Dark clouds imaging polarimetry (Sen+, 2000)

Details Dark clouds imaging polarimetry (Sen+, 2000) Dark clouds imaging polarimetry (Sen+, 2000)

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ycat..41410175s&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/141/175. Originally published in: 2000A&AS..141..175S

Other

Bok Globules, Polarization

Scientific paper

A set of eight Bok Globules CB3, CB25, CB39, CB52, CB54, CB58, CB62 and CB246 were observed polarimetrically in white light, using our Imaging Polarimater (IMPOL), from the 1.2m IR telescope at Mount Abu, India. The observations were carried out on different nights during the period December 1997 and April 1998. The CCD images obtained from the instrument (IMPOL) were analyzed, to produce polarization map of the Bok Globules. The stars in the field, which are mostly background to the cloud show typically 2% linear polarization. Clouds which are less dynamic (having 12CO line widths ΔV<2.5km/s) in general show slightly better alignment of polarization vectors with the projected direction of galactic plane. On the other hand, the more dynamic group of clouds has polarization vectors more scattered and poorly aligned with the projected direction of the galactic plane. However one of the clouds observed, CB58, does not follow this trend very well. (1 data file).

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