Speaker
Description
Over the last one and half decades, along with my group members and collaborators, I have been exploring the possible existence of (highly) magnetized white dwarfs exceeding the Chandrasekhar limit. This helps understanding perculiar over-luminous type Ia supernovae which predict their progenitor mass well above 1.4 solar mass Chandrasekhar limit. By theory, numerical calculations and numerical simulations, we have been showing the possible existence and formation of stable super-Chandrasekhar white dwarfs, even from stellar evolutions. In this talk I will summarize the results and their multifold observational implications, including detecting by their gravitational wave emission by future missions.
The talk will be based on the following papers:
U. Das, B. Mukhopadhyay, Phys. Rev. Lett., 2013
S. Subramanian, B. Mukhopadhyay, MNRAS, 2015
B. Mukhopadhyay, A. R. Rao, JCAP, 2016
B. Mukhopadhyay, A. R. Rao, T. S. Bhatia, MNRAS, 2017
S. Kalita, B. Mukhopadhyay, MNRAS, 2019
A. Gupta, B. Mukhopadhyay, C. A. Tout, MNRAS, 2020
S. Kalita, T. Mondal, C. A. Tout, T. Bulik, B. Mukhopadhyay, MNRAS, 2021
M Bhattacharya, A. J. Hackett, A. Gupta, C. A. Tout, B. Mukhopadhyay, ApJ, 2022
D. Deb, B. Mukhopadhyay, F. Weber, ApJ, 2022