Coronal Temperature as an Age Indicator

Abstract

The X-ray spectra of late type stars can generally be well fitted by a two temperature component model of the corona. We fnd that the temperature of both components are strong functions of stellar age, although the temperature of the hotter plasma in the corona shows a larger scatter and is probably affected by the activity of stars, such as flares. We confirm the power-law decay of the temperature of the hot plasma, but the temperature of the cool component decays linearly with log (age).

6 pages, 2 figures, typo in published paper: Sana et al. (2006) should be changed as Sana et al. (2007)

References in corpus (4)

• Ages for illustrative field stars using gyrochronology: viability, limitations and errors
• ACIS-I observations of NGC2264. Membership and X-ray properties of PMS stars
• An XMM-Newton view of the young open cluster NGC 6231 III. Optically faint X-ray sources
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Cited by in corpus (5)

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• The Initial Mass Function and the Surface Density Profile of NGC 6231
• The X-ray source content of the XMM-Newton Galactic Plane Survey
• An Optical and Infrared Photometric Study of the Young Open Cluster IC 1805 in the Giant H II Region W4
• The Sejong Open Cluster Survey (SOS). VII. A Photometric Study of the Young Open Cluster IC 1590