Optical studies of two stripped-envelope supernovae – SN 2015ap (Type Ib) and SN 2016P (Type Ic)-Reference-Cited by-同舟云学术

Optical studies of two stripped-envelope supernovae – SN 2015ap (Type Ib) and SN 2016P (Type Ic)

Published:2020-07-07 Issue:3 Volume:497 Page:3770-3789
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Gangopadhyay Anjasha¹²,Misra Kuntal¹^ORCID,Sahu D K³,Wang Shan-Qin⁴,Kumar Brajesh³^ORCID,Li Long⁴,Anupama G C³,Dastidar Raya¹⁵^ORCID,Elias-Rosa N⁶⁷,Kumar Brijesh¹,Singh Mridweeka¹²⁸,Pandey S B¹,Sanwal Pankaj¹²,Singh Avinash³⁹^ORCID,Srivastav S¹⁰,Tartaglia L¹¹,Tomasella L¹²^ORCID

Affiliation:

1. Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital 263002, Uttarakhand, India

2. School of Studies in Physics and Astrophysics, Pandit Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India

3. Indian Institute of Astrophysics, Koramangala, Bangalore 560034, Karnataka, India

4. Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning 530004, People’s Republic of China

5. Department of Physics and Astrophysics, University of Delhi, South Campus, South Moti Bagh, Delhi 110007, New Delhi

6. Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans S/N, E-08193 Barcelona, Spain

7. Institut d’Estudis Espacials de Catalunya (IEEC), c/Gran Capitá 2-4, Edif. Nexus 201, E-08034 Barcelona, Spain

8. Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea

9. Joint Astronomy Programme, Department of Physics, Indian Institute of Science, Bengaluru 560012, Karnataka, India

10. Queen’s University, University Rd, Belfast BT7 1NN, UK

11. Department of Astronomy and The Oskar Klein Centre, AlbaNova University Center, Stockholm University, SE-106 91 Stockholm, Sweden

12. INAF Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, I-35122 Padova, Italy

Abstract

ABSTRACT 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⊙.

Funder

Science and Engineering Research Board

Ministerio de Ciencia e Innovación

Federación Española de Enfermedades Raras

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/staa1821/33470685/staa1821.pdf

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