2025
Signatures of black hole seeding in the local Universe: predictions from the BRAHMA cosmological simulations
Bhowmick A, Blecha L, Torrey P, Somerville R, Kelley L, Weinberger R, Vogelsberger M, Hernquist L, Natarajan P, Kho J, Di Matteo T. Signatures of black hole seeding in the local Universe: predictions from the BRAHMA cosmological simulations. Monthly Notices Of The Royal Astronomical Society 2025, 538: 518-536. DOI: 10.1093/mnras/staf269.Peer-Reviewed Original ResearchBlack holeDwarf galaxiesSeed modelLocal UniverseBlack hole seedsLow-redshift constraintsSupermassive black holesLocalized black holesLyman–Werner radiationGas accretionRedshift constraintsAccretion physicsCosmological simulationsBH populationMerger dynamicsOccupation fractionGalaxiesDwarfAccretionMergerMass seedsSpinSignaturePhysicsHoles
2024
Detecting Population III Stars through Tidal Disruption Events in the Era of JWST and Roman
Chowdhury R, Chang J, Dai L, Natarajan P. Detecting Population III Stars through Tidal Disruption Events in the Era of JWST and Roman. The Astrophysical Journal Letters 2024, 966: l33. DOI: 10.3847/2041-8213/ad41b7.Peer-Reviewed Original ResearchTidal disruption eventsPop III starsIII starsEarly universeNancy Grace Roman Space TelescopeBlack hole mass functionEra of JWSTMass fallback rateMetal-free starsMassive black holesPopulation III starsRoman Space TelescopeDisruptive eventsPristine gasSpace TelescopeBlack holeStar formationEvolution timescalesFallback ratePopulation IIIFlare emissionHeavy elementsMass functionStarsLocal Universe
2023
Evidence for heavy-seed origin of early supermassive black holes from a z ≈ 10 X-ray quasar
Bogdán Á, Goulding A, Natarajan P, Kovács O, Tremblay G, Chadayammuri U, Volonteri M, Kraft R, Forman W, Jones C, Churazov E, Zhuravleva I. Evidence for heavy-seed origin of early supermassive black holes from a z ≈ 10 X-ray quasar. Nature Astronomy 2023, 8: 126-133. DOI: 10.1038/s41550-023-02111-9.Peer-Reviewed Original ResearchFirst black holesSupermassive black holesStellar massBlack holesBH massBig BangHost galaxy stellar massChandra X-ray ObservatoryJames Webb Space TelescopeEarly supermassive black holesGalaxy stellar massStellar mass ratioX-ray ObservatoryMassive black holesHigh BH massesObservations of quasarsX-ray quasarsLarge black holesFirst starsLocal UniverseAbell 2744Host galaxiesSpace TelescopeEddington limitRedshift z
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