The JCMT Gould Belt survey: A first look at SCUBA-2 observations of the Lupus I molecular cloud

C. Mowat; J. Hatchell; D. Rumble; H. Kirk; J. Buckle; D. S. Berry; H. Broekhoven-Fiene; M. J. Currie; T. Jenness; D. Johnstone; J. C. Mottram; K. Pattle; S. Tisi; J. Di Francesco; M. R. Hogerheijde; D. Ward-Thompson; P. Bastien; D. Bresnahan; H. Butner; M. Chen; A. Chrysostomou; S. Coudé; C. J. Davis; E. Drabek-Maunder; A. Duarte-Cabral; M. Fich; J. Fiege; P. Friberg; R. Friesen; G. A. Fuller; S. Graves; J. Greaves; W. Holland; G. Joncas; J. M. Kirk; L. B.G. Knee; S. Mairs; K. Marsh; B. C. Matthews; G. Moriarty-Schieven; J. Rawlings; B. Retter; J. Richer; D. Robertson; E. Rosolowsky; S. Sadavoy; H. Thomas; N. Tothill; S. Viti; G. J. White; J. Wouterloot; J. Yates; M. Zhu

doi:10.1093/mnras/stx042

The JCMT Gould Belt survey: A first look at SCUBA-2 observations of the Lupus I molecular cloud

C. Mowat
, J. Hatchell
, D. Rumble
, H. Kirk
, J. Buckle
, D. S. Berry
, H. Broekhoven-Fiene
, M. J. Currie
, T. Jenness
, D. Johnstone
, J. C. Mottram
, K. Pattle
, S. Tisi
, J. Di Francesco
, M. R. Hogerheijde
, D. Ward-Thompson
, P. Bastien
, D. Bresnahan
, H. Butner
, M. Chen

A. Chrysostomou, S. Coudé, C. J. Davis, E. Drabek-Maunder, A. Duarte-Cabral, M. Fich, J. Fiege, P. Friberg, R. Friesen, G. A. Fuller, S. Graves, J. Greaves, W. Holland, G. Joncas, J. M. Kirk, L. B.G. Knee, S. Mairs, K. Marsh, B. C. Matthews, G. Moriarty-Schieven, J. Rawlings, B. Retter, J. Richer, D. Robertson, E. Rosolowsky, S. Sadavoy, H. Thomas, N. Tothill, S. Viti, G. J. White, J. Wouterloot, J. Yates, M. Zhu

University of Exeter
National Research Council Canada
Cavendish Laboratory
Institute of Astronomy
Joint Astronomy Centre
University of Victoria
LSST Project Office
Leiden University
Max Planck Institute for Astronomy
University of Central Lancashire
University of Waterloo
Université de Montréal
James Madison University
University of Hertfordshire
National Science Foundation
Imperial College London
Cardiff University
University of Manitoba
University of Toronto
University of Manchester
Royal Observatory
University of Edinburgh, Institute for Astronomy
Université Laval
University College London
McMaster University, Faculty of Science
University of Alberta
Harvard & Smithsonian
University of Western Sydney
The Open University
Rutherford Appleton Laboratory
National Astronomical Observatories Chinese Academy of Sciences

