Wasilewski 72 - an extragalactic H II region

Details Wasilewski 72 - an extragalactic H II region Wasilewski 72 - an extragalactic H II region

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104..189o&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, March 1992, p. 189, 190.

Astronomy and Astrophysics

Astronomy

1

Emission Spectra, H Ii Regions, Radio Galaxies, Red Shift, Charge Coupled Devices, Spectrum Analysis

Scientific paper

Was 72 is established as an extragalactic H II region. The reddening of Was 72, as judged from the H-alpha/H-beta/H-gamma ratios, is very nearly zero, and the relative intensity of H-delta suggests a nonzero reddening. It is concluded that Was 72 is either very young or is dominated by very young stars; the age of the stars which dominate its optical spectrum is estimated at not more than 3 x 10 exp yr.

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