Mukhopadhyay, B (2018) Exploring a missing link between peculiar, sub- and super-Chandrasekhar type Ia supernovae by modifying Einstein's gravity. In: 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, 12 - 18 July 2015, Rome, pp. 1227-1232.
|
PDF
MG14_RDTEGRARFT_1227-1232_2018.pdf - Published Version Download (252kB) | Preview |
Abstract
Observations of several peculiar, under- and over-luminous type Ia supernovae (SNeIa) argue for exploding masses widely different from the Chandrasekhar-limit. We explore the modification to Einstein's gravity in white dwarfs for the first time in the literature, which shows that depending on the (density dependent) modified gravity parameter α, chosen for the present purpose of representation, limiting mass of white dwarfs could be significantly sub- as well as super-Chandrasekhar. Hence, this unifies the apparently disjoint classes of SNeIa, establishing the importance of modified Einstein's gravity in white dwarfs. Our discovery questions both the global validity of Einstein's gravity and the uniqueness of Chandrasekhar's limit.
| Item Type: | Conference Paper |
|---|---|
| Publication: | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings |
| Publisher: | World Scientific Publishing Co. Pte. Ltd. |
| Additional Information: | The copyright for this article belongs to the Authors. |
| Keywords: | Astrophysics; Gravitation; Relativity; Supernovae, Density dependent, White dwarfs |
| Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 02 Sep 2022 04:00 |
| Last Modified: | 02 Sep 2022 04:00 |
| URI: | https://eprints.iisc.ac.in/id/eprint/76347 |
Actions (login required)
 |
View Item |
