The JCMT Gould Belt Survey : a first look at the Auriga-California molecular cloud with SCUBA-2

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

doi:10.3847/1538-4357/aa911f

The JCMT Gould Belt Survey : a first look at the Auriga-California molecular cloud with SCUBA-2

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

Western Sydney University

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

Abstract

We present 850 and 450 mu m observations of the dense regions within the Auriga-California molecular cloud using SCUBA-2 as part of the JCMT Gould Belt Legacy Survey to identify candidate protostellar objects, measure the masses of their circumstellar material (disk and envelope), and compare the star formation to that in the Orion A molecular cloud. We identify 59 candidate protostars based on the presence of compact submillimeter emission, complementing these observations with existing Herschel/SPIRE maps. Of our candidate protostars, 24 are associated with young stellar objects (YSOs) in the Spitzer and Herschel/PACS catalogs of 166 and 60 YSOs, respectively (177 unique), confirming their protostellar nature. The remaining 35 candidate protostars are in regions, particularly around LkH alpha 101, where the background cloud emission is too bright to verify or rule out the presence of the compact 70 mu m emission that is expected for a protostellar source. We keep these candidate protostars in our sample but note that they may indeed be prestellar in nature. Our observations are sensitive to the high end of the mass distribution in Auriga-Cal. We find that the disparity between the richness of infrared star-forming objects in Orion A and the sparsity in Auriga-Cal extends to the submillimeter, suggesting that the relative star formation rates have not varied over the Class II lifetime and that Auriga-Cal will maintain a lower star formation efficiency.

Original language	English
Article number	73
Number of pages	20
Journal	Astrophysical Journal
Volume	852
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aa911f
Publication status	Published - 2018

Keywords

clouds
formation
interstellar matter
stars
submillimeter astronomy

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10.3847/1538-4357/aa911f

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Broekhoven-Fiene, H., Matthews, B. C., Harvey, P., Kirk, H., Chen, M., Currie, M. J., Pattle, K., Lane, J., Buckle, J., Di Francesco, J., Drabek-Maunder, E., Johnstone, D., Berry, D. S., Fich, M., Hatchell, J., Jenness, T., Mottram, J. C., Nutter, D., Pineda, J. E., ... Zhu, M. (2018). The JCMT Gould Belt Survey : a first look at the Auriga-California molecular cloud with SCUBA-2. Astrophysical Journal, 852(2), Article 73. https://doi.org/10.3847/1538-4357/aa911f

@article{9f1dc1cdcfc34d3ea968b84f6af253dc,

title = "The JCMT Gould Belt Survey : a first look at the Auriga-California molecular cloud with SCUBA-2",

abstract = "We present 850 and 450 mu m observations of the dense regions within the Auriga-California molecular cloud using SCUBA-2 as part of the JCMT Gould Belt Legacy Survey to identify candidate protostellar objects, measure the masses of their circumstellar material (disk and envelope), and compare the star formation to that in the Orion A molecular cloud. We identify 59 candidate protostars based on the presence of compact submillimeter emission, complementing these observations with existing Herschel/SPIRE maps. Of our candidate protostars, 24 are associated with young stellar objects (YSOs) in the Spitzer and Herschel/PACS catalogs of 166 and 60 YSOs, respectively (177 unique), confirming their protostellar nature. The remaining 35 candidate protostars are in regions, particularly around LkH alpha 101, where the background cloud emission is too bright to verify or rule out the presence of the compact 70 mu m emission that is expected for a protostellar source. We keep these candidate protostars in our sample but note that they may indeed be prestellar in nature. Our observations are sensitive to the high end of the mass distribution in Auriga-Cal. We find that the disparity between the richness of infrared star-forming objects in Orion A and the sparsity in Auriga-Cal extends to the submillimeter, suggesting that the relative star formation rates have not varied over the Class II lifetime and that Auriga-Cal will maintain a lower star formation efficiency.",

keywords = "clouds, formation, interstellar matter, stars, submillimeter astronomy",

