Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26661
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Silva, Andrea | en_US |
dc.contributor.author | Zhang, Qizhou | en_US |
dc.contributor.author | Sanhueza, Patricio | en_US |
dc.contributor.author | Lu, Xing | en_US |
dc.contributor.author | BELTRAN SOROLLA, MARIA TERESA | en_US |
dc.contributor.author | Fallscheer, Cassandra | en_US |
dc.contributor.author | Beuther, Henrik | en_US |
dc.contributor.author | Sridharan, T. K. | en_US |
dc.contributor.author | CESARONI, Riccardo | en_US |
dc.date.accessioned | 2020-07-28T09:53:10Z | - |
dc.date.available | 2020-07-28T09:53:10Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26661 | - |
dc.description.abstract | We present Submillimeter Array (SMA) observations toward the high-mass star-forming region IRAS 18566+0408. Observations at the 1.3 mm continuum and in several molecular line transitions were performed in the compact (2.″4 angular resolution) and very-extended (∼0.″4 angular resolution) configurations. The continuum emission from the compact configuration shows a dust core of 150 M <SUB>☉</SUB>, while the very-extended configuration reveals a dense (2.6 × 10<SUP>7</SUP> cm<SUP>-3</SUP>) and compact (∼4000 au) condensation of 8 M <SUB>☉</SUB>. We detect 31 molecular transitions from 14 species including CO isotopologues, SO, CH<SUB>3</SUB>OH, OCS, and CH<SUB>3</SUB>CN. Using the different k-ladders of the CH<SUB>3</SUB>CN line, we derive a rotational temperature at the location of the continuum peak of 240 K. The {}<SUP>12</SUP>{CO}(2-1), {}<SUP>13</SUP>{CO}(2-1), and {SO}({6}<SUB>5</SUB>{--}{5}<SUB>4</SUB>) lines reveal a molecular outflow at PA ∼ 135° centered at the continuum peak. The extended {}<SUP>12</SUP>{CO}(2-1) emission has been recovered with the IRAM 30 m telescope observations. Using the combined data set, we derive an outflow mass of 16.8 M <SUB>☉</SUB>. The chemically rich spectrum and the high rotational temperature confirm that IRAS 18566+0408 is harboring a hot molecular core. We find no clear velocity gradient that could suggest the presence of a rotational disk-like structure, even at the high-resolution observations obtained with the very-extended configuration. | en_US |
dc.language.iso | eng | en_US |
dc.title | SMA Observations of the Hot Molecular Core IRAS 18566+0408 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/aa88c6 | en_US |
dc.identifier.scopus | 2-s2.0-85031106254 | en_US |
dc.identifier.isi | 000411698300004 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/aa88c6 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 847 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 87 | en_US |
dc.relation.lastpage | 97 | en_US |
dc.relation.numberofpages | 10 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | 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 | 2017ApJ...847...87S | en_US |
dc.relation.ercsector | Scienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_4 Formation of stars and planets | 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.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0003-3315-5626 | - |
crisitem.author.orcid | 0000-0002-2430-5103 | - |
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 | |
---|---|---|---|---|
Silva_2017_ApJ_847_87.pdf | PDF editoriale | 2.5 MB | Adobe PDF | View/Open |
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