Infrared observations of dust cloud structure in young R associations - NGC 1333, S68, and NGC 7129

Details Infrared observations of dust cloud structure in young R associations - NGC 1333, S68, and NGC 7129 Infrared observations of dust cloud structure in young R associations - NGC 1333, S68, and NGC 7129

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...278..156h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 278, March 1, 1984, p. 156-169.

Astronomy and Astrophysics

Astrophysics

122

Cosmic Dust, Infrared Stars, Molecular Clouds, Pre-Main Sequence Stars, Stellar Evolution, A Stars, B Stars, Early Stars, Emission Spectra, Infrared Photometry, Interstellar Matter, Radio Spectra, Reflection Nebulae, Stellar Luminosity, Stellar Spectrophotometry

Scientific paper

Infrared photometry is presented from 1 to 100 microns of the major sources of luminosity in three regions of star formation which contain young B and A, but not O, stars. The reflection nebulae in all three regions are sources of 100-micron emission similar to previously observed optical reflection nebulae. All three regions also contain highly obscured sources which are often associated with radio maser activity, high-velocity gas outflows, and unusual radio continuum emission. There is a strong correlation between the occurrence of these radio phenomena and the presence of dust close enough to the central objects to radiate strongly in the 3-20 micron spectral region. These obscured sources are likely to be the pre-main-sequence counterparts to the nearby visible main-sequence stars; the obscured objects may still be undergoing mass accretion.

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