Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996mnras.282.1418g&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 282, Issue 4, pp. 1418-1436.
Astronomy and Astrophysics
Astronomy
30
Polarization, Scattering, Stars: Formation, Dust, Extinction, Ism: Individual: Chamaeleon Infrared Nebula, Reflection Nebulae
Scientific paper
We present linear and circular imaging polarimetry observations of the Chamaeleon infrared nebula, a bipolar reflection nebula in the Chamaeleon I dark cloud, at near-infrared (JHK_n) wavelengths. These are amongst the first imaging circular polarimetry results for a star-forming region. The detection of both high degrees of linear polarization and a significant degree of circular polarization in the extended nebulosity allows us to comment on the scattering geometry and the range of particle sizes present. We develop a model incorporating a polarized source which can successfully account for the observed linear and circular polarimetry and for the asymmetries in nebular brightness (the `bright rim' structures) seen in this and other objects (e.g., NGC 2261/R Mon). In order to do so, the model requires a non-axisymmetric illumination of the nebula, and we discuss possible origins for this asymmetry, including disruption of a circumstellar disc by binary protostars.
Chrysostomou Antonio
Gledhill Tim M.
Hough James H.
No associations
LandOfFree
Linear and circular imaging polarimetry of the Chamaeleon infrared nebula does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Linear and circular imaging polarimetry of the Chamaeleon infrared nebula, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear and circular imaging polarimetry of the Chamaeleon infrared nebula will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1137722