Other
Scientific paper
Aug 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984stin...8519904l&link_type=abstract
Unknown
Other
Astronomical Spectroscopy, Galaxies, Hot Stars, Star Clusters, Star Distribution, Ultraviolet Spectra, Iue, O Stars, Optical Measurement, Spectra, Stellar Evolution
Scientific paper
In order to better understand the nature of star formation processes in amorphous galaxies, short wavelength International Ultraviolet Explorer (IUE) spectra of galaxies NGC 1705 and NGC 1800 were obtained. The IUE data for NGC 1705 were of excellent quality while the low signal-to-noise NGC 1800 observation was useful only as a rough guide to the ultraviolet energy distribution. It was found that NGC 1705 contains a normal mix of OB stars, which is consistent with the nearly constant recent star formation rate inferred from new optical data. The NGC 1800 is likely to have similar properties, and blue galaxies with amorphous structures thus do not show evidence for anomalies in stellar mass distributions. The UV spectra of amorphous galaxies and a variety of other hot extragalactic stellar systems have similar characteristics, which suggests OB stellar populations often are homogeneous in their properties.
Gallacgher J. S.
Hjellming M.
Hunter Deidre Ann
Lamb Susan A.
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