CCD Photometry of Dwarf Nova AL Com in Superoutburst

Details CCD Photometry of Dwarf Nova AL Com in Superoutburst CCD Photometry of Dwarf Nova AL Com in Superoutburst

1995-09-20

arxiv.org/abs/astro-ph/9509103v1

Astronomy and Astrophysics

Astrophysics

appeared in Acta Astronomica, 15 pages, uuencoded PostScript with figures included; also available through WWW at http://www

Scientific paper

We report a CCD optical photometry of a dwarf nova AL Com in superoutburst. Before superhumps occurred the light curve was highly variable with dominant periods about 41 minutes and 81.5 minutes for different nights. The period of observed superhumps is 82.5 minutes and seems to be stable. The first harmonic of the basic period is also present. We detected a weak signal corresponding to period 78.1 minutes. One of the periods 78.1 or 81.5 is suspected to be a possible signature of orbital motion in the system.

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