[vsnet-alert 11176] OT J071126.0+440405: dramatic change in the eclipses

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Thu Apr 9 10:08:19 JST 2009


OT J071126.0+440405: dramatic change in the eclipses

   Nakajima-san has further reported observations on Apr. 8.
The object was still in hight state, and again with prominent pre-eclipse
dips.  The profile of the (at least one) eclipse dramatically changed:
the minimum was much shallower (reaching only mag 17) with a rectangular
profile.  The pre-eclipse dip was also broad with a flat bottom.
These variation would suggest that the accretion stream has greatly
expanded in geometry.  Further observations are strongly encouraged.


More information about the vsnet-alert mailing list