Observational properties of a Type Ib supernova MASTER OT J120451.50+265946.6 in NGC 4080

Singh, Mridweeka ; Misra, Kuntal ; Sahu, D K ; Dastidar, Raya ; Gangopadhyay, Anjasha ; Srivastav, Shubham ; Anupama, G C ; Bose, Subhash ; Lipunov, Vladimir ; Chakradhari, N K ; Kumar, Brajesh ; Kumar, Brijesh ; Pandey, S B ; Gorbovskoy, Evgeny ; Balanutsa, Pavel (2019) Observational properties of a Type Ib supernova MASTER OT J120451.50+265946.6 in NGC 4080 Monthly Notices of the Royal Astronomical Society, 485 (4). pp. 5438-5452. ISSN 0035-8711

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Official URL: http://doi.org/10.1093/mnras/stz752

Related URL: http://dx.doi.org/10.1093/mnras/stz752

Abstract

MASTER OT J120451.50+265946.6 (M12045), discovered by the MASTER Global Robotic Net, is a Type Ib supernova (SN) that exploded in NGC 4080. We present the BVRI photometric and spectroscopic observations up to ∼250 d since Bmax. At the time of discovery the SN was a few weeks past maximum light and our observations capture the linearly declining light-curve phase. M12045 declines faster as compared to SNe 1999dn and 2009jf at comparable epochs. Rigorous spectroscopic monitoring reveals that M12045 is a normal Type Ib SN. The analysis of the nebular phase spectra indicates that ∼0.90 M⊙ of O is ejected in the explosion. The line ratio of [O i] and [Ca ii] in the nebular phase supports a massive WR progenitor with main-sequence mass of ∼20 M⊙.

Item Type:Article
Source:Copyright of this article belongs to The Royal Astronomical Society
Keywords:techniques: photometric, techniques: spectroscopic, supernovae: general, supernovae: individual: MASTER OT J120451.50+265946.6 (M12045), galaxies: individual: NGC 4080
ID Code:130606
Deposited On:01 Dec 2022 11:06
Last Modified:01 Dec 2022 11:06

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