BZ Ursae Majoris
Abstract
R. Claudi, A. Bianchini, and U. Munari, Padova and Asiago Observatories, communicate: "Spectroscopic observations of the dwarf nova BZ UMa, obtained on Mar. 4 and 5 with the Boller and Chivens spectrograph (+ CCD) on the Asiago 1.8-m telescope, have revealed a pronounced periodic modulation of a complex H-alpha emission profile. The derived orbital period is about 1.62 hr. The FWHM of the H-alpha emission profile is about 1420 km/s, while the velocity separation in the doubled-peaked profile is about 660 km/s. The derived orbital period places BZ UMa below the CVs period gap, suggesting a possible classification of this dwarf nova among the SU UMa stars."
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- March 1990
- Bibcode:
- 1990IAUC.4975....2C