From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey

Ph Andre; A. Men'shchikov; S. Bontemps; V. Koenyves; F. Motte; N. Schneider; P. Didelon; V. Minier; P. Saraceno; D. Ward-Thompson; J. Di Francesco; G. White; S. Molinari; L. Testi; A. Abergel; Mary Griffin; Th. Henning; P. Royer; Bruno  Merin; R. Vavrek; M. Attard; D. Arzoumanian; C. D. Wilson; P. Ade; H. Aussel; J. P. Baluteau; M. Benedettini; J. Ph Bernard; J. A. D. L. Blommaert; L. Cambresy; P. Cox; A. Di Giorgio; P. Hargrave; M. Hennemann; Minyun Huang; K. J. Kirk; O. Krause; R. Launhardt; S. Leeks; J. Le Pennec; J. Z. Li; P. G. Martin; A. Maury; G. Olofsson; A. Omont; N. Peretto; S. Pezzuto; T. Prusti; H. Roussel; D. Russeil; M. Sauvage; B. Sibthorpe; A. Sicilia-Aguilar; L. Spinoglio; C. Waelkens; A. Woodcraft; A. Zavagno

doi:10.1051/0004-6361/201014666

From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey

Ph Andre, A. Men'shchikov, S. Bontemps, V. Koenyves, F. Motte, N. Schneider, P. Didelon, V. Minier, P. Saraceno, D. Ward-Thompson, J. Di Francesco, G. White, S. Molinari, L. Testi, A. Abergel, Mary Griffin, Th. Henning, P. Royer, Bruno Merin, R. VavrekM. Attard, D. Arzoumanian, C. D. Wilson, P. Ade, H. Aussel, J. P. Baluteau, M. Benedettini, J. Ph Bernard, J. A. D. L. Blommaert, L. Cambresy, P. Cox, A. Di Giorgio, P. Hargrave, M. Hennemann, Minyun Huang, K. J. Kirk, O. Krause, R. Launhardt, S. Leeks, J. Le Pennec, J. Z. Li, P. G. Martin, A. Maury, G. Olofsson, A. Omont, N. Peretto, S. Pezzuto, T. Prusti, H. Roussel, D. Russeil, M. Sauvage, B. Sibthorpe, A. Sicilia-Aguilar, L. Spinoglio, C. Waelkens, A. Woodcraft, A. Zavagno

Physics

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

1146 Citations (Scopus)

Abstract

We summarize the first results from the Gould Belt Survey, obtained toward the Aquila rift and Polaris Flare regions during the science demonstration phase of Herschel. Our 70-500 mu m images taken in parallel mode with the SPIRE and PACS cameras reveal a wealth of filamentary structure, as well as numerous dense cores embedded in the filaments. Between similar to 350 and 500 prestellar cores and similar to 45-60 Class 0 protostars can be identified in the Aquila field, while similar to 300 unbound starless cores and no protostars are observed in the Polaris field. The prestellar core mass function (CMF) derived for the Aquila region bears a strong resemblance to the stellar initial mass function (IMF), already confirming the close connection between the CMF and the IMF with much better statistics than earlier studies. Comparing and contrasting our Herschel results in Aquila and Polaris, we propose an observationally-driven scenario for core formation according to which complex networks of long, thin filaments form first within molecular clouds, and then the densest filaments fragment into a number of prestellar cores via gravitational instability.

Original language	English
Article number	L102
Number of pages	7
Journal	Astronomy & Astrophysics
Volume	518
DOIs	https://doi.org/10.1051/0004-6361/201014666
Publication status	Published - 16 Jul 2010

Keywords

stars: formation circumstellar matter ISM: clouds ISM: structure submillimeter: ISM OPHIUCHI MOLECULAR CLOUD MASS FUNCTION INTERSTELLAR CLOUDS SCUBA SURVEY PROTOSTARS FRAGMENTATION EMISSION SPECTRA CLUSTER ORIGIN

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Andre, P., Men'shchikov, A., Bontemps, S., Koenyves, V., Motte, F., Schneider, N., Didelon, P., Minier, V., Saraceno, P., Ward-Thompson, D., Di Francesco, J., White, G., Molinari, S., Testi, L., Abergel, A., Griffin, M., Henning, T., Royer, P., Merin, B., ... Zavagno, A. (2010). From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey. Astronomy & Astrophysics, 518, Article L102. https://doi.org/10.1051/0004-6361/201014666

