Abstract Details
| Name: Brajesh Kumar Affiliation: Indian Institute of Astrophysics, Bangalore Conference ID: ASI2016_917 Title : Optical study of Type Ic supernova 2011jm Authors and Co-Authors : G. C. Anupama, D. K. Sahu, S. B. Pandey, S. Srivastav, V. V. Sokolov, A. S. Moskvitin et al. Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : We present optical photometric and low-resolution spectroscopic observations of a bright (~14.8 mag) Type Ic supernova (SN) 2011jm. This transient was discovered in public images of the Catalina Sky Survey in galaxy NGC 4809. The photometric follow-up (UBVRI broad-bands) of SN was performed using various telescopes in India and Russia. These observations are distributed over 40 epochs covering a total span of about 6 months. The optical low-resolution spectroscopic data were acquired using 2m HCT and 6m SAO telescopes at 7 epochs. We further obtained single epoch polarimetric data (in I-band) of SN using AIMPOL instrument at ARIES telescope. The SNID fittings and light curve investigations indicate that discovery of this event was relatively late (2-4 months after maximum light). The magnitude decay rate in V and I bands are similar while it is highest in B band. Here, we will also present various explosion parameters (e.g. Ni mass, explosion energy and photospheric velocity etc.) along with the polarization results. |