Matches in SemOpenAlex for { <https://semopenalex.org/work/W2980489506> ?p ?o ?g. }
- W2980489506 endingPage "1529" @default.
- W2980489506 startingPage "1507" @default.
- W2980489506 abstract "We present a novel technique for Cosmic Microwave Background (CMB) foreground subtraction based on the framework of blind source separation. Inspired by previous work incorporating local variation to Generalized Morphological Component Analysis (GMCA), we introduce Hierarchical GMCA (HGMCA), a Bayesian hierarchical graphical model for source separation. We test our method on $N_{rm side}=256$ simulated sky maps that include dust, synchrotron, free-free and anomalous microwave emission, and show that HGMCA reduces foreground contamination by $25%$ over GMCA in both the regions included and excluded by the Planck UT78 mask, decreases the error in the measurement of the CMB temperature power spectrum to the $0.02-0.03%$ level at $ell>200$ (and $<0.26%$ for all $ell$), and reduces correlation to all the foregrounds. We find equivalent or improved performance when compared to state-of-the-art Internal Linear Combination (ILC)-type algorithms on these simulations, suggesting that HGMCA may be a competitive alternative to foreground separation techniques previously applied to observed CMB data. Additionally, we show that our performance does not suffer when we perturb model parameters or alter the CMB realization, which suggests that our algorithm generalizes well beyond our simplified simulations. Our results open a new avenue for constructing CMB maps through Bayesian hierarchical analysis." @default.
- W2980489506 created "2019-10-25" @default.
- W2980489506 creator A5000635779 @default.
- W2980489506 creator A5015938482 @default.
- W2980489506 creator A5058877254 @default.
- W2980489506 creator A5070286426 @default.
- W2980489506 date "2020-03-19" @default.
- W2980489506 modified "2023-09-25" @default.
- W2980489506 title "A novel CMB component separation method: hierarchical generalized morphological component analysis" @default.
- W2980489506 cites W118387223 @default.
- W2980489506 cites W1939462249 @default.
- W2980489506 cites W1969599611 @default.
- W2980489506 cites W1976579441 @default.
- W2980489506 cites W1976761078 @default.
- W2980489506 cites W1991846813 @default.
- W2980489506 cites W1993112157 @default.
- W2980489506 cites W1993987614 @default.
- W2980489506 cites W2013214019 @default.
- W2980489506 cites W2025177494 @default.
- W2980489506 cites W2025402290 @default.
- W2980489506 cites W2049184973 @default.
- W2980489506 cites W2064690675 @default.
- W2980489506 cites W2066994405 @default.
- W2980489506 cites W2067709708 @default.
- W2980489506 cites W2071232376 @default.
- W2980489506 cites W2075894130 @default.
- W2980489506 cites W2082064932 @default.
- W2980489506 cites W2096897625 @default.
- W2980489506 cites W2107260249 @default.
- W2980489506 cites W2108841276 @default.
- W2980489506 cites W2112154139 @default.
- W2980489506 cites W2116048240 @default.
- W2980489506 cites W2118059901 @default.
- W2980489506 cites W2123649031 @default.
- W2980489506 cites W2128773267 @default.
- W2980489506 cites W2134212793 @default.
- W2980489506 cites W2136463719 @default.
- W2980489506 cites W2136807582 @default.
- W2980489506 cites W2139937287 @default.
- W2980489506 cites W2141436987 @default.
- W2980489506 cites W2144216231 @default.
- W2980489506 cites W2181889564 @default.
- W2980489506 cites W2205664421 @default.
- W2980489506 cites W2230322673 @default.
- W2980489506 cites W2346842152 @default.
- W2980489506 cites W2402725606 @default.
- W2980489506 cites W2479409071 @default.
- W2980489506 cites W2557373807 @default.
- W2980489506 cites W3099372341 @default.
- W2980489506 cites W3100537878 @default.
- W2980489506 cites W3103381875 @default.
- W2980489506 cites W3103804433 @default.
- W2980489506 cites W3105565537 @default.
- W2980489506 cites W3124793989 @default.
- W2980489506 cites W4248681815 @default.
- W2980489506 cites W4292400014 @default.
- W2980489506 cites W4292875581 @default.
- W2980489506 cites W4297402762 @default.
- W2980489506 cites W4297924433 @default.
- W2980489506 doi "https://doi.org/10.1093/mnras/staa744" @default.
- W2980489506 hasPublicationYear "2020" @default.
- W2980489506 type Work @default.
- W2980489506 sameAs 2980489506 @default.
- W2980489506 citedByCount "5" @default.
- W2980489506 countsByYear W29804895062020 @default.
- W2980489506 countsByYear W29804895062021 @default.
- W2980489506 countsByYear W29804895062022 @default.
- W2980489506 crossrefType "journal-article" @default.
- W2980489506 hasAuthorship W2980489506A5000635779 @default.
- W2980489506 hasAuthorship W2980489506A5015938482 @default.
- W2980489506 hasAuthorship W2980489506A5058877254 @default.
- W2980489506 hasAuthorship W2980489506A5070286426 @default.
- W2980489506 hasBestOaLocation W29804895064 @default.
- W2980489506 hasConcept C107673813 @default.
- W2980489506 hasConcept C11413529 @default.
- W2980489506 hasConcept C120665830 @default.
- W2980489506 hasConcept C121332964 @default.
- W2980489506 hasConcept C121864883 @default.
- W2980489506 hasConcept C124101348 @default.
- W2980489506 hasConcept C144986985 @default.
- W2980489506 hasConcept C154945302 @default.
- W2980489506 hasConcept C166126730 @default.
- W2980489506 hasConcept C168167062 @default.
- W2980489506 hasConcept C207297109 @default.
- W2980489506 hasConcept C41008148 @default.
- W2980489506 hasConcept C44870925 @default.
- W2980489506 hasConcept C51432778 @default.
- W2980489506 hasConcept C62796785 @default.
- W2980489506 hasConcept C73329638 @default.
- W2980489506 hasConcept C85725439 @default.
- W2980489506 hasConcept C97355855 @default.
- W2980489506 hasConceptScore W2980489506C107673813 @default.
- W2980489506 hasConceptScore W2980489506C11413529 @default.
- W2980489506 hasConceptScore W2980489506C120665830 @default.
- W2980489506 hasConceptScore W2980489506C121332964 @default.
- W2980489506 hasConceptScore W2980489506C121864883 @default.
- W2980489506 hasConceptScore W2980489506C124101348 @default.
- W2980489506 hasConceptScore W2980489506C144986985 @default.