Investigating 2MASS J06593158-0405277: a FUor burst in a triple system?

A. Caratti o Garatti; R. Garcia Lopez; T. P. Ray; J. Eislöffel; B. Stecklum; A. Scholz; S. Kraus; G. Weigelt; A. Kreplin; V. Shenavrin

doi:10.1088/2041-8205/806/1/L4

Investigating 2MASS J06593158-0405277: a FUor burst in a triple system?

A. Caratti o Garatti
, R. Garcia Lopez
, T. P. Ray
, J. Eislöffel
, B. Stecklum
, A. Scholz
, S. Kraus
, G. Weigelt
, A. Kreplin
, V. Shenavrin

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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 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.

Original language	English
Article number	L4
Number of pages	5
Journal	Astrophysical Journal Letters
Volume	806
Issue number	1
DOIs	https://doi.org/10.1088/2041-8205/806/1/L4
Publication status	Published - 2 Jun 2015

Keywords

Binaries: close
Circumstellar matter
Stars: formation
Stars: individual: 2MASS J06593158-0405277
Stars: pre-main sequence
Techniques: high angular resolution

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10.1088/2041-8205/806/1/L4

CarattiOGaratti_2MASS_APJL_806_1_L4
© 2015, American Astronomical Society. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at iopscience.iop.org / https://dx.doi.org/10.1088/2041-8205/806/1/L4
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@article{9fd7c9aa790e43b9b9faa75275dc3450,

title = "Investigating 2MASS J06593158-0405277: a FUor burst in a triple system?",

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 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 \textasciitilde{}100 au in projection, and, possibly, a third closer companion at \textasciitilde{}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.",

keywords = "Binaries: close, Circumstellar matter, Stars: formation, Stars: individual: 2MASS J06593158-0405277, Stars: pre-main sequence, Techniques: high angular resolution",

author = "\{Caratti o Garatti\}, A. and \{Garcia Lopez\}, R. and Ray, \{T. P.\} and J. Eisl{\"o}ffel and B. Stecklum and A. Scholz and S. Kraus and G. Weigelt and A. Kreplin and V. Shenavrin",

note = "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).",

year = "2015",

month = jun,

day = "2",

doi = "10.1088/2041-8205/806/1/L4",

language = "English",

volume = "806",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "1",

}

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 -

Investigating 2MASS J06593158-0405277: a FUor burst in a triple system?

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Keywords

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