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<ri:Resource created="1997-12-09T23:09:00Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/ConeSearch/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/ConeSearch.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>X-ray of active galaxies and nuclei</title><shortName>VII/181</shortName><identifier>ivo://CDS.VizieR/VII/181</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Della Ceca R.</name></creator><creator><name>Palumbo G.G.C.</name></creator><creator><name>Persic M.</name></creator><creator><name>Boldt E.A.</name></creator><creator><name>de Zotti G.,Marshall E.E.</name></creator><date role="Updated">1997-12-09T22:09:14Z</date><date role="Created">1997-12-09T23:09:00Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>x-ray-sources</subject><subject>active-galactic-nuclei</subject><subject>seyfert-galaxies</subject><subject>quasars</subject><description>(no description available)</description><source format="bibcode">1990ApJS...72..471D</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/VII/181</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic 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Rms uncertainty on Flux0 or upper limit of error on Flux0 if n_e_Flux0='-' (in units of Flux0)</description><unit>mW.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>n_e_Flux0</name><description>[-] A '-' indicates an interval uncertainty on Flux0</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e(Flux0)l</name><description>[]? Error on Flux0 (lower limit)</description><unit>mW.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ref.</name><description>Number codes to references, explained in file "ref.num" (4)</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType" arraysize="16*">char</dataType></column><column><name>A-2</name><description>[]? A-2 flux measured in R15 counts</description><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>n_A-2</name><description>The flags "c" and "L" indicate contamination from a nearby bright X-ray source and low galactic latitude (|b|&lt;20 deg), respectively.</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e_A-2</name><description>[]? Rms uncertainty on A-2</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ObsTime</name><description>[]? Average observation time (in days of the year 1977) during the first six-month all-sky survey completed by the HEAO-1 spacecraft</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>VII/181/table4</name><description>Catalog for Seyfert 2 galaxies</description><column><name>l_Flux0</name><description>[~&lt;] Limit flag on Flux0</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>RA1950</name><description>Right ascension 1950</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE1950</name><description>Declination sign</description><ucd>pos.eq.dec;meta.main</ucd><flag>nullable</flag></column><column><name>Name</name><description>PG name (Schmidt and Green 1983). For other names see table6</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="12*">char</dataType></column><column><name>z</name><description>[]? Redshift (Schmidt and Green 1986)</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Bmag</name><description>[]? B magnitudes (Schmidt and Green 1983)</description><unit>mag</unit><ucd>phot.mag;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Instr</name><description>Instrument or experiment by which the measurement was taken. (1)</description><ucd>meta.id;instr</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>E1</name><description>[]? Lowest value of the spectral window (3)</description><unit>keV</unit><ucd>instr.bandwidth;stat.min</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>n_E1</name><description>A '-' indicates the spectral window</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>E2</name><description>[]? Highest value of the spectral window (E1_E2) when n_E = '-' (3)</description><unit>keV</unit><ucd>instr.bandwidth;stat.max</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>n_Flux</name><description>[*] Note (MED1.05 for flux MKN 421, A5SSI)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>l_Flux</name><description>[~&lt;] Limit flag on flux</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Flux</name><description>[]? Flux measured in the energy band E1-E2 or monochromatic at a given energy, according to column E1-E2</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>Flux2</name><description>[]? Higest value of flux interval when n_Flux = '-'</description><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>u_Flux</name><description>[)] Uncertainty flag on flux interval</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e_Flux</name><description>[]? Rms uncertainty on Flux</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>u_e_Flux</name><description>[)] Uncertainty flag on e_flux</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>x_Flux</name><description>Units in which the quantities reported in the two previous columns are measured. (2)</description><ucd>meta.unit</ucd><dataType xsi:type="vs:VOTableType" arraysize="9*">char</dataType></column><column><name>Flux0</name><description>[]? Flux from reference in column ref. If the flux in column E1 is monochromatic the physical units here will be mW/m2/Hz</description><unit>mW.m**-2</unit><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>n_Flux0</name><description>A '-' indicates an interval of flux</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Flux02</name><description>[]? Highest value of flux interval when n_Flux0= '-'</description><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>u_Flux0</name><description>[)] Uncertainty flag on flux interval</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e_Flux0</name><description>[]? Rms uncertainty on Flux0 or upper limit of error on Flux0 if n_e_Flux0='-' (in units of Flux0)</description><unit>mW.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>n_e_Flux0</name><description>[-] A '-' indicates an interval uncertainty on Flux0</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e(Flux0)l</name><description>[]? Error on Flux0 (lower limit)</description><unit>mW.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ref.</name><description>Number codes to references, explained in file "ref.num" (4)</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType" arraysize="16*">char</dataType></column><column><name>A-2</name><description>[]? A-2 flux measured in R15 counts</description><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>n_A-2</name><description>The flags "c" and "L" indicate contamination from a nearby bright X-ray source and low galactic latitude (|b|&lt;20 deg), respectively.