Abstract Details
| Name: Hrishav Das Affiliation: Indian Institute of Astrophysics Conference ID: ASI2025_643 Title : Photometric and Spectroscopic Study of Type Iax Supernova SN 2022eyw Authors and Co-Authors : Hrishav Das 1,2, D.K. Sahu 1, Anirban Dutta 3, Mridweeka Singh 1, G.C. Anupama 1, R.S. Teja 1,2 Abstract Type : Poster Abstract Category : High Energy Phenomena, Fundamental Physics and Astronomy Abstract : Type Iax supernovae (SNe Iax), also known as SN 2002cx-like supernovae, are the most diverse class of "peculiar" thermonuclear supernovae. With ongoing high-cadence, deep supernova searches, the sample size of SNe Iax is increasing, and around 100 SNe have been classified as type Iax. To understand the diversity and its origin within this class, it is important to study individual objects in detail. In this poster, we present results on a type Iax supernova, SN 2022eyw, hosted by an active galactic nucleus candidate, MCG+11-16-003. A detailed spectroscopic and photometric study of SN 2022eyw is carried out using data obtained with the Himalayan Chandra Telescope (HCT). SN 2022eyw is a bright SN Iax with a peak g-band absolute magnitude of −17.64 ± 0.07 mag at a distance of ~37.15 Mpc. Based on the observed light curves and spectra, the light curve decline rate and expansion velocity are estimated. An analytical fit to the bolometric light curve is used to estimate the mass of Nickel-56 synthesized during the explosion. These parameters provide a deeper insight into the progenitor and explosion mechanisms of these events. We also compare the spectra and light curves of SN 2022eyw with those of other SNe Ia and Iax to highlight their differences and diversity. |