Matches in SemOpenAlex for { <https://semopenalex.org/work/W2952514013> ?p ?o ?g. }
- W2952514013 endingPage "1082" @default.
- W2952514013 startingPage "1077" @default.
- W2952514013 abstract "Aims. We probe the evolution of the fine-structure constant α with cosmic time. Methods. Accurate positions of the Fe ii lines λ1608, λ2382, and λ2600 are measured in the zabs = 1.84 absorption system from a highresolution (FWHM ∼ 3. 8k m s −1 ) and high signal-to-noise (S/N > 100) spectrum of the quasar Q 1101–264 (zem = 2.15, V = 16.0), integrated for 15.4 h. The Single Ion Differential α Measurement (SIDAM) procedure and the ∆χ 2 method are used to set constraints on ∆α/α. Results. We have found a relative radial velocity shift between the λ1608 and λλ2382, 2600 lines of ∆v = −180 ± 85 m s −1 (both random and systematic errors are included), which, if real, would correspond to ∆α/α = (5.4 ± 2.5) × 10 −6 (1σ C.L.). Considering the strong implications of a such variability, additional observations with comparable accuracy at redshift z ∼ 1.8 are required to confirm this result." @default.
- W2952514013 created "2019-06-27" @default.
- W2952514013 creator A5008210223 @default.
- W2952514013 creator A5013681444 @default.
- W2952514013 creator A5021082083 @default.
- W2952514013 creator A5031906583 @default.
- W2952514013 creator A5047305963 @default.
- W2952514013 creator A5051848532 @default.
- W2952514013 creator A5065148192 @default.
- W2952514013 creator A5076176663 @default.
- W2952514013 date "2007-05-01" @default.
- W2952514013 modified "2023-10-18" @default.
- W2952514013 title "A new measure of ∆α/α at redshift z = 1.84 from very high resolution spectra of Q 1101-264 (Research Note)" @default.
- W2952514013 cites W138059857 @default.
- W2952514013 cites W1515473894 @default.
- W2952514013 cites W1979743700 @default.
- W2952514013 cites W1998871856 @default.
- W2952514013 cites W2004935850 @default.
- W2952514013 cites W2008217811 @default.
- W2952514013 cites W2011453923 @default.
- W2952514013 cites W2015995132 @default.
- W2952514013 cites W2049426589 @default.
- W2952514013 cites W2057582805 @default.
- W2952514013 cites W2071935484 @default.
- W2952514013 cites W2074908409 @default.
- W2952514013 cites W2104123845 @default.
- W2952514013 cites W2131279590 @default.
- W2952514013 cites W2137296653 @default.
- W2952514013 cites W2139214910 @default.
- W2952514013 cites W2148306134 @default.
- W2952514013 cites W2153130534 @default.
- W2952514013 cites W2155916909 @default.
- W2952514013 cites W2160146696 @default.
- W2952514013 cites W2162532521 @default.
- W2952514013 cites W2170120409 @default.
- W2952514013 cites W2950666295 @default.
- W2952514013 cites W2986218762 @default.
- W2952514013 cites W3106390598 @default.
- W2952514013 hasPublicationYear "2007" @default.
- W2952514013 type Work @default.
- W2952514013 sameAs 2952514013 @default.
- W2952514013 citedByCount "8" @default.
- W2952514013 countsByYear W29525140132012 @default.
- W2952514013 crossrefType "journal-article" @default.
- W2952514013 hasAuthorship W2952514013A5008210223 @default.
- W2952514013 hasAuthorship W2952514013A5013681444 @default.
- W2952514013 hasAuthorship W2952514013A5021082083 @default.
- W2952514013 hasAuthorship W2952514013A5031906583 @default.
- W2952514013 hasAuthorship W2952514013A5047305963 @default.
- W2952514013 hasAuthorship W2952514013A5051848532 @default.
- W2952514013 hasAuthorship W2952514013A5065148192 @default.
- W2952514013 hasAuthorship W2952514013A5076176663 @default.
- W2952514013 hasBestOaLocation W29525140131 @default.
- W2952514013 hasConcept C119824511 @default.
- W2952514013 hasConcept C120665830 @default.
- W2952514013 hasConcept C121332964 @default.
- W2952514013 hasConcept C1276947 @default.
- W2952514013 hasConcept C135041427 @default.
- W2952514013 hasConcept C138268822 @default.
- W2952514013 hasConcept C150846664 @default.
- W2952514013 hasConcept C154945302 @default.
- W2952514013 hasConcept C169791425 @default.
- W2952514013 hasConcept C2780009758 @default.
- W2952514013 hasConcept C33024259 @default.
- W2952514013 hasConcept C41008148 @default.
- W2952514013 hasConcept C41074950 @default.
- W2952514013 hasConcept C44870925 @default.
- W2952514013 hasConcept C4839761 @default.
- W2952514013 hasConcept C77088390 @default.
- W2952514013 hasConcept C96141758 @default.
- W2952514013 hasConcept C98444146 @default.
- W2952514013 hasConceptScore W2952514013C119824511 @default.
- W2952514013 hasConceptScore W2952514013C120665830 @default.
- W2952514013 hasConceptScore W2952514013C121332964 @default.
- W2952514013 hasConceptScore W2952514013C1276947 @default.
- W2952514013 hasConceptScore W2952514013C135041427 @default.
- W2952514013 hasConceptScore W2952514013C138268822 @default.
- W2952514013 hasConceptScore W2952514013C150846664 @default.
- W2952514013 hasConceptScore W2952514013C154945302 @default.
- W2952514013 hasConceptScore W2952514013C169791425 @default.
- W2952514013 hasConceptScore W2952514013C2780009758 @default.
- W2952514013 hasConceptScore W2952514013C33024259 @default.
- W2952514013 hasConceptScore W2952514013C41008148 @default.
- W2952514013 hasConceptScore W2952514013C41074950 @default.
- W2952514013 hasConceptScore W2952514013C44870925 @default.
- W2952514013 hasConceptScore W2952514013C4839761 @default.
- W2952514013 hasConceptScore W2952514013C77088390 @default.
- W2952514013 hasConceptScore W2952514013C96141758 @default.
- W2952514013 hasConceptScore W2952514013C98444146 @default.
- W2952514013 hasIssue "3" @default.
- W2952514013 hasLocation W29525140131 @default.
- W2952514013 hasOpenAccess W2952514013 @default.
- W2952514013 hasPrimaryLocation W29525140131 @default.
- W2952514013 hasRelatedWork W1532239545 @default.
- W2952514013 hasRelatedWork W1818353867 @default.
- W2952514013 hasRelatedWork W1979743700 @default.
- W2952514013 hasRelatedWork W1983338467 @default.
- W2952514013 hasRelatedWork W2004935850 @default.