IUE spectra of clumpy irregular galaxies

Details IUE spectra of clumpy irregular galaxies IUE spectra of clumpy irregular galaxies

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.198..825b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 198, Mar. 1982, p. 825-831. Research supported by the Consiglio Naziona

Astronomy and Astrophysics

Astronomy

32

Galactic Clusters, Galactic Structure, Iue, Stellar Spectrophotometry, Ultraviolet Astronomy, Ultraviolet Spectra, Absorption Spectra, Data Smoothing, Early Stars, H Ii Regions, Line Spectra, Milky Way Galaxy, Radiant Flux Density, Slits, Spectral Resolution, Stellar Evolution

Scientific paper

IUE spectra at short wavelengths were obtained for two clumpy irregular galaxies, Mkn 8 and Mkn 325. Clumps could be resolved across the slit. Statistics now available on 10 clumps show that, on average, each clump radiates 100 times more at 155 nm than the giant H II region 30 Doradus and contains 0.00007 early-type stars. This confirms the hypothesis that clumps may be hyperactive H II complexes and that clumpy irregulars are galaxies in which star formation occurs on an exceptional scale.

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