Identification of DQ Serpentis and DT Serpentis as symbiotic stars

Details Identification of DQ Serpentis and DT Serpentis as symbiotic stars Identification of DQ Serpentis and DT Serpentis as symbiotic stars

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26as..124...57c&link_type=abstract

A & A Supplement series, Vol. 124, July 1997, 57-60.

Astronomy and Astrophysics

Astronomy

6

Stars: Binaries: Symbiotic, Stars: Emission Line, Stars: Dq Ser, Dt Ser

Scientific paper

Optical and near infrared spectroscopy of the stars DQ Ser and DT Ser are presented. DQ Ser shows a late-type continuum (M3 $-$ M5) with emission lines of Balmer series, HeI, HeII, [OIII], OI and CaII triplet while DT Ser presents a earlier spectral type with emission of Balmer lines, HeI, HeII and [OIII]. DT Ser is a faint $V=15.4$ star 5 arcsec from a $V=12.8$ G companion. We suggest it to be a yellow symbiotic star. Based on observations made at Laboratorio Nacional de Astrofisica/CNPq, Brazil.

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