@article{bd1166aa72534e3481176d2e84c87e69,

title = "From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey",

abstract = "We summarize the first results from the Gould Belt Survey, obtained toward the Aquila rift and Polaris Flare regions during the science demonstration phase of Herschel. Our 70-500 mu m images taken in parallel mode with the SPIRE and PACS cameras reveal a wealth of filamentary structure, as well as numerous dense cores embedded in the filaments. Between similar to 350 and 500 prestellar cores and similar to 45-60 Class 0 protostars can be identified in the Aquila field, while similar to 300 unbound starless cores and no protostars are observed in the Polaris field. The prestellar core mass function (CMF) derived for the Aquila region bears a strong resemblance to the stellar initial mass function (IMF), already confirming the close connection between the CMF and the IMF with much better statistics than earlier studies. Comparing and contrasting our Herschel results in Aquila and Polaris, we propose an observationally-driven scenario for core formation according to which complex networks of long, thin filaments form first within molecular clouds, and then the densest filaments fragment into a number of prestellar cores via gravitational instability.",

keywords = "stars: formation circumstellar matter ISM: clouds ISM: structure submillimeter: ISM OPHIUCHI MOLECULAR CLOUD MASS FUNCTION INTERSTELLAR CLOUDS SCUBA SURVEY PROTOSTARS FRAGMENTATION EMISSION SPECTRA CLUSTER ORIGIN",

author = "Ph Andre and A. Men'shchikov and S. Bontemps and V. Koenyves and F. Motte and N. Schneider and P. Didelon and V. Minier and P. Saraceno and D. Ward-Thompson and {Di Francesco}, J. and G. White and S. Molinari and L. Testi and A. Abergel and Mary Griffin and Th. Henning and P. Royer and Bruno Merin and R. Vavrek and M. Attard and D. Arzoumanian and Wilson, {C. D.} and P. Ade and H. Aussel and Baluteau, {J. P.} and M. Benedettini and Bernard, {J. Ph} and Blommaert, {J. A. D. L.} and L. Cambresy and P. Cox and {Di Giorgio}, A. and P. Hargrave and M. Hennemann and Minyun Huang and Kirk, {K. J.} and O. Krause and R. Launhardt and S. Leeks and {Le Pennec}, J. and Li, {J. Z.} and Martin, {P. G.} and A. Maury and G. Olofsson and A. Omont and N. Peretto and S. Pezzuto and T. Prusti and H. Roussel and D. Russeil and M. Sauvage and B. Sibthorpe and A. Sicilia-Aguilar and L. Spinoglio and C. Waelkens and A. Woodcraft and A. Zavagno",

year = "2010",

month = jul,

day = "16",

doi = "10.1051/0004-6361/201014666",

language = "English",

volume = "518",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Andre, P, Men'shchikov, A, Bontemps, S, Koenyves, V, Motte, F, Schneider, N, Didelon, P, Minier, V, Saraceno, P, Ward-Thompson, D, Di Francesco, J, White, G, Molinari, S, Testi, L, Abergel, A, Griffin, M, Henning, T, Royer, P, Merin, B, Vavrek, R, Attard, M, Arzoumanian, D, Wilson, CD, Ade, P, Aussel, H, Baluteau, JP, Benedettini, M, Bernard, JP, Blommaert, JADL, Cambresy, L, Cox, P, Di Giorgio, A, Hargrave, P, Hennemann, M, Huang, M, Kirk, KJ, Krause, O, Launhardt, R, Leeks, S, Le Pennec, J, Li, JZ, Martin, PG, Maury, A, Olofsson, G, Omont, A, Peretto, N, Pezzuto, S, Prusti, T, Roussel, H, Russeil, D, Sauvage, M, Sibthorpe, B, Sicilia-Aguilar, A, Spinoglio, L, Waelkens, C, Woodcraft, A & Zavagno, A 2010, 'From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey', Astronomy & Astrophysics, vol. 518, L102. https://doi.org/10.1051/0004-6361/201014666

TY - JOUR

T1 - From filamentary clouds to prestellar cores to the stellar IMF

T2 - Initial highlights from the Herschel Gould Belt Survey

AU - Andre, Ph

AU - Men'shchikov, A.

