Brackett-gamma mapping observation of RCW38

Details Brackett-gamma mapping observation of RCW38 Brackett-gamma mapping observation of RCW38

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.228..721m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 228, Oct. 1, 1987, p. 721-727.

Astronomy and Astrophysics

Astronomy

3

Astronomical Maps, H Ii Regions, Hydrogen Clouds, Continuous Radiation, Distance, Grain Size, Hydrogen Ions, Reflection Nebulae

Scientific paper

A Brackett-γ map has been obtained in the bright southern H II region RCW 38. The equivalent width of Brackett-γ near the centre is fairly constant and consistent with that expected from recombination theory. A small equivalent width in the periphery of the H II region indicates the presence of some additional continuum emission source, which might be explained by the small grain model applied to reflection nebulae. The existence of a cluster of stars around the central exciting object which has so far been identified as IRS2 is suggested by the comparison of the continuum flux with previous multi-aperture data.

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