SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:research.chalmers.se:8626e209-2188-469c-a490-75cea7737e0d"
 

Search: onr:"swepub:oai:research.chalmers.se:8626e209-2188-469c-a490-75cea7737e0d" > The SOFIA Massive (...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

The SOFIA Massive (SOMA) Star Formation Survey. III. From Intermediate- to High-mass Protostars

Liu, Mengyao (author)
University of Virginia
Tan, Jonathan, 1973 (author)
Chalmers tekniska högskola,Chalmers University of Technology
De Buizer, James M. (author)
NASA Ames Research Center
show more...
Zhang, Yichen (author)
RIKEN
Moser, Emily (author)
Cornell University
Beltran, Maria T. (author)
Istituto nazionale di astrofisica (INAF)
Staff, Jan E. (author)
University of The Virgin Islands
Tanaka, (author)
National Astronomical Observatory of Japan
Whitney, Barbara (author)
University of Wisconsin Madison
Rosero, Viviana (author)
National Radio Astronomy Observatory Socorro
Yang, Yao-Lun (author)
University of Virginia
Fedriani, Rubén, 1991 (author)
Chalmers tekniska högskola,Chalmers University of Technology
show less...
 (creator_code:org_t)
2020-11-23
2020
English.
In: Astrophysical Journal. - : American Astronomical Society. - 1538-4357 .- 0004-637X. ; 904:1
Related links:
https://iopscience.i...
show more...
https://doi.org/10.3...
https://research.cha...
show less...
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • We present similar to 10-40 mm SOFIA-FORCAST images of 14 intermediate-mass protostar candidates as part of the SOFIA Massive (SOMA) Star Formation Survey. We build spectral energy distributions, also using archival Spitzer, Herschel, and IRAS data. We then fit the spectral energy distributions with radiative transfer models of Zhang & Tan, based on turbulent core accretion theory, to estimate key protostellar properties. With the addition of these intermediate-mass sources, based on average properties derived from SED fitting, SOMA protostars span luminosities from similar to 10(2) to 10(6) L-circle dot, current protostellar masses from similar to 0.5 to 35 M-circle dot, and ambient clump mass surface densities, Scl, from 0.1 to g cm(-2). A wide range of evolutionary states of the individual protostars and of the protocluster environments is also probed. We have also considered about 50 protostars identified in infrared dark clouds that are expected to be at the earliest stages of their evolution. With this global sample, most of the evolutionary stages of high- and intermediate-mass protostars are probed. The best-fitting models show no evidence that a threshold value of the protocluster clump mass surface density is required to form protostars up to similar to 25 M.. However, to form more massive protostars, there is tentative evidence that Sigma(cl) needs to be greater than or similar to 1 g cm(-2). We discuss how this is consistent with expectations from core accretion models that include internal feedback from the forming massive star.

Subject headings

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (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)

Keyword

Star formation
Jets
Infrared sources
Interstellar medium
Massive stars

Publication and Content Type

art (subject category)
ref (subject category)

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view