The orbital period of CY UMa

Bibcode
1995MNRAS.275..699M
Martinez-Pais, I. G.; Casares, J.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, Volume 275, Issue 3, pp. 699-702.

Advertised on:
8
1995
Journal
Monthly Notices of the Royal Astronomical Society
Number of authors
2
IAC number of authors
1
Citations
7
Refereed citations
6
Description
We present intermediate resolution spectroscopy of the dwarf nova CY UMa in quiescence. From the radial velocities of the Hα emission, we derive an orbital period of 0.067 95+/-8x10^-5 d, which disagrees with previous photometric estimates. We also constrain the system parameters. The core of the Hα emission seems to be dominated by a component almost in phase with the line wings. Such a component would originate in a region opposite to the secondary star with respect to the white dwarf. This effect appears to be a common feature of SU UMa systems.
Type
Refereed
Novae

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