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; M. Griffin; Th. Henning; P. Royer; B. 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; M. Huang; 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, M. Griffin, Th. Henning, P. Royer, B. 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, M. Huang, 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

^*Corresponding author for this work

School of Physics and Astronomy

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

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	102
Number of pages	7
Journal	Astronomy & Astrophysics
Volume	518
DOIs	https://doi.org/10.1051/0004-6361/201014666
Publication status	Published - 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 102. https://doi.org/10.1051/0004-6361/201014666

@article{8f38e89282a64770b3bd62717cbf6c6e,

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 M. Griffin and Th. Henning and P. Royer and B. 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 M. Huang and J. Kirk 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",

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

language = "English",

volume = "518",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES S A",

}

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, J-P, Benedettini, M, Bernard, J-P, Blommaert, JADL, Cambresy, L, Cox, P, Di Giorgio, A, Hargrave, P, Hennemann, M, Huang, M, Kirk, J, 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, 102. https://doi.org/10.1051/0004-6361/201014666

TY - JOUR

T1 - From filamentary clouds to prestellar cores to the stellar IMF: 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, M.

AU - Henning, Th.

AU - Royer, P.

AU - Merin, B.

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, M.

AU - Kirk, 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

Y1 - 2010

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

KW - circumstellar matter

KW - ISM: clouds

KW - ISM: structure

KW - submillimeter: ISM

KW - OPHIUCHI MOLECULAR CLOUD

KW - MASS FUNCTION

KW - INTERSTELLAR CLOUDS

KW - SCUBA SURVEY

KW - PROTOSTARS

KW - FRAGMENTATION

KW - EMISSION

KW - SPECTRA

KW - CLUSTER

KW - ORIGIN

U2 - 10.1051/0004-6361/201014666

DO - 10.1051/0004-6361/201014666

M3 - Article

SN - 0004-6361

VL - 518

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - 102

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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