</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e_A-2</name><description>[]? Rms uncertainty on A-2</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ObsTime</name><description>[]? Average observation time (in days of the year 1977) during the first six-month all-sky survey completed by the HEAO-1 spacecraft</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>VII/181/table5</name><description>Catalog for BL Lacertae objects</description><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>RA1950</name><description>Right ascension 1950</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE1950</name><description>Declination sign</description><ucd>pos.eq.dec;meta.main</ucd><flag>nullable</flag></column><column><name>Name</name><description>PG name (Schmidt and Green 1983). For other names see table6</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="12*">char</dataType></column><column><name>z</name><description>[]? Redshift (Schmidt and Green 1986)</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Bmag</name><description>[]? B magnitudes (Schmidt and Green 1983)</description><unit>mag</unit><ucd>phot.mag;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Instr</name><description>Instrument or experiment by which the measurement was taken. (1)</description><ucd>meta.id;instr</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>E1</name><description>[]? Lowest value of the spectral window (3)</description><unit>keV</unit><ucd>instr.bandwidth;stat.min</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>n_E1</name><description>A '-' indicates the spectral window</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>E2</name><description>[]? Highest value of the spectral window (E1_E2) when n_E = '-' (3)</description><unit>keV</unit><ucd>instr.bandwidth;stat.max</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>n_Flux</name><description>[*] Note (MED1.05 for flux MKN 421, A5SSI)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>l_Flux</name><description>[~&lt;] Limit flag on flux</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Flux</name><description>[]? Flux measured in the energy band E1-E2 or monochromatic at a given energy, according to column E1-E2</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>Flux2</name><description>[]? Higest value of flux interval when n_Flux = '-'</description><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>u_Flux</name><description>[)] Uncertainty flag on flux interval</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e_Flux</name><description>[]? Rms uncertainty on Flux</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>u_e_Flux</name><description>[)] Uncertainty flag on e_flux</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>x_Flux</name><description>Units in which the quantities reported in the two previous columns are measured. (2)</description><ucd>meta.unit</ucd><dataType xsi:type="vs:VOTableType" arraysize="9*">char</dataType></column><column><name>l_Flux0</name><description>[~&lt;] Limit flag on Flux0</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Flux0</name><description>[]? Flux from reference in column ref. If the flux in column E1 is monochromatic the physical units here will be mW/m2/Hz</description><unit>mW.m**-2</unit><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>n_Flux0</name><description>A '-' indicates an interval of flux</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Flux02</name><description>[]? Highest value of flux interval when n_Flux0= '-'</description><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>u_Flux0</name><description>[)] Uncertainty flag on flux interval</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e_Flux0</name><description>[]? Rms uncertainty on Flux0 or upper limit of error on Flux0 if n_e_Flux0='-' (in units of Flux0)</description><unit>mW.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>n_e_Flux0</name><description>[-] A '-' indicates an interval uncertainty on Flux0</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e(Flux0)l</name><description>[]? Error on Flux0 (lower limit)</description><unit>mW.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ref.</name><description>Number codes to references, explained in file "ref.num" (4)</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType" arraysize="16*">char</dataType></column><column><name>A-2</name><description>[]? A-2 flux measured in R15 counts</description><ucd>phot.flux;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>n_A-2</name><description>The flags "c" and "L" indicate contamination from a nearby bright X-ray source and low galactic latitude (|b|&lt;20 deg), respectively.</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>e_A-2</name><description>[]? Rms uncertainty on A-2</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ObsTime</name><description>[]? Average observation time (in days of the year 1977) during the first six-month all-sky survey completed by the HEAO-1 spacecraft</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>VII/181/table6</name><description>Other names of PG Quasars</description><column><name>Note</name><description>See note (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>RA1950</name><description>Right ascension 1950</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE1950</name><description>Declination sign</description><ucd>pos.eq.dec;meta.main</ucd><flag>nullable</flag></column><column><name>Opt.</name><description>Names from optical catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>Radio</name><description>Names from radio catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="12*">char</dataType></column><column><name>X-ray</name><description>Names from X-ray catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>IRAs</name><description>IRAS name from positional coincidence</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="10*">char</dataType></column></table><table><name>VII/181/table7</name><description>Other names of Seyfert 1 and 1.5 galaxies</description><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Note</name><description>See note (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>RA1950</name><description>Right ascension 1950</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE1950</name><description>Declination sign</description><ucd>pos.eq.dec;meta.main</ucd><flag>nullable</flag></column><column><name>Opt.</name><description>Names from optical catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>Radio</name><description>Names from radio catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="12*">char</dataType></column><column><name>X-ray</name><description>Names from X-ray catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>IRAs</name><description>IRAS name from positional coincidence</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="10*">char</dataType></column></table><table><name>VII/181/table8</name><description>Other names of Seyfert 2 galaxies</description><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Note</name><description>See note (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>RA1950</name><description>Right ascension 1950</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE1950</name><description>Declination sign</description><ucd>pos.eq.dec;meta.main</ucd><flag>nullable</flag></column><column><name>Opt.</name><description>Names from optical catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>Radio</name><description>Names from radio catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="12*">char</dataType></column><column><name>X-ray</name><description>Names from X-ray catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>IRAs</name><description>IRAS name from positional coincidence</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="10*">char</dataType></column></table><table><name>VII/181/table9</name><description>Other names of BL Lac objects</description><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Note</name><description>See note (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>RA1950</name><description>Right ascension 1950</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE1950</name><description>Declination sign</description><ucd>pos.eq.dec;meta.main</ucd><flag>nullable</flag></column><column><name>Opt.</name><description>Names from optical catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>Radio</name><description>Names from radio catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="12*">char</dataType></column><column><name>X-ray</name><description>Names from X-ray catalogues</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>IRAs</name><description>IRAS name from positional coincidence</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="10*">char</dataType></column></table></schema></tableset></ri:Resource>