Radial Velocities of Late-Type Field Subgiant Stars

Details Radial Velocities of Late-Type Field Subgiant Stars Radial Velocities of Late-Type Field Subgiant Stars

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apjs..157..126s&link_type=abstract

The Astrophysical Journal Supplement Series, Volume 157, Issue 1, pp. 126-137.

Astronomy and Astrophysics

Astronomy

3

Stars: Binaries: Spectroscopic, Stars: Late-Type, Techniques: Radial Velocities

Scientific paper

High-dispersion coudé spectra were observed and measured for 43 field subgiants of the G and K spectral types, with the intent of searching for hitherto undiscovered spectroscopic binaries. Statistical analysis of the measurements revealed no definite but two possible new binaries. We present the data and discuss the statistical analysis used to test for new binaries. Additionally, we discuss the techniques for high precision of radial-velocity measurement, and the systematic errors that interfere with that goal.

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