B and V light curves of the very short-period binary VZ PISCIUM

Details B and V light curves of the very short-period binary VZ PISCIUM B and V light curves of the very short-period binary VZ PISCIUM

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pasp..101..661s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 101, July 1989, p. 661-666.

Astronomy and Astrophysics

Astronomy

5

Eclipsing Binary Stars, Light Curve, Stellar Spectrophotometry, Variable Stars, Stellar Magnitude, Visual Photometry

Scientific paper

The very short-period W Ursae Majoris system VZ Psc was observed on two consecutive nights with the facilities at Lowell Observatory. The observations covering the eclipse portions of the light curves yielded four epochs of minimum light and an improved ephemeris. A period study covering nearly 27,000 cycles revealed that the period has remained rather constant with no discernible long-term variation. The light curves, defined by 321 observations with the B filter and 317 with the V filter, display shallow eclipse depths and are highly asymmetric with maxima occurring at phases 0.29 and 0.72. The maximum following primary eclipse is somewhat fainter and redder than the maximum following secondary eclipse.

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