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

9 Citations (Scopus)

Abstract

This paper presents observations of the Lupus I molecular cloud at 450 and 850 μm with Submillimetre Common User Bolometer Array (SCUBA-2) as part of the James Clerk Maxwell Telescope Gould Belt Survey (JCMT GBS). Nine compact sources, assumed to be the discs of young stellar objects (YSOs), 12 extended protostellar, pre-stellar and starless cores, and one isolated, low-luminosity protostar, are detected in the region. Spectral energy distributions, including submillimetre fluxes, are produced for 15 YSOs, and each is fitted with the models of Robitaille et al. The proportion of Class 0/I protostars is higher than that seen in other Gould Belt regions such as Ophiuchus and Serpens. Circumstellar disc masses are calculated for more evolved sources, while protostellar envelope masses are calculated for protostars. Up to four very low luminosity objects are found; a large fraction when compared to other Spitzer c2d regions. One YSO has a disc mass greater than the minimum mass solar nebula. 12 starless/protostellar cores are detected by SCUBA-2 and their masses are calculated. The stability of these cores is examined using both the thermal Jeans mass and a turbulent virial mass when possible. Two cores in Lupus I are super-Jeans and contain no known YSOs. One of these cores has a virial parameter of 1.1 ± 0.4, and could therefore be pre-stellar. The high ratio of Class 0/I to Class III YSOs (1:1), and the presence of a pre-stellar core candidate, provides support for the hypothesis that a shock recently triggered star formation in Lupus I.

Original language	English
Pages (from-to)	812-835
Number of pages	24
Journal	Monthly Notices of the Royal Astronomical Society
Volume	467
Issue number	1
DOIs	https://doi.org/10.1093/mnras/stx042
Publication status	Published - 1 May 2017
Externally published	Yes

Keywords

Catalogues
ISM: structure
Stars: formation
Stars: pre-main-sequence
Stars: protostars
Submillimetre: general

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10.1093/mnras/stx042

Cite this

Mowat, C., Hatchell, J., Rumble, D., Kirk, H., Buckle, J., Berry, D. S., Broekhoven-Fiene, H., Currie, M. J., Jenness, T., Johnstone, D., Mottram, J. C., Pattle, K., Tisi, S., Di Francesco, J., Hogerheijde, M. R., Ward-Thompson, D., Bastien, P., Bresnahan, D., Butner, H., ... Zhu, M. (2017). The JCMT Gould Belt survey: A first look at SCUBA-2 observations of the Lupus I molecular cloud. Monthly Notices of the Royal Astronomical Society, 467(1), 812-835. https://doi.org/10.1093/mnras/stx042

@article{038eca1c567242adb6b887a5c999f0ce,

title = "The JCMT Gould Belt survey: A first look at SCUBA-2 observations of the Lupus I molecular cloud",

abstract = "This paper presents observations of the Lupus I molecular cloud at 450 and 850 μm with Submillimetre Common User Bolometer Array (SCUBA-2) as part of the James Clerk Maxwell Telescope Gould Belt Survey (JCMT GBS). Nine compact sources, assumed to be the discs of young stellar objects (YSOs), 12 extended protostellar, pre-stellar and starless cores, and one isolated, low-luminosity protostar, are detected in the region. Spectral energy distributions, including submillimetre fluxes, are produced for 15 YSOs, and each is fitted with the models of Robitaille et al. The proportion of Class 0/I protostars is higher than that seen in other Gould Belt regions such as Ophiuchus and Serpens. Circumstellar disc masses are calculated for more evolved sources, while protostellar envelope masses are calculated for protostars. Up to four very low luminosity objects are found; a large fraction when compared to other Spitzer c2d regions. One YSO has a disc mass greater than the minimum mass solar nebula. 12 starless/protostellar cores are detected by SCUBA-2 and their masses are calculated. The stability of these cores is examined using both the thermal Jeans mass and a turbulent virial mass when possible. Two cores in Lupus I are super-Jeans and contain no known YSOs. One of these cores has a virial parameter of 1.1 ± 0.4, and could therefore be pre-stellar. The high ratio of Class 0/I to Class III YSOs (1:1), and the presence of a pre-stellar core candidate, provides support for the hypothesis that a shock recently triggered star formation in Lupus I.",

keywords = "Catalogues, ISM: structure, Stars: formation, Stars: pre-main-sequence, Stars: protostars, Submillimetre: general",

