He I 10830 A line observations in compact H II regions

Details He I 10830 A line observations in compact H II regions He I 10830 A line observations in compact H II regions

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...133..313e&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 133, no. 2, April 1984, p. 313-316.

Astronomy and Astrophysics

Astrophysics

2

Astronomical Spectroscopy, H Ii Regions, Infrared Spectra, Interstellar Extinction, Line Spectra, Molecular Clouds, Astronomical Maps, Continuous Spectra, Helium, Interstellar Matter, Radio Spectra, Spectral Energy Distribution

Scientific paper

Observations of the He I 10829-30 Å lines in the compact H II regions W3-IRS1, G45.13+0.14, and W51-IRS2 are presented. Extinction curves for each object are derived by comparing the He I 10829-30 Å line fluxes with those of other lines in the 2 - 4 μm range and with radio continuum measurements. A map of G45 in the He I 10830 Å line shows that the He+ and H+ emitting volumes are essentially equal.

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