J/AZh/71/189ivo://CDS.VizieR/J/AZh/71/189CDSSergeev S.G.1999-10-11T09:09:20Z1999-10-11T09:09:06ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleispectroscopyThe nucleus spectra of the Seyfert galaxy NGC 4151 obtained in 1988-1991 were analyzed in order to study the profile variability of the Ha line resulting from ionizing continuum flux variations. At the time of this galaxy monitoring, the response of the integral flux of the Ha line was almost linear and the average profile shape did not change by more than 5%.1994AZh....71..189Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AZh/71/189CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AZh/71/189https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AZh/71/189http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AZh/71/189https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AZh/71/189https://vizier.iucaa.in/viz-bin/votable?-source=J/AZh/71/189http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AZh/71/189GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AZh/71/189/table2Light curves of continuum and H{alpha} linerecnoRecord number assigned by the VizieR team. Should Not be used for identification.intDateObservation datenullableTimeUniversal timehintJD[2447216/2448332] Julian date of observationddoubleFcontFlux in continuum at wavelengths 6563 {AA}1e-16W.m**-2.nm**-1floatF6563AFlux in H(alpha) for 6449-6695 {AA}1e-14W.m**-2floatSNSignal to noise ratio per pixel in continuumintJ/AZh/71/189/table3PhotometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intJD[2447183/2448473] Julian date of observationddoubleVmagV magnitudemagfloatFcontFlux in continuum at 6563 A0.1uW.m**-2.m**-1floatNotes[1/2] Notes (1)int