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A global look into the world of interacting supernovae

Journal of Astrophysics and Astronomy volume 43, Article number: 51 (2022) Cite this article

Abstract

Interacting supernovae (SNe) IIn and Ibn show narrow emission lines and have always been a mysterious and unsolved genre in SNe physics. We present a comprehensive analysis of the temporal and spectroscopic behavior of a group of interacting SNe IIn and Ibn. We choose SNe 2012ab, 2020cui, 2020rc and 2019uo as representative members of these SN sub-types to probe the nature of explosion. Our study reveals that SNe IIn are heterogeneous, bright depicting multi-staged temporal evolution while SNe Ibn are moreover homogeneous, comparatively fainter than SNe IIn and short lived, but limited in a sample to firmly constrain the homogeneity. The spectroscopic features display a great diversity in H\(\alpha \) and He profiles for both SNe IIn and Ibn. The representative SN Ibn also show flash ionization signatures of CIII and NIII. Modeling of H\(\alpha \) reveals that SNe IIn have, in general, an asymmetric CSM which interacts with SN ejecta resulting in diversity in H\(\alpha \) profiles.

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  1. Image reduction and analysis facility.

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Acknowledgements

The authors thank the support staff of the 3.6m DOT, 2.00m HCT, 1.30m DFOT and 1.04m ST during the observations. They acknowledge Weizmann Interactive Supernova data REPository (WISeREP; http://wiserep.weizmann.ac.il). KM acknowledges BRICS grant DST/IMRCD/BRICS/Pilotcall/ProFCheap/2017(G).

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Authors and Affiliations

  1. Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8526, Japan

    Anjasha Gangopadhyay & Koji Kawabata

  2. Aryabhatta Research Institute of observational sciencES (ARIES), Nainital, 263001, India

    Anjasha Gangopadhyay & Kuntal Misra

  3. Millennium Institute of Astrophysics, Nuncio Monseñor Sotero Sanz 100, Providencia, Santiago, 8320000, Chile

    Raya Dastidar

  4. Indian Institute of Astrophysics, Koramangala, Bengaluru, 560034, India

    Mridweeka Singh

Authors
  1. Anjasha Gangopadhyay
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  2. Kuntal Misra
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  3. Koji Kawabata
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  4. Raya Dastidar
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  5. Mridweeka Singh
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Corresponding author

Correspondence to Anjasha Gangopadhyay.

Additional information

This article is part of the Special Issue on “Astrophysical Jets and Observational Facilities: A National Perspective”.

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Gangopadhyay, A., Misra, K., Kawabata, K. et al. A global look into the world of interacting supernovae. J Astrophys Astron 43, 51 (2022). https://doi.org/10.1007/s12036-022-09839-2

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  • DOI: https://doi.org/10.1007/s12036-022-09839-2

Keywords

  • Supernovae: general
  • supernovae: individual: SNe 2012ab, 2019uo, 2020cui and 2020rc
  • galaxies: individual—techniques: photometric—techniques: spectroscopic