{ "id": "0907.3031", "version": "v1", "published": "2009-07-17T09:57:03.000Z", "updated": "2009-07-17T09:57:03.000Z", "title": "Evidence of triggered star formation in G327.3-0.6. Dust-continuum mapping of an infrared dark cloud with P-ArTéMiS", "authors": [ "V. Minier", "Ph. André", "P. Bergman", "F. Motte", "F. Wyrowski", "J. Le Pennec", "L. Rodriguez", "O. Boulade", "E. Doumayrou", "D. Dubreuil", "P. Gallais", "G. Hamon", "P. -O. Lagage", "M. Lortholary", "J. Martignac", "V. Revéret", "H. Roussel", "M. Talvard", "G. Willmann", "H. Olofsson" ], "comment": "4 pages", "journal": "Astronomy and Astrophysics 501 (2009) L1-L4", "doi": "10.1051/0004-6361/200912308", "categories": [ "astro-ph.GA" ], "abstract": "Aims. Expanding HII regions and propagating shocks are common in the environment of young high-mass star-forming complexes. They can compress a pre-existing molecular cloud and trigger the formation of dense cores. We investigate whether these phenomena can explain the formation of high-mass protostars within an infrared dark cloud located at the position of G327.3-0.6 in the Galactic plane, in between two large infrared bubbles and two HII regions. Methods: The region of G327.3-0.6 was imaged at 450 ? m with the CEA P-ArT\\'eMiS bolometer array on the Atacama Pathfinder EXperiment telescope in Chile. APEX/LABOCA and APEX-2A, and Spitzer/IRAC and MIPS archives data were used in this study. Results: Ten massive cores were detected in the P-ArT\\'eMiS image, embedded within the infrared dark cloud seen in absorption at both 8 and 24 ?m. Their luminosities and masses indicate that they form high-mass stars. The kinematical study of the region suggests that the infrared bubbles expand toward the infrared dark cloud. Conclusions: Under the influence of expanding bubbles, star formation occurs in the infrared dark areas at the border of HII regions and infrared bubbles.", "revisions": [ { "version": "v1", "updated": "2009-07-17T09:57:03.000Z" } ], "analyses": { "keywords": [ "infrared dark cloud", "triggered star formation", "dust-continuum mapping", "hii regions", "infrared bubbles" ], "tags": [ "journal article" ], "publication": { "journal": "Astronomy and Astrophysics", "year": 2009, "month": "Jul", "volume": 501, "number": 1 }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 825997, "adsabs": "2009A&A...501L...1M" } } }