Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31464
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Liu, Mengyao | en_US |
dc.contributor.author | Tan, Jonathan C. | en_US |
dc.contributor.author | De Buizer, James M. | en_US |
dc.contributor.author | Zhang, Yichen | en_US |
dc.contributor.author | BELTRAN SOROLLA, MARIA TERESA | en_US |
dc.contributor.author | Staff, Jan E. | en_US |
dc.contributor.author | Tanaka, Kei E. I. | en_US |
dc.contributor.author | Whitney, Barbara | en_US |
dc.contributor.author | Rosero, Viviana | en_US |
dc.date.accessioned | 2022-02-24T14:26:05Z | - |
dc.date.available | 2022-02-24T14:26:05Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31464 | - |
dc.description.abstract | We present multiwavelength images observed with SOFIA-FORCAST from ∼10 to 40 μm of seven high luminosity massive protostars, as part of the SOFIA Massive Star Formation Survey. Source morphologies at these wavelengths appear to be influenced by outflow cavities and extinction from dense gas surrounding the protostars. Using these images, we build spectral energy distributions (SEDs) of the protostars, also including archival data from Spitzer, Herschel, and other facilities. Radiative transfer (RT) models of Zhang & Tan, based on Turbulent Core Accretion theory, are then fit to the SEDs to estimate key properties of the protostars. Considering the best five models fit to each source, the protostars have masses m <SUB>*</SUB> ∼ 12-64 M <SUB>⊙</SUB> accreting at rates of {\dot{m}}<SUB>* </SUB>∼ {10}<SUP>-4</SUP>{--}{10}<SUP>-3</SUP> {M}<SUB>⊙ </SUB> {yr}}<SUP>-1</SUP> inside cores of initial masses {M}<SUB>c</SUB>∼ 100{--}500 {M}<SUB>⊙ </SUB> embedded in clumps with mass surface densities {{{Σ }}}<SUB>cl</SUB>}∼ 0.1{--}3 {{g}} {cm}}<SUP>-2</SUP> and span a luminosity range of 10<SUP>4</SUP>-10<SUP>6</SUP> L <SUB>⊙</SUB>. Compared with the first eight protostars in Paper I, the sources analyzed here are more luminous and, thus, likely to be more massive protostars. They are often in a clustered environment or have a companion protostar relatively nearby. From the range of parameter space of the models, we do not see any evidence that Σ<SUB>cl</SUB> needs to be high to form these massive stars. For most sources, the RT models provide reasonable fits to the SEDs, though the cold clump material often influences the long wavelength fitting. However, for sources in very clustered environments, the model SEDs may not be such a good description of the data, indicating potential limitations of the models for these regions. | en_US |
dc.language.iso | eng | en_US |
dc.title | The SOFIA Massive (SOMA) Star Formation Survey. II. High Luminosity Protostars | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/ab07b7 | en_US |
dc.identifier.scopus | 2-s2.0-85064446160 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/ab07b7 | en_US |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85064446160 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 874 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 16 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2019ApJ...874...16L | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0003-3315-5626 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1901.01958.pdf | preprint | 6.16 MB | Adobe PDF | View/Open |
Liu_2019_ApJ_874_16.pdf | [Administrators only] | 5.88 MB | Adobe PDF |
Page view(s)
37
checked on Apr 19, 2024
Download(s)
9
checked on Apr 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.