author = "C. Mowat and J. Hatchell and D. Rumble and H. Kirk and J. Buckle and Berry, \{D. S.\} and H. Broekhoven-Fiene and Currie, \{M. J.\} and T. Jenness and D. Johnstone and Mottram, \{J. C.\} and K. Pattle and S. Tisi and \{Di Francesco\}, J. and Hogerheijde, \{M. R.\} and D. Ward-Thompson and P. Bastien and D. Bresnahan and H. Butner and M. Chen and A. Chrysostomou and S. Coud{\'e} and Davis, \{C. J.\} and E. Drabek-Maunder and A. Duarte-Cabral and M. Fich and J. Fiege and P. Friberg and R. Friesen and Fuller, \{G. A.\} and S. Graves and J. Greaves and W. Holland and G. Joncas and Kirk, \{J. M.\} and Knee, \{L. B.G.\} and S. Mairs and K. Marsh and Matthews, \{B. C.\} and G. Moriarty-Schieven and J. Rawlings and B. Retter and J. Richer and D. Robertson and E. Rosolowsky and S. Sadavoy and H. Thomas and N. Tothill and S. Viti and White, \{G. J.\} and J. Wouterloot and J. Yates and M. Zhu",

note = "Publisher Copyright: {\textcopyright} 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society",

year = "2017",

month = may,

day = "1",

doi = "10.1093/mnras/stx042",

language = "English",

volume = "467",

pages = "812--835",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

}

Mowat, C, Hatchell, J, Rumble, D, Kirk, H, Buckle, J, Berry, DS, Broekhoven-Fiene, H, Currie, MJ, Jenness, T, Johnstone, D, Mottram, JC, Pattle, K, Tisi, S, Di Francesco, J, Hogerheijde, MR, Ward-Thompson, D, Bastien, P, Bresnahan, D, Butner, H, Chen, M, Chrysostomou, A, Coudé, S, Davis, CJ, Drabek-Maunder, E, Duarte-Cabral, A, Fich, M, Fiege, J, Friberg, P, Friesen, R, Fuller, GA, Graves, S, Greaves, J, Holland, W, Joncas, G, Kirk, JM, Knee, LBG, Mairs, S, Marsh, K, Matthews, BC, Moriarty-Schieven, G, Rawlings, J, Retter, B, Richer, J, Robertson, D, Rosolowsky, E, Sadavoy, S, Thomas, H, Tothill, N, Viti, S, White, GJ, Wouterloot, J, Yates, J & Zhu, M 2017, 'The JCMT Gould Belt survey: A first look at SCUBA-2 observations of the Lupus I molecular cloud', Monthly Notices of the Royal Astronomical Society, vol. 467, no. 1, pp. 812-835. https://doi.org/10.1093/mnras/stx042

TY - JOUR

T1 - The JCMT Gould Belt survey

T2 - A first look at SCUBA-2 observations of the Lupus I molecular cloud

AU - Mowat, C.

AU - Hatchell, J.

AU - Rumble, D.

AU - Kirk, H.

AU - Buckle, J.

AU - Berry, D. S.

AU - Broekhoven-Fiene, H.

AU - Currie, M. J.

AU - Jenness, T.

AU - Johnstone, D.

AU - Mottram, J. C.

AU - Pattle, K.

AU - Tisi, S.

AU - Di Francesco, J.

AU - Hogerheijde, M. R.

AU - Ward-Thompson, D.

AU - Bastien, P.

AU - Bresnahan, D.

AU - Butner, H.

AU - Chen, M.

AU - Chrysostomou, A.

AU - Coudé, S.

AU - Davis, C. J.

AU - Drabek-Maunder, E.

AU - Duarte-Cabral, A.

AU - Fich, M.

AU - Fiege, J.

AU - Friberg, P.

AU - Friesen, R.

AU - Fuller, G. A.

AU - Graves, S.

AU - Greaves, J.

AU - Holland, W.

AU - Joncas, G.

AU - Kirk, J. M.

AU - Knee, L. B.G.

AU - Mairs, S.

AU - Marsh, K.

AU - Matthews, B. C.

