FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2077898581> ?p ?o ?g. }

• W2077898581 endingPage "395" @default.
• W2077898581 startingPage "385" @default.
• W2077898581 abstract "The Solar and Heliospheric Observatory (SOHO) Ultraviolet Coronagraph Spectrometer is used to observe the interplanetary He focusing cone within 1 AU. Taken over 2 yr and from differing orbit positions, the series of observations includes measurements of He I 584 Å and Lyβ intensities. The cone itself is spatially well defined, and the He I intensity within the cone was ~45 R in 1996 December, compared with ~1 R for lines of sight outward from 1 AU. Between 1996 December and 1998 June, the focusing cone dimmed by a factor of 3.3 as the level of solar activity rose. This is the first time that interstellar helium is observed so near the Sun. Measured intensities are compared to a detailed temperature and density model of interstellar helium in the solar system. The model includes EUV ionization but does not include ionization by electron impact from solar wind electrons. There are several features in the data model comparison that we attribute to the absence of electron impact ionization in the model. The absolute maximum intensity of 45 R first measured in 1996 December calls for an ionization 45% more intense than the EUV photoionization alone as measured by the Solar EUV Monitor/Charge, Element, and Isotope Analysis System (SEM/CELIAS) on SOHO. Important day-to-day variations of the intensity are observed, as well as a general decrease as the solar activity rises (both absolute and divided by a model with a constant ionization). This general decrease is even larger than predicted by a model run with the SEM/CELIAS photoionization rate alone, in spite of a factor of 1.5 increase of this rate from 1996 December to 1998 June. At this time, an additional ionization rate of 0.56 × 10-7 s-1 (compared with 1.00 × 10-7 s-1 from solar EUV) is required to fit the measured low intensity. We attribute this additional rate to solar wind electron impact ionization of the atoms. This shows that the helium intensity pattern is a very sensitive indicator of the electron density and temperature near the Sun." @default.
• W2077898581 created "2016-06-24" @default.
• W2077898581 creator A5003329703 @default.
• W2077898581 creator A5011303839 @default.
• W2077898581 creator A5021587079 @default.
• W2077898581 creator A5028724092 @default.
• W2077898581 creator A5029783940 @default.
• W2077898581 creator A5035033071 @default.
• W2077898581 creator A5039645188 @default.
• W2077898581 creator A5056028507 @default.
• W2077898581 creator A5063672406 @default.
• W2077898581 creator A5067341856 @default.
• W2077898581 creator A5067450410 @default.
• W2077898581 creator A5068234531 @default.
• W2077898581 creator A5073985416 @default.
• W2077898581 creator A5078577547 @default.
• W2077898581 creator A5080065181 @default.
• W2077898581 creator A5071444141 @default.
• W2077898581 date "2002-03-20" @default.
• W2077898581 modified "2023-10-08" @default.
• W2077898581 title "The Helium Focusing Cone of the Local Interstellar Medium Close to the Sun" @default.
• W2077898581 cites W1965741762 @default.
• W2077898581 cites W1976470089 @default.
• W2077898581 cites W1985906037 @default.
• W2077898581 cites W2018328868 @default.
• W2077898581 cites W2026060665 @default.
• W2077898581 cites W2028280885 @default.
• W2077898581 cites W2028626285 @default.
• W2077898581 cites W2029966899 @default.
• W2077898581 cites W2048374615 @default.
• W2077898581 cites W2052157851 @default.
• W2077898581 cites W2064468972 @default.
• W2077898581 cites W2070637728 @default.
• W2077898581 cites W2076971458 @default.
• W2077898581 cites W2089543392 @default.
• W2077898581 cites W2092269741 @default.
• W2077898581 cites W4236290810 @default.
• W2077898581 cites W4238159765 @default.
• W2077898581 doi "https://doi.org/10.1086/338764" @default.
• W2077898581 hasPublicationYear "2002" @default.
• W2077898581 type Work @default.
• W2077898581 sameAs 2077898581 @default.
• W2077898581 citedByCount "21" @default.
• W2077898581 countsByYear W20778985812016 @default.
• W2077898581 countsByYear W20778985812019 @default.
• W2077898581 countsByYear W20778985812020 @default.
• W2077898581 crossrefType "journal-article" @default.
• W2077898581 hasAuthorship W2077898581A5003329703 @default.
• W2077898581 hasAuthorship W2077898581A5011303839 @default.
• W2077898581 hasAuthorship W2077898581A5021587079 @default.
• W2077898581 hasAuthorship W2077898581A5028724092 @default.
• W2077898581 hasAuthorship W2077898581A5029783940 @default.
• W2077898581 hasAuthorship W2077898581A5035033071 @default.
• W2077898581 hasAuthorship W2077898581A5039645188 @default.
• W2077898581 hasAuthorship W2077898581A5056028507 @default.
• W2077898581 hasAuthorship W2077898581A5063672406 @default.
• W2077898581 hasAuthorship W2077898581A5067341856 @default.
• W2077898581 hasAuthorship W2077898581A5067450410 @default.
• W2077898581 hasAuthorship W2077898581A5068234531 @default.
• W2077898581 hasAuthorship W2077898581A5071444141 @default.
• W2077898581 hasAuthorship W2077898581A5073985416 @default.
• W2077898581 hasAuthorship W2077898581A5078577547 @default.
• W2077898581 hasAuthorship W2077898581A5080065181 @default.
• W2077898581 hasBestOaLocation W20778985811 @default.
• W2077898581 hasConcept C108411613 @default.
• W2077898581 hasConcept C120665830 @default.
• W2077898581 hasConcept C121332964 @default.
• W2077898581 hasConcept C1276947 @default.
• W2077898581 hasConcept C145148216 @default.
• W2077898581 hasConcept C146024833 @default.
• W2077898581 hasConcept C158749347 @default.
• W2077898581 hasConcept C184779094 @default.
• W2077898581 hasConcept C185544564 @default.
• W2077898581 hasConcept C194462397 @default.
• W2077898581 hasConcept C198291218 @default.
• W2077898581 hasConcept C44870925 @default.
• W2077898581 hasConcept C520434653 @default.
• W2077898581 hasConcept C546029482 @default.
• W2077898581 hasConcept C62520636 @default.
• W2077898581 hasConcept C82706917 @default.
• W2077898581 hasConcept C96819898 @default.
• W2077898581 hasConceptScore W2077898581C108411613 @default.
• W2077898581 hasConceptScore W2077898581C120665830 @default.
• W2077898581 hasConceptScore W2077898581C121332964 @default.
• W2077898581 hasConceptScore W2077898581C1276947 @default.
• W2077898581 hasConceptScore W2077898581C145148216 @default.
• W2077898581 hasConceptScore W2077898581C146024833 @default.
• W2077898581 hasConceptScore W2077898581C158749347 @default.
• W2077898581 hasConceptScore W2077898581C184779094 @default.
• W2077898581 hasConceptScore W2077898581C185544564 @default.
• W2077898581 hasConceptScore W2077898581C194462397 @default.
• W2077898581 hasConceptScore W2077898581C198291218 @default.
• W2077898581 hasConceptScore W2077898581C44870925 @default.
• W2077898581 hasConceptScore W2077898581C520434653 @default.
• W2077898581 hasConceptScore W2077898581C546029482 @default.
• W2077898581 hasConceptScore W2077898581C62520636 @default.
• W2077898581 hasConceptScore W2077898581C82706917 @default.
• W2077898581 hasConceptScore W2077898581C96819898 @default.

• next