the first smbhs -...
TRANSCRIPT
ThefirstSMBHsIndicationsfrommodels
Stergios Amarantidis [email protected]
Corfu19June2019Credit:ESO/M.Kornmesser
arXiv:1902.07982
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Goalofthisproject
• StudytheAGN/SMBHpopulationatEoR
• Usingcosmologicalgalaxyformationandevolutionmodels
• Predictionsforthenextgenerationoftelescopes
• Comparisonandindicationsfromthemodels
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Goalofthisproject
highz size
• StudytheAGN/SMBHpopulationatEoR
• Usingcosmologicalgalaxyformationandevolutionmodels
• Predictionsforthenextgenerationoftelescopes
• Comparisonandindicationsfromthemodels
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Galaxyformationmodels
• Semi-AnalyticModels(SAMs)– 4models
• ~500Mpc ~5kpc ~10# − 10%M⊙
• Hydro-dynamicalsimulations(HDSs)– 4models
• ~100Mpc ~1kpc ~10( − 10)M⊙
DarkMatter Models
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Galaxyformationmodels
• PredictionsforthelocalandhighzUniverse
• Comparisonwithobservations– tuningofparameters
• Futuretelescopes(SKA,Athena,JWST,etc)
Qin+17Rosas-Guevara+16
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X-rayLFs:local
• ForeachSMBH:M,M,α
• Bolometricluminosity
• Corrections
• Matchwithobservations
• Tuningofmodels
• Radiativeefficiency
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X-rayLFs
• ForeachSMBH:M,M,α
• Bolometricluminosity
• Corrections
• Matchwithobservations
• Tuningofmodels
• Radiativeefficiency
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Radiativeefficiency(ε)
• Spinparameter
• ϵ = 1 − 1 − ./
01234
• r678 = f α
• L<86 = ϵMc. → L.?0@ABC
• LDBE ∝ α. → L0.HIJK
• ⬆L ⟺⬆ΔΦ
(Bardeen+72)
(Blandford+77)
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RadioLFs
• Matchwithobservations
• 2accretionscenarios
• Normalizationparameters
• Degeneracy
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RadioLFs
• Matchwithobservations
• 2accretionscenarios
• Normalizationparameters
• Degeneracy
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AccretingscenariosQuasarmode - Thindisc(Shakura-Sunyaev model)
Radiomode - ADAFdisc(advection-dominated accretion)�� =
����PQQ
= 0.01(Meier+99)
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Degeneracy
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Results:EoR
• Athena25Mssurvey
• ∼ 5000SMBHs/deg.
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Results:EoR
• Athena25Mssurvey
• ∼ 5000SMBHs/deg.
• SKAdeepsurveyband2
• ∼ 400SMBHs/deg.
• Modelsvarysubstantially
• Limitations
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Indicationsfrommodels:Volume
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Indicationsfrommodels:SMBHgrowth
300
100
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300
100
Indicationsfrommodels:SMBHgrowth
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Indicationsfrommodels:SEaccretion
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Indicationsfrommodels:SEaccretion
Credit:ESO/M.Kornmesser
Conclusions
• Useofcosmologicalmodels
• Predictionsforfuturesurveys/telescopes
• Limitationsofpredictions
• Volume/SMBHseeds/accretionphysics
• Futureimprovements