FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W762365323> ?p ?o ?g. }

• W762365323 abstract "Program A100 was awarded 50 ksec of FUSE observing time. Targets alpha TrA (K3 II) and gamma Cru (N13 III) were originally assigned 25 ksec each, to be observed in the medium aperture. Once the in-flight performance and telescope alignment problems were known, the observations were reprogrammed to optimized the scientific return of the program. alpha TrA was scheduled for 25 ksec observations in both the medium and large apertures. The principle aim of this program was to measure the stellar FUV line and continuum emission, in order to estimate the photoionization radiation field and to determine the level of stellar activity through the fluxes in the collisionally excited high temperature diagnostics: C III 977A and O VI 1032,1038A doublet. The medium aperture observations were obtained successfully while the large aperture observations were thought by Johns Hopkins University (JHU)to be lost to satellite problems. There was insufficient signal-to noise in the medium aperture short wavelength SiC channels to do quantitative science. The long wavelength LiF spectra are of high signal-to-noise (SN) and show pronounced emission lines near lambdalambda1100 - 1140A. Emission had been observed at these wavelength in low resolution and low SN ORFEUS-SPAS 11 spectra obtained by Dupree & Brickhouse (1998 ApJ 500, L33), however, they were unable to identify these features. One of the first problems faced in the early FUSE mission was establishing a reliable wavelength scale, especially between the different channels. With the medium aperture data in hand we decided to identify the features and thereby establish an absolute wavelength scale for the channels where the emission occurred. We first established that the emission was fluorescent. and then we constructed a fluorescent line formation model for all neutrals. and singly ionized species with atomic numbers up to 28, and the H2 molecule. We used datasets of radiative rates and energy levels which were as complete as possible and available in an electronic format (millions of transitions). We found that most, but not all, emission was from Fe II pumped by H Lyalpha. This is not typical fluorescence, since the emission is shortward of the pumping transitions near 1215.6A." @default.
• W762365323 created "2016-06-24" @default.
• W762365323 creator A5018747686 @default.
• W762365323 date "2002-08-28" @default.
• W762365323 modified "2023-09-27" @default.
• W762365323 title "NASA Fuse Cycle 1 Program A100. FUV Spectra of Evolved Late-K and M Stars: Mass Loss revisited and Stellar Activity" @default.
• W762365323 hasPublicationYear "2002" @default.
• W762365323 type Work @default.
• W762365323 sameAs 762365323 @default.
• W762365323 citedByCount "0" @default.
• W762365323 crossrefType "journal-article" @default.
• W762365323 hasAuthorship W762365323A5018747686 @default.
• W762365323 hasConcept C120665830 @default.
• W762365323 hasConcept C121332964 @default.
• W762365323 hasConcept C1276947 @default.
• W762365323 hasConcept C150846664 @default.
• W762365323 hasConcept C24890656 @default.
• W762365323 hasConcept C2780848835 @default.
• W762365323 hasConcept C44870925 @default.
• W762365323 hasConcept C4839761 @default.
• W762365323 hasConcept C6260449 @default.
• W762365323 hasConcept C78336883 @default.
• W762365323 hasConcept C96141758 @default.
• W762365323 hasConceptScore W762365323C120665830 @default.
• W762365323 hasConceptScore W762365323C121332964 @default.
• W762365323 hasConceptScore W762365323C1276947 @default.
• W762365323 hasConceptScore W762365323C150846664 @default.
• W762365323 hasConceptScore W762365323C24890656 @default.
• W762365323 hasConceptScore W762365323C2780848835 @default.
• W762365323 hasConceptScore W762365323C44870925 @default.
• W762365323 hasConceptScore W762365323C4839761 @default.
• W762365323 hasConceptScore W762365323C6260449 @default.
• W762365323 hasConceptScore W762365323C78336883 @default.
• W762365323 hasConceptScore W762365323C96141758 @default.
• W762365323 hasLocation W7623653231 @default.
• W762365323 hasOpenAccess W762365323 @default.
• W762365323 hasPrimaryLocation W7623653231 @default.
• W762365323 hasRelatedWork W1539609490 @default.
• W762365323 hasRelatedWork W1548968411 @default.
• W762365323 hasRelatedWork W1636767520 @default.
• W762365323 hasRelatedWork W1680776995 @default.
• W762365323 hasRelatedWork W1966609693 @default.
• W762365323 hasRelatedWork W1971357157 @default.
• W762365323 hasRelatedWork W1972660778 @default.
• W762365323 hasRelatedWork W1995782855 @default.
• W762365323 hasRelatedWork W2014905658 @default.
• W762365323 hasRelatedWork W2015203825 @default.
• W762365323 hasRelatedWork W2061504820 @default.
• W762365323 hasRelatedWork W2087376836 @default.
• W762365323 hasRelatedWork W2091516034 @default.
• W762365323 hasRelatedWork W2337213422 @default.
• W762365323 hasRelatedWork W3099576067 @default.
• W762365323 hasRelatedWork W3101218421 @default.
• W762365323 hasRelatedWork W3102728650 @default.
• W762365323 hasRelatedWork W3106242880 @default.
• W762365323 hasRelatedWork W3114983019 @default.
• W762365323 hasRelatedWork W2136213354 @default.
• W762365323 isParatext "false" @default.
• W762365323 isRetracted "false" @default.
• W762365323 magId "762365323" @default.
• W762365323 workType "article" @default.