Photometry and polarimetry of pre-main sequence stars

Details Photometry and polarimetry of pre-main sequence stars Photometry and polarimetry of pre-main sequence stars

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...285..883h&link_type=abstract

Astronomy and Astrophysics 285, 883-896 (1994)

Astronomy and Astrophysics

Astrophysics

38

Polarization, Stars: Pre-Main Sequence, Stars: Variable, Circumstellar Matter, Infrared: Stars

Scientific paper

We present optical and infrared photometry, and optical polarimetry, of several pre-main sequence stars; much of the data were obtained quasi-simultaneously. Our data demonstrate that, while a simple occultation model for deep visual minima in pre-main sequence stars is consistent with the data in some cases, in others a major change in the outer dust shell is required to account for the optical-infrared behaviour. Apart from the marginal case of UX Ori, there is no significant correlation between polarization and photometric colours. We tentatively report the possible detection of circular polarization in AK Sco, RU Lup, HD97048 and HD144667.

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