Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/24009
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Araya, E. D. | en_US |
dc.contributor.author | OLMI, LUCA | en_US |
dc.contributor.author | Morales Ortiz, J. | en_US |
dc.contributor.author | Brown, J. E. | en_US |
dc.contributor.author | Hofner, P. | en_US |
dc.contributor.author | Kurtz, S. | en_US |
dc.contributor.author | Linz, H. | en_US |
dc.contributor.author | Creech-Eakman, M. J. | en_US |
dc.date.accessioned | 2020-04-14T14:53:54Z | - |
dc.date.available | 2020-04-14T14:53:54Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/24009 | - |
dc.description.abstract | The detection of four formaldehyde (H<SUB>2</SUB>CO) maser regions toward young high-mass stellar objects in the last decade, in addition to the three previously known regions, calls for an investigation of whether H<SUB>2</SUB>CO masers are an exclusive tracer of young high-mass stellar objects. We report the first survey specifically focused on the search for 6 cm H<SUB>2</SUB>CO masers toward non high-mass star-forming regions (non HMSFRs). The observations were conducted with the 305 m Arecibo Telescope toward 25 low-mass star-forming regions, 15 planetary nebulae and post-AGB stars, and 31 late-type stars. We detected no H<SUB>2</SUB>CO emission in our sample of non HMSFRs. To check for the association between high-mass star formation and H<SUB>2</SUB>CO masers, we also conducted a survey toward 22 high-mass star-forming regions from a Hi-GAL (Herschel infrared Galactic Plane Survey) sample known to harbor 6.7 GHz CH<SUB>3</SUB>OH masers. We detected a new 6 cm H<SUB>2</SUB>CO emission line in G32.74-0.07. This work provides further evidence that supports an exclusive association between H<SUB>2</SUB>CO masers and young regions of high-mass star formation. Furthermore, we detected H<SUB>2</SUB>CO absorption toward all Hi-GAL sources, and toward 24 low-mass star-forming regions. We also conducted a simultaneous survey for OH (4660, 4750, 4765 MHz), H110α (4874 MHz), HCOOH (4916 MHz), CH<SUB>3</SUB>OH (5005 MHz), and CH<SUB>2</SUB>NH (5289 MHz) toward 68 of the sources in our sample of non HMSFRs. With the exception of the detection of a 4765 MHz OH line toward a pre-planetary nebula (IRAS 04395+3601), we detected no other spectral line to an upper limit of 15 mJy for most sources. | en_US |
dc.language.iso | eng | en_US |
dc.title | Formaldehyde Masers: Exclusive Tracers of High-mass Star Formation | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1088/0067-0049/221/1/10 | en_US |
dc.identifier.scopus | 2-s2.0-84948772849 | en_US |
dc.identifier.isi | 000366620600010 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.1088/0067-0049/221/1/10 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 221 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 10 | 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 | 2015ApJS..221...10A | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò il file al passo 5-Carica) | en_US |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairetype | Article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0002-1162-7947 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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Araya2015_Editorial.pdf | PDF editoriale | 850.88 kB | Adobe PDF | View/Open |
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