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1999ApJ...527L..51L - Astrophys. J., 527, L51-L54 (1999/December-2)
On the nature of the compact star in 4U 1728-34.
LI X.-D., RAY S., DEY J., DEY M. and BOMBACI I.
Abstract (from CDS):
The discovery of kilohertz quasi-periodic oscillations (kHz QPOs) in low-mass X-ray binaries (LMXBs) with the Rossi X-Ray Timing Explorer has stimulated extensive studies of these sources. Recently, Osherovich & Titarchuk suggested a new model for kHz QPOs and the related correlations between kHz QPOs and low-frequency features in LMXBs. Here we use their results to study the mass-radius relation for the atoll source 4U 1728-34. We find that, if this model is correct, 4U 1728-34 is possibly a strange star rather than a neutron star.
Abstract Copyright: ∼
Journal keyword(s): Accretion, Accretion Disks - Stars: Individual: Alphanumeric: 4U 1728-34 - Stars: Neutron - X-Rays: Stars
Simbad objects: 7
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