TY - JOUR
T1 - Investigating 2MASS J06593158-0405277
T2 - a FUor burst in a triple system?
AU - Caratti o Garatti, A.
AU - Garcia Lopez, R.
AU - Ray, T. P.
AU - Eislöffel, J.
AU - Stecklum, B.
AU - Scholz, A.
AU - Kraus, S.
AU - Weigelt, G.
AU - Kreplin, A.
AU - Shenavrin, V.
N1 - A.C.G., R.G.L., and T.P.R. were supported by Science Foundation Ireland, grant 13/ERC/I2907. S.K. acknowledges support from an STFC Ernest Rutherford Fellowship (ST/J004030/1), Ernest Rutherford Grant (ST/K003445/1), and Marie Curie CIG grant (SH-06192).
PY - 2015/6/2
Y1 - 2015/6/2
N2 - 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 2MASSJ06593158-0405277, which is undergoing a recently discovered FUoroutburst. Our observations reveal the presence of an extended disc-like structure around the FUor, a very low-mass companion (2MASSJ06593158-0405277B) 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.
AB - 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 2MASSJ06593158-0405277, which is undergoing a recently discovered FUoroutburst. Our observations reveal the presence of an extended disc-like structure around the FUor, a very low-mass companion (2MASSJ06593158-0405277B) 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.
KW - Binaries: close
KW - Circumstellar matter
KW - Stars: formation
KW - Stars: individual: 2MASS J06593158-0405277
KW - Stars: pre-main sequence
KW - Techniques: high angular resolution
UR - http://adsabs.harvard.edu/abs/2015arXiv150503691G
U2 - 10.1088/2041-8205/806/1/L4
DO - 10.1088/2041-8205/806/1/L4
M3 - Article
SN - 2041-8205
VL - 806
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 1
M1 - L4
ER -