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Browsing by Subject "Stars: Binaries: Close"

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Limits to the Mass and the Radius of the Compact Star in SAX J1808.4-3658 and Their Implications

Bhattacharyya, S (American Astronomical Society, 2001-06)

We show that a survey of equations of state and observations of X-ray pulsations from SAX J1808.4-3658 give 2.27 Msolar as the upper limit of the compact star mass. The corresponding upper limit of the radius comes out to ...
Photometric elements, absolute dimensions and evolutionary status of the eclipsing binary HU Tauri (HR 1471)

Parthasarathy, M; Sarma, M. B. K; Vivekananda, Rao P (The European Southern Observatory, 1995-05)

The photometric elements of HU Tauri are derived from an analysis of its blue and visual light curves using the Wilson & Devinney (1971) light curve synthesis method. The photometric elements suggest that HU Tauri is a ...
Possible signatures for strange stars in stellar X-ray binaries

Datta, B; Thampan, A. V; Bombaci, I (European Southern Observatory, 2000-03)

Kilohertz quasi-periodic brightness oscillations (kHz QPOs) observed in certain X-ray burst sources may represent Keplerian frequencies in the inner regions of the accretion disk in such systems. If this assumption is ...
The UV (IUE) spectrum of the planetary nebula PC 11 (HD 149427)

Parthasarathy, M; García-Lario, P; Pottasch, S. R; de Martino, D; Surendiranath, R (European Southern Observatory, 2000-03)

The UV spectrum of PC 11 is found to show variations in the strength of the O III] 1666Å , N III] 1750Å and C III] 1909Å emission lines. The detection of continuum emission in the wavelength interval 2650Å to 3200Å indicates ...

Browsing by Subject "Stars: Binaries: Close"

Browsing by Subject "Stars: Binaries: Close"

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