Gravitationally collapsing stars in f(R) gravity

The gravitational dynamics of a collapsing matter configuration which is simultaneously radiating heat flux is studied in f ( R ) gravity. Three particular functional forms in f ( R ) gravity are considered to show that it is possible to envisage boundary conditions such that the end state of the co...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2021-04, Vol.81 (4), p.1-13, Article 273
Hauptverfasser:	Jaryal, Suresh C., Chatterjee, Ayan
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Boundary conditions Configurations Elementary Particles Energy Gravitational waves Gravity Hadrons Heat flux Heavy Ions Measurement Science and Instrumentation Neutron stars Nuclear Energy Nuclear Physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Regular Article – Theoretical Physics Singularities Spacetime Stars & galaxies String Theory Theory of relativity
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Beschreibung
Zusammenfassung:	The gravitational dynamics of a collapsing matter configuration which is simultaneously radiating heat flux is studied in f ( R ) gravity. Three particular functional forms in f ( R ) gravity are considered to show that it is possible to envisage boundary conditions such that the end state of the collapse has a weak singularity and that the matter configuration radiates away all of its mass before collapsing to reach the central singularity.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-021-09079-8