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Resolving the Vela C ridge with P-ArTéMiS and Herschel [Letter]

Hill, T., Andre, Ph., Arzoumanian, D., Motte, F., Minier, V., Men'shchikov, A., Didelon, P., Hennemann, M., Koenyves, V., Nguyen-Luong, Q., Palmeirim, P., Peretto, Nicolas, Schneider, N., Bontemps, S., Louvet, F., Elia, D., Giannini, T., Reveret, V., Le Pennec, J., Rodriguez, L., Boulade, O., Doumayrou, E., Dubreuil, D., Gallais, P., Lortholary, M., Martignac, J., Talvard, M. and De Breuck, C. 2012. Resolving the Vela C ridge with P-ArTéMiS and Herschel [Letter]. Astronomy and Astrophysics 548 , L6. 10.1051/0004-6361/201220504

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We present APEX/P-ArTéMiS 450 μm continuum observations of RCW 36 and the adjacent ridge, a high-mass high-column density filamentary structure at the centre of the Vela C molecular cloud. These observations, at higher resolution than Herschel/SPIRE camera, reveal clear fragmentation of the central star-forming ridge. Combined with PACS far-infrared and SPIRE sub-millimetre observations from the Herschel HOBYS project we build a high resolution column density map of the region mapped with P-ArTéMiS. We extract the radial density profile of the Vela C ridge which with a ~0.1 pc central width is consistent with that measured for low-mass star-forming filaments in the Herschel Gould Belt survey. Direct comparison with Serpens South, of the Gould Belt Aquila complex, reveals many similarities between the two regions. Despite likely different formation mechanisms and histories, the Vela C ridge and Serpens South filament share common characteristics, including their filament central widths.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: ISM: individual objects: Vela C / ISM: individual objects: RCW 36 / submillimeter: stars / dust, extinction / stars: early-type / stars: protostars
Additional Information: Pdf uploaded in accordance with publisher's policy at (accessed 16/04/2014)
Publisher: EDP Sciences
ISSN: 0004-6361
Date of First Compliant Deposit: 30 March 2016
Last Modified: 04 Jun 2017 06:05

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