| Name: | Debanjan Guha Roy |
| Affiliation: | Birla Institute of Technology and Science Pilani, Hyderabad Campus |
| Conference ID : | ASI2023_715 |
| Title : | Quasinormal mode oscillations of a neutron star |
| Authors : | Debanjan Guha Roy, Swastik Bhattacharya, Sarmistha Banik
(Birla Institute of Technology and Science Pilani, Hyderabad Campus) |
| Mode of Presentation: | Poster |
| Abstract Category : | General Relativity and Cosmology |
| Abstract : | Quasinormal mode oscillations of a neutron star decay by emission of gravitational waves. These gravitational waves carry imprints of physical phenomena occurring inside the star, which is otherwise inaccessible from outside. We solve the perturbation equations describing the fluid oscillations derived from the linearised Einstein equations. We can assume spacetime oscillations happening outside to represent outgoing gravitational waves only. The fluid oscillations in the interior and the spacetime oscillations outside the star with a given polytropic equation of state define the complete eigenvalue problem. Solving the equations with appropriate boundary conditions, we find the quasinormal mode frequency of various modes. |
