/ftp/cats/J/A%252bAS/140/79



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J/A+AS/140/79               Radii of 22 galactic Cepheids         (Imbert, 1999)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	object.dat table1.dat
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drwxr-xr-x 14 cats archive 4096 Jan 29 2012 [Up] drwxr-xr-x 2 cats archive 4096 Dec 15 2013 [TAR file] -rw-r--r-- 1 cats archive 329 Nov 19 1999 .message -r--r--r-- 1 cats archive 4043 Nov 19 1999 ReadMe -r--r--r-- 1 cats archive 726 Sep 16 1999 object.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 57381 Sep 16 1999 table1.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 90793 Sep 16 1999 table1.ps -r--r--r-- 1 cats archive 46798 Sep 16 1999 table1.tex
Beginning of ReadMe : J/A+AS/140/79 Radii of 22 galactic Cepheids (Imbert, 1999) ================================================================================ Determination of the radii of Cepheids. V. Radial velocities and dimensions of 22 galactic Cepheids (Determination des rayons de Cepheides. V. Vitesses radiales et dimensions de 22 Cepheides galactiques) Imbert M. <Astron. Astrophys. Suppl. Ser. 140, 79 (1999)> =1999A&AS..140...79I (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Stars, variable ; Radial velocities Keywords: stars: Cepheids - stars: fundamental parameters - techniques: radial velocities Abstract: We present radial velocity data for 22 galactic Cepheid stars obtained with Coravel spectrometer. Continuous observation over several years has enabled us to obtain 852 individual velocities covering all the phases of the pulsation. The mean number of measurements per star is 39, ranging from 20 to 113. For each star radial velocity versus phase diagrams have been fitted by analytical relation, and the stellar radius variation has been derived by integration of this relation over the whole period. Using recent ubv photometry of the literature and velocity curves, we have calculated the radii of the stars using a method based on the Baade-Wesselink concept. For these 22 Cepheids we give a linear logarithmic period-radius relation with a range of 2,4 to 45 days.

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