Investigating 2MASS J06593158-0405277: a FUor burst in a triple system?
| Autor: | Garatti, Alessio Caratti o, Lopez, Rebeca Garcia, Ray, Tom P., Eisloeffel, Jochen, Stecklum, Bringfried, Scholz, Aleks, Kraus, Stefan, Weigelt, Gerd, Kreplin, Alexander, Shenavrin, Victor |
|---|---|
| Rok vydání: | 2015 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/2041-8205/806/1/L4 |
| Popis: | 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. Comment: Accepted for publication in the Astrophysical Journal Letters |
| Databáze: | arXiv |
| Externí odkaz: |
|