A spectrographic study of the symbiotic system HEN 1761

Brandi, E; Barba, R; Garcia, L.; Beltrán, N.

Keywords: STARS: EMISSION-LINES, SYMBIOTIC STARS, STARS: VARIABLE STARS, STARS: INDIVIDUAL: HEN 1761

Abstract

This work presents the results of a spectroscopic study in the optical and near infrared region of the symbiotic star Hen 1761. Relative fluxes and radial velocities of emission and absorption lines are obtained on the basis of low, intermediate and high resolution spectra. Our observations show that this scarcely studied object underwent very important spectroscopic variations in the interval 1990-1995. The observed variations are quite similar to those of symbiotic stars where accretion events on a hot dwarf are responsible for an eruptive behavior. Some of the physical parameters of the system are derived.

Más información

Título de la Revista: Astronomy and Astrophysics Supplement
Volumen: 132
Editorial: EDP
Fecha de publicación: 1998
Página de inicio: 281
Página final: 289
Idioma: English
Notas: ISI