HD 224869: an Optical Companion to WZ Cassiopeiae
نویسندگان
چکیده
منابع مشابه
A High-Eccentricity Low-Mass Companion to HD 89744.
HD 89744 is an F7 V star with a mass of 1.4 M middle dot in circle, an effective temperature of 6166 K, an age of 2.0 Gyr, and metallicity &sqbl0;Fe&solm0;H&sqbr0;=0.18. The radial velocity of the star has been monitored with the Advanced Fiber-Optic Echelle spectrograph at the Whipple Observatory since 1996, and evidence has been found for a low-mass companion. The data were complemented by ad...
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The magnetic, chemically peculiar A-star HR 710 (HD 15144, ADS 1849A, AB Cet) has a close companion in a nearly circular orbit. Its 3-d period is unusually short for such stars. The system emits moderately hard X-rays, which likely come from a white dwarf secondary (ADS 1849Ab). The Sr II spectrum is very strong, and the resonance lines show similar core-nib structure to the stronger Ca K line....
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of the Pacific
سال: 1955
ISSN: 0004-6280,1538-3873
DOI: 10.1086/126798