Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...115..308n&link_type=abstract
Astronomy and Astrophysics, vol. 115, no. 2, Nov. 1982, p. 308-314. Swedish Board for Space Activities
Astronomy and Astrophysics
Astronomy
28
Far Infrared Radiation, Infrared Astronomy, Interstellar Matter, Molecular Clouds, Stellar Evolution, Early Stars, H Ii Regions, Planetary Nebulae, Spatial Distribution, Stellar Luminosity, Stellar Winds
Scientific paper
The Serpens molecular cloud has been observed at far IR wavelengths over an area of size 20 x 20 arcmin, centered on the Serpens reflection nebula. The deduced total dust luminosity is only 300-500 solar luminosities, implying that the embedded objects, of which there are at least seven, are all of intermediate or low mass. It is proposed that three very compact H II-regions in the cloud are associated with low-mass stars having strong stellar winds. This interpretation is supported by the appearance of the associated molecular line profiles, which have both enhanced line widths and high velocity wings. The Serpens H II-regions may thus resemble the weak H II-regions found in the directions of a few low-luminosity stars of the Orion population. It is suggested that stellar winds associated with the embedded young objects may give rise to further star formation.
Aalders W. G. J.
Beintema Douwe
Malcolm Fridlund C. V.
Nordh Lennart H.
Sargent Anneila I.
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