Abstract Details
| Name: KRIPA RAM SAHU Affiliation: School of Studies in Physics & Astrophysics, Pt. Ravishankar Shukla University Raipur, (C.G.) Conference ID: ASI2025_235 Title : Photometric and spectroscopic studies of Type Ia supernova SN 2011ae. Authors and Co-Authors : Kripa Ram Sahu1, Nand Kumar Chakradhari1, Mulchand Kurre1, Shrutika Tiwari1, G.C. Anupama2, D.K . Sahu2 Abstract Type : Poster Abstract Category : High Energy Phenomena, Fundamental Physics and Astronomy Abstract : We present optical UBVRI photometric and medium resolution spectroscopic observations of the Type Ia supernova SN 2011ae during -6 to +119 days relative to its B band maximum. SN 2011ae reached its maximum brightness in the B band on JD 2455621.43 ± 0.20, with an apparent magnitude of 13.46 ± 0.05 mag. This corresponds to peak absolute magnitude M(B) = -18.88 ± 0.22 mag. The post-peak decline is characterised by ∆m15(B) of 1.02 ± 0.01 mag. The peak quasi-bolometric luminosity for SN 2011ae is logL= 42.85 ± 0.02 erg/s. The mass of 56Ni synthesized in the explosion is estimated as 0.30 ± 0.05 solar mass. The spectrum obtained around maximum brightness shows absorption due to Si II, S II, Ca II, Fe II, and Fe III, consistent with the characteristics of type Ia SNe. The expansion velocity of the ejecta around the maximum, estimated using the Si II 6355 line, is found to be ~ 11000 km/s. |