Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-10-10
Astronomy and Astrophysics
Astrophysics
7 pages, 5 figures, contributed paper to Conference "Interacting Binaries: Accretion and Synchronization" held in Crimean Astr
Scientific paper
We report the results of recent multicolor photometry and medium resolution spectroscopy of V838 Mon taken in 2007-2008. In the eclipse-like event in December 2006, the hot B3V type companion disappeared. The event accompanied by strengthening emission [FeII]/FeII lines in the spectra. We explain this event as the formation of temporal short-lived accretion disc around the hot companion. Later, in February 2007 the hot star reappeared in its full brightness, but disappeared again for a long time since September 2007. This is the engulf of B3V companion by expanding remnant of 2002 outburst. We assume that the thick accretion disc has formed around B type companion which is moving now inside the envelope of the cool star. There is some evidence of heating this disc and/or cool star envelope. We estimated the radius of expanding cool remnant in December, 2006 of about 150 A.U. or 30000 solar radii.
Barsukova Elena
Fabrika Sergei
Goranskij Vitaly
Valeev Azamat
Zharova Alla
No associations
LandOfFree
Peculiar Red Nova V838 Mon: Accretion and Interaction in a Wide Binary System after Explosion of Its Companion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Peculiar Red Nova V838 Mon: Accretion and Interaction in a Wide Binary System after Explosion of Its Companion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Peculiar Red Nova V838 Mon: Accretion and Interaction in a Wide Binary System after Explosion of Its Companion will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-527822