The peculiar variable V838 Monocerotis

Details The peculiar variable V838 Monocerotis The peculiar variable V838 Monocerotis

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...416.1107k&link_type=abstract

Astronomy and Astrophysics, v.416, p.1107-1115 (2004)

Astronomy and Astrophysics

Astrophysics

37

Stars: Variables: General, Stars: Novae, Cataclysmic Variables, Stars: Individual: V838 Mon

Scientific paper

Spectroscopic observations of the peculiar variable V838 Mon during the period from the second light outburst until the fast dimming are presented. We describe high resolution (R≈60 000) high S/N spectra obtained a day before the second light maximum and low resolution (R≈6000) spectra covering the whole period. The temporal run of intensities and radial velocities of various lines is presented. Using Na I D IS lines we determine the reddening distance of V838 Mon d>3.1 kpc, and kinematic distance d>4 kpc. We estimate that V838 Mon is slightly metal deficient but otherwise has a quite solar-like chemical composition except for enhanced abundances of Li, Ba and La.

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