Work

Measurement of the Nuclear Symmetry Energy Slope L0 from Vortex Oscillations in Pulsar Glitches

Year: 2025

Type: article

Abstract: This working paper presents a computational investigation into extracting nuclear physics parameters from pulsar glitch recovery data. Using Bayesian inference methods, we analyze post-glitch oscillations in the Vela pulsar and PSR J1522-5735 to constrain the nuclear symmetry energy slope parameter L₀. The analysis employs a calibrated vortex oscillation model and yields L₀ = 60.5 ± 6.7 MeV, consistent with measurements from heavy-ion collisions, gravitational waves (GW170817), and NICER observations. We also report an empirical scaling relationship α ∝ Ω^0.57 for the geometric factor across different pulsar rotation rates.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.17537459

Author: siltala, pekka

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7103982736

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