Accretion disks around neutron and strange stars in R + aR {sup 2} gravity

Journal Article · Mon Aug 01 00:00:00 EDT 2016 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2016/08/061· OSTI ID:22679486

Staykov, Kalin V.; Yazadjiev, Stoytcho S. ^[1]

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1. Department of Theoretical Physics, Faculty of Physics, Sofia University, 5 James Boucher Blvd., Sofia 1164 (Bulgaria)

We study the electromagnetic spectrum of accretion disks around neutron and strange stars in R + aR {sup 2} gravity. Both static and rapidly rotating models are investigated. The results are compared with the General Relativistic results. We found difference between the results in both theories of about 50% for the electromagnetic flux and about 20% in the luminosity for models with equal mass and angular velocity in both theories. The observed differences are much lower for models rotating with Keplerian velocity and with equal masses.

• OSTI ID: 22679486
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 08; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCRETION DISKS
ANGULAR VELOCITY
COMPARATIVE EVALUATIONS
GRAVITATION
LUMINOSITY
MASS
NEUTRON STARS
QUANTUM GRAVITY
RELATIVISTIC RANGE
SIMULATION
SPECTRA
STARS