| Name: | Shrutika Tiwari |
| Affiliation: | School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur. |
| Conference ID : | ASI2023_306 |
| Title : | Luminous type Ia supernova SN 2013bz. |
| Authors : | Shrutika Tiwari, N. K. Chakradhari, D.K. Sahu, G. C. Anupama and K. R. Sahu. |
| Mode of Presentation: | Poster |
| Abstract Category : | Extragalactic Astronomy |
| Abstract : | We present photometric and spectroscopic studies of type Ia supernova SN 2013bz in PGC 170248. The observations range from ~ +6 to +69 d with respect to the maximum light in the B band. SN 2013bz reached a maximum brightness of 15.71+/- 0.04 mag in the B band on JD 245 6409.5 +/- 0.8. The decline rate parameter is estimated as 0.92 +/- 0.04 mag, which is smaller than that of a typical SN Ia. The absolute magnitudes at maximum in B and V bands are estimated as -19.61 +/- 0.20 mag and -19.70 +/- 0.20 mag, respectively. The peak bolometric luminosity is derived as log L_bol = 43.38 +/- 0.06 erg/s. This suggests that 0.96 +/- 0.24 solar mass of radioactive 56Ni was synthesized in the explosion. The spectral and velocity evolution of SN 2013bz is similar to a normal SN Ia. Though SN 2013bz was suggested to be a super-Chandrasekhar (09dc-like) type Ia object, but our analysis shows that SN 2013bz is a slow-declining, luminous event with photometric and spectral characteristics similar to normal SNe Ia. |
