Matches in SemOpenAlex for { <https://semopenalex.org/work/W2029258129> ?p ?o ?g. }
- W2029258129 endingPage "1671" @default.
- W2029258129 startingPage "1659" @default.
- W2029258129 abstract "A recent high angular resolution extinction map toward the most opaque molecular globule, Globule 2, in the Coalsack Nebula revealed that it contains a strong central ring of dust column density. This ring represents a region of high density and pressure that is likely a transient and possibly turbulent structure. Dynamical models suggest that the ring has formed as a result of a sudden increase in external pressure which is driving a compression wave into the Globule. Here we combine the extinction measurements with a detailed study of the C18O (1-0) molecular line profiles toward Globule 2 in order to investigate the overall kinematics and, in doing so, test this dynamical model. We find that the ring corresponds to an enhancement in the C18O non-thermal velocity dispersion and non-thermal pressure. We observe a velocity gradient across the Globule that appears to trace two distinct systematic subsonic velocity flows that happen to converge within the ring. We suggest, therefore, that the ring has formed as two subsonic flows of turbulent gas merge within the Globule. The fact that the outer layers of the Globule appear stable against collapse yet there is no centrally condensed core, suggests that the Globule may be evolving from the outside in and has yet to stabilize, confirming its youth." @default.
- W2029258129 created "2016-06-24" @default.
- W2029258129 creator A5014918314 @default.
- W2029258129 creator A5058508618 @default.
- W2029258129 creator A5066957724 @default.
- W2029258129 creator A5068197423 @default.
- W2029258129 creator A5086981569 @default.
- W2029258129 date "2008-12-22" @default.
- W2029258129 modified "2023-09-27" @default.
- W2029258129 title "THE DENSE RING IN THE COALSACK: THE MERGING OF TWO SUBSONIC FLOWS?" @default.
- W2029258129 cites W1501642010 @default.
- W2029258129 cites W1980530720 @default.
- W2029258129 cites W1985471486 @default.
- W2029258129 cites W1990670394 @default.
- W2029258129 cites W2005151448 @default.
- W2029258129 cites W2007018580 @default.
- W2029258129 cites W2007241742 @default.
- W2029258129 cites W2015732298 @default.
- W2029258129 cites W2030392387 @default.
- W2029258129 cites W2046009229 @default.
- W2029258129 cites W2047218750 @default.
- W2029258129 cites W2048716675 @default.
- W2029258129 cites W2049707893 @default.
- W2029258129 cites W2065113309 @default.
- W2029258129 cites W2065191676 @default.
- W2029258129 cites W2075562621 @default.
- W2029258129 cites W2082544365 @default.
- W2029258129 cites W2083724390 @default.
- W2029258129 cites W2085323551 @default.
- W2029258129 cites W2085519936 @default.
- W2029258129 cites W2087887591 @default.
- W2029258129 cites W2088763329 @default.
- W2029258129 cites W2089176910 @default.
- W2029258129 cites W2136989289 @default.
- W2029258129 cites W2162328595 @default.
- W2029258129 cites W2990293557 @default.
- W2029258129 cites W3099167934 @default.
- W2029258129 cites W3099664369 @default.
- W2029258129 cites W3100450276 @default.
- W2029258129 cites W3101242607 @default.
- W2029258129 cites W3101913759 @default.
- W2029258129 cites W3101980483 @default.
- W2029258129 cites W3104478142 @default.
- W2029258129 cites W3125125259 @default.
- W2029258129 cites W4243590047 @default.
- W2029258129 doi "https://doi.org/10.1088/0004-637x/690/2/1659" @default.
- W2029258129 hasPublicationYear "2008" @default.
- W2029258129 type Work @default.
- W2029258129 sameAs 2029258129 @default.
- W2029258129 citedByCount "6" @default.
- W2029258129 countsByYear W20292581292022 @default.
- W2029258129 crossrefType "journal-article" @default.
- W2029258129 hasAuthorship W2029258129A5014918314 @default.
- W2029258129 hasAuthorship W2029258129A5058508618 @default.
- W2029258129 hasAuthorship W2029258129A5066957724 @default.
- W2029258129 hasAuthorship W2029258129A5068197423 @default.
- W2029258129 hasAuthorship W2029258129A5086981569 @default.
- W2029258129 hasBestOaLocation W20292581292 @default.
- W2029258129 hasConcept C101991246 @default.
- W2029258129 hasConcept C120665830 @default.
- W2029258129 hasConcept C121332964 @default.
- W2029258129 hasConcept C136590016 @default.
- W2029258129 hasConcept C153294291 @default.
- W2029258129 hasConcept C178790620 @default.
- W2029258129 hasConcept C185592680 @default.
- W2029258129 hasConcept C196558001 @default.
- W2029258129 hasConcept C197129107 @default.
- W2029258129 hasConcept C204530211 @default.
- W2029258129 hasConcept C23123220 @default.
- W2029258129 hasConcept C2780378348 @default.
- W2029258129 hasConcept C41008148 @default.
- W2029258129 hasConcept C44870925 @default.
- W2029258129 hasConcept C57879066 @default.
- W2029258129 hasConcept C60056205 @default.
- W2029258129 hasConcept C74650414 @default.
- W2029258129 hasConcept C98156149 @default.
- W2029258129 hasConceptScore W2029258129C101991246 @default.
- W2029258129 hasConceptScore W2029258129C120665830 @default.
- W2029258129 hasConceptScore W2029258129C121332964 @default.
- W2029258129 hasConceptScore W2029258129C136590016 @default.
- W2029258129 hasConceptScore W2029258129C153294291 @default.
- W2029258129 hasConceptScore W2029258129C178790620 @default.
- W2029258129 hasConceptScore W2029258129C185592680 @default.
- W2029258129 hasConceptScore W2029258129C196558001 @default.
- W2029258129 hasConceptScore W2029258129C197129107 @default.
- W2029258129 hasConceptScore W2029258129C204530211 @default.
- W2029258129 hasConceptScore W2029258129C23123220 @default.
- W2029258129 hasConceptScore W2029258129C2780378348 @default.
- W2029258129 hasConceptScore W2029258129C41008148 @default.
- W2029258129 hasConceptScore W2029258129C44870925 @default.
- W2029258129 hasConceptScore W2029258129C57879066 @default.
- W2029258129 hasConceptScore W2029258129C60056205 @default.
- W2029258129 hasConceptScore W2029258129C74650414 @default.
- W2029258129 hasConceptScore W2029258129C98156149 @default.
- W2029258129 hasIssue "2" @default.
- W2029258129 hasLocation W20292581291 @default.
- W2029258129 hasLocation W20292581292 @default.
- W2029258129 hasOpenAccess W2029258129 @default.