New evidence on the nature of the neutron star and accretion flow in VELA X-1 from pulse timing observations

Details New evidence on the nature of the neutron star and accretion flow in VELA X-1 from pulse timing observations New evidence on the nature of the neutron star and accretion flow in VELA X-1 from pulse timing observations

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...283l..53b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 283, Aug. 15, 1984, p. L53-L56.

Astronomy and Astrophysics

Astrophysics

64

Binary Stars, Neutron Stars, Stellar Mass Accretion, Stellar Oscillations, Stellar Rotation, X Ray Stars, Orbital Elements, Radiant Flux Density

Scientific paper

It is believed that variations in the intrinsic pulse frequencies of neutron star X-ray sources reflect changes in the rotation rate of the stellar crust produced by torque originating outside and inside the star. The external torque depends on the flow pattern of the accreting plasma, while the internal torque depends on the state of the interior and its coupling to the crust. Information about the accretion flow and the star itself can, therefore, be obtained on the basis of a study of intrinsic frequency variations. The present investigation is concerned with the results of a detailed study of the 283 s pulsing X-ray star Vela X-1 using pulse timing techniques. It is found that the frequency variations in this source are consistent with the occurrence of a succession of temporally unresolved events which can be characterized mathematically as second-order red noise in the pulse phase.

Affiliated with

Also associated with

No associations

Rating

New evidence on the nature of the neutron star and accretion flow in VELA X-1 from pulse timing observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with New evidence on the nature of the neutron star and accretion flow in VELA X-1 from pulse timing observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New evidence on the nature of the neutron star and accretion flow in VELA X-1 from pulse timing observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1674917