The Unique Eclipsing System KH 15D: New Photometric Data

Details The Unique Eclipsing System KH 15D: New Photometric Data The Unique Eclipsing System KH 15D: New Photometric Data

2004-09-02

arxiv.org/abs/astro-ph/0409060v1

Astrophysics 48 (2005) 1-8

Astronomy and Astrophysics

Astrophysics

7 pages, 3 figures, Accepted by Astrophysics

Scientific paper

10.1007/s10511-005-0001-z

We present results of the photometric observations of the young eclipsing binary KH 15D obtained during the two observational seasons of 2002-2004 years. A comparison of our data with those by Hamilton et al. (2001) and Herbst et al. (2002) reveals an existence of the long-term photometrical brightness trend: during 5 years a system brightness in the I band decreased by about one stellar magnitude. It is also shown that a systematic change of the eclipse parameters found by Herbst et al. (2002) is continuing up to now. The shape of the light curve did not change essentially and is characterized with a small brightening in the central part of the eclipses. The results obtained are discussed in the context of the current models of KH 15D.

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