On the variable spectrum of HD 45677 (FS Canis Majoris)

Details On the variable spectrum of HD 45677 (FS Canis Majoris) On the variable spectrum of HD 45677 (FS Canis Majoris)

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...328..339i&link_type=abstract

Astronomy and Astrophysics, v.328, p.339-342 (1997)

Astronomy and Astrophysics

Astrophysics

5

Stars: Individual: Hd 45677, Stars: Be, Stars: Peculiar, Line: Formation, Line: Profiles

Scientific paper

{ We have studied high-resolution optical spectra of the peculiar B[e] star HD 45677 (FS CMa) observed during 3 nights in October 1995. The main results of our analysis can be summarized as follows: (1) The complex and variable profiles of Hβ indicate the presence of matter outflow. Three blue-shifted absorption components have been detected. (2) The inverse P Cygni red-shifted profiles have been observed in the Mgii 4481 Angstroms line indicating the infall of cool gas onto the star. (3) These observations confirm our previous estimate (Israelian et al. 1996) for the projected rotational velocity of the order of 70 km s(-1) . (4) Accreting gas collides with the atmosphere and/or inner disk material producing the so-called filling in by emission effect and/or extended red wings of Hei 5876 Angstroms line.}

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