UBV photometry of faint globular clusters

Details UBV photometry of faint globular clusters UBV photometry of faint globular clusters

Dec 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975aj.....80.1031r&link_type=abstract

Astronomical Journal, vol. 80, Dec. 1975, p. 1031-1036. Research supported by the National Research Council of Canada.

Astronomy and Astrophysics

Astronomy

22

Astronomical Photometry, Globular Clusters, Interstellar Extinction, Ubv Spectra, Giant Stars, Late Stars, Luminous Intensity, Stellar Radiation, Tables (Data)

Scientific paper

Integrated photometry in the UBV system is reported for 37 faint globular clusters for which previous data were either fragmentary or lacking. The majority of these objects are highly reddened clusters close to the galactic center, such as NGC 6440, IC 1276, and Terzan 5, or very loose aggregates, such as IC 4499, Pal 12, and Pal 13. The following results are established: (1) preliminary analysis of the reddenings is consistent with E(U-B)/E(B-V) of about 1.0 for late-type clusters; (2) the reddening and distance of the infrared cluster Ter 5 are determined; (3) NGC 6749 may be a highly reddened galactic star cluster; and (4) the peculiar colors of NGC 7492 and Pal 13 are due to a deficiency in red giants.

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