Oscillating strange quark matter objects excited in stellar systems
Authors:
- Marek Kutschera,
- Joanna Jałocha,
- Łukasz Bratek,
- Sebastian Kubis,
- Tomasz Kędziorek
Abstract
It is shown that strange quark matter (SQM) objects, stars, and planets, can very efficiently convert the mechanical energy into hadronic energy when they oscillate. This is because the mass density at the edge of SQM objects, rho_0=4.7*10^{14} g/cm^3, is the critical density below which SQM is unstable with respect to decay into photons, hadrons, and leptons. We consider here radial oscillations of SQM objects that could be induced in stellar or planetary systems where tidal interactions are ubiquitous. Oscillations of 0.1% radius amplitude already result in 1 keV per unit baryon number excitation near the surface of SQM stars. The excitation energy is converted into electromagnetic energy in a short time of 1 ms, during a few oscillations. Higher amplitude oscillations result in faster energy release that could lead to fragmentation or dissolution of SQM stars. This would have significant consequences for hypothetical SQM star binaries and planetary systems of SQM planets with regard to gravitational wave emission.
- Record ID
- CUTaba6155fd17147bb964646b0cd63cc7a
- Publication categories
- ;
- Author
- Journal series
- Astrophysical Journal, ISSN 0004-637X, e-ISSN 1538-4357, Continuous
- Issue year
- 2020
- Vol
- 897
- No
- 2
- Pages
- [1-6]
- Other elements of collation
- tab.; wykr.; Bibliografia (na s.) - 6; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 897, No. 2
- Keywords in English
- gravitational wave sources, compact objects, high energy astrophysics, stellar oscillations, tidal distortion, relativistic stars, compact binary stars
- DOI
- DOI:10.3847/1538-4357/ab97ab Opening in a new tab
- URL
- https://iopscience.iop.org/article/10.3847/1538-4357/ab97ab Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTaba6155fd17147bb964646b0cd63cc7a/
- URN
urn:pkr-prod:CUTaba6155fd17147bb964646b0cd63cc7a
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.