2024
DAVOS: Dwarf Active Galactic Nuclei from Variability for the Origins of Seeds: Properties of Variability-selected Active Galactic Nuclei in the COSMOS Field and Expectations for the Rubin Observatory
Burke C, Liu Y, Ward C, Liu X, Natarajan P, Greene J. DAVOS: Dwarf Active Galactic Nuclei from Variability for the Origins of Seeds: Properties of Variability-selected Active Galactic Nuclei in the COSMOS Field and Expectations for the Rubin Observatory. The Astrophysical Journal 2024, 971: 140. DOI: 10.3847/1538-4357/ad54ca.Peer-Reviewed Original ResearchActive galactic nucleiBlack holeGalactic nucleiCOSMOS fieldIntermediate-mass black hole candidatesHost galaxy stellar massVirial black hole massesVariable active galactic nucleiHyper Suprime-Cam Subaru Strategic ProgramBroad-line widthsStellar mass relationBlack hole candidatesBlack hole massCentral black holeHigh-precision photometryGalaxy stellar massStellar mass estimatesLow-mass galaxiesEarly-type galaxiesSubaru Strategic ProgramBroad-lineHole massStellar massActive galaxiesMass relationX-Ray View of Little Red Dots: Do They Host Supermassive Black Holes?
Ananna T, Bogdán Á, Kovács O, Natarajan P, Hickox R. X-Ray View of Little Red Dots: Do They Host Supermassive Black Holes? The Astrophysical Journal Letters 2024, 969: l18. DOI: 10.3847/2041-8213/ad5669.Peer-Reviewed Original ResearchSupermassive black holesStellar mass estimatesBlack holeMass estimatesSMBH massHa emissionAccreting supermassive black holesHost supermassive black holesEddington-limited accretionMass upper limitIntense star formationOvermassive black holesVirial mass estimatesX-ray emissionLensing galaxy clustersChandra observationsChandra dataEddington limitStellar massGalaxy clustersHigher redshiftsStar formationLensing magnificationVirial relationIndividual galaxies
2023
First Detection of an Overmassive Black Hole Galaxy UHZ1: Evidence for Heavy Black Hole Seed Formation from Direct Collapse
Natarajan P, Pacucci F, Ricarte A, Bogdán Á, Goulding A, Cappelluti N. First Detection of an Overmassive Black Hole Galaxy UHZ1: Evidence for Heavy Black Hole Seed Formation from Direct Collapse. The Astrophysical Journal Letters 2023, 960: l1. DOI: 10.3847/2041-8213/ad0e76.Peer-Reviewed Original ResearchSpectral energy distributionDirect collapseChandra X-ray sourcesTemplate spectral energy distributionsCompton-thick quasarsStellar mass estimatesSupermassive black holesX-ray fluxBlack hole seedsHigh-redshift objectsBlack hole massX-ray sourcesX-ray detectionExcellent agreementMultiwavelength propertiesBH seedsEddington rateBH massEarly universeBolometric luminosityHole massL bolPrior theoretical predictionsBig BangBlack holesUNCOVER: The Growth of the First Massive Black Holes from JWST/NIRSpec—Spectroscopic Redshift Confirmation of an X-Ray Luminous AGN at z = 10.1
Goulding A, Greene J, Setton D, Labbe I, Bezanson R, Miller T, Atek H, Bogdán Á, Brammer G, Chemerynska I, Cutler S, Dayal P, Fudamoto Y, Fujimoto S, Furtak L, Kokorev V, Khullar G, Leja J, Marchesini D, Natarajan P, Nelson E, Oesch P, Pan R, Papovich C, Price S, van Dokkum P, Wang B, Weaver J, Whitaker K, Zitrin A. UNCOVER: The Growth of the First Massive Black Holes from JWST/NIRSpec—Spectroscopic Redshift Confirmation of an X-Ray Luminous AGN at z = 10.1. The Astrophysical Journal Letters 2023, 955: l24. DOI: 10.3847/2041-8213/acf7c5.Peer-Reviewed Original ResearchSupermassive black holesBlack holesX-ray luminous AGNJames Webb Space TelescopeUV/optical spectrumFirst massive black holesPowerful X-ray sourcesStellar mass estimatesMassive black holesCentral black holeEarly black holesX-ray sourcesRedshift confirmationHost galaxiesLuminous AGNStellar populationsSpace TelescopeHeavy obscurationBH massHigh redshiftPhotometric redshiftsOptical spectraSpectroscopic confirmationPhotometric estimatesCosmic evolution
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