Matches in SemOpenAlex for { <https://semopenalex.org/work/W2031292309> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W2031292309 endingPage "888" @default.
- W2031292309 startingPage "888" @default.
- W2031292309 abstract "Measurements of H-beta, He D3, and Ca(+) 8542-A line emission in 18 quiescent prominences are presented which were performed with a 25-cm coronagraph/coude spectrograph system and an optical multichannel analyzer utilizing a Si-vidicon detector assembly mounted at the single-pass spectrograph port. The data obtained show that the line profiles deviate in the wings from those calculated on the basis of an isothermal atmosphere and a Gaussian absorption coefficient. Both a non-Gaussian microturbulence component and a temperature gradient from prominence-core to coronal values can successfully account for this phenomenon. The line widths from a given line of sight of prominence material are reduced on the basis of a common core emitting region with a temperature of 7500 to 11,600 K and a microturbulent velocity of 4.5 to 7.1 km/s for the isothermal model (these values are 5% to 10% less for the two-temperature model). It is noted that long-period low-amplitude oscillations in the D3 line width and intensity were observed when a specific line of sight in a quiescent prominence was followed. These oscillations are found to remain coherent for as many as 3 or 4 cycles and to be associated with prominence structural activation." @default.
- W2031292309 created "2016-06-24" @default.
- W2031292309 creator A5036799900 @default.
- W2031292309 creator A5055837778 @default.
- W2031292309 creator A5072886112 @default.
- W2031292309 date "1977-12-01" @default.
- W2031292309 modified "2023-09-27" @default.
- W2031292309 title "Measurements of H-beta, He D3, and Ca/+/ 8542-A line emission in quiescent prominences" @default.
- W2031292309 doi "https://doi.org/10.1086/155744" @default.
- W2031292309 hasPublicationYear "1977" @default.
- W2031292309 type Work @default.
- W2031292309 sameAs 2031292309 @default.
- W2031292309 citedByCount "44" @default.
- W2031292309 countsByYear W20312923092012 @default.
- W2031292309 countsByYear W20312923092013 @default.
- W2031292309 countsByYear W20312923092014 @default.
- W2031292309 countsByYear W20312923092016 @default.
- W2031292309 countsByYear W20312923092017 @default.
- W2031292309 countsByYear W20312923092018 @default.
- W2031292309 countsByYear W20312923092020 @default.
- W2031292309 countsByYear W20312923092021 @default.
- W2031292309 countsByYear W20312923092022 @default.
- W2031292309 crossrefType "journal-article" @default.
- W2031292309 hasAuthorship W2031292309A5036799900 @default.
- W2031292309 hasAuthorship W2031292309A5055837778 @default.
- W2031292309 hasAuthorship W2031292309A5072886112 @default.
- W2031292309 hasConcept C115260700 @default.
- W2031292309 hasConcept C121332964 @default.
- W2031292309 hasConcept C1276947 @default.
- W2031292309 hasConcept C180119722 @default.
- W2031292309 hasConcept C193145208 @default.
- W2031292309 hasConcept C198352243 @default.
- W2031292309 hasConcept C199360897 @default.
- W2031292309 hasConcept C2524010 @default.
- W2031292309 hasConcept C2776174256 @default.
- W2031292309 hasConcept C33923547 @default.
- W2031292309 hasConcept C41008148 @default.
- W2031292309 hasConcept C44870925 @default.
- W2031292309 hasConcept C4839761 @default.
- W2031292309 hasConcept C62520636 @default.
- W2031292309 hasConcept C96141758 @default.
- W2031292309 hasConceptScore W2031292309C115260700 @default.
- W2031292309 hasConceptScore W2031292309C121332964 @default.
- W2031292309 hasConceptScore W2031292309C1276947 @default.
- W2031292309 hasConceptScore W2031292309C180119722 @default.
- W2031292309 hasConceptScore W2031292309C193145208 @default.
- W2031292309 hasConceptScore W2031292309C198352243 @default.
- W2031292309 hasConceptScore W2031292309C199360897 @default.
- W2031292309 hasConceptScore W2031292309C2524010 @default.
- W2031292309 hasConceptScore W2031292309C2776174256 @default.
- W2031292309 hasConceptScore W2031292309C33923547 @default.
- W2031292309 hasConceptScore W2031292309C41008148 @default.
- W2031292309 hasConceptScore W2031292309C44870925 @default.
- W2031292309 hasConceptScore W2031292309C4839761 @default.
- W2031292309 hasConceptScore W2031292309C62520636 @default.
- W2031292309 hasConceptScore W2031292309C96141758 @default.
- W2031292309 hasLocation W20312923091 @default.
- W2031292309 hasOpenAccess W2031292309 @default.
- W2031292309 hasPrimaryLocation W20312923091 @default.
- W2031292309 hasRelatedWork W1973877170 @default.
- W2031292309 hasRelatedWork W1989693711 @default.
- W2031292309 hasRelatedWork W1994702306 @default.
- W2031292309 hasRelatedWork W2029125027 @default.
- W2031292309 hasRelatedWork W2077691865 @default.
- W2031292309 hasRelatedWork W2198782689 @default.
- W2031292309 hasRelatedWork W3104025681 @default.
- W2031292309 hasRelatedWork W3106428885 @default.
- W2031292309 hasRelatedWork W3121952711 @default.
- W2031292309 hasRelatedWork W4320033329 @default.
- W2031292309 hasVolume "218" @default.
- W2031292309 isParatext "false" @default.
- W2031292309 isRetracted "false" @default.
- W2031292309 magId "2031292309" @default.
- W2031292309 workType "article" @default.