COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS Number 2445 Konkoly Observatory Budapest 14 December 1983 HU ISSN 0374-0676 POLARIMETRIC OBSERVATIONS OF Be STARS In 1982 we started a program of UBVR polarimetry of bright southern Be stars, extending to the south similar observations already extensively done by other people in the Northern hemisphere (see e,g. Poeckert et al. 1979). The measurements have been performed with the Instituto Astronomico e Geofisico (Universidade de Sao Paulo, Brasil) photopolarimeter attached to the Observatorio Astrofisico Brasileiro 1.6 meter telescope. The instrument allows simultaneous photometric and linear and circular polarimetric observations (Magalhaes 1979). Some results are given in Table I, for stars with E_B-V = 0, that is with no interstellar polarization. Columns give successively, HD numbers, V magnitudes, spectral types, polarization degree (in percent) in U,B,V and R bands, polarization angles in the four bands and dates of the observations. L.A.S. REIS E. JANOT-PACHECO Instituto Astronomico e Geofisico Universidade de Sao Paulo C. Postal 30.627 01000 Sao Paulo/Brasil References: Magalhaes, A.M., 1979, Thesis, I.A.G./U.S.P., S. Paulo, Brasil Poeckert, R., Bastian, P., Landstreet, J.D., 1979. Astron.J., 84, 812 [BIBCODE 1979AJ.....84..812P ] Table I HD V S_p p^U p^B p^V p^R d^U d^B d^V d^R Date -------------------------------------------------------------------------------------------------------------------------------------------- 209014 5.4 B8Ve 0.36+-0.05 0.27+-0.04 0.17+-0.07 31.2+-3.9 35.7+-4.3 73.7+-12.1 09/08/1982 0.23+-0.06 0.32+-0.06 0.22+-0.05 44.6+-7.5 32.9+-5.4 46.1+-6.4 12/08/1982 0.17+-0.21 0.13+-0.15 130.2+-51.9 137.4+-51.9 21/06/1983 0.18+-0.34 0.42+-0.09 0.26+-0.24 154.9+-51.9 104.8+-6.0 128.6+-26.3 21/06/1983 209522 5.8 B4IVn 0.34+-0.08 0.48+-0.07 0.35+-0.08 0.48+-0.07 18.4+-6.8 10.9+-4.2 7.9+-6.6 16.1+-4.2 09/08/1982 0.28+-0.10 0.44+-0.08 0.22+-0.07 0.19+-0.10 35.2+-10.2 38.8+-5.3 23.5+-8.9 49.9+-15.2 12/08/1982 0.32+-0.28 0.39+-0.12 0.31+-0.13 98.5+-25.4 109.4+-8.6 82.3+-12.3 21/06/1983 210129 5.7 B7Ve 0.43+-0.10 0.50+-0.08 0.32+-0.05 0.43+-0.10 89.7+-6.6 98.0+-4.6 108.9+-4.5 91.4+-6.7 08/08/1982 0.38+-0.06 0.52+-0.07 0.50+-0.09 0.28+-0.11 21.3+-4.5 25.0+-3.8 49.4+-5.2 74.5+-11.4 09/08/1982 --------------------------------------------------------------------------------------------------------------------------------------------