H II regions in Sextans A

Details H II regions in Sextans A H II regions in Sextans A

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...260...77a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 260, no. 1-2, p. 77-81.

Astronomy and Astrophysics

Astrophysics

12

Dwarf Galaxies, H Alpha Line, H Ii Regions, Irregular Galaxies, Astronomical Photometry, Star Distribution

Scientific paper

CCD narrow-band H-alpha photometry of the Sextans A Local Group dwarf irregular galaxy is presented. Fourteen H II regions have been recorded. Their identification charts, H-alpha luminosities and sizes are given, and their luminosity and size distributions are discussed. Twenty-five stars with masses between 15 and 30 solar masses, distributed following the IMF of Sextans A, are enough to produce the ionization observed in the galaxy.

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