The structured environments of embedded star-forming cores PACS and SPIRE mapping of the enigmatic outflow source UYSO 1

The intermediate-mass star-forming core UYSO 1 has previously been found to exhibit intriguing features. While deeply embedded and previously only identified by means of its (sub-)millimeter emission, it drives two powerful, dynamically young, molecular outflows. Although the process of star formati...

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Published inAstronomy and astrophysics (Berlin) Vol. 518; no. 1; p. L123
Main Authors LINZ, H, KRAUSE, O, BEUTHER, H, GENNING, Th, KLEIN, R, NIELBOCK, M, STECKLUM, B, STEINACKER, J, STUTZ, A
Format Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences 01.07.2010
Subjects
Astronomy
Astrophysics
Earth, ocean, space
Exact sciences and technology
Physics
Stellar cores
infrared: stars
Molecular flow
infrared: ISM
Dark nebula
HII regions
ISM: structure
Dark clouds
Continuum
stars: formation
Star formation
Stellar mass
Spectral energy
Mapping manifolds
Chemical composition
stars: individual: NAME UYSO 1
Infrared star
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Summary:The intermediate-mass star-forming core UYSO 1 has previously been found to exhibit intriguing features. While deeply embedded and previously only identified by means of its (sub-)millimeter emission, it drives two powerful, dynamically young, molecular outflows. Although the process of star formation has obviously started, the chemical composition is still pristine. We present Herschel PACS and SPIRE continuum data of this presumably very young region. The now complete coverage of the spectral energy peak allows us to precisely constrain the elevated temperature of 26-28 K for the main bulge of gas associated with UYSO1, which is located at the interface between the hot H ii region Sh 2-297 and the cold dark nebula LDN 1657A. Furthermore, the data identify cooler compact far-infrared sources of just a few solar masses, hidden in this neighbouring dark cloud.
ISSN:0004-6361
1432-0746
1432-0756
DOI:10.1051/0004-6361/201014669