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II/66 A Catalogue of observations in H alpha (Ducati, 1981)
The following files can be converted to FITS (extension .fit .fiz or .fiZ)
obs.dat means.dat refs.dat
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Query from: http://vizier.cds.unistra.fr/cgi-bin/VizieR?-source=II/66
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-r--r--r-- 1 cats archive 48279 May 12 1997 means.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 274365 May 12 1997 obs.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 2329 May 12 1997 refs.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :II/66 A Catalogue of observations in H alpha (Ducati, 1981)
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A Catalogue of observations in H alpha
Ducati J.R.
<Astron. Astroph. Suppl. 45, 119, (1981)>
=1981A&AS...45..119D
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ADC_Keywords: Photometry, H-alpha ; Equivalent widths
Abstract:
This catalogue contains 4095 published observations of the
quantitative observations of Halpha for 2700 stars. These
observations were collected from values published between
1949 and 1980.
The Halpha index was reduced to a common system described by
Strauss & Ducati (1981A&AS...44..337S); the values of the
original index can be retrieved with a linear transformation
(cc = correlation coefficient):
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References a b cc lower upper Spectral range
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2 1.401 -1.604 0.972 1.050 1.170
10 1.33 -2.4 0.000
13 1.526 0.130 0.992 2.910 3.300
14,36 0.343 0.814 0.949 1.400 O B A0
14,36 0.269 0.969 0.972 1.470 A1 F G K M
20,21,22,23,37 0.39 -0.55 1.200
24,25 1.35 -1.48 0.922 1.020 1.170
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