Sökning: onr:"swepub:oai:research.chalmers.se:a540163b-939b-4ff2-bfc5-28b52cc5712b" >
The SOMA Radio Surv...
The SOMA Radio Survey. I. Comprehensive SEDs of High-mass Protostars from Infrared to Radio and the Emergence of Ionization Feedback
-
- Rosero, Viviana (författare)
- University of Florida,National Radio Astronomy Observatory Socorro,University of Virginia
-
- Tanaka, Kei E.I. (författare)
- Osaka University,National Astronomical Observatory of Japan,University of Florida
-
- Tan, Jonathan, 1973 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,University of Virginia
-
visa fler...
-
- Marvil, J. (författare)
- National Radio Astronomy Observatory Socorro
-
- Liu, Mengyao (författare)
- University of Florida,University of Virginia
-
- Zhang, Yichen (författare)
- RIKEN
-
- De Buizer, James M. (författare)
- NASA Ames Research Center
-
- Beltrán, M. T. (författare)
- Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory
-
visa färre...
-
(creator_code:org_t)
- 2019-02-28
- 2019
- Engelska.
-
Ingår i: Astrophysical Journal. - : American Astronomical Society. - 1538-4357 .- 0004-637X. ; 873:1
- Relaterad länk:
-
http://arxiv.org/pdf...
-
visa fler...
-
https://doi.org/10.3...
-
https://research.cha...
-
visa färre...
Abstract
Ämnesord
Stäng
- We study centimeter continuum emission of eight high- and intermediate-mass protostars that are part of the SOFIA Massive Star Formation Survey, thus building extended spectral energy distributions (SEDs) from the radio to the infrared. We discuss the morphology seen in the centimeter continuum images, which are mostly derived from archival Very Large Array data, and the relation to infrared morphology. We use the SEDs to test new models of high-mass star formation including radiative and disk-wind feedback and associated free-free and dust continuum emission. We show that interferometric data of the centimeter continuum flux densities provide additional, stringent tests of the models by constraining the ionizing luminosity of the source; they also help to break degeneracies encountered when modeling the infrared-only SEDs, especially for the protostellar mass. Our derived parameters are consistent with physical parameters estimated by other methods, such as dynamical protostellar masses. We find a few examples of additional stellar sources in the vicinity of the high-mass protostars, which may be low-mass young stellar objects. However, the stellar multiplicity of the regions, at least as traced by radio continuum emission, appears to be relatively low.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
Nyckelord
- stars: formation
- ISM: jets and outflows
- techniques: interferometric
Publikations- och innehållstyp
- for (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas