A Catalogue of observations in H alpha (Ducati, 1981)

Details A Catalogue of observations in H alpha (Ducati, 1981) A Catalogue of observations in H alpha (Ducati, 1981)

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ycat.2066....0d&link_type=abstract

VizieR On-line Data Catalog: II/66. Originally published in: 1981A&AS...45..119D

Physics

Photometry: H-Alpha, Equivalent Widths

Scientific paper

This catalogue contains 4095 published observations of the quantitative observations of Hα for 2700 stars. These observations were collected from values published between 1949 and 1980. The Hα 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): ----------------------------------------------------------------- References a b cc lower upper Spectral range ----------------------------------------------------------------- 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 ----------------------------------------------------------------- (3 data files).

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