Sökning: onr:"swepub:oai:research.chalmers.se:dc100ee8-59ad-4bcb-8cd1-27b188db16a0" >
The SOFIA Massive (...
-
Fedriani, Rubén,1991Chalmers tekniska högskola,Chalmers University of Technology
(författare)
The SOFIA Massive (SOMA) Star Formation Survey. IV. Isolated Protostars
- Artikel/kapitelEngelska2023
Förlag, utgivningsår, omfång ...
-
2022-12-28
-
American Astronomical Society,2023
-
electronicrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:research.chalmers.se:dc100ee8-59ad-4bcb-8cd1-27b188db16a0
-
https://doi.org/10.3847/1538-4357/aca4cfDOI
-
https://research.chalmers.se/publication/534331URI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:art swepub-publicationtype
-
Ämneskategori:ref swepub-contenttype
Anmärkningar
-
We present similar to 10-40 mu m SOFIA-FORCAST images of 11 isolated protostars as part of the SOFIA Massive (SOMA) Star Formation Survey, with this morphological classification based on 37 mu m imaging. We develop an automated method to define source aperture size using the gradient of its background-subtracted enclosed flux and apply this to build spectral energy distributions (SEDs). We fit the SEDs with radiative transfer models, developed within the framework of turbulent core accretion (TCA) theory, to estimate key protostellar properties. Here, we release the sedcreator python package that carries out these methods. The SEDs are generally well fitted by the TCA models, from which we infer initial core masses M ( c ) ranging from 20-430 M (circle dot), clump mass surface densities sigma(cl) similar to 0.3-1.7 g cm(-2), and current protostellar masses m (*) similar to 3-50 M (circle dot). From a uniform analysis of the 40 sources in the full SOMA survey to date, we find that massive protostars form across a wide range of clump mass surface density environments, placing constraints on theories that predict a minimum threshold sigma(cl) for massive star formation. However, the upper end of the m (*)-sigma(cl) distribution follows trends predicted by models of internal protostellar feedback that find greater star formation efficiency in higher sigma(cl) conditions. We also investigate protostellar far-IR variability by comparison with IRAS data, finding no significant variation over an similar to 40 yr baseline.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Tan, Jonathan,1973Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tanj
(författare)
-
Telkamp, ZoieUniversity of Virginia
(författare)
-
Zhang, YichenRIKEN,University of Virginia
(författare)
-
Yang, Yao-LunUniversity of Virginia,RIKEN
(författare)
-
Liu, MengyaoUniversity of Virginia
(författare)
-
De Buizer, James M.NASA Ames Research Center
(författare)
-
Law, Chi Yan,1990Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ychi
(författare)
-
Beltran, Maria T.Istituto nazionale di astrofisica (INAF)
(författare)
-
Rosero, VivianaNational Radio Astronomy Observatory Socorro
(författare)
-
Tanaka,University of Colorado at Boulder,National Institutes of Natural Sciences (NINS)
(författare)
-
Cosentino, Giuliana,1990Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)giuliana
(författare)
-
Gorai, Prasanta,1991Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)prasanta
(författare)
-
Farias Osses, Juan Pablo,1987Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)osses
(författare)
-
Staff, Jan E.University of The Virgin Islands
(författare)
-
Whitney, BarbaraSpace Science Institute
(författare)
-
Chalmers tekniska högskolaUniversity of Virginia
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Astrophysical Journal: American Astronomical Society942:11538-43570004-637X
Internetlänk
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Fedriani, Rubén, ...
-
Tan, Jonathan, 1 ...
-
Telkamp, Zoie
-
Zhang, Yichen
-
Yang, Yao-Lun
-
Liu, Mengyao
-
visa fler...
-
De Buizer, James ...
-
Law, Chi Yan, 19 ...
-
Beltran, Maria T ...
-
Rosero, Viviana
-
Tanaka,
-
Cosentino, Giuli ...
-
Gorai, Prasanta, ...
-
Farias Osses, Ju ...
-
Staff, Jan E.
-
Whitney, Barbara
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Fysik
-
och Astronomi astrof ...
- Artiklar i publikationen
-
Astrophysical Jo ...
- Av lärosätet
-
Chalmers tekniska högskola