An X-ray survey of all nearby late-type giants.

Details An X-ray survey of all nearby late-type giants. An X-ray survey of all nearby late-type giants.

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rftu.proc...49h&link_type=abstract

International Conference on X-ray Astronomy and Astrophysics: Röntgenstrahlung from the Universe, p. 49 - 50

Astronomy and Astrophysics

Astrophysics

X-Ray Surveys: Nearby Stars, X-Ray Surveys: Giants

Scientific paper

The authors have investigated the X-ray luminosity distribution function for late-type giants from ROSAT observations of all nearby (d < 25 pc) G-M giants. Essentially all giants with B-V < 1.2 are X-ray sources with luminosities of some 1027erg s-1, few giants are more X-ray luminous. There is evidence for a minimum X-ray surface flux of the order of ≡100 erg cm-2s-1, which seems to be independent of B-V and is probably not related to pure acoustic heating.

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