Mathematics – Logic
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105.1313c&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 105, no. 4, p. 1313-1317.
Mathematics
Logic
26
Brightness Distribution, Dwarf Galaxies, Starburst Galaxies, Stellar Spectrophotometry, Wolf-Rayet Stars, Astronomical Models, Astronomical Photometry, Carbon Stars, Elliptical Galaxies, Star Formation
Scientific paper
We present B, V, and emission-line CCD images of the Wolf-Rayet galaxy He 2-10. The broad band images reveal the galaxy to consist of two starburst regions at the center of an elliptical stellar envelope about 10 times their size, with a major axis diameter of approximately 3.8 kpc. Previous imaging detected only the starburst regions, leading to the erroneous description of the object as an interacting pair. Morphologically, He 2-10 resembles the majority of blue compact dwarf galaxies (BCDGs), some of which also show Wolf-Rayet features in their spectra. The lack of nearby neighbors to He 2-10 suggests that its star formation is proceeding stochastically, rather than as the result of interaction, and its morphological similarity to other BCDGs suggests that all such galaxies may pass through a Wolf-Rayet phase. The similarity of the outer regions of He 2-10 and other BCDGs to normal dwarf ellipticals also supports models in which the former evolve into the latter.
Corbin Michael R.
Korista Kirk T.
Vacca William D.
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