Astronomy and Astrophysics – Astronomy
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...196..236z&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 196, no. 1-2, May 1988, p. 236-242.
Astronomy and Astrophysics
Astronomy
28
Emission Spectra, Infrared Astronomy Satellite, Infrared Radiation, Late Stars, Line Spectra, Molecular Clouds, High Resolution, Morphology, Spatial Resolution, Stellar Mass
Scientific paper
High spatial resolution IRAS observations (CPC) of the core of the Serpens molecular cloud exhibit a double-peaked morphology similar to that of NH3 spectral line emission. The relatively low far-infrared luminosity derived from IRAS survey data of about 430 L_sun; and the existence of at least 6 or 7 embedded objects confirms the conclusion of Nordh et al. (1982) that only intermediate or low-mass young stars are being formed in this dense molecular core. The 50/100 μm color temperature exhibits a hot ridge of 30 - 32K. The 100 μm optical depth shows two peaks. The stars SVS 2 and 20 may account for heating of small part of the hot ridge. Ultraviolet photons produced by shock waves probably account for the majority of the heating. A ring structure may be reconciled with the infrared and ammonia morphology.
Clark Frank O.
Laureijs Rene J.
Zhang Cheng-Yong
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