Abstract:
The FU Ori/EX Od phenomenon represents a rare
and not yet fully understood phase of the early evolution of low mass
stars. Therefore, the photometric and spectroscopic monitoring of
the post-outburst phase of these objects is required to settle the class
of eruptive variables to which they belong. V1647 Ori had gone into
outburst phase in early 2004 (McNeil 2004) and faded considerably
around late 2005 (Ojha et al. 2006). It underwent another strong outburst
in 2008 (Itagaki et al. 2008, Ojha et al. 2008). Such observed
properties are rarely seen in cases of very young low mass stars. Our
long-term observations from Sep 2008 to Sep 2009 show that V1647
Ori has not yet faded back to the pre-outburst phase.