FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1966182214> ?p ?o ?g. }

• W1966182214 endingPage "1618" @default.
• W1966182214 startingPage "1604" @default.
• W1966182214 abstract "We present and describe im3shape, a new publicly available galaxy shape measurement code for weak gravitational lensing shear. im3shape performs a maximum likelihood fit of a bulge-plus-disc galaxy model to noisy images, incorporating an applied point spread function. We detail challenges faced and choices made in its design and implementation, and then discuss various limitations that affect this and other maximum likelihood methods. We assess the bias arising from fitting an incorrect galaxy model using simple noise-free images and find that it should not be a concern for current cosmic shear surveys. We test im3shape on the Gravitational Lensing Accuracy Testing 2008 (GREAT08) challenge image simulations, and meet the requirements for upcoming cosmic shear surveys in the case that the simulations are encompassed by the fitted model, using a simple correction for image noise bias. For the fiducial branch of GREAT08 we obtain a negligible additive shear bias and sub-two per cent level multiplicative bias, which is suitable for analysis of current surveys. We fall short of the sub-per cent level requirement for upcoming surveys, which we attribute to a combination of noise bias and the mismatch between our galaxy model and the model used in the GREAT08 simulations. We meet the requirements for current surveys across all branches of GREAT08, except those with small or high noise galaxies, which we would cut from our analysis. Using the GREAT08 metric we we obtain a score of Q = 717 for the usable branches, relative to the goal of Q = 1000 for future experiments. The code is freely available from https://bitbucket.org/joezuntz/im3shape" @default.
• W1966182214 created "2016-06-24" @default.
• W1966182214 creator A5023622105 @default.
• W1966182214 creator A5035813533 @default.
• W1966182214 creator A5037398308 @default.
• W1966182214 creator A5067089721 @default.
• W1966182214 creator A5068049945 @default.
• W1966182214 creator A5088173195 @default.
• W1966182214 date "2013-07-22" @default.
• W1966182214 modified "2023-09-30" @default.
• W1966182214 title "im3shape: a maximum likelihood galaxy shear measurement code for cosmic gravitational lensing" @default.
• W1966182214 cites W1934041234 @default.
• W1966182214 cites W1982857458 @default.
• W1966182214 cites W1984264593 @default.
• W1966182214 cites W1988118425 @default.
• W1966182214 cites W2013339949 @default.
• W1966182214 cites W2030352066 @default.
• W1966182214 cites W2033162405 @default.
• W1966182214 cites W2034077004 @default.
• W1966182214 cites W2037260948 @default.
• W1966182214 cites W2039411883 @default.
• W1966182214 cites W2044932392 @default.
• W1966182214 cites W2058090178 @default.
• W1966182214 cites W2082892318 @default.
• W1966182214 cites W2091357206 @default.
• W1966182214 cites W2098596607 @default.
• W1966182214 cites W2098683668 @default.
• W1966182214 cites W2102182691 @default.
• W1966182214 cites W2110006677 @default.
• W1966182214 cites W2114004946 @default.
• W1966182214 cites W2119118966 @default.
• W1966182214 cites W2120007806 @default.
• W1966182214 cites W2129957835 @default.
• W1966182214 cites W2135573541 @default.
• W1966182214 cites W2139771717 @default.
• W1966182214 cites W2143749056 @default.
• W1966182214 cites W2147677411 @default.
• W1966182214 cites W2161831012 @default.
• W1966182214 cites W2169600915 @default.
• W1966182214 cites W3037365294 @default.
• W1966182214 cites W3086626494 @default.
• W1966182214 cites W3100641840 @default.
• W1966182214 cites W3100735996 @default.
• W1966182214 cites W3101033813 @default.
• W1966182214 cites W3101237866 @default.
• W1966182214 cites W3101860507 @default.
• W1966182214 cites W3101876678 @default.
• W1966182214 cites W3105451886 @default.
• W1966182214 cites W3105795957 @default.
• W1966182214 cites W3121289492 @default.
• W1966182214 cites W3121348619 @default.
• W1966182214 cites W3122226463 @default.
• W1966182214 cites W3122516478 @default.
• W1966182214 cites W3124945482 @default.
• W1966182214 cites W3125762999 @default.
• W1966182214 cites W3125854573 @default.
• W1966182214 cites W4297834272 @default.
• W1966182214 cites W4300173727 @default.
• W1966182214 doi "https://doi.org/10.1093/mnras/stt1125" @default.
• W1966182214 hasPublicationYear "2013" @default.
• W1966182214 type Work @default.
• W1966182214 sameAs 1966182214 @default.
• W1966182214 citedByCount "91" @default.
• W1966182214 countsByYear W19661822142013 @default.
• W1966182214 countsByYear W19661822142014 @default.
• W1966182214 countsByYear W19661822142015 @default.
• W1966182214 countsByYear W19661822142016 @default.
• W1966182214 countsByYear W19661822142017 @default.
• W1966182214 countsByYear W19661822142018 @default.
• W1966182214 countsByYear W19661822142019 @default.
• W1966182214 countsByYear W19661822142020 @default.
• W1966182214 countsByYear W19661822142021 @default.
• W1966182214 countsByYear W19661822142022 @default.
• W1966182214 countsByYear W19661822142023 @default.
• W1966182214 crossrefType "journal-article" @default.
• W1966182214 hasAuthorship W1966182214A5023622105 @default.
• W1966182214 hasAuthorship W1966182214A5035813533 @default.
• W1966182214 hasAuthorship W1966182214A5037398308 @default.
• W1966182214 hasAuthorship W1966182214A5067089721 @default.
• W1966182214 hasAuthorship W1966182214A5068049945 @default.
• W1966182214 hasAuthorship W1966182214A5088173195 @default.
• W1966182214 hasBestOaLocation W19661822142 @default.
• W1966182214 hasConcept C11413529 @default.
• W1966182214 hasConcept C115961682 @default.
• W1966182214 hasConcept C121332964 @default.
• W1966182214 hasConcept C154945302 @default.
• W1966182214 hasConcept C190670322 @default.
• W1966182214 hasConcept C33024259 @default.
• W1966182214 hasConcept C41008148 @default.
• W1966182214 hasConcept C44870925 @default.
• W1966182214 hasConcept C59375849 @default.
• W1966182214 hasConcept C68498078 @default.
• W1966182214 hasConcept C98444146 @default.
• W1966182214 hasConcept C99498987 @default.
• W1966182214 hasConceptScore W1966182214C11413529 @default.
• W1966182214 hasConceptScore W1966182214C115961682 @default.
• W1966182214 hasConceptScore W1966182214C121332964 @default.
• W1966182214 hasConceptScore W1966182214C154945302 @default.

• next