Study reveals properties of a Type Ib supernova in NGC 4080

phys.org | 3/25/2019 | Staff
entengo (Posted by) Level 3
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A recent study conducted by astronomers has revealed important observational properties of a Type Ib supernova designated MASTER OT J120451.50+265946.6, which exploded in the galaxy NGC 4080. The research, presented in a paper published March 14 on the arXiv pre-print repository, provides crucial hints about the nature of the supernova, what could disclose the progenitor of this stellar explosion.

Supernovae (SNe) are energetic stellar explosions basically classified as Type I and Type II, depending on their light curves and nature of their spectra. Type I SNe are divided into three subclasses: Ia, Ib and Ic. Type Ia and Ib are caused by the core collapse of massive stars, and in the case of Ib, they are generally hydrogen deficient with prominent helium features in their early time spectra.

MASTER - OT - J120451 - M12045 - October

MASTER OT J120451.50+265946.6 (or M12045 for short) was detected on October 28, 2014 by the MASTER-Tunka auto-detection system as an optical transient (OT) source. Afterward, the transient was classified as a Type I SNe that exploded in the Magellanic spiral galaxy NGC 4080, which is located some 50 million light years away from the Earth.

In order to uncover more insights into the nature of M12045, a team of astronomers led by Mridweeka Singh of Aryabhatta Research Institute of Observational Sciences (ARIES) in India, has analyzed the available data from photometric and spectroscopic observations of this supernova. The studied dataset, acquired using the 104-cm Sampurnanand Telescope (ST) and 201-cm Himalayan Chandra Telescope (HCT) located in India, includes a period up to 250 days since the...
(Excerpt) Read more at: phys.org
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