NDLI: Energy release during disk accretion onto a rapidly rotating neutron star

Please wait, while we are loading the content...

Astronomy Letters : Volume 43

Astronomy Letters : Volume 42

Astronomy Letters : Volume 41

Astronomy Letters : Volume 40

Astronomy Letters : Volume 39

Astronomy Letters : Volume 38

Astronomy Letters : Volume 37

Astronomy Letters : Volume 36

Astronomy Letters : Volume 35

Astronomy Letters : Volume 34

Astronomy Letters : Volume 33

Astronomy Letters : Volume 32

Astronomy Letters : Volume 31

Astronomy Letters : Volume 30

Astronomy Letters : Volume 29

Astronomy Letters : Volume 28

Astronomy Letters : Volume 27

Astronomy Letters : Volume 26

Astronomy Letters : Volume 26, Issue 12, December 2000

Astronomy Letters : Volume 26, Issue 11, November 2000

Spectral variability of the X-ray pulsar Hercules X-1

Energy release during disk accretion onto a rapidly rotating neutron star

A preliminary version of a catalog of high-low-mass X-ray binaries

Oscillation structure of gamma-ray bursts and their possible origin

Peculiarities of the plasma mechanism of radio emission from late-type stars

An axisymmetric magnetohydrodynamic model for the interaction of the solar wind with the local interstellar medium

A simple analytic model of reconnection in a high-temperature turbulent sheet

Astronomy Letters : Volume 26, Issue 10, October 2000

Astronomy Letters : Volume 26, Issue 9, September 2000

Astronomy Letters : Volume 26, Issue 8, August 2000

Astronomy Letters : Volume 26, Issue 7, July 2000

Astronomy Letters : Volume 26, Issue 6, June 2000

Astronomy Letters : Volume 26, Issue 5, May 2000

Astronomy Letters : Volume 26, Issue 4, April 2000

Astronomy Letters : Volume 26, Issue 3, March 2000

Astronomy Letters : Volume 26, Issue 2, February 2000

Astronomy Letters : Volume 26, Issue 1, January 2000

Energy release during disk accretion onto a rapidly rotating neutron star

Content Provider	Springer Nature Link
Author	Sibgatullin, N. R. Sunyaev, R. A.
Copyright Year	2000
Abstract	The energy release L $_{s}$ on the surface of a neutron star (NS) with a weak magnetic field and the energy release L $_{d}$ in the surrounding accretion disk depend on two independent parameters that determine its state (for example, mass M and cyclic rotation frequency f) and is proportional to the accretion rate. We derive simple approximation formulas illustrating the dependence of the efficiency of energy release in an extended disk and in a boundary layer near the NS surface on the frequency and sense of rotation for various NS equations of state. Such formulas are obtained for the quadrupole moment of a NS, for a gap between its surface and a marginally stable orbit, for the rotation frequency in an equatorial Keplerian orbit and in the marginally stable circular orbit, and for the rate of NS spinup via disk accretion. In the case of NS and disk counterrotation, the energy release during accretion can reach $$0.67\dot Mc^2 $$ . The sense of NS rotation is a factor that strongly affects the observed ratio of nuclear energy release during bursts to gravitational energy release between bursts in X-ray bursters. The possible existence of binary systems with NS and disk counterrotation in the Galaxy is discussed. Based on the static criterion for stability, we present a method of constructing the dependence of gravitational mass M on Kerr rotation parameter j and on total baryon mass (rest mass) m for a rigidly rotating neutron star. We show that all global NS characteristics can be expressed in terms of the function M(j, m) and its derivatives. We determine parameters of the equatorial circular orbit and the marginally stable orbit by using M(j, m) and an exact solution of the Einstein equations in a vacuum, which includes the following three parameters: gravitational mass M, angular momentum J, and quadrupole moment Ф$_{2}$. Depending on Ф$_{2}$, this solution can also be interpreted as a solution that describes the field of either two Kerr black holes or two Kerr disks.
Starting Page	699
Ending Page	724
Page Count	26
File Format	PDF
ISSN	10637737
Journal	Astronomy Letters
Volume Number	26
Issue Number	11
e-ISSN	15626873
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2000-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	neutron stars luminosity disk accretion X-ray bursters Astronomy Astrophysics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Energy release on the surface of a rapidly rotating neutron star during disk accretion: A thermodynamic approach

Nodal and periastron precession of inclined orbits in the field of a rapidly rotating neutron star

The formation of X-ray radiation in a boundary layer during disk accretion onto a neutron star

Spread of matter over a neutron-star surface during disk accretion: Deceleration of rapid rotation

Energy Release During Disk Accretion onto a Rapidly Rotating Neutron Star

Numerical modeling of clump accretion onto neutron star

General relativistic spectra of accretion discs around rapidly rotating neutron stars: effect of light bending

Accretion of neutral hydrogen and helium onto a neutron star. The X-ray and gamma-ray radiation of cool neutron stars

Disk luminosity and angular momentum for accreting, weak field neutron stars in the 'slow' rotation approximation

Energy release during disk accretion onto a rapidly rotating neutron star

Similar Documents

Energy release on the surface of a rapidly rotating neutron star during disk accretion: A thermodynamic approach

Nodal and periastron precession of inclined orbits in the field of a rapidly rotating neutron star

The formation of X-ray radiation in a boundary layer during disk accretion onto a neutron star

Spread of matter over a neutron-star surface during disk accretion: Deceleration of rapid rotation

Energy Release During Disk Accretion onto a Rapidly Rotating Neutron Star

Numerical modeling of clump accretion onto neutron star

General relativistic spectra of accretion discs around rapidly rotating neutron stars: effect of light bending

Accretion of neutral hydrogen and helium onto a neutron star. The X-ray and gamma-ray radiation of cool neutron stars

Disk luminosity and angular momentum for accreting, weak field neutron stars in the 'slow' rotation approximation

Energy release during disk accretion onto a rapidly rotating neutron star