J/ApJ/961/246 SED analysis of X-ray selected AGN in Stripe 82 (Setoguchi+, 2024) ================================================================================ Multiwavelength spectral energy distribution analysis of X-ray selected active galactic nuclei at z=0.2-0.8 in the Stripe 82 region. Setoguchi K., Ueda Y., Toba Y., Li J., Silverman J., Uematsu R. =2024ApJ...961..246S ================================================================================ ADC_Keywords: Active gal. nuclei; Redshifts; Spectra, optical; Energy distributions; Black holes; X-ray sources Keywords: Active galactic nuclei ; Supermassive black holes ; Active galaxies Abstract: We perform a systematic, multiwavelength spectral energy distribution (SED) analysis of X-ray detected active galactic nuclei (AGNs) at z=0.2-0.8 with Sloan Digital Sky Survey (SDSS) counterparts in the Stripe 82 region, consisting of 60 type 1 and 137 type 2 AGNs covering a 2-10keV luminosity range of 41.645) type 1 AGNs at z~1.5. This can be explained by the AGN luminosity dependence of log(M_BH_/M_stellar_), which little evolves with redshift. We confirm the trend that the UV-to-X-ray slope ({alpha}_OX_) or X-ray-to-bolometric correction factor ({kappa}_2-10_) increases with AGN luminosity or Eddington ratio. We find that type 1 and type 2 AGNs with the same luminosity ranges share similar host stellar mass distributions, whereas type 2s tend to show smaller AGN luminosities than type 1s. This supports the luminosity-dependent (or Eddington-ratio-dependent) unified scheme. Description: Li+ (2021ApJ...918...22L) cataloged 371 optical type 1 AGNs at z=0.2-0.8 within the Stripe 82X region. Among them, we selected 111 objects detected with XMM-Newton and/or Chandra that have SDSS Data Release 14 (DR14) spectroscopic redshifts and multiwavelength counterparts in Ananna+ (2017, J/ApJ/850/66) and LaMassa+ (2016, J/ApJ/817/172). Finally, 66 objects whose fluxes are decomposed in all grizy bands were chosen. We also selected 158 X-ray selected, optical type 2 AGNs at z=0.2-0.8 from the Stripe 82X catalog (LaMassa+ 2016, , J/ApJ/817/172 and Ananna+ 2017, J/ApJ/850/66). See Section 2. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table3.dat 71 60 Summary of properties of X-ray detected type-1 AGNs and hosts table5.dat 48 137 Summary of properties of X-ray detected type-2 AGNs and hosts -------------------------------------------------------------------------------- See also: B/xmm : XMM-Newton Obs. Log (XMM-Newton Science Operation Center, 2012-) B/chandra : The Chandra Archive Log (CXC, 1999-2014) II/367 : The VISTA Hemisphere Survey (VHS) catalog DR5 (McMahon+, 2020) VII/286 : SDSS quasar catalog, fourteenth data release (Paris+, 2018) VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020) J/AJ/127/3075 : MIR population of ELAIS-S1 sample (La Franca+, 2004) J/AJ/130/387 : SDSS-ROSAT AGN data (Strateva+, 2005) J/A+A/474/473 : XMM-LSS survey: AGN classifications (Garcet+, 2007) J/ApJS/179/124 : Subaru/XMM-Newton deep survey (SXDS) III. (Ueda+, 2008) J/ApJ/690/1236 : COSMOS photometric redshift catalog (Ilbert+, 2009) J/A+A/512/A34 : XMM-COSMOS Type 1 AGNs (Lusso+, 2010) J/ApJ/708/137 : Broad-line AGNs in zCOSMOS survey (Merloni+, 2010) J/PASJ/65/113 : 0.006<=z<=0.8 IR galaxies with AKARI (Toba+, 2013) J/ApJ/796/60 : ECDFS galaxies phot. redshifts & counterparts (Hsu+, 2014) J/ApJ/788/45 : Luminosity and redshift of gal. from WISE/SDSS (Toba+, 2014) J/ApJS/210/22 : Herschel Stripe 82 survey (HerS) first cat. (Viero+, 2014) J/ApJ/811/91 : SDSS-RM project: z<1 QSO host galaxies (Matsuoka+, 2015) J/ApJ/813/82 : z<0.06 broad-line AGN emission-line measures (Reines+, 2015) J/MNRAS/456/1359 : IAC Stripe 82 Legacy Project: Photometry (Fliri+, 2016) J/ApJ/817/172 : X-ray Observations of Stripe 82 (LaMassa+, 2016) J/ApJS/225/1 : SpIES: the Spitzer IRAC Equatorial Survey (Timlin+, 2016) J/ApJ/850/66 : Stripe 82X survey multiwavelength catalog (Ananna+, 2017) J/ApJ/850/74 : Swift/BAT AGN Spectroscopic Survey. I. (Koss+, 2017) J/A+A/619/A95 : X-ray/UV ratio of AGN (Chiaraluce+, 2018) J/ApJ/861/37 : WISE-selected QSOs in SDSS Stripe 82 (Glikman+, 2018) J/ApJ/876/50 : X-ray & IR AGNs in Stripe 82 with eBOSS sp. (LaMassa+, 2019) J/ApJ/878/11 : Type 1 vs 2 X-ray-selected COSMOS AGNs (Zou+, 2019) J/ApJS/249/17 : SDSS QSO DR14 spectral properties (Rakshit+, 2020) J/ApJ/912/91 : A value-added cat. for SDSS DR16 QSOs at z<0.7 (Toba+, 2021) Byte-by-byte Description of file: table3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 18 A18 --- SDSS Unique identifier in SDSS DR14Q catalog (HHMMSS.ss+DDMMSS.s; J2000) 20- 38 A19 --- SpecObjID Unique spectrum identifier in SDSS DR14 40- 44 F5.3 --- z [0.24/0.8] Redshift from the SDSS spectra 46- 50 F5.2 [10-7W] logLbol [43.39/45.74] Logarithmic bolometric AGN luminosity (G1) 52- 55 F4.2 [Msun] logMBH [6.9/9.3] Logarithmic black hole mass 57- 60 F4.2 [Msun] e_logMBH [0.05/1.11] The 1 sigma uncertainty in logMBH 62- 66 F5.2 [Msun] logMs [9.96/11.4] Logarithmic stellar mass 68- 71 F4.2 [Msun] e_logMs [0.16/0.3] The 1 sigma uncertainty in logMs -------------------------------------------------------------------------------- Byte-by-byte Description of file: table5.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 5 A5 --- ID Unique identifier in Stripe 82X catalog (1) 7- 25 A19 --- SpecObjID Unique spectrum identifier in SDSS DR14 27- 31 F5.3 --- z [0.2/0.8] Redshift from SDSS spectra 33- 37 F5.2 [10-7W] logLbol [43.31/45.75] Logarithmic bolometric AGN luminosity (G1) 39- 43 F5.2 [Msun] logMs [9.45/11.13] Logarithmic stellar mass 45- 48 F4.2 [Msun] e_logMs [0.02/0.3] The 1 sigma uncertainty in logMs -------------------------------------------------------------------------------- Note (1): IDs are from Ananna+ 2017, J/ApJ/850/66 except for 3459 which is 135301 in Ananna+ 2017, J/ApJ/850/66; note added by CDS. -------------------------------------------------------------------------------- Note (G1): Derived by CIGALE, for which we adopt the output parameter "agn.accretion power". In units of erg/s. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Prepared by [AAS], Emmanuelle Perret [CDS] 10-Apr-2026