J/MNRAS/509/2377ivo://CDS.VizieR/J/MNRAS/509/2377doi:10.26093/cds/vizier.75092377CDSDurre M.Mould J.2024-08-21T20:18:59Z2021-11-24T09:25:04ZCDS support team

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

cds-question@unistra.frseyfert-galaxiesgalaxiesspectroscopyinfrared-sourcescatalogsWe present a near-infrared spectroscopic survey of narrow-line Seyfert 1 galaxies in the southern hemisphere (using the SOFI instrument on the ESO-NTT telescope), sampled from optical surveys. We examine the kinematics of the broad-line region, probed by the emission line width of hydrogen (Paschen{alpha} and H{beta}). We observed 57 objects, of which we could firmly measure Paschen{alpha} in 49 cases. We find that a single Lorentzian fit (preferred on theoretical grounds) is preferred over multi-component Gaussian fits to the line profiles; a lack of narrow-line region emission, overwhelmed by the pole-on view of the broad line region (BLR) light, supports this. We recompute the catalog black hole (BH) mass estimates, using the values of FWHM and luminosity of H{beta}, both from catalog values and re-fitted Lorentzian values. We find a relationship slope greater than unity compared to the catalog values. We ascribe this to contamination by galactic light or difficulties with line flux measurements. However, the comparison of masses computed by the fitted Lorentzian and Gaussian measurements show a slope close to unity. Comparing the BH masses estimated from both Paschen{alpha} and H{beta}, the line widths and fluxes shows deviations from expected; in general, however, the computed BH masses are comparable. We posit a scenario where an intermixture of dusty and dust-free clouds (or alternately a structured atmosphere) differentially absorbs the line radiation of the BLR, due to dust absorption and hydrogen bound-free absorption.2022MNRAS.509.2377Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/509/2377CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/615/A13 : Narrow line Seyfert 1 (NLS1) galaxies spectra (Schmidt+, 2018)J/A+A/615/A167 : Catalog of NLS1s galaxies in 6dFGS survey (Chen+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/509/2377https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/509/2377http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/509/2377https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/509/2377https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/509/2377http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/509/2377GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/509/2377/tablea1 (Observation Log (08/08/2022 version))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/509/2377/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/509/2377/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/509/2377/tablea1?GETtext/xml+votable180.050000true25.38546-15.467060.005555555555555556Cone search capability for table J/MNRAS/509/2377/list (List of fits spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/509/2377/list?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/509/2377/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/509/2377/list?GETtext/xml+votable180.050000true25.38546-15.467060.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/MNRAS/509/23776/17359 17427 17627 18592 21038 22632 22740 22743 23064 23128 29013 29346 29774 29906 30795 30873 30963 33623 33662 34220 34672 34909 35001 35180 35534 35606 35609 35837 36010 36116 36183 36316 36591 36775 39118 42999 44063-44064 44448 44924 45449 45500 46143 46299 46662 46687 47009 47162 47382 47510 47514 47522 48188 48213 48282 48370 48826https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/509/2377?format=asciiInfrareddefaultJ/MNRAS/509/2377/tablea1Observation Log (08/08/2022 version)SimbadNameSimbad column added by the CDSmeta.idcharnullableCyclesObservations cycles (each of 600s)meta.idintStd-StarTelluric/calibration star IDmeta.idcharObs.DateObservation datedtime.epoch;obsintS/NSpectrum signal to noise estimatestat.snrfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget IDmeta.id;meta.maincharANameAlternate IDmeta.idcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainKmagK magnitudemagphot.mag;em.IR.KfloatzRedshiftsrc.redshiftfloatLdistLuminosity distanceMpcpos.distanceintE(B-V)MW B-V extinctionmagphot.color.excessfloatJ/MNRAS/509/2377/tablea2Pa{alpha} and H{beta} emission line measurements, extinctions and black hole mass estimatesHbFWHMFWHM H{beta}nmspect.line.widthfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget IDmeta.id;meta.mainchare_PaFluxFlux uncertainty Pa{alpha} (in 10^-15^erg/cm^2^/s unit)1e-18W.m**-2stat.errorfloatPaFWHMFWHM Pa{alpha}nmspect.line.widthfloate_PaFWHMFWHM uncertainty Pa{alpha}nmspect.line.widthfloatlogLPaLog luminosity Pa{alpha} (erg/s)log(1e-07W)phys.luminosityfloate_logLPaLog luminosity uncertainty Pa{alpha} (erg/s)log(1e-07W)stat.errorfloatPaVFWHM Pa{alpha} velocitykm/sspect.line.widthfloate_PaVFWHM uncertainty Pa{alpha} velocitykm/sspect.line.widthfloatlogMBHPaLog mass of central black hole from Pa{alpha}log(solMass)phys.massfloate_logMBHPaLog mass of central black hole from Pa{alpha} uncertaintylog(solMass)stat.errorfloatPaE(B-V)Extinction derived from Pa{alpha}/H{beta}magphys.absorptionfloate_PaE(B-V)Extinction derived from Pa{alpha}/H{beta} uncertaintymagphys.absorptionfloatHbFluxFlux H{beta} (in 10^-15^erg/cm^2^/s unit)1e-18W.m**-2phot.flux;em.line.Hbetafloate_HbFluxFlux uncertainty H{beta} (in 10^-15^erg/cm^2^/s unit)1e-18W.m**-2stat.errorfloate_HbFWHMFWHM uncertainty H{beta}nmspect.line.widthfloatlogLHbLog luminosity H{beta} (erg/s)log(1e-07W)phys.luminosityfloate_logLHbLog luminosity uncertainty H{beta} (erg/s)log(1e-07W)stat.errorfloatHbVFWHM H{beta} velocitykm/sspect.line.widthfloate_HbVFWHM uncertainty H{beta} velocitykm/sspect.line.widthfloatlogMBHHbLog mass of central black hole from H{beta}log(solMass)phys.massfloate_logMBHHbLog mass of central black hole from H{beta} uncertaintylog(solMass)stat.errorfloatHbE(B-V)? Extinction derived from H{alpha}/H{beta}magphys.absorptionfloatnullablee_HbE(B-V)? Extinction derived from H{alpha}/H{beta} uncertaintymagphys.absorptionfloatnullablePaFluxFlux Pa{alpha} (in 10^-15^erg/cm^2^/s unit)1e-18W.m**-2phot.fluxfloatJ/MNRAS/509/2377/listList of fits spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget IDmeta.id;meta.maincharRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintObs.dateObservation datestime.epoch;obsnullablebWAVELower value of wavelength interval0.1nmem.wlfloatBWAVEUpper value of wavelength interval0.1nmem.wlfloatdWAVEWavelength resolution0.1nmspect.resolutiondoublesizeSize of FITS fileKibytephys.size;meta.fitsintspShow the spectrummeta.ref.urlcharFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar