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2005MNRAS.361..177S - Mon. Not. R. Astron. Soc., 361, 177-190 (2005/July-3)
An analysis of the distribution of background star polarization in dark clouds.
SEN A.K., MUKAI T., GUPTA R. and DAS H.S.
Abstract (from CDS):
In order to study the spatial distribution of the degree of polarization and position angles across the different parts of the cloud a simple model is proposed, where the cloud has been assumed to be a simple dichroic polarizing sphere and the light from the background star first passes through the interstellar medium and then through the cloud, before reaching the observer. One finds this simple model can explain to a reasonable extent the observed spatial (radial) dependence of the value of p for two of the clouds (CB25, CB39), but for the rest of the clouds the model fails. However, through this model one can explain why the polarization (p) need not always increase with total extinction Avas one moves into the deeper interior of the cloud.
Abstract Copyright: 2005 RAS
Journal keyword(s): polarization - stars: formation - ISM clouds - dust, extinction - ISM: globules
Simbad objects: 10
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