J/ApJS/217/26ivo://CDS.VizieR/J/ApJS/217/26doi:10.26093/cds/vizier.22170026CDSBarth A.J.Bennert V.N.Canalizo G.Filippenko A.V.Gates E.L.,Greene J.E.Li W.Malkan M.A.Pancoast A.Sand D.J.Stern D.Treu T.,Woo J.-H.Assef R.J.Bae H.-J.Brewer B.J.Cenko S.B.Clubb K.I.,Cooper M.C.Diamond-Stanic A.M.Hiner K.D.Honig S.F.Hsiao E.,Kandrashoff M.T.Lazarova M.S.Nierenberg A.M.Rex J.Silverman J.M.,Tollerud E.J.Walsh J.L.2017-10-12T13:00:15Z2015-05-18T12:55:58ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleispectroscopyIn the Spring of 2011 we carried out a 2.5 month reverberation mapping campaign using the 3m Shane telescope at Lick Observatory, monitoring 15 low-redshift Seyfert 1 galaxies. This paper describes the observations, reductions and measurements, and data products from the spectroscopic campaign. The reduced spectra were fitted with a multicomponent model in order to isolate the contributions of various continuum and emission-line components. We present light curves of broad emission lines and the active galactic nucleus (AGN) continuum, and measurements of the broad H{beta} line widths in mean and rms spectra. For the most highly variable AGNs we also measured broad H{beta} line widths and velocity centroids from the nightly spectra. In four AGNs exhibiting the highest variability amplitudes, we detect anticorrelations between broad H{beta} width and luminosity, demonstrating that the broad-line region "breathes" on short timescales of days to weeks in response to continuum variations. We also find that broad H{beta} velocity centroids can undergo substantial changes in response to continuum variations; in NGC 4593, the broad H{beta} velocity shifted by ~250km/s over a 1 month period. This reverberation-induced velocity shift effect is likely to contribute a significant source of confusion noise to binary black hole searches that use multi-epoch quasar spectroscopy to detect binary orbital motion. We also present results from simulations that examine biases that can occur in measurement of broad-line widths from rms spectra due to the contributions of continuum variations and photon-counting noise.2015ApJS..217...26Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/217/26CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/270 : SDSS quasar catalog: tenth data release (Paris+, 2014)II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)VII/248 : Quasars and Active Galactic Nuclei (12th Ed.) (Veron+ 2006)J/ApJS/216/4 : SDSS-RM project: technical overview (Shen+, 2015)J/ApJ/779/109 : 5100{AA} + H{beta} light curves of NGC 5548 (Peterson+, 2013)J/AJ/145/59 : Optical and mid-IR photometry of PTF 10nvg (Hillenbrand+, 2013)J/ApJS/201/23 : Spectroscopy of 88 z<0.7 SDSS QSOs (Eracleous+, 2012)J/ApJ/755/60 : Reverberation mapping for 5 Seyfert 1 galaxies (Grier+, 2012)J/ApJ/753/L2 : Reverberation mapping of AGNs (Assef+, 2012)J/ApJ/751/52 : AGN candidates from WISE, 2MASS & RASS (W2R) (Edelson+, 2012)J/ApJ/732/121 : V-band and H{beta} monitoring of Z299-15 (Barth+, 2011)J/ApJS/189/15 : FeII emission in a sample of AGN spectra (Kovacevic+, 2010)J/ApJ/716/993 : LAMP: reverberation mapping of H and He lines (Bentz+, 2010)J/ApJ/680/169 : SDSS DR5 virial black hole masses (Shen+, 2008)J/ApJ/670/92 : New sample of low-mass black holes in AGN (Greene+, 2007)J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)J/A+A/417/515 : I Zw 1 unusual emission line spectrum (Veron-Cetty+, 2004)J/A+A/369/57 : Monitoring Mkn 279 in BVRI, H{beta} fluxes (Santos-Lleo+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/217/26https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/217/26http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/217/26https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/217/26https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/217/26http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/217/26GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/217/26/table1 (Sample properties and observation parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/217/26/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/217/26/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/217/26/table1?GETtext/xml+votable180.050000true171.400626754.38258690.0055555555555555566/4488 5989 7484 8216 8261 8299 9305 9750 11354 11490 11898 14960 25735 26148 26300https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/217/26?format=asciiOpticaldefaultJ/ApJS/217/26/table4Light curve dataNameGalaxy identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLineContinuum (U_s_) or emission line source (FeII, HeII, H-alpha, -beta, -delta, -gamma)meta.id;spect.lineHJDHeliocentric Julian Date; JD-2450000dtime.epochfloatFlux[0.462/1605] Observed flux (1)aW.m**-2phot.fluxdoublee_Flux[0.002/4] Uncertainty in Flux (2)aW.m**-2stat.error;phot.fluxfloatJ/ApJS/217/26/table1Sample properties and observation parametersLCLC plotmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy identifiermeta.id;meta.maincharprimaryANameAlternative namemeta.idcharz[0.009/0.05] Redshift from NEDsrc.redshiftfloatDL[39/185.2] Luminosity distance (D_L_) (1)Mpcpos.distance;pos.heliocentricfloatAv[0.019/0.2] Galactic extinction (A_V_) (2)magphys.absorption.galfloatPA[45/180] Slit position angledegobs.paramfloatNobs[27/55] Total number of spectroscopic observationsmeta.numberintn_Nobs[ab] Includes observations out of campaign (3)meta.notecharSamp[1.6/2.8] Mean sampling interval (4)dtime.intervalfloatn_Samp[c] Sample limited to main campaign (3)meta.notecharAirM[1.05/1.58] Median airmassobs.airMassfloatS/N[49/121] Median S/N (5)stat.snrintNfNumber of flux measurements for this AGNmeta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharNEDSimbad column added by the CDSmeta.ref.urlchar_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.main