The orbital period of the SU Ursae Majoris star AK CANCRI

Details The orbital period of the SU Ursae Majoris star AK CANCRI The orbital period of the SU Ursae Majoris star AK CANCRI

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...337..472a&link_type=abstract

Astronomy and Astrophysics, v.337, p.472-476 (1998)

Astronomy and Astrophysics

Astrophysics

11

Accretion, Accretion Disks, Stars: Fundamental Parameters, Stars: Individual: Ak Cnc, Stars: Novae, Cataclysmic Variables

Scientific paper

A time resolved spectroscopic study of the SU UMa subtype dwarf nova AK Cancri is presented. An orbital period of Porb 0hbox {. ^d}0651(2) and a radial velocity half-amplitude of K = 50(3) km s(-1) were obtained from the radial velocity variations of the Hα emission line. Assuming various observational constraints, we deduced a most likely mass ratio of q = 0.28 +/- 0.02 and stellar masses of M(1) = 0.41 +/- 0.03 M_sun and M(2) = 0.1135 +/- 0.0002 M_sun, for the primary and secondary star, respectively. In addition, the dynamical solution indicates a low orbital inclination (i = 36(o) +/- 3(o) ). Based on observations obtained at Las Campanas Observatory, Chile

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