Investigating 2MASS J06593158-0405277: AN FUor Burst in a Triple System?
Caratti o Garatti, A; Garcia Lopez, R; Ray, TP; et al.Eislöffel, J; Stecklum, B; Scholz, A; Kraus, Stefan; Weigelt, G; Kreplin, Alexander; Shenavrin, V
Date: 2 June 2015
Journal
Astrophysical Journal Letters
Publisher
American Astronomical Society
Publisher DOI
Abstract
FUor outbursts in young stellar objects are the most dramatic events among episodic accretion phenomena. The origin of these bursts is not clear: disk instabilities and/or disk perturbations by an external body being the most viable hypotheses. Here, we report our Very Large Telescope/SINFONI high angular resolution AO-assisted ...
FUor outbursts in young stellar objects are the most dramatic events among episodic accretion phenomena. The origin of these bursts is not clear: disk instabilities and/or disk perturbations by an external body being the most viable hypotheses. Here, we report our Very Large Telescope/SINFONI high angular resolution AO-assisted observations of 2MASS J06593158-0405277, which is undergoing a recently discovered FUor outburst. Our observations reveal the presence of an extended disk-like structure around the FUor, a very low-mass companion (2MASS J06593158-0405277B) at ~100 AU in projection, and, possibly, a third closer companion at ~11 AU. These sources appear to be young, displaying accretion signatures. Assuming the components are physically linked, 2MASS J06593158-0405277 would then be one of the very few triple systems observed in FUors.
Physics and Astronomy
Faculty of Environment, Science and Economy
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