FUors and Early Stellar Evolution

Details FUors and Early Stellar Evolution FUors and Early Stellar Evolution

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010vaoa.conf...19r&link_type=abstract

"Evolution of Cosmic Objects through their Physical Activity, Proceedings of the Conference dedicated to Viktor Ambartsumian's 1

Physics

8

Scientific paper

Ambartsumian was among the first researchers who recognized the importance and uniqueness of FUors, the term he coined for the rare outburst sources of the FU Orionis type. A wealth of observational data and concomitant theoretical work has advanced our understanding of FUors in the intervening almost 40 years. These results are summarized in this brief review, with special emphasis on observations related to the binarity of FUors. It is argued that at least some FUors represent the transitions of young binaries from a wide to a close system, and are thus signposts of the formation of a spectroscopic binary. Finally, we discuss in some detail recent observations of V1647 Ori, the latest eruption to have been witnessed in a star forming region.

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