2025
The ∞ Galaxy: A Candidate Direct-collapse Supermassive Black Hole between Two Massive, Ringed Nuclei
van Dokkum P, Brammer G, Baggen J, Keim M, Natarajan P, Pasha I. The ∞ Galaxy: A Candidate Direct-collapse Supermassive Black Hole between Two Massive, Ringed Nuclei. The Astrophysical Journal Letters 2025, 988: l6. DOI: 10.3847/2041-8213/addcfe.Peer-Reviewed Original ResearchSupermassive black holesGalaxy hostsBlack holeChandra X-ray dataRest-frame equivalent widthSupermassive black hole formationX-ray luminosityHead-on collisionKeck spectroscopyStellar massCollisional ringsCOSMOS fieldEquivalent widthBullet ClusterRadio dataDirect collapseGravitational collapseRadial velocityGalaxiesExcess emissionJWST imagesX-ray dataCompact nucleiNear-IR lightProminent rings
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 relation
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