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The Fast-evolving Type Ib Supernova SN 2015dj in NGC 7371

  • Mridweeka Singh*
  • , Kuntal Misra
  • , Stefano Valenti
  • , Griffin Hosseinzadeh
  • , Andrea Pastorello
  • , Shubham Srivastav
  • , Anjasha Gangopadhyay*
  • , Raya Dastidar
  • , Lina Tomasella
  • , Iair Arcavi
  • , Stefano Benetti
  • , Emma Callis
  • , Enrico Cappellaro
  • , Nancy Elias-Rosa
  • , D. Andrew Howell
  • , Sang Chul Kim
  • , Curtis McCully
  • , Leonardo Tartaglia
  • , Giacomo Terreran
  • , Massimo Turatto
  • *Corresponding author for this work
  • Aryabhatta Research Institute of Observational Sciences
  • Pt. Ravishankar Shukla University
  • Korea Astronomy and Space Science Institute
  • University of California at Davis
  • Harvard-Smithsonian Center for Astrophysics
  • Astronomical Observatory of Padua
  • Queen's University Belfast
  • University of Delhi
  • Canadian Institute for Advanced Research
  • University College Dublin
  • CSIC
  • Las Cumbres Observatory Global Telescope Network, Inc.
  • University of California at Santa Barbara
  • University of Science and Technology UST
  • AlbaNova University Center
  • Northwestern University

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We present the detailed optical evolution of a Type Ib SN 2015dj in NGC 7371, using data spanning up to ∼170 days after discovery. SN 2015dj shares similarity in light-curve shape with SN 2007gr and peaks at M V = -17.37 0.02 mag. Analytical modeling of the quasi bolometric light curve yields 0.06 0.01 M o˙ of 56Ni, ejecta mass M o˙, and kinetic energy erg. The spectral features show a fast evolution and resemble those of spherically symmetric ejecta. The analysis of nebular phase spectral lines indicates a progenitor mass between 13-20 M o˙, suggesting a binary scenario.

Original languageEnglish
JournalAstrophysical Journal
Volume909
Issue number2
DOIs
StatePublished - 10 Mar 2021

Funding

FundersFunder number
Horizon 2020 Framework Programme
National Science Foundation852097

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