author = "H. Broekhoven-Fiene and Matthews, {B. C.} and P. Harvey and H. Kirk and M. Chen and Currie, {M. J.} and K. Pattle and J. Lane and J. Buckle and {Di Francesco}, J. and E. Drabek-Maunder and D. Johnstone and Berry, {D. S.} and M. Fich and J. Hatchell and T. Jenness and Mottram, {J. C.} and D. Nutter and Pineda, {J. E.} and C. Quinn and C. Salji and S. Tisi and Hogerheijde, {M. R.} and D. Ward-Thompson and P. Bastien and D. Bresnahan and H. Butner and A. Chrysostomou and S. Coude and Davis, {C. J.} and A. Duarte-Cabral and J. Fiege and P. Friberg and R. Friesen and Fuller, {G. A.} and S. Graves and J. Greaves and J. Gregson and W. Holland and G. Joncas and Kirk, {J. M.} and Knee, {L. B. G.} and S. Mairs and K. Marsh and G. Moriarty-Schieven and C. Mowat and J. Rawlings and J. Richer and D. Robertson and E. Rosolowsky and D. Rumble and S. Sadavoy and H. Thomas and N. Tothill and S. Viti and White, {G. J.} and Wilson, {C. D.} and J. Wouterloot and J. Yates and M. Zhu",

year = "2018",

doi = "10.3847/1538-4357/aa911f",

language = "English",

volume = "852",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "Institute of Physics Publishing",

number = "2",

}

Broekhoven-Fiene, H, Matthews, BC, Harvey, P, Kirk, H, Chen, M, Currie, MJ, Pattle, K, Lane, J, Buckle, J, Di Francesco, J, Drabek-Maunder, E, Johnstone, D, Berry, DS, Fich, M, Hatchell, J, Jenness, T, Mottram, JC, Nutter, D, Pineda, JE, Quinn, C, Salji, C, Tisi, S, Hogerheijde, MR, Ward-Thompson, D, Bastien, P, Bresnahan, D, Butner, H, Chrysostomou, A, Coude, S, Davis, CJ, Duarte-Cabral, A, Fiege, J, Friberg, P, Friesen, R, Fuller, GA, Graves, S, Greaves, J, Gregson, J, Holland, W, Joncas, G, Kirk, JM, Knee, LBG, Mairs, S, Marsh, K, Moriarty-Schieven, G, Mowat, C, Rawlings, J, Richer, J, Robertson, D, Rosolowsky, E, Rumble, D, Sadavoy, S, Thomas, H, Tothill, N, Viti, S, White, GJ, Wilson, CD, Wouterloot, J, Yates, J & Zhu, M 2018, 'The JCMT Gould Belt Survey : a first look at the Auriga-California molecular cloud with SCUBA-2', Astrophysical Journal, vol. 852, no. 2, 73. https://doi.org/10.3847/1538-4357/aa911f

TY - JOUR

T1 - The JCMT Gould Belt Survey : a first look at the Auriga-California molecular cloud with SCUBA-2

AU - Broekhoven-Fiene, H.

AU - Matthews, B. C.

AU - Harvey, P.

AU - Kirk, H.

AU - Chen, M.

AU - Currie, M. J.

AU - Pattle, K.

AU - Lane, J.

AU - Buckle, J.

AU - Di Francesco, J.

AU - Drabek-Maunder, E.

AU - Johnstone, D.

AU - Berry, D. S.

AU - Fich, M.

AU - Hatchell, J.

AU - Jenness, T.

AU - Mottram, J. C.

AU - Nutter, D.

AU - Pineda, J. E.

AU - Quinn, C.

AU - Salji, C.

AU - Tisi, S.

AU - Hogerheijde, M. R.

AU - Ward-Thompson, D.

AU - Bastien, P.

AU - Bresnahan, D.

AU - Butner, H.

AU - Chrysostomou, A.

AU - Coude, S.

