An investigation of polarization produced by circumstellar dust envelopes

dc.contributor.author	Raveendran, A. V
dc.date.accessioned	2008-07-14T05:50:11Z
dc.date.available	2008-07-14T05:50:11Z
dc.date.issued	1991-03
dc.identifier.citation	Astronomy and Astrophysics , Vol. 243, No. 2, pp. 445 - 452	en
dc.identifier.issn	0004-6361
dc.identifier.uri	http://hdl.handle.net/2248/2652
dc.description.abstract	Numerical computations show that: (1) the polarimetric behavior of carbon stars is inconsistent with the scattering by graphite grains, (2) the radial pulsation of the star does not significantly change the net polarization produced by an envelope, (3) the envelope geometry has very little effect on the normalized wavelength dependence, and (4) if the illuminating star has a nonuniform surface brightness distribution, circumstellar grain scattering produces not only significant changes in the normalized wavelength dependence of polarization but also polarization changes across spectral features.	en
dc.format.extent	998374 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	European Southern Observatory	en
dc.subject	Carbon stars	en
dc.subject	Cosmic dust	en
dc.subject	Interstellar matter	en
dc.subject	Polarimetry	en
dc.subject	Stellar envelopes	en
dc.subject	Brightness distribution	en
dc.subject	Computer programs	en
dc.subject	Linear polarization	en
dc.subject	Stellar oscillations	en
dc.title	An investigation of polarization produced by circumstellar dust envelopes	en
dc.type	Article	en