J/ApJ/936/75ivo://CDS.VizieR/J/ApJ/936/75doi:10.26093/cds/vizier.19360075CDSLi S.-S.Feng H.-C.Liu H.T.Bai J.M.Li R.Lu K.-X.Wang J.-G.,Huang Y.-K.Zhang Z.-X.2024-11-06T20:27:25Z2024-07-09T07:57:23ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fractive-galactic-nucleiblack-holesseyfert-galaxiesspectroscopyvisible-astronomyh-alpha-photometryh-beta-photometrynarrow-band-photometryChanging-look active galactic nucleus NGC4151, which has attracted a lot of attention, is undergoing the second dramatic outburst stage in its evolutionary history. To investigate the geometry and kinematics of the broad- line region (BLR), and measure the mass of supermassive black hole in NGC4151, we perform a 7 month photometric and spectroscopic monitoring program in 2020-2021, using the 2.4m telescope at Lijiang Observatory. We successfully measure the time lags of the responses from broad H{alpha}, H{beta}, H{gamma}, HeI, and HeII emission lines to continuum variation, which are 7.63_-2.62_^+1.85^, 6.21_-1.13_^+1.41^, {.67_-1.94_^+1.65^, 1.59_-1.11_^+0.86^, and 0.46_-1.06_^+1.22^days, respectively, following radial stratification. The ratios of time lags among these lines are 1.23: 1.00: 0.91: 0.26: 0.07. We find that the continuum lag between the ultraviolet and optical bands can significantly affect the lag measurements of HeI and HeII. Virial and infalling gas motions coexist in this campaign, which is different from previous results, implying the evolutionary kinematics of BLR. Based on our measurements and previous ones in the literature, we confirm that the BLR of NGC 4151 is basically virialized. Finally, we compute the black hole mass through multiple lines, and the measurement from H{beta} to be 3.94_-0.72_^+0.90^x10^7^M{sun}, which is consistent with previous results. The corresponding accretion rate is 0.02_-0.01_^+0.01^L_{Eddc^-2^_, implying a sub-Eddington accretor.2022ApJ...936...75Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/936/75CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/613/682 : AGN central masses & broad-line region size (Peterson+, 2004)J/A+A/486/99 : Long-term spectral variability NGC 4151 (Shapovalova+, 2008)J/MNRAS/426/416 : Mrk6 H{alpha}, H{beta} & H{gamma} spectra (Doroshenko+, 2012)J/ApJ/782/45 : SEAMBHs I. Mrk 142, Mrk 335, and IRAS F12397+3333 (Du+, 2014)J/ApJ/788/159 : 17 Seyfert 1 galaxies light curves (Koshida+, 2014)J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)J/ApJ/793/108 : SEAMBHs. II. Continuum and Hbeta LCs (Wang+, 2014)J/ApJS/217/26 : Lick AGN monitoring 2011; light curves (Barth+, 2015)J/ApJ/840/41 : X-ray/UV Swift monitoring of NGC 4151 (Edelson+, 2017)J/ApJ/840/97 : Opt reverberation mapping campaign 5 AGNs (Fausnaugh+, 2017)J/ApJ/866/133 : Continuum-H{beta} light curves of 5 Seyfert1 (De Rosa+, 2018)J/ApJ/869/142 : Monitoring AGNs with H{beta} Asymmetry (MAHA). I. (Du+, 2018)J/ApJ/887/135 : V-band, 5100{AA} and broad emission LCs of Mrk 79 (Lu+, 2019)J/ApJ/876/49 : 10yr reverberation mapping campaign for 3C273 (Zhang+, 2019)J/ApJ/905/77 : Monitoring AGNs with Hbeta Asymmetry II. (Brotherton+, 2020)J/ApJ/896/1 : SEAMBHs. XI. Mrk 142 X-ray to optical lc (Cackett+, 2020)J/ApJ/905/75 : 3yrs spectroscopic light curves of PG0026+129 (Hu+, 2020)J/ApJ/890/71 : 5100AA continuum & emission lines LCs PG2130+099 (Hu+, 2020)J/ApJ/902/26 : HST opt. & H-band obs. of Cepheids in NGC4151 (Yuan+, 2020)J/ApJ/909/18 : Reverberation mapping monitoring of NGC3516 (Feng+, 2021)J/ApJ/912/92 : Lijiang/YFOSC light curves of NGC 2617 (Feng+, 2021)J/ApJS/253/20 : SEAMBHs XII. Reberberation mapping for 15 PG QSOs (Hu+, 2021)J/ApJ/920/9 : YFOSC light curves of PG 0923+201 and PG 1001+291 (Li+, 2021)J/ApJ/918/50 : Reverberation mapping for Mrk 817 and NGC 7469 (Lu+, 2021)J/ApJ/912/126 : B and JHKL light curves of NGC 4151 (Lyu+, 2021)J/A+A/659/A13 : PG 2130+099 narrowband light curves (Fian+, 2022)J/ApJ/928/60 : Virial factor of SDSS DR5 QSOs (Liu+, 2022)J/ApJ/925/52 : LAMP 2016 velocity-resolved Hb lags in Seyfert gal (U+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/936/75https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/936/75http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/936/75https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/936/75https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/936/75http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/936/75GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/936/75/table1Broad Emission-line and Photometric Light CurvesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDSpec[9162/9351]? Julian Date spectrum obtained; JD-2450000dtime.epochfloatnullableFHa[147/181]? H{alpha} emission line flux (1)1e-13mW.m**-2phot.flux;spect.linefloatnullablee_FHa[1.81/1.84]? Uncertainty in FHa1e-13mW.m**-2stat.errorfloatnullableFHb[46.2/59.3]? H{beta} emission line flux (1)1e-13mW.m**-2phot.flux;spect.linefloatnullablee_FHb[0.7/0.8]? Uncertainty in FHb1e-13mW.m**-2stat.errorfloatnullableFHg[19.2/25.9]? H{gamma} emission line flux (1)1e-13mW.m**-2phot.flux;spect.linefloatnullablee_FHg[0.6/0.7]? Uncertainty in FHg1e-13mW.m**-2stat.errorfloatnullableFHeI[7.36/11.1]? HeI emission line flux (1)1e-13mW.m**-2phot.flux;spect.linefloatnullablee_FHeI[0.2/0.3]? Uncertainty in FHeI1e-13mW.m**-2stat.errorfloatnullableFHeII[7.81/20.1]? HeII emission line flux (1)1e-13mW.m**-2phot.flux;spect.linefloatnullablee_FHeII[1/2]? Uncertainty in FHeII1e-13mW.m**-2stat.errorfloatnullableJDPhot[9153/9394] Julian Date photometry obtained; JD-2450000dtime.epochfloatmag[12.6/12.97] Apparent magnitude (2)magphot.magfloate_mag[0.01/0.03] Uncertainty in magmagstat.error;phot.magfloatTelTelescope code for the photometry (3)meta.code;instr.telchar