{ "id": "1505.03691", "version": "v1", "published": "2015-05-14T11:38:35.000Z", "updated": "2015-05-14T11:38:35.000Z", "title": "Investigating 2MASS J06593158-0405277: a FUor burst in a triple system?", "authors": [ "Alessio Caratti o Garatti", "Rebeca Garcia Lopez", "Tom P. Ray", "Jochen Eisloeffel", "Bringfried Stecklum", "Aleks Scholz", "Stefan Kraus", "Gerd Weigelt", "Alexander Kreplin", "Victor Shenavrin" ], "comment": "Accepted for publication in the Astrophysical Journal Letters", "categories": [ "astro-ph.SR" ], "abstract": "FUor outbursts in young stellar objects (YSOs) 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 VLT/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 disc-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.", "revisions": [ { "version": "v1", "updated": "2015-05-14T11:38:35.000Z" } ], "analyses": { "keywords": [ "triple system", "fuor burst", "investigating 2mass", "fuor outburst", "high angular resolution ao-assisted observations" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }