Observational evidence for the influence of the magnetic field on star formation in the Serpens molecular cloud

Details Observational evidence for the influence of the magnetic field on star formation in the Serpens molecular cloud Observational evidence for the influence of the magnetic field on star formation in the Serpens molecular cloud

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...201..299g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 201, no. 2, Aug. 1988, p. 299-310.

Astronomy and Astrophysics

Astronomy

37

Interstellar Matter, Molecular Clouds, Star Formation, Stellar Magnetic Fields, Charge Coupled Devices, Infrared Astronomy, Pre-Main Sequence Stars, Reflection Nebulae, Star Clusters

Scientific paper

The authors present new optical and infrared observations of the Serpens star-forming region. Seven nebulous objects have been detected at 0.9 μm in a region of 20 arcmin2 in size within the Serpens dense molecular core. Two objects are bipolar nebulae - the Serpens reflection nebula (SRN) and a new very faint nebulosity - and five have a cometary-like shape with a stellar object at the apex. The authors propose that all the seven objects are reflection nebulae. An analysis of the extinction by means of the Hubble's relation suggests the presence of a dust disk or torus around the illuminating stars. A star formation efficiency of around 10% and a stellar mass density of several hundreds M_sun;pc-3 are implied from the observational data. Two distinct polarization patterns are seen at 0.95 μm in SRN. The new detected bipolar nebula coincides with the near-infrared/radio continuum source SVS 4.

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