Matches in SemOpenAlex for { <https://semopenalex.org/work/W2227369538> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W2227369538 endingPage "852" @default.
- W2227369538 startingPage "847" @default.
- W2227369538 abstract "The ionized gas in the Sagittarius B2 Main star-forming region has been imaged with ~65 mas (600 AU) resolution using the Very Large Array (VLA) at 7 mm in the A configuration. These observations have ~4-5 times the resolution of the previous highest resolution images of this source. These VLA observations show that the central four ultracompact H II (UC H II) regions in Sgr B2 Main (F1, F2, F3, and F4) break up into ~20 separate UC H II regions. The individual sources have small resolved sizes (~10-3 pc), high derived emission measures (EM ~ 109 pc cm-6), and high rms electron densities (ne ~ 106 cm-3). We compare the observed radius and derived emission measure of each of these regions with those expected for a UC H II region in pressure equilibrium with its environment, using previously published temperatures and densities for the Sgr B2 molecular core (nH2=2×107 cm-3). We find that the observed emission measures are in fact higher than those predicted in a simple pressure-confinement model, suggesting that the molecular densities on scales that confine the UC H II regions may be higher than 2 × 107 cm-3." @default.
- W2227369538 created "2016-06-24" @default.
- W2227369538 creator A5040941377 @default.
- W2227369538 creator A5067433095 @default.
- W2227369538 creator A5087843577 @default.
- W2227369538 date "1998-06-20" @default.
- W2227369538 modified "2023-10-03" @default.
- W2227369538 title "Ionized Gas in Sagittarius B2 Main on Scales of 0.065 Arcsecond (600 AU)" @default.
- W2227369538 cites W1991551621 @default.
- W2227369538 cites W1999678454 @default.
- W2227369538 cites W2007876941 @default.
- W2227369538 cites W2009863880 @default.
- W2227369538 cites W2018003132 @default.
- W2227369538 cites W2019672183 @default.
- W2227369538 cites W2022390152 @default.
- W2227369538 cites W2029553946 @default.
- W2227369538 cites W2053326823 @default.
- W2227369538 cites W2067694347 @default.
- W2227369538 cites W2068698267 @default.
- W2227369538 cites W3110709559 @default.
- W2227369538 doi "https://doi.org/10.1086/305782" @default.
- W2227369538 hasPublicationYear "1998" @default.
- W2227369538 type Work @default.
- W2227369538 sameAs 2227369538 @default.
- W2227369538 citedByCount "69" @default.
- W2227369538 countsByYear W22273695382013 @default.
- W2227369538 countsByYear W22273695382014 @default.
- W2227369538 countsByYear W22273695382015 @default.
- W2227369538 countsByYear W22273695382016 @default.
- W2227369538 countsByYear W22273695382017 @default.
- W2227369538 countsByYear W22273695382018 @default.
- W2227369538 countsByYear W22273695382019 @default.
- W2227369538 countsByYear W22273695382020 @default.
- W2227369538 countsByYear W22273695382021 @default.
- W2227369538 countsByYear W22273695382022 @default.
- W2227369538 countsByYear W22273695382023 @default.
- W2227369538 crossrefType "journal-article" @default.
- W2227369538 hasAuthorship W2227369538A5040941377 @default.
- W2227369538 hasAuthorship W2227369538A5067433095 @default.
- W2227369538 hasAuthorship W2227369538A5087843577 @default.
- W2227369538 hasBestOaLocation W22273695381 @default.
- W2227369538 hasConcept C121332964 @default.
- W2227369538 hasConcept C125485243 @default.
- W2227369538 hasConcept C127313418 @default.
- W2227369538 hasConcept C138268822 @default.
- W2227369538 hasConcept C145148216 @default.
- W2227369538 hasConcept C154945302 @default.
- W2227369538 hasConcept C178635117 @default.
- W2227369538 hasConcept C198291218 @default.
- W2227369538 hasConcept C3020199158 @default.
- W2227369538 hasConcept C38652104 @default.
- W2227369538 hasConcept C41008148 @default.
- W2227369538 hasConcept C44870925 @default.
- W2227369538 hasConcept C62520636 @default.
- W2227369538 hasConcept C62649853 @default.
- W2227369538 hasConcept C82706917 @default.
- W2227369538 hasConceptScore W2227369538C121332964 @default.
- W2227369538 hasConceptScore W2227369538C125485243 @default.
- W2227369538 hasConceptScore W2227369538C127313418 @default.
- W2227369538 hasConceptScore W2227369538C138268822 @default.
- W2227369538 hasConceptScore W2227369538C145148216 @default.
- W2227369538 hasConceptScore W2227369538C154945302 @default.
- W2227369538 hasConceptScore W2227369538C178635117 @default.
- W2227369538 hasConceptScore W2227369538C198291218 @default.
- W2227369538 hasConceptScore W2227369538C3020199158 @default.
- W2227369538 hasConceptScore W2227369538C38652104 @default.
- W2227369538 hasConceptScore W2227369538C41008148 @default.
- W2227369538 hasConceptScore W2227369538C44870925 @default.
- W2227369538 hasConceptScore W2227369538C62520636 @default.
- W2227369538 hasConceptScore W2227369538C62649853 @default.
- W2227369538 hasConceptScore W2227369538C82706917 @default.
- W2227369538 hasIssue "2" @default.
- W2227369538 hasLocation W22273695381 @default.
- W2227369538 hasOpenAccess W2227369538 @default.
- W2227369538 hasPrimaryLocation W22273695381 @default.
- W2227369538 hasRelatedWork W1580626023 @default.
- W2227369538 hasRelatedWork W1972139043 @default.
- W2227369538 hasRelatedWork W2008086601 @default.
- W2227369538 hasRelatedWork W2010133960 @default.
- W2227369538 hasRelatedWork W202391565 @default.
- W2227369538 hasRelatedWork W3098791626 @default.
- W2227369538 hasRelatedWork W3103114574 @default.
- W2227369538 hasRelatedWork W3145073591 @default.
- W2227369538 hasRelatedWork W3207615326 @default.
- W2227369538 hasRelatedWork W4236529715 @default.
- W2227369538 hasVolume "500" @default.
- W2227369538 isParatext "false" @default.
- W2227369538 isRetracted "false" @default.
- W2227369538 magId "2227369538" @default.
- W2227369538 workType "article" @default.