The JCMT Gould Belt Survey: radiative heating by OB stars

被引：3

作者：

Rumble, D. ^{[1
]}

Hatchell, J. ^{[1
]}

Kirk, H. ^{[2
,3
]}

Pattle, K. ^{[4
]}

机构：

[1] Univ Exeter, Phys & Astron, Stocker Rd, Exeter EX4 4QL, Devon, England

[2] NRC Herzberg Astron & Astrophys Res Ctr, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada

[3] Univ Victoria, Dept Phys & Astron, 3800 Finnerty Rd, Victoria, BC V8P 5C2, Canada

[4] Natl Univ Ireland Galway, Ctr Astron, Dept Phys, Univ Rd, Galway H91 TK66, Ireland

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2021年 / 505卷 / 02期

基金：

加拿大创新基金会; 英国科学技术设施理事会;

关键词：

radiation mechanisms: thermal; stars: formation; submillimetre: ISM; dust extinction; SURVEY SCUBA-2 OBSERVATIONS; MOLECULAR CLOUD; DENSE CORES; DUST TEMPERATURES; VIRIAL ANALYSIS; DISTANCES; EMISSION; HERSCHEL; FEEDBACK; PERSEUS;

D O I：

10.1093/mnras/stab1354

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Radiative feedback can influence subsequent star formation. We quantify the heating from OB stars in the local star-forming regions in the James Clerk Maxwell Telescope (JCMT) Gould Belt Survey. Dust temperatures are calculated from 450/850 mu m flux ratios from SCUBA-2 observations at the JCMT assuming a fixed dust opacity spectral index beta = 1.8. Mean dust temperatures are calculated for each submillimetre clump along with projected distances from the main OB star in the region. Temperature versus distance is fitted with a simple model of dust heating by the OB star radiation plus the interstellar radiation field and dust cooling through optically thin radiation. Classifying the heating sources by spectral type, O-type stars produce the greatest clump average temperature rises and largest heating extent, with temperatures of over 40 K and significant heating out to at least 2.4 pc. Early-type B stars (B4 and above) produce temperatures of over 20 K and significant heating over 0.4 pc. Late-type B stars show a marginal heating effect within 0.2 pc. For a given projected distance, there is a significant scatter in clump temperatures that is due to local heating by other luminous stars in the region, projection effects, or shadowing effects. Even in these local, 'low-mass' star-forming regions, radiative feedback is having an effect on parsec scales, with 24 per cent of the clumps heated to at least 3 K above the 15 K base temperature expected from heating by only the interstellar radiation field, and a mean dust temperature for heated clumps of 24 K.

引用

页码：2103 / 2110

页数：8

共 76 条

[1]

Abt H. A., 1977, PASP, V89, P797, DOI [10.1086/130230, DOI 10.1086/130230]

[2] Common-Resolution Convolution Kernels for Space- and Ground-Based Telescopes [J].

Aniano, G. ;

Draine, B. T. ;

Gordon, K. D. ;

Sandstrom, K. .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2011, 123 (908) :1218-1236

[3] The importance of radiative feedback for the stellar initial mass function [J].

Bate, Matthew R. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 392 (04) :1363-1380

[4] A SURVEY FOR CIRCUMSTELLAR DISKS AROUND YOUNG STELLAR OBJECTS [J].

BECKWITH, SVW ;

SARGENT, AI ;

CHINI, RS ;

GUSTEN, R .

ASTRONOMICAL JOURNAL, 1990, 99 (03) :924-945

[5] Dust temperature tracing the ISRF intensity in the Galaxy [J].

Bernard, J. -Ph. ;

Paradis, D. ;

Marshall, D. J. ;

Montier, L. ;

Lagache, G. ;

Paladini, R. ;

Veneziani, M. ;

Brunt, C. M. ;

Mottram, J. C. ;

Martin, P. ;

Ristorcelli, I. ;

Noriega-Crespo, A. ;

Compiegne, M. ;

Flagey, N. ;

Anderson, L. D. ;

Popescu, C. C. ;

Tuffs, R. ;

Reach, W. ;

White, G. ;

Benedetti, M. ;

Calzoletti, L. ;

DiGiorgio, A. M. ;

Faustini, F. ;

Juvela, M. ;

Joblin, C. ;

Joncas, G. ;

Mivilles-Deschenes, M. -A. ;

Olmi, L. ;

Traficante, A. ;

Piacentini, F. ;

Zavagno, A. ;

Molinari, S. .

ASTRONOMY & ASTROPHYSICS, 2010, 518

[6] FellWalker-A clump identification algorithm [J].

Berry, D. S. .