AU - Davis, C. J.

AU - Duarte-Cabral, A.

AU - Fiege, J.

AU - Friberg, P.

AU - Friesen, R.

AU - Fuller, G. A.

AU - Graves, S.

AU - Greaves, J.

AU - Gregson, J.

AU - Holland, W.

AU - Joncas, G.

AU - Kirk, J. M.

AU - Knee, L. B. G.

AU - Mairs, S.

AU - Marsh, K.

AU - Moriarty-Schieven, G.

AU - Mowat, C.

AU - Rawlings, J.

AU - Richer, J.

AU - Robertson, D.

AU - Rosolowsky, E.

AU - Rumble, D.

AU - Sadavoy, S.

AU - Thomas, H.

AU - Tothill, N.

AU - Viti, S.

AU - White, G. J.

AU - Wilson, C. D.

AU - Wouterloot, J.

AU - Yates, J.

AU - Zhu, M.

PY - 2018

Y1 - 2018

N2 - We present 850 and 450 mu m observations of the dense regions within the Auriga-California molecular cloud using SCUBA-2 as part of the JCMT Gould Belt Legacy Survey to identify candidate protostellar objects, measure the masses of their circumstellar material (disk and envelope), and compare the star formation to that in the Orion A molecular cloud. We identify 59 candidate protostars based on the presence of compact submillimeter emission, complementing these observations with existing Herschel/SPIRE maps. Of our candidate protostars, 24 are associated with young stellar objects (YSOs) in the Spitzer and Herschel/PACS catalogs of 166 and 60 YSOs, respectively (177 unique), confirming their protostellar nature. The remaining 35 candidate protostars are in regions, particularly around LkH alpha 101, where the background cloud emission is too bright to verify or rule out the presence of the compact 70 mu m emission that is expected for a protostellar source. We keep these candidate protostars in our sample but note that they may indeed be prestellar in nature. Our observations are sensitive to the high end of the mass distribution in Auriga-Cal. We find that the disparity between the richness of infrared star-forming objects in Orion A and the sparsity in Auriga-Cal extends to the submillimeter, suggesting that the relative star formation rates have not varied over the Class II lifetime and that Auriga-Cal will maintain a lower star formation efficiency.

AB - We present 850 and 450 mu m observations of the dense regions within the Auriga-California molecular cloud using SCUBA-2 as part of the JCMT Gould Belt Legacy Survey to identify candidate protostellar objects, measure the masses of their circumstellar material (disk and envelope), and compare the star formation to that in the Orion A molecular cloud. We identify 59 candidate protostars based on the presence of compact submillimeter emission, complementing these observations with existing Herschel/SPIRE maps. Of our candidate protostars, 24 are associated with young stellar objects (YSOs) in the Spitzer and Herschel/PACS catalogs of 166 and 60 YSOs, respectively (177 unique), confirming their protostellar nature. The remaining 35 candidate protostars are in regions, particularly around LkH alpha 101, where the background cloud emission is too bright to verify or rule out the presence of the compact 70 mu m emission that is expected for a protostellar source. We keep these candidate protostars in our sample but note that they may indeed be prestellar in nature. Our observations are sensitive to the high end of the mass distribution in Auriga-Cal. We find that the disparity between the richness of infrared star-forming objects in Orion A and the sparsity in Auriga-Cal extends to the submillimeter, suggesting that the relative star formation rates have not varied over the Class II lifetime and that Auriga-Cal will maintain a lower star formation efficiency.

KW - clouds

KW - formation

KW - interstellar matter

KW - stars

KW - submillimeter astronomy

UR - http://handle.westernsydney.edu.au:8081/1959.7/uws:45640

U2 - 10.3847/1538-4357/aa911f

DO - 10.3847/1538-4357/aa911f

M3 - Article

SN - 0004-637X

VL - 852

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 73

ER -

The JCMT Gould Belt Survey : a first look at the Auriga-California molecular cloud with SCUBA-2

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Keywords

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