Bibcode
García-Alvarez, D.; Wright, N. J.; Drake, J. J.; Abraham, P.; Anandarao, B. G.; Kashyap, V.; Kospal, A.; Kun, M.; Marengo, M.; Moor, A.; Peneva, S.; Semkov, E.; Venkat, V.; Sanz-Forcada, J.
Bibliographical reference
16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun. ASP Conference Series, Vol. 448, proceedings of a conference held August 28- September 2, 2010 at the University of Washington, Seattle, Washington. Edited by Christopher M. Johns-Krull, Matthew K. Browning, and Andrew A. West. San Francisco: Astronomical Society of the Pacific, 2012., p.609
Advertised on:
12
2011
Citations
4
Refereed citations
4
Description
V1647 Ori is a young eruptive variable star, illuminating a reflection
nebula (McNeil's Nebula). It underwent an outburst in 2003 before fading
back to its pre-outburst brightness in 2006. In 2008, V1647 Ori
underwent a new outburst. The observed properties of the 2003-2006 event
are different in several respects from both the EXor and FUor type
outbursts, and suggest that this star might represent a new class of
eruptive young stars, younger and more deeply embedded than EXors, and
exhibiting variations on shorter time scales than FUors. In outburst,
the star lights up the otherwise invisible McNeil's nebular -- a conical
cloud likely accumulated from previous outbursts. We present follow-up
photometric as well as optical and near-IR spectroscopy of the nebula
obtainted during the 2008-2009 outburst. We will also present results
from contemporaneous X-ray observations. These multi-wavelength
observations of V1647 Ori, obtained at this key early stage of the
outburst, provide a snapshot of the "lighting up" of the nebula, probe
its evolution through the event, and enable comparison with the
2003-2006 outburst.