Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...172..304h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 172, no. 1-2, Jan. 1987, p. 304-310.
Astronomy and Astrophysics
Astrophysics
34
Polarimetry, Reflection Nebulae, Star Formation, Astronomical Maps, H Ii Regions, Infrared Radiation, Magnetic Fields, Molecular Clouds
Scientific paper
An infrared map and infrared polarimetric data on the Mon R2 star-forming region are presented. The extended flux at 2.2 μm in this complex is found to be a shell-like reflection nebula illuminated by IRS 2. This shell shows indications of clumpiness. It consists of molecular material swept up by the expanding H II region ionized by IRS 1. The bright source IRS 3 is not physically near to the reflection nebula, since it does not contribute noticeably to its illumination. I-band CCD polarization measurements of stars in the background of the Mon R2 cloud show a well ordered, bent structure of the magnetic field that can be understood in a model of a collapsing, magnetized rotating molecular cloud.
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