A luminous circumstellar ring in the eclipsing binary RX geminorum

Details A luminous circumstellar ring in the eclipsing binary RX geminorum A luminous circumstellar ring in the eclipsing binary RX geminorum

Jan 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....38..225h&link_type=abstract

Astronomy and Astrophysics, vol. 38, no. 2, Jan. 1975, p. 225-237.

Astronomy and Astrophysics

Astrophysics

12

A Stars, Eclipsing Binary Stars, Light Curve, Stellar Envelopes, Stellar Luminosity, Stellar Spectrophotometry, Electrophotometry, Interstellar Gas, Stellar Mass Ejection, Tables (Data), Ubv Spectra

Scientific paper

On the basis of UBV photometry of the eclipsing binary RX Geminorum, obtained between 1967 and 1971, a photometric solution is obtained which allows for an uneven surface brightness distribution on, gas streaming towards, and circumstellar material around the A-type component. The U-B and B-V at maximum and minimum, the depth of the secondary minimum, and deviations in light from the computed curve indicate the presence of a luminous ring surrounding the A star. This ring is calculated to contain about 0.2 billionths solar mass of matter with a density of about 3 trillion particles per cu cm. There is evidence of a polar hot spot and an equatorial hot spot on the A star.

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