Spectroscopic Observations of Seven Suspected Symbiotic Stars

Details Spectroscopic Observations of Seven Suspected Symbiotic Stars Spectroscopic Observations of Seven Suspected Symbiotic Stars

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aj....116.1971p&link_type=abstract

The Astronomical Journal, Volume 116, Issue 4, pp. 1971-1976.

Astronomy and Astrophysics

Astronomy

6

Stars: Binaries: Symbiotic, Stars: Emission-Line, Be

Scientific paper

We present new spectroscopic observations between 3100 and 5100 Å and 3500 and 7500 Å of the stars Hen 3-461, Hen 3-653, Hen 2-156, V704 Cen, Mac 1-17, V3804 Sgr, and V2905 Sgr. Except for V3804 Sgr, which presents a flat spectrum in the optical range, and V704 Cen, all the objects have late-type continuum spectra, and some have H i, He i, He ii lambda4686, and [O iii] lambda5007 emission lines. All the objects have been previously classified as suspected symbiotic stars. We find that five of them (Hen 3-461, Hen 2-156, Mac 1-17, V3804 Sgr, and V2905 Sgr) are symbiotic stars. The nature of two objects, Hen 3-653 and V704 Cen, is still uncertain despite their symbiotic behavior. We also present a discussion of the nature of each object. Based on observations made with the 1.52 m telescope at the European Southern Observatory (La Silla, Chile) under the agreement with the CNPq-Observatório Nacional, Brazil.

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