Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.218..185d&link_type=abstract
In ESA Fourth European IUE Conf. p 185-186 (SEE N84-35135 24-88)
Astronomy and Astrophysics
Astronomy
Elliptical Galaxies, Far Ultraviolet Radiation, Galactic Clusters, Stellar Luminosity, Spectral Energy Distribution, Stellar Temperature, Ultraviolet Astronomy
Scientific paper
Ultraviolet bright stars in 7 galactic globular clusters were observed with the IUE in the low dispersion mode between 1150 and 3000 A. The stars are: BS in 47 Tuc, vZ1128 in M3, UHB in M5, B29 and IV-52 in M13, I-33 im M10, ROB162 in NGC6397, and K559, K648 and K996 in M15. The spectral energy distributions are used to derive effective temperatures and stellar luminosities. Such stars produce slightly less than 1% of cluster luminosity. Their contribution to the cluster UV intensity varies from 3% at 3300A to 50% at 1200A. In one cluster 60% of the total 1550A intensity comes from the single sdO star.
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