Detailed spectrophotometric analysis of the superluminous and fast evolving SN 2019neq-Reference-Cited by-同舟云学术

Detailed spectrophotometric analysis of the superluminous and fast evolving SN 2019neq

Published:2023-11-27 Issue:3 Volume:527 Page:6473-6494
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Fiore Achille¹²^ORCID,Benetti Stefano²^ORCID,Tartaglia Leonardo²³,Jerkstrand Anders⁴,Salmaso Irene²⁵,Tomasella Lina²^ORCID,Morales-Garoffolo Antonia⁶,Geier Stefan⁷⁸,Elias-Rosa Nancy²⁹,Cappellaro Enrico²,Wang Xiaofeng¹⁰¹¹,Mo Jun¹⁰,Chen Zhihao¹⁰,Yan Shengyu¹⁰,Pastorello Andrea²,Mazzali Paolo A¹²¹³,Ciolfi Riccardo²¹⁴^ORCID,Cai Yongzhi¹⁵¹⁶¹⁷^ORCID,Fraser Morgan¹⁸^ORCID,Gutiérrez Claudia P¹⁹²⁰^ORCID,Karamehmetoglu Emir⁴²¹,Kuncarayakti Hanindyo²²,Moran Shane²²,Ochner Paolo²⁵,Reguitti Andrea²²³^ORCID,Reynolds Thomas M²²²⁴^ORCID,Valerin Giorgio²⁵

Affiliation:

1. Institut für Theoretische Physik, Goethe Universität , Max-von-Laue-Str. 1, D-60438 Frankfurt am Main , Germany

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

3. INAF – Osservatorio Astronomico d’Abruzzo , via M. Maggini snc, I-64100 Teramo , Italy

4. The Oskar Klein Centre, Department of Astronomy, Stockholm University , AlbaNova, SE-10691 Stockholm , Sweden

5. Dipartimento di Fisica e Astronomia ‘G. Galilei’, Università di Padova , Vicolo dell’Osservatorio 3, I-35122 Padova , Italy

6. Department of Applied Physics, School of Engineering, University of Cádiz , Campus of Puerto Real, E-11519 Cádiz , Spain

7. Instituto de Astrofisíca de Canarias , E-38200 La Laguna, Tenerife, Canary Islands , Spain

8. GRANTECAN: Cuesta de San José s/n , E-38712 Breña Baja, La Palma , Spain

9. Institute of Space Sciences (ICE , CSIC), Campus UAB, Carrer de Can Magrans s/n, E-08193 Barcelona , Spain

10. Physics Department and Tsinghua Center for Astrophysics (THCA) , Tsinghua University, Beijing 100084 , China

11. Beijing Planetarium, Beijing Academy of Science and Technology , Beijing 100044 , China

12. Astrophysics Research Institute, Liverpool John Moores University , Liverpool L3 5RF , UK

13. Max-Planck-Institut für Astrophysik , Karl-Schwarzschild Str.1, D-85748 , Garching, Germany

14. INFN – Sezione di Padova , Via Francesco Marzolo 8, I-35131 Padova , Italy

15. Yunnan Observatories, Chinese Academy of Sciences , Kunming 650216 , P. R. China

16. Key Laboratory for the Structure and Evolution of Celestial Objects , Chinese Academy of Sciences, Kunming 650216 , P. R. China

17. International Centre of Supernovae, Yunnan Key Laboratory , Kunming 650216 , P. R. China

18. UCD School of Physics, L.M.I. Main Building , Beech Hill Road, Dublin 4, D04 P7W1 , Ireland

19. Institut d’Estudis Espacials de Catalunya (IEEC) , Gran Capità, 2-4, Edifici Nexus, Desp. 201, E-08034 Barcelona , Spain

20. Institute of Space Sciences (ICE, CSIC), Campus UAB , Carrer de Can Magrans, s/n, E-08193 Barcelona , Spain

21. Department of Physics and Astronomy, Aarhus University , Ny Munkegade 120, DK-8000 Aarhus C , Denmark

22. Department of Physics and Astronomy, University of Turku , Vesilinnantie 5, FI-20500 Turku , Finland

23. INAF – Osservatorio Astronomico di Brera , Via Bianchi 46, I-23807 Merate (LC) , Italy

24. Cosmic DAWN Centre, Niels Bohr Institute, University of Copenhagen , Rådmandsgade, 62-64, DK-2200 Copenhagen , Denmark

Abstract

ABSTRACT SN 2019neq was a very fast evolving superluminous supernova. At a redshift z = 0.1059, its peak absolute magnitude was −21.5 ± 0.2 mag in g band. In this work, we present data and analysis from an extensive spectrophotometric follow-up campaign using multiple observational facilities. Thanks to a nebular spectrum of SN 2019neq, we investigated some of the properties of the host galaxy at the location of SN 2019neq and found that its metallicity and specific star formation rate are in a good agreement with those usually measured for SLSNe-I hosts. We then discuss the plausibility of the magnetar and the circumstellar interaction scenarios to explain the observed light curves, and interpret a nebular spectrum of SN 2019neq using published sumo radiative-transfer models. The results of our analysis suggest that the spin-down radiation of a millisecond magnetar with a magnetic field $B\simeq 6\times 10^{14}\, \mathrm{G}$ could boost the luminosity of SN 2019neq.

Funder

INAF

National Natural Science Foundation of China

MIUR

Istituto Nazionale di Astrofisica

MICINN

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad3655/53863156/stad3655.pdf

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