Matches in SemOpenAlex for { <https://semopenalex.org/work/W3102928995> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W3102928995 endingPage "383" @default.
- W3102928995 startingPage "375" @default.
- W3102928995 abstract "In the perturbative approach, substructures in the lens can be reduced to their effect on the two perturbative fields f1 and df0/dθ. A simple generic model of an elliptical lens with a substructure situated near the critical radius is investigated in detail. Analytical expressions are derived for each perturbative field, and basic properties are analysed. The power spectrum of the fields is well approximated by a power law, resulting in significant tails at high frequencies. Another feature of the perturbation by a substructure is that the ratio of the power spectrum at order n of the two fields Rn is almost one. The ratio Rn≃ 1 is specific to substructures, for instance a higher order distortion (n > 2) but with autosimilar isophotes will result in Rn∝ 1/n2. Finally, the problem of reconstructing the perturbative field is investigated. Local field models are implemented and fitted to maximize image similarity in the source plane. The non-linear optimization is greatly facilitated, since in the perturbative approach the circular source solution is always known. Examples of image distortions in the subcritical regime due to substructures are presented, and analysed for different source shapes. Provided enough images and signal are available, the substructure field can be identified confidently. These results suggest that the perturbative method is an efficient tool to estimate the contribution of substructures to the mass distribution of lenses." @default.
- W3102928995 created "2020-11-23" @default.
- W3102928995 creator A5045060623 @default.
- W3102928995 date "2008-07-21" @default.
- W3102928995 modified "2023-10-11" @default.
- W3102928995 title "Perturbative signature of substructures in strong gravitational lenses" @default.
- W3102928995 cites W2010581546 @default.
- W3102928995 cites W2026835335 @default.
- W3102928995 cites W2034917883 @default.
- W3102928995 cites W2087753284 @default.
- W3102928995 cites W2096604441 @default.
- W3102928995 cites W2127697427 @default.
- W3102928995 cites W2135024285 @default.
- W3102928995 cites W2139031955 @default.
- W3102928995 cites W2492433970 @default.
- W3102928995 cites W3100261649 @default.
- W3102928995 cites W3102907737 @default.
- W3102928995 doi "https://doi.org/10.1111/j.1365-2966.2008.13397.x" @default.
- W3102928995 hasPublicationYear "2008" @default.
- W3102928995 type Work @default.
- W3102928995 sameAs 3102928995 @default.
- W3102928995 citedByCount "14" @default.
- W3102928995 countsByYear W31029289952012 @default.
- W3102928995 countsByYear W31029289952013 @default.
- W3102928995 countsByYear W31029289952016 @default.
- W3102928995 countsByYear W31029289952017 @default.
- W3102928995 countsByYear W31029289952023 @default.
- W3102928995 crossrefType "journal-article" @default.
- W3102928995 hasAuthorship W3102928995A5045060623 @default.
- W3102928995 hasBestOaLocation W31029289951 @default.
- W3102928995 hasConcept C105795698 @default.
- W3102928995 hasConcept C120665830 @default.
- W3102928995 hasConcept C121332964 @default.
- W3102928995 hasConcept C126780896 @default.
- W3102928995 hasConcept C127413603 @default.
- W3102928995 hasConcept C15336307 @default.
- W3102928995 hasConcept C168110828 @default.
- W3102928995 hasConcept C174256460 @default.
- W3102928995 hasConcept C177918212 @default.
- W3102928995 hasConcept C194257627 @default.
- W3102928995 hasConcept C202444582 @default.
- W3102928995 hasConcept C33923547 @default.
- W3102928995 hasConcept C46362747 @default.
- W3102928995 hasConcept C49040817 @default.
- W3102928995 hasConcept C62520636 @default.
- W3102928995 hasConcept C66938386 @default.
- W3102928995 hasConcept C9652623 @default.
- W3102928995 hasConcept C99679407 @default.
- W3102928995 hasConceptScore W3102928995C105795698 @default.
- W3102928995 hasConceptScore W3102928995C120665830 @default.
- W3102928995 hasConceptScore W3102928995C121332964 @default.
- W3102928995 hasConceptScore W3102928995C126780896 @default.
- W3102928995 hasConceptScore W3102928995C127413603 @default.
- W3102928995 hasConceptScore W3102928995C15336307 @default.
- W3102928995 hasConceptScore W3102928995C168110828 @default.
- W3102928995 hasConceptScore W3102928995C174256460 @default.
- W3102928995 hasConceptScore W3102928995C177918212 @default.
- W3102928995 hasConceptScore W3102928995C194257627 @default.
- W3102928995 hasConceptScore W3102928995C202444582 @default.
- W3102928995 hasConceptScore W3102928995C33923547 @default.
- W3102928995 hasConceptScore W3102928995C46362747 @default.
- W3102928995 hasConceptScore W3102928995C49040817 @default.
- W3102928995 hasConceptScore W3102928995C62520636 @default.
- W3102928995 hasConceptScore W3102928995C66938386 @default.
- W3102928995 hasConceptScore W3102928995C9652623 @default.
- W3102928995 hasConceptScore W3102928995C99679407 @default.
- W3102928995 hasIssue "1" @default.
- W3102928995 hasLocation W31029289951 @default.
- W3102928995 hasLocation W31029289952 @default.
- W3102928995 hasLocation W31029289953 @default.
- W3102928995 hasLocation W31029289954 @default.
- W3102928995 hasLocation W31029289955 @default.
- W3102928995 hasLocation W31029289956 @default.
- W3102928995 hasOpenAccess W3102928995 @default.
- W3102928995 hasPrimaryLocation W31029289951 @default.
- W3102928995 hasRelatedWork W1979083399 @default.
- W3102928995 hasRelatedWork W2022126107 @default.
- W3102928995 hasRelatedWork W2023846184 @default.
- W3102928995 hasRelatedWork W2043946748 @default.
- W3102928995 hasRelatedWork W2153916713 @default.
- W3102928995 hasRelatedWork W2284584236 @default.
- W3102928995 hasRelatedWork W2329056228 @default.
- W3102928995 hasRelatedWork W2374530195 @default.
- W3102928995 hasRelatedWork W2703419385 @default.
- W3102928995 hasRelatedWork W2091885410 @default.
- W3102928995 hasVolume "388" @default.
- W3102928995 isParatext "false" @default.
- W3102928995 isRetracted "false" @default.
- W3102928995 magId "3102928995" @default.
- W3102928995 workType "article" @default.