Abstract
Mature neutron stars are expected to exhibit gravity g modes due to stratification caused by a varying matter composition. These modes are affected by nuclear reactions, leading to complex (damped) mode frequencies and the suppression of high-order g modes. This is in contrast with the common non-dissipative analysis which leads to an infinite g-mode spectrum. Focusing on the transition between the fast- and slow-reaction regimes, we examine the precise impact of nuclear reactions on the g-mode spectrum. The general framework for the analysis is presented along with sample numerical results for a matter model based on the BSk21 equation of state with a suitable parametrization for the reaction rates.
| Original language | English |
|---|---|
| Pages (from-to) | 1721–1729 |
| Number of pages | 9 |
| Journal | Monthly Notices of the Royal Astronomical Society |
| Volume | 531 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 25 May 2024 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
Funding
NA acknowledges support from STFC via grant number ST/R00045X/1.
| Funders | Funder number |
|---|---|
| Science and Technology Facilities Council | ST/R00045X/1 |
| Science and Technology Facilities Council |
Keywords
- stars: interiors
- stars: neutron
- stars: oscillations