First 450 μm dust continuum mapping of the massive star-forming region NGC 3576 with the P-ArTeMiS bolometer camera

被引：38

作者：

Andre, Ph. ^{[1
]}

Minier, V. ^{[1
]}

Gallais, P. ^{[1
]}

Reveret, V. ^{[1
,2
]}

Le Pennec, J. ^{[1
]}

Rodriguez, L. ^{[1
]}

Boulade, O. ^{[1
]}

Doumayrou, E. ^{[1
]}

Dubreuil, D. ^{[1
]}

Lortholary, M. ^{[1
]}

Martignac, J. ^{[1
]}

Talvard, M. ^{[1
]}

De Breuck, C. ^{[3
]}

Hamon, G. ^{[1
]}

Schneider, N. ^{[1
]}

Bontemps, S. ^{[1
]}

Lagage, P. O. ^{[1
]}

Pantin, E. ^{[1
]}

Roussel, H. ^{[4
]}

Miller, M. ^{[5
]}

Purcell, C. R. ^{[6
]}

Hill, T. ^{[7
]}

Stutzki, J. ^{[5
]}

机构：

[1] Univ Paris Diderot, Lab AIM, CEA DSM CNRS, IRFU Serv Astrophys,CE Saclay, F-91191 Gif Sur Yvette, France

[2] European So Observ, Santiago 19, Chile

[3] European So Observ, D-85748 Garching, Germany

[4] Univ Paris 06, Inst Astrophys Paris, F-75014 Paris, France

[5] Univ Cologne, Inst Phys 1, D-50937 Cologne, Germany

[6] Univ Manchester, Jodrell Bank Observ, Manchester M13 9PL, Lancs, England

[7] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England

来源：

ASTRONOMY & ASTROPHYSICS | 2008年 / 490卷 / 03期

关键词：

stars: formation; stars: circumstellar matter; ISM: clouds; ISM: structure; ISM: individual objects: NGC 3576; submillimeter;

D O I：

10.1051/0004-6361:200810957

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Aims. In an effort to make progress in the current debate on the earliest phases of massive star formation, we took a census of Class 0-like protostellar dense cores in the NGC 3576 region, one of the nearest and most luminous embedded sites of high-mass star formation in the Galaxy. Methods. We used the P-ArTeMiS bolometer camera on the APEX telescope to produce the first 450 mu m dust continuum map of the filamentary dense clump associated with NGC 3576. Results. Combining our 450 mu m observations with existing data at other wavelengths, we identified seven massive protostellar sources along the NGC 3576 filament and placed them in the M-env-L-bol evolutionary diagram for protostars. Conclusions. Comparison with theoretical evolutionary tracks suggests that these seven protostellar sources will evolve into massive stars with masses M-* similar to 15-50 M-circle dot. Four sources are classified as candidate high-mass Class 0 objects, two sources as massive Class I objects, and one source appears to be at an intermediate stage.

引用

页码：L27 / U7

页数：5

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