The nature of Beta Lyrae and its radio emission

Details The nature of Beta Lyrae and its radio emission The nature of Beta Lyrae and its radio emission

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....63..285j&link_type=abstract

Astronomy and Astrophysics, vol. 63, no. 1-2, Feb. 1978, p. 285-287.

Astronomy and Astrophysics

Astronomy

8

Eclipsing Binary Stars, Hydrogen Ions, Interstellar Gas, Radio Astronomy, Stellar Models, Black Holes (Astronomy), H Alpha Line, H Ii Regions, Radio Emission

Scientific paper

The H II region surrounding Beta Lyr and responsible for its radio emission has been modeled. The region has a radius of 50 AU, a temperature of 10,000 K, and an electron density of 10 million per cu cm. Some 237 suns of Lyman continuum radiation are needed to excite the region. To provide this amount, it is concluded that the secondary is a B2.5 V or B5 II star; it cannot be a black hole.

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