2024
Strong Lensing by Galaxy Clusters
Natarajan P, Williams L, Bradač M, Grillo C, Ghosh A, Sharon K, Wagner J. Strong Lensing by Galaxy Clusters. Space Science Reviews 2024, 220: 19. DOI: 10.1007/s11214-024-01051-8.Peer-Reviewed Original ResearchNext generation of telescopesDark matter distributionGeneration of telescopesGlobal cosmological parametersDark matterGalaxy clustersLensing observationsBackground galaxiesGravitational lensingHubble constantCosmological parametersStrong lensingMatter distributionParticle natureGalaxiesTelescopeAstrophysicsCosmologyLensesClustersNext generationConstantParticles
2023
New Metrics to Probe the Dynamical State of Galaxy Clusters
Cerini G, Cappelluti N, Natarajan P. New Metrics to Probe the Dynamical State of Galaxy Clusters. The Astrophysical Journal 2023, 945: 152. DOI: 10.3847/1538-4357/acbccb.Peer-Reviewed Original ResearchDynamical stateGalaxy clustersX-ray surface brightness distributionChandra X-ray ObservatoryX-ray surface brightnessHubble Space Telescope dataMass mapsUnderlying gravitational potentialX-ray ObservatoryHot intracluster mediumSpace Telescope dataSurface brightness distributionArchival Chandra dataDifferent dynamical statesMerging clusterIntracluster mediumChandra dataCluster LensingSurface brightnessTelescope dataCluster observationsSupernova SurveyGravitational potentialBrightness distributionMatter distribution
2022
LoVoCCS. I. Survey Introduction, Data Processing Pipeline, and Early Science Results
Fu S, Dell’Antonio I, Chary R, Clowe D, Cooper M, Donahue M, Evrard A, Lacy M, Lauer T, Liu B, McCleary J, Meneghetti M, Miyatake H, Montes M, Natarajan P, Ntampaka M, Pierpaoli E, Postman M, Sohn J, Umetsu K, Utsumi Y, Wilson G. LoVoCCS. I. Survey Introduction, Data Processing Pipeline, and Early Science Results. The Astrophysical Journal 2022, 933: 84. DOI: 10.3847/1538-4357/ac68e8.Peer-Reviewed Original ResearchX-ray luminous galaxy clustersVera C. Rubin Observatory Legacy SurveyDark matter distributionEarly science resultsRubin Observatory Legacy SurveyDark Energy CameraGalaxy populationGalaxy clustersMilky WayLegacy SurveyWeak lensingMatter distributionScience resultsCluster SurveyA3921X-rayLensingLSSTA85ClustersCatalogueScience pipelineTransient studies
2020
The distribution of dark matter and gas spanning 6 Mpc around the post-merger galaxy cluster MS 0451−03
Tam S, Jauzac M, Massey R, Harvey D, Eckert D, Ebeling H, Ellis R, Ghirardini V, Klein B, Kneib J, Lagattuta D, Natarajan P, Robertson A, Smith G. The distribution of dark matter and gas spanning 6 Mpc around the post-merger galaxy cluster MS 0451−03. Monthly Notices Of The Royal Astronomical Society 2020, 496: 4032-4050. DOI: 10.1093/mnras/staa1828.Peer-Reviewed Original ResearchMember galaxiesDark matterHubble Space Telescope imagesFirst core passageDark matter distributionDark matter haloesStar formation processCluster member galaxiesWeak-lensing analysisSpace Telescope imagesXMM-Newton observationsGrowth of structureCluster MSMatter haloesStar formationGalaxy clustersMajor mergersTelescope imagesOptical spectroscopyCore passageCluster collisionsMatter distributionCluster coreLate-stage evolutionGyr
2018
Searching for the 3.5 keV Line in the Deep Fields with Chandra: The 10 Ms Observations
Cappelluti N, Bulbul E, Foster A, Natarajan P, Urry M, Bautz M, Civano F, Miller E, Smith R. Searching for the 3.5 keV Line in the Deep Fields with Chandra: The 10 Ms Observations. The Astrophysical Journal 2018, 854: 179. DOI: 10.3847/1538-4357/aaaa68.Peer-Reviewed Original ResearchSterile neutrino decaysGalactic centerNeutrino decayCosmic X-ray backgroundNavarro-Frenk-White profileDark matter distributionMarkov chain Monte CarloMs Chandra observationsX-ray backgroundMilky WayGalaxy clustersChandra observationsDeep FieldSurvey fieldsKeV lineCharge exchangeEmission linesMatter distributionStatistical fluctuationsMS observationsInstrumental originLine intensitiesObserved linesKeVMonte Carlo
2002
Probing the Mass Distribution in Groups of Galaxies using Gravitational Lensing
Möller O, Natarajan P, Kneib J, Blain A. Probing the Mass Distribution in Groups of Galaxies using Gravitational Lensing. The Astrophysical Journal 2002, 573: 562-575. DOI: 10.1086/340655.Peer-Reviewed Original ResearchGroups of galaxiesIndividual galaxiesGalaxy groupsGravitational lensingΣ confidenceLarge covering fractionsCompact galaxy groupsHubble Space TelescopeMass distributionExternal shearGroup halosAdvanced CameraSpace TelescopeStrong lensingCovering fractionWeak lensingHubble constantGalaxiesShear signalMatter distributionLensingAdditional systematic errorNearby groupsLens systemLensing behavior
1999
Evidence for dark matter in clusters from lensing studies
Natarajan P. Evidence for dark matter in clusters from lensing studies. AIP Conference Proceedings 1999, 478: 295-298. DOI: 10.1063/1.59406.Peer-Reviewed Original Research
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