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Rotational Velocities of Late-Type Stars
Publications of the Astronomical Society of the Pacific, 1997A calibration based on the results of Gray has been used to determine projected rotational velocities for 133 bright stars with spectral types of F, G, or K, most of which appear in {The Bright Star Catalogue}. The vast majority have {v} sin {i} ≤q 10 km s-1 and, thus, are slow rotators.
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Outer Atmospheres of Late-Type Stars
1981I will attempt to summarize our limited understanding of the outer atmospheres of red giants by describing recent important observational results concerning chromospheres and coronae in late-type stars and how red giants fit into the emerging picture.
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Health insurance status and cancer stage at diagnosis and survival in the United States
Ca-A Cancer Journal for Clinicians, 2022Jingxuan Zhao +2 more
exaly
ROSAT Observations of Late-Type Stars
1993I will review results from X-ray observations of late-type stars in the ROSAT all-sky survey as well as in the ROSAT pointing program. The various background components and the resulting sensitivity of the all-sky survey will be discussed. Among the scientific issues covered are coronal dividing lines, hybrid stars and X-ray microflares.
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Ages of Spotted Late-Type Stars
1991It is shown that 87% of spotted single late-type field stars belong to the young disc and Local Association population with ages from 107 to 109 year. A comparison of photometric periods of T Tau-type, cluster, and single field stars confirms that the period difference is largest in the stars with ages of 107 – 108 year.
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