Southern Blue Compact Dwarf Galaxy ESO 105-IG11 II.: Abundance Analysis

Details Southern Blue Compact Dwarf Galaxy ESO 105-IG11 II.: Abundance Analysis Southern Blue Compact Dwarf Galaxy ESO 105-IG11 II.: Abundance Analysis

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jass...13...91s&link_type=abstract

Journal of Astronomy and Space Sciences, vol. 13, no. 2, p. 91-98.

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We present low resolution spectroscopic analysis for a southern blue compact dwarf galaxy ESO 105-IG11. Our low resolution spectroscopic observation confirms that this galaxy is one of the typical blue compact dwarf galaxy. Optical CCD images suggest that ESO 105-IG11 has two active starforming regions near its center which are coincident with its double cores. Abundance analysis from emission lines shows that the determined oxygen abundance is 1/11 of the solar value and the helium abundance, very similar to that of the solar one. However the derived mass fraction of helium is somewhat smaller than that of other BCDs.

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