ALMA detects a radial disk wind in DG Tauri

M. Güdel; C. Eibensteiner; O. Dionatos; M. Audard; J. Forbrich; S. Kraus; Ch. Rab; Ch. Schneider; S. Skinner; E. Vorobyov

doi:10.1051/0004-6361/201834271

ALMA detects a radial disk wind in DG Tauri

M. Güdel, C. Eibensteiner, O. Dionatos, M. Audard, J. Forbrich, S. Kraus, Ch. Rab, Ch. Schneider, S. Skinner, E. Vorobyov

Astronomy

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Abstract

Aims: We aim to use the high spatial resolution of the Atacama Large Millimeter/submillimeter Array (ALMA) to map the flow pattern of molecular gas near DG Tauri and its disk, a young stellar object driving a jet and a molecular outflow. Methods: We use observations fromALMA in the J = 2-1 transition of 12CO, 13CO, andC18O to study the Keplerian disk of DG Tauri and outflows that may be related to the disk and the jet. Results: We find anew wind component flowing radially at a steep angle (≈25° from the vertical) above the disk with a velocity of ≈3.1 km s-1. It continues the trend of decreasing velocity for increasing distance from the jet axis ("onion-like velocity structure"). Conclusions: The new component is located close to the protostellar disk surface and may be related to photoevaporative winds. The reduced datacubes are only available at the CDS via anonymous ftp tohttp://cdsarc.u-strasbg.fr(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/620/L1

Original language	English
Article number	L1
Number of pages	7
Journal	Astronomy & Astrophysics
Volume	620
Early online date	23-Nov-2018
DOIs	https://doi.org/10.1051/0004-6361/201834271
Publication status	Published - Dec-2018

Keywords

stars: pre-main sequence
stars: winds
outflows
protoplanetary disks

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ALMA detects a radial disk wind in DG TauriFinal publisher's version, 10.3 MBLicence: Unspecified

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25 Citations
1 Erratum

ALMA detects a radial disk wind in DG Tauri (Corrigendum)
Güdel, M., Eibensteiner, C., Dionatos, O., Audard, M., Forbrich, J., Kraus, S., Rab, C., Schneider, C., Skinner, S. & Vorobyov, E., 8-Nov-2019, In: Astronomy & Astrophysics. 631, 7 p., C1.
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@article{2312e954935547c981aecbbcfdcaa704,

title = "ALMA detects a radial disk wind in DG Tauri",

abstract = " Aims: We aim to use the high spatial resolution of the Atacama Large Millimeter/submillimeter Array (ALMA) to map the flow pattern of molecular gas near DG Tauri and its disk, a young stellar object driving a jet and a molecular outflow. Methods: We use observations fromALMA in the J = 2-1 transition of 12CO, 13CO, andC18O to study the Keplerian disk of DG Tauri and outflows that may be related to the disk and the jet. Results: We find anew wind component flowing radially at a steep angle (≈25° from the vertical) above the disk with a velocity of ≈3.1 km s-1. It continues the trend of decreasing velocity for increasing distance from the jet axis ({"}onion-like velocity structure{"}). Conclusions: The new component is located close to the protostellar disk surface and may be related to photoevaporative winds. The reduced datacubes are only available at the CDS via anonymous ftp tohttp://cdsarc.u-strasbg.fr(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/620/L1",

keywords = "stars: pre-main sequence, stars: winds, outflows, protoplanetary disks",

author = "M. G{\"u}del and C. Eibensteiner and O. Dionatos and M. Audard and J. Forbrich and S. Kraus and Ch. Rab and Ch. Schneider and S. Skinner and E. Vorobyov",

year = "2018",

month = dec,

doi = "10.1051/0004-6361/201834271",

language = "English",

volume = "620",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = " EDP Sciences",

}

TY - JOUR

T1 - ALMA detects a radial disk wind in DG Tauri

AU - Güdel, M.

AU - Eibensteiner, C.

AU - Dionatos, O.

AU - Audard, M.

AU - Forbrich, J.

AU - Kraus, S.

AU - Rab, Ch.

AU - Schneider, Ch.

AU - Skinner, S.

AU - Vorobyov, E.

PY - 2018/12

Y1 - 2018/12

N2 - Aims: We aim to use the high spatial resolution of the Atacama Large Millimeter/submillimeter Array (ALMA) to map the flow pattern of molecular gas near DG Tauri and its disk, a young stellar object driving a jet and a molecular outflow. Methods: We use observations fromALMA in the J = 2-1 transition of 12CO, 13CO, andC18O to study the Keplerian disk of DG Tauri and outflows that may be related to the disk and the jet. Results: We find anew wind component flowing radially at a steep angle (≈25° from the vertical) above the disk with a velocity of ≈3.1 km s-1. It continues the trend of decreasing velocity for increasing distance from the jet axis ("onion-like velocity structure"). Conclusions: The new component is located close to the protostellar disk surface and may be related to photoevaporative winds. The reduced datacubes are only available at the CDS via anonymous ftp tohttp://cdsarc.u-strasbg.fr(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/620/L1

AB - Aims: We aim to use the high spatial resolution of the Atacama Large Millimeter/submillimeter Array (ALMA) to map the flow pattern of molecular gas near DG Tauri and its disk, a young stellar object driving a jet and a molecular outflow. Methods: We use observations fromALMA in the J = 2-1 transition of 12CO, 13CO, andC18O to study the Keplerian disk of DG Tauri and outflows that may be related to the disk and the jet. Results: We find anew wind component flowing radially at a steep angle (≈25° from the vertical) above the disk with a velocity of ≈3.1 km s-1. It continues the trend of decreasing velocity for increasing distance from the jet axis ("onion-like velocity structure"). Conclusions: The new component is located close to the protostellar disk surface and may be related to photoevaporative winds. The reduced datacubes are only available at the CDS via anonymous ftp tohttp://cdsarc.u-strasbg.fr(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/620/L1

KW - stars: pre-main sequence

KW - stars: winds

KW - outflows

KW - protoplanetary disks

U2 - 10.1051/0004-6361/201834271

DO - 10.1051/0004-6361/201834271

M3 - Comment/Letter to the editor

SN - 0004-6361

VL - 620

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - L1

ER -

ALMA detects a radial disk wind in DG Tauri

Abstract

Keywords

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ALMA detects a radial disk wind in DG Tauri (Corrigendum)

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