The Disappearing Act of KH 15D: Photometric Results from the 2002-2004 Observing Campaigns

Hamilton, C. M.; Herbst, W.; Vrba, F. J.; Ibrahimov, M. A.; Mundt, R.; Bailer-Jones, C. A. L.; Sanchez Bejar, V. J.; Abraham, P.; Kun, M.; Moor, A.; Benko, J.; Csizmadia, S.; Filippenko, A. V.; Li, W.
Referencia bibliográfica

American Astronomical Society Meeting 205, #16.13; Bulletin of the American Astronomical Society, Vol. 36, p.1364

Fecha de publicación:
12
2004
Número de autores
14
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
We present the results from the 2002-2004 seasons of photometric monitoring of the eclipsing system KH 15D. The eclipse has continued to evolve in secular fashion, and the eclipses are now approximately 24 days in length, or half the period. A periodogram of the most recent data confirms the spectroscopic period of 48.38 days determined by Johnson et al. (2004). Phasing nine years (1995-2004) of photometric data shows substantial evolution in the width and depth of the eclipses. These results are interpreted and discussed in the context of the recent models for this system put forward by Winn et al. (2004) and Chiang & Murray-Clay (2004).