A substellar-mass protostar and its outflow of IRAS 15398-3359 revealed by subarcsecond-resolution observations of H2CO and CCH

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A substellar-mass protostar and its outflow of IRAS 15398-3359 revealed by subarcsecond-resolution observations of H2CO and CCH. / Oya, Yoko; Sakai, Nami; Sakai, Takeshi; Watanabe, Yoshimasa; Hirota, Tomoya; Lindberg, Johan; Bisschop, Suzanne Elisabeth; Jørgensen, Jes Kristian; van Dishoeck, Ewine F.; Yamamoto, Satoshi.

In: Astrophysical Journal, Vol. 795, No. 2, 152, 2014.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Oya, Y, Sakai, N, Sakai, T, Watanabe, Y, Hirota, T, Lindberg, J, Bisschop, SE, Jørgensen, JK, van Dishoeck, EF & Yamamoto, S 2014, 'A substellar-mass protostar and its outflow of IRAS 15398-3359 revealed by subarcsecond-resolution observations of H2CO and CCH', Astrophysical Journal, vol. 795, no. 2, 152. https://doi.org/10.1088/0004-637X/795/2/152

APA

Oya, Y., Sakai, N., Sakai, T., Watanabe, Y., Hirota, T., Lindberg, J., Bisschop, S. E., Jørgensen, J. K., van Dishoeck, E. F., & Yamamoto, S. (2014). A substellar-mass protostar and its outflow of IRAS 15398-3359 revealed by subarcsecond-resolution observations of H2CO and CCH. Astrophysical Journal, 795(2), [152]. https://doi.org/10.1088/0004-637X/795/2/152

Vancouver

Oya Y, Sakai N, Sakai T, Watanabe Y, Hirota T, Lindberg J et al. A substellar-mass protostar and its outflow of IRAS 15398-3359 revealed by subarcsecond-resolution observations of H2CO and CCH. Astrophysical Journal. 2014;795(2). 152. https://doi.org/10.1088/0004-637X/795/2/152

Author

Oya, Yoko ; Sakai, Nami ; Sakai, Takeshi ; Watanabe, Yoshimasa ; Hirota, Tomoya ; Lindberg, Johan ; Bisschop, Suzanne Elisabeth ; Jørgensen, Jes Kristian ; van Dishoeck, Ewine F. ; Yamamoto, Satoshi. / A substellar-mass protostar and its outflow of IRAS 15398-3359 revealed by subarcsecond-resolution observations of H2CO and CCH. In: Astrophysical Journal. 2014 ; Vol. 795, No. 2.

Bibtex

@article{5afef82104e04878ab209bbfd7863ab9,
title = "A substellar-mass protostar and its outflow of IRAS 15398-3359 revealed by subarcsecond-resolution observations of H2CO and CCH",
abstract = "Subarcsecond (0.''5) images of H2CO and CCH line emission have been obtained in the 0.8 mm band toward the low-mass protostar IRAS 15398–3359 in the Lupus 1 cloud as one of the Cycle 0 projects of the Atacama Large Millimeter/Submillimeter Array. We have detected a compact component concentrated in the vicinity of the protostar and a well-collimated outflow cavity extending along the northeast-southwest axis. The inclination angle of the outflow is found to be about 20°, or almost edge-on, based on the kinematic structure of the outflow cavity. This is in contrast to previous suggestions of a more pole-on geometry. The centrally concentrated component is interpreted by use of a model of the infalling rotating envelope with the estimated inclination angle and the mass of the protostar is estimated to be less than 0.09 M ☉. Higher spatial resolution data are needed to infer the presence of a rotationally supported disk for this source, hinted at by a weak high-velocity H2CO emission associated with the protostar.",
author = "Yoko Oya and Nami Sakai and Takeshi Sakai and Yoshimasa Watanabe and Tomoya Hirota and Johan Lindberg and Bisschop, {Suzanne Elisabeth} and J{\o}rgensen, {Jes Kristian} and {van Dishoeck}, {Ewine F.} and Satoshi Yamamoto",
year = "2014",
doi = "10.1088/0004-637X/795/2/152",
language = "English",
volume = "795",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing, Inc",
number = "2",

}

RIS

TY - JOUR

T1 - A substellar-mass protostar and its outflow of IRAS 15398-3359 revealed by subarcsecond-resolution observations of H2CO and CCH

AU - Oya, Yoko

AU - Sakai, Nami

AU - Sakai, Takeshi

AU - Watanabe, Yoshimasa

AU - Hirota, Tomoya

AU - Lindberg, Johan

AU - Bisschop, Suzanne Elisabeth

AU - Jørgensen, Jes Kristian

AU - van Dishoeck, Ewine F.

AU - Yamamoto, Satoshi

PY - 2014

Y1 - 2014

N2 - Subarcsecond (0.''5) images of H2CO and CCH line emission have been obtained in the 0.8 mm band toward the low-mass protostar IRAS 15398–3359 in the Lupus 1 cloud as one of the Cycle 0 projects of the Atacama Large Millimeter/Submillimeter Array. We have detected a compact component concentrated in the vicinity of the protostar and a well-collimated outflow cavity extending along the northeast-southwest axis. The inclination angle of the outflow is found to be about 20°, or almost edge-on, based on the kinematic structure of the outflow cavity. This is in contrast to previous suggestions of a more pole-on geometry. The centrally concentrated component is interpreted by use of a model of the infalling rotating envelope with the estimated inclination angle and the mass of the protostar is estimated to be less than 0.09 M ☉. Higher spatial resolution data are needed to infer the presence of a rotationally supported disk for this source, hinted at by a weak high-velocity H2CO emission associated with the protostar.

AB - Subarcsecond (0.''5) images of H2CO and CCH line emission have been obtained in the 0.8 mm band toward the low-mass protostar IRAS 15398–3359 in the Lupus 1 cloud as one of the Cycle 0 projects of the Atacama Large Millimeter/Submillimeter Array. We have detected a compact component concentrated in the vicinity of the protostar and a well-collimated outflow cavity extending along the northeast-southwest axis. The inclination angle of the outflow is found to be about 20°, or almost edge-on, based on the kinematic structure of the outflow cavity. This is in contrast to previous suggestions of a more pole-on geometry. The centrally concentrated component is interpreted by use of a model of the infalling rotating envelope with the estimated inclination angle and the mass of the protostar is estimated to be less than 0.09 M ☉. Higher spatial resolution data are needed to infer the presence of a rotationally supported disk for this source, hinted at by a weak high-velocity H2CO emission associated with the protostar.

U2 - 10.1088/0004-637X/795/2/152

DO - 10.1088/0004-637X/795/2/152

M3 - Journal article

VL - 795

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 152

ER -

ID: 138819299