Spectroscopic Observations of Some D-Type Symbiotic Stars

Details Spectroscopic Observations of Some D-Type Symbiotic Stars Spectroscopic Observations of Some D-Type Symbiotic Stars

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasp..108..972g&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.108, p.972-979

Astronomy and Astrophysics

Astronomy

15

Stars: Symbiotic, Stars: Atmospheres

Scientific paper

Observations of one D'- and five D-type symbiotic stars are presentd: AS 201, He 2-106, He 2-127, He 2-171, AS 210, and Hen 1591. Several parameters are obtained for each object: interstellar reddening as determined from the Balmer decrement, considering optical depth effects; electron densities, estimated for adopted electron temperatures of 12,000 and 15,000 K; and helium abundances, also determined considering optical depth effects. Circumstellar contributions to reddening are estimated. The positions and motions of these objects in a diagnostic diagram presented by the authors are shown and discussed. (SECTION: Stars)

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