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Exploring the optical behaviour of a Type Iax supernova SN 2014dt

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dc.contributor.author Singh, M
dc.contributor.author Misra, K
dc.contributor.author Sahu, D. K
dc.contributor.author Dastidar, R
dc.contributor.author Gangopadhyay, A
dc.contributor.author Bose, S
dc.contributor.author Srivastav, S
dc.contributor.author Anupama, G. C
dc.contributor.author Chakradhari, N. K
dc.contributor.author Brajesh Kumar
dc.contributor.author Kumar, B
dc.contributor.author Pandey, S. B
dc.date.accessioned 2020-11-17T14:37:00Z
dc.date.available 2020-11-17T14:37:00Z
dc.date.issued 2018-02
dc.identifier.citation Monthly Notices of the Royal Astronomical Society, Vol. 474, No. 2, pp. 2551-2563 en_US
dc.identifier.issn 1365-2966
dc.identifier.uri http://prints.iiap.res.in/handle/2248/7179
dc.description Restricted Access © Royal Astronomical Society https://doi.org/10.1093/mnras/stx2916 en_US
dc.description.abstract We present optical photometric (up to ∼ 410 d since B max ) and spectroscopic (up to ∼ 157 d since B max ) observations of a Type Iax supernova (SN) 2014dt located in M61. SN 2014dt is one of the brightest and closest ( D ∼ 20 Mpc) discovered Type Iax SN. It best matches the light-curve evolution of SN 2005hk and reaches a peak magnitude of M B ∼− 18.13 ± 0.04 mag with m 15 ∼ 1.35 ± 0.06 mag. The early spectra of SN 2014dt are similar to other Type Iax SNe, whereas the nebular spectrum at 157 d is dominated by narrow emission features with less blending as compared to SNe 2008ge and 2012Z. The ejecta velocities are between 5000 and 1000 km s − 1 , which also confirms the low-energy budget of Type Iax SN 2014dt compared to normal Type Ia SNe. Using the peak bolometric luminosity of SN 2005hk, we estimate the 56 Ni mass of ∼ 0.14 M . The striking similarity between SN 2014dt and SN 2005hk implies that a comparable amount of 56 Ni would have been synthesized in the explosion of SN 2014dt. en_US
dc.language.iso en en_US
dc.publisher Oxford University Press on behalf of the Royal Astronomical Society en_US
dc.subject Techniques: photometric en_US
dc.subject Techniques: spectroscopic en_US
dc.subject Supernovae: general en_US
dc.subject Supernovae: individual: SN 2014dt en_US
dc.subject Galaxies: individual: M61 en_US
dc.title Exploring the optical behaviour of a Type Iax supernova SN 2014dt en_US
dc.type Article en_US

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