J/ApJS/272/11 BH masses for AGNs behind the MCs from MQS & OGLE (Panda+, 2024) ================================================================================ Virial black hole masses for active galactic nuclei behind the Magellanic Clouds. Panda S., Kozlowski S., Gromadzki M., Wrona M., Iwanek P., Udalski A., Szymanski M.K., Soszynski I., Pietrukowicz P., Ulaczyk K., Skowron J., Poleski R., Mroz P., Skowron D.M., Rybicki K., Mroz M. =2024ApJS..272...11P ================================================================================ ADC_Keywords: Active gal. nuclei; Spectra, optical; Redshifts; Photometry, VRI ; Extinction; Black holes; Magellanic Clouds; Surveys Keywords: Active galactic nuclei ; Supermassive black holes ; Quasars Abstract: We use the spectroscopic data collected by the Magellanic Quasars Survey (MQS) and the photometric V- and I-band data from the Optical Gravitational Lensing Experiment (OGLE) to measure the physical parameters for active galactic nuclei (AGNs) located behind the Magellanic Clouds. The flux-uncalibrated MQS spectra were obtained with the 4m Anglo-Australian Telescope and the AAOmega spectroscope (R=1300) in a typical ~1.5hr visit. They span a spectral range of 3700-8500{AA} and have signal-to-noise ratios in a range of 3-300. We report the discovery and observational properties of 161 AGNs in this footprint, which expands the total number of spectroscopically confirmed AGNs by MQS to 919. After the conversion of the OGLE mean magnitudes to the monochromatic luminosities at 5100, 3000, and 1350{AA}, we were able to reliably measure the black hole masses for 165 out of 919 AGNs. The remaining physical parameters we provide are the bolometric luminosities and the Eddington ratios. A fraction of these AGNs have been observed by the OGLE survey since 1997 (all of them since 2001), enabling studies of correlations between the variability and physical parameters of these AGNs. Description: In this paper, we analyze spectra for AGNs discovered behind the Magellanic Clouds and obtained by the Magellanic Quasars Survey (MQS; Kozlowski+ 2011, J/ApJS/194/22 and 2012, J/ApJ/746/27 and 2013, J/ApJ/775/92). The ~4000 spectroscopically observed AGN candidates were selected based on their mid-IR and optical colors, optical variability in the OGLE-III survey, and the X-ray flux. They were observed with the 4m Anglo-Australian Telescope (AAT) equipped with the AAOmega spectroscope, producing a resolution of R~1300 inside a spectral range of 3700-8800{AA} in the 580V (blue channel) and 385R (red channel) gratings. We have reinspected all the MQS spectra in this analysis and identified 161 additional AGNs, albeit faint (Table A1). We also use the V- and I-band light curves from the Optical Gravitational Lensing Experiment (OGLE; Udalski+ 1997AcA....47..319U 2008AcA....58...69U and 2015AcA....65....1U) to calculate both the monochromatic and bolometric AGN luminosities. The data have been collected since 1997 with the 1.3m Warsaw Telescope located in Las Campanas Observatory, Chile. We calculate the absolute V and I magnitudes for each AGN assuming a standard {Lambda}CDM cosmological model with ({Omega}_{Lambda}_, {Omega}_M_ , {Omega}_k_)=(0.72, 0.28, 0.0) and H_0_=70km/s/Mpc to calculate the distance modulus (DM). See Section 3.1. