNe 2015ap and 2016P indicates that both the SNe are powered by 56Ni + magnetar model with 56Ni masses of 0.01 and 0.002 M⊙, ejecta masses of 3.75 and 4.66 M⊙, spin period P0 of 25.8 and 36.5 ms, and magnetic field Bp of 28.39 × 1014 and 35.3 × 1014 G, respectively. The early spectra of SN 2015ap show prominent lines of He with a ‘W’ feature due to Fe complexes while other lines of Mg ii, Na i, and Si ii are present in both SNe 2015ap and 2016P. Nebular phase [O i] profile indicates an asymmetric profile in SN 2015ap. The [O i]/[Ca ii] ratio and nebular spectral modelling of SN 2015ap hint towards a progenitor mass between 12 and 20 M⊙.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- techniques: photometric
- techniques: spectroscopic
- supernovae: general
- supernovae: individual: SNe 2015ap
- 2016P
- galaxies: individual: IC 1776
- NGC 5374
- transients: supernovae
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Gangopadhyay, An ...
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Misra, Kuntal
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Sahu, D. K.
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Wang, Shan-Qin
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Kumar, Brajesh
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Li, Long
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show more...
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Anupama, G. C.
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Dastidar, Raya
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Elias-Rosa, N.
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Kumar, Brijesh
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Singh, Mridweeka
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Pandey, S. B.
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Sanwal, Pankaj
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Singh, Avinash
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Srivastav, S.
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Tartaglia, Leona ...
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Tomasella, L.
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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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Monthly notices ...
- By the university
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Stockholm University