Neutrino trapping in extremely compact objects described by the
internal Schwarzschild-(anti-)de Sitter spacetimes

J 2012

Neutrino trapping in extremely compact objects described by the internal Schwarzschild-(anti-)de Sitter spacetimes

HLADÍK, Jan, Zdeněk STUCHLÍK, Gabriel TÖRÖK and Martin URBANEC

Basic information

Original name

Neutrino trapping in extremely compact objects described by the internal Schwarzschild-(anti-)de Sitter spacetimes

Authors

HLADÍK, Jan, Zdeněk STUCHLÍK, Gabriel TÖRÖK and Martin URBANEC

Edition

General Relativity and Gravitation, US - Spojené státy americké, 2012, 0001-7701

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Organization unit

Faculty of Philosophy and Science in Opava

DOI

http://dx.doi.org/10.1007/s10714-012-1346-3

UT WoS

000304163400002

Keywords in English

Extremely compact stars; Neutrino trapping; S(a)dS spacetimes

Links

GD205/09/H033, research and development project. LC06014, research and development project. MSM4781305903, plan (intention).

Změněno: 7/4/2021 08:25, Mgr. Pavlína Jalůvková

Abstract

V originále

Extremely compact stars (ECS) (having radius R < 3GM/c 2) contain captured null geodesics. Certain part of neutrinos produced in their interior will be trapped, influencing thus their neutrino luminosity and thermal evolution. The trapping effect has been previously investigated for the internal Schwarzschild spacetimes with the uniform distribution of energy density. Here, we extend our earlier study considering the influence of the cosmological constant ? on the trapping phenomena. Our model for the interior of ECS is based on the internal Schwarzschild-(anti-)de Sitter (S(a)dS) spacetimes with uniform distribution of energy density matched to the external vacuum S(a)dS spacetime with the same cosmological constant. Assuming uniform and isotropic distribution of local neutrino emissivity we determine behavior of the trapping coefficients, i. e., "global" one representing influence on the neutrino luminosity and "local" one representing influence on the cooling process. We demonstrate

Citovat

HLADÍK, Jan, Zdeněk STUCHLÍK, Gabriel TÖRÖK and Martin URBANEC. Neutrino trapping in extremely compact objects described by the internal Schwarzschild-(anti-)de Sitter spacetimes. General Relativity and Gravitation. US - Spojené státy americké, 2012, vol. 44, No 6, p. 1393-1417. ISSN 0001-7701. Available from: https://dx.doi.org/10.1007/s10714-012-1346-3.

@article{42500,
   author = {Hladík, Jan and Stuchlík, Zdeněk and Török, Gabriel and Urbanec, Martin},
   article_location = {US - Spojené státy americké},
   article_number = {6},
   doi = {http://dx.doi.org/10.1007/s10714-012-1346-3},
   keywords = {Extremely compact stars; Neutrino trapping; S(a)dS spacetimes},
   language = {eng},
   issn = {0001-7701},
   journal = {General Relativity and Gravitation},
   title = {Neutrino trapping in extremely compact objects described by the internal Schwarzschild-(anti-)de Sitter spacetimes},
   url = {http://link.springer.com/content/pdf/10.1007%2Fs10714-012-1346-3},
   volume = {44},
   year = {2012}
}

TY  - JOUR
ID  - 42500
AU  - Hladík, Jan - Stuchlík, Zdeněk - Török, Gabriel - Urbanec, Martin
PY  - 2012
TI  - Neutrino trapping in extremely compact objects described by the internal Schwarzschild-(anti-)de Sitter spacetimes
JF  - General Relativity and Gravitation
VL  - 44
IS  - 6
SP  - 1393-1417
EP  - 1393-1417
SN  - 00017701
KW  - Extremely compact stars
KW  - Neutrino trapping
KW  - S(a)dS spacetimes
UR  - http://link.springer.com/content/pdf/10.1007%2Fs10714-012-1346-3
N2  - Extremely compact stars (ECS) (having radius R < 3GM/c 2) contain captured null geodesics. Certain part of neutrinos produced in their interior will be trapped, influencing thus their neutrino luminosity and thermal evolution. The trapping effect has been previously investigated for the internal Schwarzschild spacetimes with the uniform distribution of energy density. Here, we extend our earlier study considering the influence of the cosmological constant ? on the trapping phenomena. Our model for the interior of ECS is based on the internal Schwarzschild-(anti-)de Sitter (S(a)dS) spacetimes with uniform distribution of energy density matched to the external vacuum S(a)dS spacetime with the same cosmological constant. Assuming uniform and isotropic distribution of local neutrino emissivity we determine behavior of the trapping coefficients, i. e., "global" one representing influence on the neutrino luminosity and "local" one representing influence on the cooling process. We demonstrate
ER  -

HLADÍK, Jan, Zdeněk STUCHLÍK, Gabriel TÖRÖK and Martin URBANEC. Neutrino trapping in extremely compact objects described by the internal Schwarzschild-(anti-)de Sitter spacetimes. \textit{General Relativity and Gravitation}. US - Spojené státy americké, 2012, vol.~44, No~6, p.~1393-1417. ISSN~0001-7701. Available from: https://dx.doi.org/10.1007/s10714-012-1346-3.

Detailed Information on Publication Record