Infrared Photometry for Five Close Binary Systems

Details Infrared Photometry for Five Close Binary Systems Infrared Photometry for Five Close Binary Systems

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005astl...31..598t&link_type=abstract

Astronomy Letters, vol. 31, Issue 9, p.598-611

Astronomy and Astrophysics

Astronomy

Stars&#8212, Variable And Peculiar - Close Binary Systems

Scientific paper

We present the JHKLM photometry for five close (W Ser) binary systems obtained in the period 1996 2004. Positive phase shifts (with respect of the adopted ephemerides) have been found in the orbital infrared light curves for three binaries, RX Cas, KX And, and β Lyr; the rates of increase in their periods are ˜3.5 × 10-4, ˜1.6 × 10-3, and ˜1.4 × 10-4 days yr-1, respectively. We have performed the spectral classification of the components of the binaries under study and estimated their parameters.

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