The Radial Velocity Precision of Fiber‐fed Spectrographs
نویسندگان
چکیده
منابع مشابه
The Radial Velocity Precision of Fiber-fed Spectrographs
We have measured the radial velocities of five 51 Peg-type stars and one star known to be constant in velocity. Our measurements, on 20 Å centered at 3947 Å, were conventional using Th/Ar comparison spectra taken every 20 or 40 minutes between the stellar exposures. Existing IRAF routines were used for the reduction. We find σRV ≤ 20 m s−1, provided 4 measurements (out of 72) with residuals > 5...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of the Pacific
سال: 2003
ISSN: 0004-6280,1538-3873
DOI: 10.1086/375521