2024
Multiwavelength Constraints on the Local Black Hole Occupation Fraction
Burke C, Natarajan P, Baldassare V, Geha M. Multiwavelength Constraints on the Local Black Hole Occupation Fraction. The Astrophysical Journal 2024, 978: 77. DOI: 10.3847/1538-4357/ad94d9.Peer-Reviewed Original ResearchBlack hole occupation fractionIntermediate-mass black holesActive galactic nucleiAGN luminosity functionBlack hole seedsLuminosity functionOccupation fractionDwarf galaxiesLaser Interferometer Space Antenna missionVery Large Array Sky SurveyBlack hole mass functionFraction of dwarf galaxiesArray Sky SurveyLow-luminosity endPalomar Transient FactoryMass of MAccretion signaturesGalactic nucleiIMBH populationMultiwavelength constraintsStellar massBlack holeLow redshiftRadio dataSky Survey
2022
Exploring the High-redshift PBH-ΛCDM Universe: Early Black Hole Seeding, the First Stars and Cosmic Radiation Backgrounds
Cappelluti N, Hasinger G, Natarajan P. Exploring the High-redshift PBH-ΛCDM Universe: Early Black Hole Seeding, the First Stars and Cosmic Radiation Backgrounds. The Astrophysical Journal 2022, 926: 205. DOI: 10.3847/1538-4357/ac332d.Peer-Reviewed Original ResearchPrimordial black holesCold dark matter universeJames Webb Space TelescopeHalo occupation distribution modelsCosmic radiation backgroundActive galactic nucleiDark matter componentX-ray backgroundBlack hole seedsEmission power spectraCurrent observational limitsSource count distributionFirst starsBaryonic matterGalactic nucleiStar formationDark matterSolar massesVolume emissivitySpace TelescopeLow redshiftLuminosity functionReionization historyObservational limitsObservational implications
2009
Angular momentum and clustering properties of early dark matter haloes
Davis A, Natarajan P. Angular momentum and clustering properties of early dark matter haloes. Monthly Notices Of The Royal Astronomical Society 2009, 393: 1498-1502. DOI: 10.1111/j.1365-2966.2008.14267.x.Peer-Reviewed Original ResearchDark matter haloesMatter haloesAngular momentumCold dark matter paradigmEarly dark matter halosDark matter paradigmHigh-spin haloesAngular momentum propertiesFirst starsHigh redshiftMassive haloesRedshift slicesLow redshiftMass binsMomentum propertiesSpin distributionHaloRedshiftMomentumStarsUniverseSpinDispersionPropertiesEarlier work
2006
Could GRB 060614 and Its Presumed Host Galaxy Be a Chance Superposition?
Cobb B, Bailyn C, van Dokkum P, Natarajan P. Could GRB 060614 and Its Presumed Host Galaxy Be a Chance Superposition? The Astrophysical Journal 2006, 651: l85-l88. DOI: 10.1086/509724.Peer-Reviewed Original ResearchGalaxy orbits and the intracluster gas temperature in clusters
Benatov L, Rines K, Natarajan P, Kravtsov A, Nagai D. Galaxy orbits and the intracluster gas temperature in clusters. Monthly Notices Of The Royal Astronomical Society 2006, 370: 427-434. DOI: 10.1111/j.1365-2966.2006.10490.x.Peer-Reviewed Original ResearchHigh-resolution cosmological N-body simulationsCosmological N-body simulationsX-ray gasX-ray observationsIntracluster gas temperatureN-body simulationsVelocity anisotropy parameterBaryonic physicsGalaxy orbitsGalaxy velocitiesJeans equationMultiwavelength observationsHigh redshiftLow redshiftGravitational lensingROSAT dataMass profileGravitational potentialHydrostatic equilibriumAnisotropy parametersGas tracesGalaxiesOrbital structureRedshiftGas temperature
2004
Modeling the Accretion History of Supermassive Black Holes
Natarajan P. Modeling the Accretion History of Supermassive Black Holes. Astrophysics And Space Science Library 2004, 308: 127-145. DOI: 10.1007/978-1-4020-2471-9_4.Peer-Reviewed Original ResearchSupermassive black holesBlack holesAccretion historyGrowth of SMBHsMost nearby galaxiesObservations of galaxiesX-ray wavebandsCold dark matterRemnant black holeBlack hole massLocal black holesStellar kinematicsLocal galaxiesDark matterNearby galaxiesLow redshiftCosmic timeHole massQuasar phenomenonMass estimatesGalaxiesSemi-analytic approachTheoretical modelingHolesStructure formation
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