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file tablea1.dat 159 161 Observational parameters for the new 161 Magellanic Quasars Survey (MQS) sources tablea2.dat 116 165 Observational parameters for the 165 MQS sources tablea3.dat 140 165 AGN monochromatic luminosities and FWHMs for prominent broad emission lines for the 165 MQS sources tablea4.dat 163 165 AGN bolometric luminosities, black hole masses, and Eddington ratios for the 165 MQS sources -------------------------------------------------------------------------------- See also: J/ApJS/166/470 : SDSS-Spitzer type I QSOs IR photometry (Richards+, 2006) J/ApJ/698/895 : Variations in QSOs optical flux (Kelly+, 2009) J/ApJ/699/800 : Mass functions of active black holes (Vestergaard+, 2009) J/ApJS/194/22 : Magellanic Quasars Survey: QSOs behind SMC (Kozlowski+, 2011) J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011) J/ApJ/746/27 : MQS. II. AGNs behind LMC (Kozlowski+, 2012) J/ApJ/775/92 : MQS III: AGNs behind LMC and SMC (Kozlowski+, 2013) J/ApJ/804/L15 : SDSS-DR7 broad-line QSOs (Sun+, 2015) J/ApJS/228/9 : Physical param. of ~300000 SDSS-DR12 QSOs (Kozlowski, 2017) J/ApJ/886/42 : Reverberation mapping & opt. spectra data of AGNs (Du+, 2019) J/ApJS/241/34 : The SDSS Reverberation Mapping (SDSS-RM) project (Shen+, 2019) J/ApJ/903/112 : SDSS Hb & CIV reverberation mapped AGNs (Dalla Bonta+, 2020) J/ApJS/249/17 : SDSS QSO DR14 spectral properties (Rakshit+, 2020) J/other/Sci/373.789 : optical variability of AGNs (Burke+, 2021) J/ApJS/252/23 : E(V-I) reddening map of MCs from OGLE-IV (Skowron+, 2021) J/ApJ/933/180 : TDSS. Changing-look quasars candidates (Green+, 2022) Byte-by-byte Description of file: tablea1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 23 A23 --- Name MQS name (MQS_JHHMMSS.ss+DDMMSS.s) 25 I1 h RAh [0/6] Hour of Right ascension (J2000) 27- 28 I2 min RAm Minute of Right ascension (J2000) 30- 34 F5.2 s RAs Second of Right ascension (J2000) 36 A1 --- DE- [-] Sign of the Declination (J2000) 38- 39 I2 deg DEd [66/74] Degree of Declination (J2000) 41- 42 I2 arcmin DEm Arcminute of Declination (J2000) 44- 47 F4.1 arcsec DEs Arcsecond of Declination (J2000) 49- 53 F5.3 --- z [0.25/2.8] Redshift 55- 60 F6.3 mag DM [40.56/46.9] Distance modulus 62- 67 F6.3 mag VmagAvg [18.68/21.95]? Mean observed magnitude in V-band 69- 74 F6.3 mag ImagAvg [17.63/21.21]? Mean observed magnitude in I-band 76- 80 F5.3 mag ExtV [0.07/1.2] Extinction in V-band 82- 86 F5.3 mag ExtI [0.039/0.66] Extinction in I-band 88- 93 F6.3 mag KcorrV [-0.7/0.013] K-correction in V-band 95- 100 F6.3 mag KcorrI [-0.22/0.25] K-correction in I-band 102- 108 F7.3 mag VMag [-27.21/-19.49]? Absolute magnitude in V-band 110- 116 F7.3 mag IMag [-28.32/-20.3]? Absolute magnitude in I-band 118- 123 F6.3 [10-7W] logL5100 [43.22/44.81]? Monochromatic AGN luminosity estimated at 510nm (1) 125- 130 F6.3 [10-7W] e_logL5100 [0.06/0.091]? Uncertainty in logL5100 132- 138 F7.3 [10-7W] logL3000 [43.7/46.23]? Monochromatic AGN luminosity estimated at 300nm (1) 140- 145 F6.3 [10-7W] e_logL3000 [0.04/0.091]? Uncertainty in logL3000 147- 152 F6.3 [10-7W] logL1350 [44.9/46.5]? Monochromatic AGN luminosity estimated at 135nm (1) 154- 159 F6.3 [10-7W] e_logL1350 [0.06/0.1]? Uncertainty in logL1350 -------------------------------------------------------------------------------- Note (1): Using photometric scaling. -------------------------------------------------------------------------------- Byte-by-byte Description of file: tablea2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 23 A23 --- Name MQS name (MQS_JHHMMSS.ss+DDMMSS.s) 25 I1 h RAh [0/5] Hour of Right ascension (J2000) 27- 28 I2 min RAm Minute of Right ascension (J2000) 30- 34 F5.2 s RAs Second of Right ascension (J2000) 36 A1 --- DE- [-] Sign of the Declination (J2000) 38- 39 I2 deg DEd [66/74] Degree of Declination (J2000) 41- 42 I2 arcmin DEm Arcminute of Declination (J2000) 44- 47 F4.1 arcsec DEs Arcsecond of Declination (J2000) 49- 53 F5.3 --- z [0.149/3.2] Redshift 55- 60 F6.3 mag DM [39.25/47.21] Distance modulus 62- 67 F6.3 mag VmagAvg [17.29/21.84] Mean observed magnitude in V-band 69- 74 F6.3 mag ImagAvg [16.78/21.32] Mean observed magnitude in I-band 76- 80 F5.3 mag ExtV [0.07/0.7] Extinction in V-band 82- 86 F5.3 mag ExtI [0.04/0.4] Extinction in I-band 88- 93 F6.3 mag KcorrV [-0.84/0.02] K-correction in V-band 95- 100 F6.3 mag KcorrI [-0.3/0.25] K-correction in I-band 102- 108 F7.3 mag VMag [-27.6/-18.43] Absolute magnitude in V-band 110- 116 F7.3 mag IMag [-28.55/-20.21] Absolute magnitude in I-band -------------------------------------------------------------------------------- Byte-by-byte Description of file: tablea3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 23 A23 --- Name MQS name (MQS_JHHMMSS.ss+DDMMSS.s) 25- 30 F6.3 [10-7W] logL5100 [43.22/45.44]? Monochromatic AGN luminosity estimated at 510nm (1) 32- 37 F6.3 [10-7W] e_logL5100 [0.058/0.091]? Uncertainty in logL5100 39- 44 F6.3 [10-7W] logL3000 [44/46.5]? Monochromatic AGN luminosity estimated at 300nm (1) 46- 51 F6.3 [10-7W] e_logL3000 [0.04/0.091]? Uncertainty in logL3000 53- 58 F6.3 [10-7W] logL1350 [45.28/46.64]? Monochromatic AGN luminosity estimated at 135nm (1) 60- 65 F6.3 [10-7W] e_logL1350 [0.059/0.1]? Uncertainty in logL1350 67- 74 F8.3 km/s FWHM-Ha [2077/9347]? Full-width at half maximum of broad Ha profile 76- 83 F8.3 km/s e_FWHM-Ha [5.7/1383]? Uncertainty in FWHM-Ha 85- 93 F9.3 km/s FWHM-Hb [1259/17884]? Full-width at half maximum of broad Hb profile 95- 102 F8.3 km/s e_FWHM-Hb [0.1/5264]? Uncertainty in FWHM-Hb 104- 112 F9.3 km/s FWHM-MgII [2831/10013]? Full-width at half maximum of broad MgII profile 114- 121 F8.3 km/s e_FWHM-MgII [5.9/1526]? Uncertainty in FWHM-MgII 123- 130 F8.3 km/s FWHM-CIV [2831/6226]? Full-width at half maximum of broad CIV profile 132- 140 F9.3 km/s e_FWHM-CIV [109/13802]? Uncertainty in FWHM-CIV -------------------------------------------------------------------------------- Note (1): Using photometric scaling. -------------------------------------------------------------------------------- Byte-by-byte Description of file: tablea4.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 23 A23 --- Name MQS name (MQS_JHHMMSS.ss+DDMMSS.s) 25- 30 F6.3 [10-7W] logLbol5100 [44.19/46.4]? Bolometric luminosity estimated using L5100 32- 37 F6.3 [10-7W] e_logLbol5100 [0.058/0.1]? Uncertainty in logLbol5100 39- 44 F6.3 [10-7W] logLbol3000 [44.74/47.21]? Bolometric luminosity estimated using L3000 46- 51 F6.3 [10-7W] e_logLbol3000 [0.04/0.1]? Uncertainty in logLbol3000 53- 58 F6.3 [10-7W] logLbol1350 [45.86/47.23]? Bolometric luminosity estimated using L1350 60- 65 F6.3 [10-7W] e_logLbol1350 [0.059/0.1]? Uncertainty in logLbol1350 67- 72 F6.3 [Msun] logMBHHa [7.44/8.9]? Black hole mass estimated using L5100 and FWHM-Ha 74- 79 F6.3 [Msun] e_logMBHHa [0.03/0.2]? Uncertainty in logMBHHa 81- 86 F6.3 [Msun] logMBHHb [7.27/9.52]? Black hole mass estimated using L5100 and FWHM-Hb 88- 93 F6.3 [Msun] e_logMBHHb [0.029/3.6]? Uncertainty in logMBHHb 95- 100 F6.3 [Msun] logMBHMgII [8.05/9.5]? Black hole mass estimated using L3000 and FWHM-MgII 102- 107 F6.3 [Msun] e_logMBHMgII [0.02/0.41]? Uncertainty in logMBHMgII 109- 114 F6.3 [Msun] logMBHCIV [8.52/9.3]? Black hole mass estimated using L1350 and FWHM-CIV 116- 121 F6.3 [Msun] e_logMBHCIV [0.05/4.3]? Uncertainty in logMBHCIV 123- 128 F6.3 --- Edd5100Hb [-2.9/-0.17]? Eddington ratio estimated using Lbol from 510nm and Hb-based MBH 130- 135 F6.3 --- e_Edd5100Hb [0.08/3.6]? Uncertainty in Edd5100Hb 137- 142 F6.3 --- Edd5100MgII [-1.62/-0.1]? Eddington ratio estimated using Lbol from 300nm and MgII-based MBH 144- 149 F6.3 --- e_Edd5100MgII [0.068/0.5]? Error in Edd5100MgII 151- 156 F6.3 --- Edd5100CIV [-0.73/0.13]? Eddington ratio estimated using Lbol from 135nm and CIV-based MBH 158- 163 F6.3 --- e_Edd5100CIV [0.1/4.4]? Error in Edd5100CIV -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Prepared by [AAS], Emmanuelle Perret [CDS] 08-Aug-2024