Effect of hyperons on f -mode oscillations in neutron stars [PDF]
, 2020 As the densities in the interior of neutron stars exceed those of terrestrial nuclear experiments, they provide a scope for studying the nature of dense matter under extreme conditions.
B. Pradhan, D. Chatterjee
semanticscholar +1 more source
Radial oscillations and tidal Love numbers of dark energy stars [PDF]
The European Physical Journal Plus, 2020 We investigate the properties of relativistic stars made of dark energy. We model stellar structure assuming (1) isotropic perfect fluid and (2) a dark energy inspired equation of state, the generalized equation of state of Chaplygin gas, as we will be ...
Grigorios P Panotopoulos +2 more
semanticscholar +1 more source
MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): PLANETS, OSCILLATIONS, ROTATION, AND MASSIVE STARS [PDF]
, 2013 We substantially update the capabilities of the open source software package Modules for Experiments in Stellar Astrophysics (MESA), and its one-dimensional stellar evolution module, MESAstar.
B. Paxton +10 more
semanticscholar +1 more source
Detailed Characterization of Heartbeat Stars and Their Tidally Excited Oscillations [PDF]
Astrophysical Journal, 2020 Heartbeat stars are a class of eccentric binary stars with short-period orbits and characteristic “heartbeat” signals in their light curves at periastron, caused primarily by tidal distortion.
Shelley J. Cheng +4 more
semanticscholar +1 more source
Solar-Like Oscillations in a Massive Star [PDF]
Science, 2009 Star Gazing Seismology of stars provides a unique insight into physical mechanisms taking place in their interior. Like the Sun, some stars have low-amplitude pulsations that are excited by turbulent convection in their outer layers. Belkacem et al. (p.
Belkacem, Kevin +17 more
openaire +5 more sources
Radial oscillations and stability of multiple-fluid compact stars [PDF]
, 2020 I derive a system of pulsation equations for compact stars made up of an arbitrary number of perfect fluids that can be used to study radial oscillations and stability with respect to small perturbations.
B. Kain
semanticscholar +1 more source
Radial oscillations and gravitational wave echoes of strange stars for various equations of state [PDF]
, 2020 We study the radial oscillations of non-rotating strange stars and their characteristic echo frequencies for three Equation of States (EoSs), viz., MIT Bag model EoS, linear EoS and polytropic EoS.
Jyatsnasree Bora, Umananda Dev Goswami
semanticscholar +1 more source
Quark models and radial oscillations: decoding the HESS J1731-347 compact object’s equation of state [PDF]
The European Physical Journal C, 2023 We investigate the peculiar nature of strange stars through an analysis of different quark models, i.e. vBag model and CFL model equation of states at different parameter sets, and focus on understanding the equation of state governing the intriguing ...
I. A. Rather, G. Panotopoulos, I. Lopes
semanticscholar +1 more source
Oscillations on the star Procyon [PDF]
Nature, 2004 Stars are sphere of hot gas whose interiors transmit acoustic waves very efficiently. Geologists learn about the interior structure of Earth by monitoring how seismic waves propagate through it and, in a similar way, the interior of a star can be probed using the periodic motions on the surface that arise from such waves. Matthews et al. claim that the
Bouchy, Francois +5 more
openaire +3 more sources
Instabilities of Scalar Fields around Oscillating Stars [PDF]
Physical Review Letters, 2021 18 pages, 18 figures, accepted for publication in Phys.
Ikeda, Taishi +2 more
openaire +6 more sources