ASTRONOMY AND COMPUTING, 2015, 10 :22-31

[7] The Herschel first look at protostars in the Aquila rift [J].

Bontemps, S. ;

Andre, Ph. ;

Koenyves, V. ;

Men'shchikov, A. ;

Schneider, N. ;

Maury, A. ;

Peretto, N. ;

Arzoumanian, D. ;

Attard, M. ;

Motte, F. ;

Minier, V. ;

Didelon, P. ;

Saraceno, P. ;

Abergel, A. ;

Baluteau, J. -P. ;

Bernard, J. -Ph. ;

Cambresy, L. ;

Cox, P. ;

Di Francesco, J. ;

Di Giorgo, A. M. ;

Griffin, M. ;

Hargrave, P. ;

Huang, M. ;

Kirk, J. ;

Li, J. ;

Martin, P. ;

Merin, B. ;

Molinari, S. ;

Olofsson, G. ;

Pezzuto, S. ;

Prusti, T. ;

Roussel, H. ;

Russeil, D. ;

Sauvage, M. ;

Sibthorpe, B. ;

Spinoglio, L. ;

Testi, L. ;

Vavrek, R. ;

Ward-Thompson, D. ;

White, G. ;

Wilson, C. ;

Woodcraft, A. ;

Zavagno, A. .

ASTRONOMY & ASTROPHYSICS, 2010, 518

[8] The JCMT Gould Belt Survey: SCUBA-2 observations of circumstellar discs in L 1495 [J].

Buckle, J. V. ;

Drabek-Maunder, E. ;

Greaves, J. ;

Richer, J. S. ;

Matthews, B. C. ;

Johnstone, D. ;

Kirk, H. ;

Beaulieu, S. F. ;

Berry, D. S. ;

Broekhoven-Fiene, H. ;

Currie, M. J. ;

Fich, M. ;

Hatchell, J. ;

Jenness, T. ;

Mottram, J. C. ;

Nutter, D. ;

Pattle, K. ;

Pineda, J. E. ;

Salji, C. ;

Tisi, S. ;

Di Francesco, J. ;

Hogerheijde, M. R. ;

Ward-Thompson, D. ;

Bastien, P. ;

Butner, H. ;

Chen, M. ;

Chrysostomou, A. ;

Coude, S. ;

Davis, C. J. ;

Duarte-Cabral, A. ;

Friberg, P. ;

Friesen, R. ;

Fuller, G. A. ;

Graves, S. ;

Gregson, J. ;

Holland, W. ;

Joncas, G. ;

Kirk, J. M. ;

Knee, L. B. G. ;

Mairs, S. ;

Marsh, K. ;

Moriarty-Schieven, G. ;

Rawlings, J. ;

Rosolowsky, E. ;

Rumble, D. ;

Sadavoy, S. ;

Thomas, H. ;

Tothill, N. ;

Viti, S. ;

White, G. J. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 449 (03) :2472-2488

[9]

Busfield G., 1997, MNRAS, V286, P538

[10] THE JCMT GOULD BELT SURVEY: EVIDENCE FOR DUST GRAIN EVOLUTION IN PERSEUS STAR-FORMING CLUMPS [J].

Chen, Michael Chun-Yuan ;

Di Francesco, J. ;

Johnstone, D. ;

Sadavoy, S. ;

Hatchell, J. ;

Mottram, J. C. ;

Kirk, H. ;

Buckle, J. ;

Berry, D. S. ;

Broekhoven-Fiene, H. ;

Currie, M. J. ;

Fich, M. ;

Jenness, T. ;

Nutter, D. ;

Pattle, K. ;

Pineda, J. E. ;

Quinn, C. ;

Salji, C. ;

Tisi, S. ;

Hogerheijde, M. R. ;

Ward-Thompson, D. ;

Bastien, P. ;

Bresnahan, D. ;

Butner, H. ;

Chrysostomou, A. ;

Coude, S. ;

Davis, C. J. ;

Drabek-Maunder, E. ;

Duarte-Cabral, A. ;

Fiege, J. ;

Friberg, P. ;

Friesen, R. ;

Fuller, G. A. ;

Graves, S. ;

Greaves, J. ;

Gregson, J. ;

Holland, W. ;

Joncas, G. ;

Kirk, J. M. ;

Knee, L. B. G. ;

Mairs, S. ;

Marsh, K. ;

Matthews, B. C. ;

Moriarty-Schieven, G. ;

Mowat, C. ;

Pezzuto, S. ;

Rawlings, J. ;

Richer, J. ;

Robertson, D. ;

Rosolowsky, E. .

ASTROPHYSICAL JOURNAL, 2016, 826 (01)

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