Wavelength Dependence of the Orbital Variability of the Eclipsing Nova-Like Object Dw Uma

Details Wavelength Dependence of the Orbital Variability of the Eclipsing Nova-Like Object Dw Uma Wavelength Dependence of the Orbital Variability of the Eclipsing Nova-Like Object Dw Uma

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.296..473o&link_type=abstract

Astrophysics and Space Science, Volume 296, Issue 1-4, pp. 473-476

Astronomy and Astrophysics

Astrophysics

1

Stars, Nova-Like Individual, Dw Uma

Scientific paper

Results of three-colour VRI CCD photometry are presented obtained during 11 nights in 2001. Twelve new minima timings are derived. The eclipse depth decreases with wavelength, being equal to 1.28, 1.13 and 1.02 for V, R and I, respectively. The instrumental magnitudes and colours are tabulated for the mid-eclipse, out-of-eclipse part and the eclipsed component. The V-R colour of the eclipsed component of emission is by 0.22 mag bluer than that for mid-eclipse, indicating a much higher temperature of the eclipsed region.

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