Optical spectroscopy of HD 199178 - Velocity and activity

Details Optical spectroscopy of HD 199178 - Velocity and activity Optical spectroscopy of HD 199178 - Velocity and activity

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....92..673h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 92, Sept. 1986, p. 673-677.

Astronomy and Astrophysics

Astronomy

23

Giant Stars, Late Stars, Radial Velocity, Stellar Activity, Stellar Spectrophotometry, Visible Spectrum, Absorption Spectra, Balmer Series, Binary Stars, Emission Spectra, Stellar Rotation

Scientific paper

Spectroscopic observations of HD 199178, obtained at 390-900 nm using the 1.6-m telescope at Black Moshannon Observatory during April-October 1985, are reported. One-dimensional spectra are derived and used to calculate radial and rotational velocities. Rotational velocity of 80 km/s (suggesting a coalesced binary) and no variation greater than 2.0 km/s in the heliocentric radial velocity are found. The emission and absorption features are attributed to a combination of a relatively steady global component and transient events, with evidence of a significant hot corona.

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