AU - Bontemps, S.

AU - Koenyves, V.

AU - Motte, F.

AU - Schneider, N.

AU - Didelon, P.

AU - Minier, V.

AU - Saraceno, P.

AU - Ward-Thompson, D.

AU - Di Francesco, J.

AU - White, G.

AU - Molinari, S.

AU - Testi, L.

AU - Abergel, A.

AU - Griffin, Mary

AU - Henning, Th.

AU - Royer, P.

AU - Merin, Bruno

AU - Vavrek, R.

AU - Attard, M.

AU - Arzoumanian, D.

AU - Wilson, C. D.

AU - Ade, P.

AU - Aussel, H.

AU - Baluteau, J. P.

AU - Benedettini, M.

AU - Bernard, J. Ph

AU - Blommaert, J. A. D. L.

AU - Cambresy, L.

AU - Cox, P.

AU - Di Giorgio, A.

AU - Hargrave, P.

AU - Hennemann, M.

AU - Huang, Minyun

AU - Kirk, K. J.

AU - Krause, O.

AU - Launhardt, R.

AU - Leeks, S.

AU - Le Pennec, J.

AU - Li, J. Z.

AU - Martin, P. G.

AU - Maury, A.

AU - Olofsson, G.

AU - Omont, A.

AU - Peretto, N.

AU - Pezzuto, S.

AU - Prusti, T.

AU - Roussel, H.

AU - Russeil, D.

AU - Sauvage, M.

AU - Sibthorpe, B.

AU - Sicilia-Aguilar, A.

AU - Spinoglio, L.

AU - Waelkens, C.

AU - Woodcraft, A.

AU - Zavagno, A.

PY - 2010/7/16

Y1 - 2010/7/16

N2 - We summarize the first results from the Gould Belt Survey, obtained toward the Aquila rift and Polaris Flare regions during the science demonstration phase of Herschel. Our 70-500 mu m images taken in parallel mode with the SPIRE and PACS cameras reveal a wealth of filamentary structure, as well as numerous dense cores embedded in the filaments. Between similar to 350 and 500 prestellar cores and similar to 45-60 Class 0 protostars can be identified in the Aquila field, while similar to 300 unbound starless cores and no protostars are observed in the Polaris field. The prestellar core mass function (CMF) derived for the Aquila region bears a strong resemblance to the stellar initial mass function (IMF), already confirming the close connection between the CMF and the IMF with much better statistics than earlier studies. Comparing and contrasting our Herschel results in Aquila and Polaris, we propose an observationally-driven scenario for core formation according to which complex networks of long, thin filaments form first within molecular clouds, and then the densest filaments fragment into a number of prestellar cores via gravitational instability.

AB - We summarize the first results from the Gould Belt Survey, obtained toward the Aquila rift and Polaris Flare regions during the science demonstration phase of Herschel. Our 70-500 mu m images taken in parallel mode with the SPIRE and PACS cameras reveal a wealth of filamentary structure, as well as numerous dense cores embedded in the filaments. Between similar to 350 and 500 prestellar cores and similar to 45-60 Class 0 protostars can be identified in the Aquila field, while similar to 300 unbound starless cores and no protostars are observed in the Polaris field. The prestellar core mass function (CMF) derived for the Aquila region bears a strong resemblance to the stellar initial mass function (IMF), already confirming the close connection between the CMF and the IMF with much better statistics than earlier studies. Comparing and contrasting our Herschel results in Aquila and Polaris, we propose an observationally-driven scenario for core formation according to which complex networks of long, thin filaments form first within molecular clouds, and then the densest filaments fragment into a number of prestellar cores via gravitational instability.

KW - stars: formation circumstellar matter ISM: clouds ISM: structure submillimeter: ISM OPHIUCHI MOLECULAR CLOUD MASS FUNCTION INTERSTELLAR CLOUDS SCUBA SURVEY PROTOSTARS FRAGMENTATION EMISSION SPECTRA CLUSTER ORIGIN

U2 - 10.1051/0004-6361/201014666

DO - 10.1051/0004-6361/201014666

M3 - Letter

SN - 0004-6361

VL - 518

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - L102

ER -

From filamentary clouds to prestellar cores to the stellar IMF: Initial highlights from the Herschel Gould Belt Survey

Abstract

Keywords

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