FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1567976587> ?p ?o ?g. }

• W1567976587 endingPage "498" @default.
• W1567976587 startingPage "481" @default.
• W1567976587 abstract "Context. Since 1973, it has been known that some H I high velocity clouds (HVCs) have a core-envelope structure. Recent observations of compact HVCs confirm this, but more general investigations have been missing so far. Aims. We study the properties of all major HVC complexes from a sample compiled in 1991 by Wakker & van Woerden (WvW). Methods. We use the Leiden/Argentine/Bonn all sky 21-cm line survey and decompose the profiles into Gaussian components. Results. We find the WvW line widths and column densities to be underestimated by ∼40%. In 1991, these line widths could not be measured directly, but had to be estimated with the help of higher resolution data. We find a well-defined multi-component structure for most of the HVC complexes. The cold HVC phase has lines with typical velocity dispersions of σ = 3 kin s -1 and exists only within more extended broad line regions, typically with σ = 12 km s -1 . The motions of the cores relative to the envelopes are characterized by Mach numbers M = (v core - v envelope )/σ envelope ∼ 1.5. The center velocities of the cores within a HVC complex have typical dispersions of 20 km s -1 . The well-defined two-component structure of some prominent HVC complexes in the outskirts of the Milky Way is remakable: Complex H lies approximately in the Galactic plane, and the most plausible distance estimate of R ∼ 33 kpc places it at the edge of the disk. The Magellanic Stream and the Leading Arm (complex EP) reach higher latitudes and are probably more distant, R ∼ 50 kpc. There might be some indications for an interaction between HVCs and disk gas at intermediate velocities. This is possible for complex H, M, C, WB, WD, WE, WC, R, G, GCP, and OA, but not for complex A, MS, ACVHV, EN, WA, and P. Conclusions. The line widths, determined by us, imply that estimates of HVC masses, as far as those derived from the WvW database are concerned, need to be scaled up by a factor 1.4. Correspondingly, guesses for the external pressure of a confining coronal gas need to be revised upward by a factor of 2. The HVC multi-phase structure implies in general that currently the halo pressure is significantly underestimated. In consequence, the HVC multi-phase structure may indicate that most of the complexes are circumgalactic. HVCs have turbulent energy densities which are an order of magnitude larger than that of comparable clumps in the Galactic disk." @default.
• W1567976587 created "2016-06-24" @default.
• W1567976587 creator A5034275813 @default.
• W1567976587 creator A5086564045 @default.
• W1567976587 date "2006-08-01" @default.
• W1567976587 modified "2023-09-24" @default.
• W1567976587 title "Global properties of the HI high velocity sky. A statistical investigation based on the LAB survey" @default.
• W1567976587 cites W1539512060 @default.
• W1567976587 cites W1623931604 @default.
• W1567976587 cites W1965481148 @default.
• W1567976587 cites W1966774933 @default.
• W1567976587 cites W1969473885 @default.
• W1567976587 cites W1977531737 @default.
• W1567976587 cites W1989337432 @default.
• W1567976587 cites W1996211208 @default.
• W1567976587 cites W2002751119 @default.
• W1567976587 cites W2011859648 @default.
• W1567976587 cites W2021101398 @default.
• W1567976587 cites W2021633254 @default.
• W1567976587 cites W2021770893 @default.
• W1567976587 cites W2022918117 @default.
• W1567976587 cites W2042443928 @default.
• W1567976587 cites W2048576996 @default.
• W1567976587 cites W2065967883 @default.
• W1567976587 cites W2068594141 @default.
• W1567976587 cites W2069431913 @default.
• W1567976587 cites W2078091601 @default.
• W1567976587 cites W2078576238 @default.
• W1567976587 cites W2082011172 @default.
• W1567976587 cites W2084644674 @default.
• W1567976587 cites W2085047274 @default.
• W1567976587 cites W2096094217 @default.
• W1567976587 cites W2097548891 @default.
• W1567976587 cites W2102770456 @default.
• W1567976587 cites W2110279512 @default.
• W1567976587 cites W2110434645 @default.
• W1567976587 cites W2111113369 @default.
• W1567976587 cites W2114527501 @default.
• W1567976587 cites W2136291263 @default.
• W1567976587 cites W2140888726 @default.
• W1567976587 cites W2145065824 @default.
• W1567976587 cites W2149746898 @default.
• W1567976587 cites W2416477423 @default.
• W1567976587 cites W3034349852 @default.
• W1567976587 cites W3099437765 @default.
• W1567976587 cites W3100394514 @default.
• W1567976587 cites W3101045943 @default.
• W1567976587 cites W3122599264 @default.
• W1567976587 cites W3013595871 @default.
• W1567976587 hasPublicationYear "2006" @default.
• W1567976587 type Work @default.
• W1567976587 sameAs 1567976587 @default.
• W1567976587 citedByCount "9" @default.
• W1567976587 countsByYear W15679765872013 @default.
• W1567976587 countsByYear W15679765872015 @default.
• W1567976587 crossrefType "journal-article" @default.
• W1567976587 hasAuthorship W1567976587A5034275813 @default.
• W1567976587 hasAuthorship W1567976587A5086564045 @default.
• W1567976587 hasBestOaLocation W15679765871 @default.
• W1567976587 hasConcept C121332964 @default.
• W1567976587 hasConcept C1276947 @default.
• W1567976587 hasConcept C151730666 @default.
• W1567976587 hasConcept C183582522 @default.
• W1567976587 hasConcept C198352243 @default.
• W1567976587 hasConcept C2524010 @default.
• W1567976587 hasConcept C2779343474 @default.
• W1567976587 hasConcept C33923547 @default.
• W1567976587 hasConcept C41008148 @default.
• W1567976587 hasConcept C44870925 @default.
• W1567976587 hasConcept C554190296 @default.
• W1567976587 hasConcept C555520305 @default.
• W1567976587 hasConcept C65155139 @default.
• W1567976587 hasConcept C73329638 @default.
• W1567976587 hasConcept C76155785 @default.
• W1567976587 hasConcept C86803240 @default.
• W1567976587 hasConcept C98444146 @default.
• W1567976587 hasConceptScore W1567976587C121332964 @default.
• W1567976587 hasConceptScore W1567976587C1276947 @default.
• W1567976587 hasConceptScore W1567976587C151730666 @default.
• W1567976587 hasConceptScore W1567976587C183582522 @default.
• W1567976587 hasConceptScore W1567976587C198352243 @default.
• W1567976587 hasConceptScore W1567976587C2524010 @default.
• W1567976587 hasConceptScore W1567976587C2779343474 @default.
• W1567976587 hasConceptScore W1567976587C33923547 @default.
• W1567976587 hasConceptScore W1567976587C41008148 @default.
• W1567976587 hasConceptScore W1567976587C44870925 @default.
• W1567976587 hasConceptScore W1567976587C554190296 @default.
• W1567976587 hasConceptScore W1567976587C555520305 @default.
• W1567976587 hasConceptScore W1567976587C65155139 @default.
• W1567976587 hasConceptScore W1567976587C73329638 @default.
• W1567976587 hasConceptScore W1567976587C76155785 @default.
• W1567976587 hasConceptScore W1567976587C86803240 @default.
• W1567976587 hasConceptScore W1567976587C98444146 @default.
• W1567976587 hasIssue "2" @default.
• W1567976587 hasLocation W15679765871 @default.
• W1567976587 hasLocation W15679765872 @default.
• W1567976587 hasOpenAccess W1567976587 @default.
• W1567976587 hasPrimaryLocation W15679765871 @default.

• next