Discovery of the acceleration in the wind emission lines of CI Cam

Details Discovery of the acceleration in the wind emission lines of CI Cam Discovery of the acceleration in the wind emission lines of CI Cam

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1036....1b&link_type=abstract

The Astronomer's Telegram, #1036

Astronomy and Astrophysics

Astronomy

6

Optical, Binaries, Transients, Variables, Stars

Scientific paper

CI Cam (XTE J0421+560) is an X-ray transient and a binary system with the optical companion, which shows the B[e] phenomenon. Its strong all-wavelength outburst occured in 1998 April. The system consists of a B4 III-V star and a possible white dwarf on an eccentric (e = 0.62) orbit with the period of 19.407 day (ATel #416; Astronomy Reports, 2006, V.50, 664). We analysed seventeen echelle spectra (resolution FWHM=0.08-0.21A) taken with Russian 6-m telescope BTA (LYNX and NES spectrographs), CFHT (ESPaDOnS spectrograph), and McDonald 2.1-m (Sandiford spectrograph) and 2.7-m (cs2 spectrograph) telescopes.

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