Diagnostics of Neutron Star and Black Hole X‐Ray Binaries with X‐Ray Shot Widths | Zendy

Hua Feng | Zendy; T. P. Li | Zendy; ShuangNan Zhang | Zendy

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Diagnostics of Neutron Star and Black Hole X‐Ray Binaries with X‐Ray Shot Widths

Author(s) -

Hua Feng,

T. P. Li,

ShuangNan Zhang

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/382948

Subject(s) - neutron star , physics , astrophysics , black hole (networking) , light curve , accretion (finance) , x ray , x ray binary , star (game theory) , cutoff , position (finance) , optics , computer network , routing protocol , routing (electronic design automation) , quantum mechanics , computer science , link state routing protocol , finance , economics

A statistic w, the differential coefficient of the mean absolute differenceof an observed lightcurve, is proposed for timescale analysis of shot widths.The shortest width of random shots can be measured by the position of the lowercut-off in the timescale spectrum of w. We use the statistic to analyze X-raylightcurves from a sample of neutron star and black hole binaries and theresults show that the timescale analysis can help us distinguish betweenneutron star binaries and black hole binaries. The analysis can further revealthe structure and dynamics of accretion disks around black holes.Comment: 17 pages, 6 figures, accepted by Ap

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