Nature of light variations in the symbiotic binary V417 Cen

Details Nature of light variations in the symbiotic binary V417 Cen Nature of light variations in the symbiotic binary V417 Cen

2010-11-24

arxiv.org/abs/1011.5434v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

6 pages, 2 figures, conference poster, to appear in the proceedings of Asymmetric Planetary Nebulae V

Scientific paper

V417 Cen is a D'-type symbiotic system surrounded by a faint, extended asymmetric nebula. Optical photometric observations of this object cover last 20 years. They show strong long term modulation with a period of about 1700 days and amplitude about 1.5 mag in V band, in addition to variations with shorter times-scales and much lower amplitudes. In this presentation we discuss possible reasons of these variations.

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