X-ray properties of symbiotic stars. II. Systems with colliding winds.

Details X-ray properties of symbiotic stars. II. Systems with colliding winds. X-ray properties of symbiotic stars. II. Systems with colliding winds.

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...319..201m&link_type=abstract

Astronomy and Astrophysics, v.319, p.201-210

Astronomy and Astrophysics

Astrophysics

64

Binaries: Symbiotic, Stars: Individual: Eg And, Stars: Individual: Pu Vul, Stars: Individual: Hen 3-1591, Stars: Mass-Loss, X-Rays: Stars

Scientific paper

60% of the known galactic symbiotic stars are sufficiently X-ray bright to be detected in pointed ROSAT PSPC observations. We present observations of 16 symbiotic stars. We encounter three classes of pulse height distibutions: α) supersoft emission from the atmosphere of the hot star, β) emission from an optically thin plasma with a temperature of a few 10^6^K, and γ) even harder emission, as from an accreting neutron star. In the present Paper we analyze the objects of type β in more detail. We find plasma temperatures ranging from 3x10^6^K to 15x10^6^K and luminosities from 2x10^-4^Lsun_ to 0.4Lsun_.

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