AM CVn Systems as Optical, X-Ray and GWR Sources
نویسندگان
چکیده
منابع مشابه
Short-period AM CVn systems as optical, X-ray and gravitational wave sources
We model the population of AM CVn systems in the Galaxy and discuss the detectability of these systems with optical, X-ray and gravitational wave detectors. We concentrate on the short period (P < 1500 s) systems, some of which are expected to be in a phase of direct impact accretion. Using a self-consistent model for the star formation history and radial distribution of stars in the Galaxy plu...
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3 RESUMEN ABSTRACT We discuss the model for the Galactic sample of the AM CVn systems with P orb ≤ 1500 s that can be detected in the optical and/or X-ray bands and may be resolved by the gravitational waves detector LISA. At 3 ∼ < P ∼ < 10 min all detectable systems are X-ray sources. At P ∼ > 10 min most systems are only detectable in the V-band. About 30% of the X-ray sources is also detecta...
متن کاملAM CVn stars
I review our observational and theoretical knowledge of AM CVn stars, focusing on recent developments. These include newly discovered systems, the possibility that two recently discovered extremely short period objects are AM CVn stars and an update on X-ray, UV an optical studies. Theoretical advances include the study of the details of both the donor and accretor, and the physics of the heliu...
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Despite much observational and theoretical effort little is presently known about the nature of the luminous nonnuclear X-ray sources which appear to largely surpass the Eddington limit of a few solar masses. Here we present first results of our OHP/ESO/CFHT optical survey of the environments of variable ultraluminous X-ray sources (ULX) in nearby galaxies. At the position of several ULX we fin...
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The AM CVn systems are a class of He-rich, post-period minimum, semidetached, ultracompact binaries. Their long-term light curves have been poorly understood due to the few systems known and the long (hundreds of days) recurrence times between outbursts. We present combined photometric light curves from the Lincoln Near Earth Asteroid Research, Catalina Real-Time Transient Survey, and Palomar T...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 2004
ISSN: 0252-9211
DOI: 10.1017/s0252921100152133