Balmer-line photometry of NGC 4755

Details Balmer-line photometry of NGC 4755 Balmer-line photometry of NGC 4755

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....82..253k&link_type=abstract

Astronomy and Astrophysics, vol. 82, no. 1-2, Feb. 1980, p. 253-255.

Astronomy and Astrophysics

Astrophysics

1

Balmer Series, Early Stars, Electrophotometry, Emission Spectra, Star Clusters, Stellar Spectrophotometry, H Alpha Line, H Beta Line, Open Clusters, Stellar Atmospheres

Scientific paper

To discriminate between emission and nonemission objects in the analysis of a number of polarization observations of stars in the southern open cluster NGC 4755, a comparison of the H alpha and H beta line strengths is made. H alpha and H beta photometric observations are presented for 28 and 33 stars, respectively, in NGC 4755; eight emission line stars are identified. V-magnitude, spectral type, and alpha and beta indices together with standard deviations are included. In general, no significant deviations of the beta indices from those measured by Perry et al. (1976) are found.

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