AU - Moriarty-Schieven, G.

AU - Rawlings, J.

AU - Retter, B.

AU - Richer, J.

AU - Robertson, D.

AU - Rosolowsky, E.

AU - Sadavoy, S.

AU - Thomas, H.

AU - Tothill, N.

AU - Viti, S.

AU - White, G. J.

AU - Wouterloot, J.

AU - Yates, J.

AU - Zhu, M.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - This paper presents observations of the Lupus I molecular cloud at 450 and 850 μm with Submillimetre Common User Bolometer Array (SCUBA-2) as part of the James Clerk Maxwell Telescope Gould Belt Survey (JCMT GBS). Nine compact sources, assumed to be the discs of young stellar objects (YSOs), 12 extended protostellar, pre-stellar and starless cores, and one isolated, low-luminosity protostar, are detected in the region. Spectral energy distributions, including submillimetre fluxes, are produced for 15 YSOs, and each is fitted with the models of Robitaille et al. The proportion of Class 0/I protostars is higher than that seen in other Gould Belt regions such as Ophiuchus and Serpens. Circumstellar disc masses are calculated for more evolved sources, while protostellar envelope masses are calculated for protostars. Up to four very low luminosity objects are found; a large fraction when compared to other Spitzer c2d regions. One YSO has a disc mass greater than the minimum mass solar nebula. 12 starless/protostellar cores are detected by SCUBA-2 and their masses are calculated. The stability of these cores is examined using both the thermal Jeans mass and a turbulent virial mass when possible. Two cores in Lupus I are super-Jeans and contain no known YSOs. One of these cores has a virial parameter of 1.1 ± 0.4, and could therefore be pre-stellar. The high ratio of Class 0/I to Class III YSOs (1:1), and the presence of a pre-stellar core candidate, provides support for the hypothesis that a shock recently triggered star formation in Lupus I.

AB - This paper presents observations of the Lupus I molecular cloud at 450 and 850 μm with Submillimetre Common User Bolometer Array (SCUBA-2) as part of the James Clerk Maxwell Telescope Gould Belt Survey (JCMT GBS). Nine compact sources, assumed to be the discs of young stellar objects (YSOs), 12 extended protostellar, pre-stellar and starless cores, and one isolated, low-luminosity protostar, are detected in the region. Spectral energy distributions, including submillimetre fluxes, are produced for 15 YSOs, and each is fitted with the models of Robitaille et al. The proportion of Class 0/I protostars is higher than that seen in other Gould Belt regions such as Ophiuchus and Serpens. Circumstellar disc masses are calculated for more evolved sources, while protostellar envelope masses are calculated for protostars. Up to four very low luminosity objects are found; a large fraction when compared to other Spitzer c2d regions. One YSO has a disc mass greater than the minimum mass solar nebula. 12 starless/protostellar cores are detected by SCUBA-2 and their masses are calculated. The stability of these cores is examined using both the thermal Jeans mass and a turbulent virial mass when possible. Two cores in Lupus I are super-Jeans and contain no known YSOs. One of these cores has a virial parameter of 1.1 ± 0.4, and could therefore be pre-stellar. The high ratio of Class 0/I to Class III YSOs (1:1), and the presence of a pre-stellar core candidate, provides support for the hypothesis that a shock recently triggered star formation in Lupus I.

KW - Catalogues

KW - ISM: structure

KW - Stars: formation

KW - Stars: pre-main-sequence

KW - Stars: protostars

KW - Submillimetre: general

UR - https://www.scopus.com/pages/publications/85054050627

U2 - 10.1093/mnras/stx042

DO - 10.1093/mnras/stx042

M3 - Article

AN - SCOPUS:85054050627

SN - 0035-8711

VL - 467

SP - 812

EP - 835

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

The JCMT Gould Belt survey: A first look at SCUBA-2 observations of the Lupus I molecular cloud

Abstract

Keywords

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