2003ApJ...584L..83M

Query : 2003ApJ...584L..83M

2003ApJ...584L..83M - Astrophys. J., 584, L83-L86 (2003/February-3)

Origin and interpretation of kilohertz quasi-periodic oscillations from strange stars in an X-ray binary system: theoretical hydrodynamical description.

MUKHOPADHYAY B., RAY S., DEY J. and DEY M.

Abstract (from CDS):

We model and interpret kilohertz quasi-periodic oscillations (QPOs) from the hydrodynamical description of an accretion disk around a rapidly rotating compact strange star. The higher QPO frequency is described by the viscous effects of an accretion disk leading to shocks, while the lower one is taken to be the Keplerian motion of the accreting matter. Comparing our results with the observations for two of the fastest rotating compact stellar candidates, namely, 4U 1636-53 and KS 1731-260, we find that they match to a very good approximation and thus interpret them as strange stars.

Abstract Copyright: ∼

Journal keyword(s): Accretion, Accretion Disks - Hydrodynamics - Shock Waves - Stars: Individual: Alphanumeric: KS 1731-260 - Stars: Individual: Alphanumeric: 4U 1636-53 - Stars: Neutron - X-Rays: Binaries

CDS comments: GS 339-4 is a misprint for GX 339-4

Simbad objects: 5

Full paper

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Number of rows : 5

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	V* GU Mus	HXB	11 26 26.5961559600	-68 40 32.877752952						K3V-K7V	734	1
2	V* V801 Ara	LXB	16 40 55.5976953528	-53 45 04.948107156	17.50	18.20	17.5		17.07	~	921	0
3	V* V821 Ara	LXB	17 02 49.3876391280	-48 47 23.087954544					15.322	~	2237	0
4	NAME Slow Burster	LXB	17 31 58.0	-33 49 58			15.50			~	865	1
5	KS 1731-260	LXB	17 34 13.46	-26 05 18.6				22.8	20.9	~	437	0

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