<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><oai:OAI-PMH xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" xmlns:oai="http://www.openarchives.org/OAI/2.0/" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:stc="http://www.ivoa.net/xml/STC/stc-v1.30.xsd" xmlns:vg="http://www.ivoa.net/xml/VORegistry/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xlink="http://www.w3.org/1999/xlink" 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-v1.0.xsd http://www.openarchives.org/OAI/2.0/ http://vo.ari.uni-heidelberg.de/docs/schemata/OAI-PMH.xsd http://www.ivoa.net/xml/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface-v1.0.xsd http://www.ivoa.net/xml/STC/stc-v1.30.xsd http://vo.ari.uni-heidelberg.de/docs/schemata/stc-v1.30.xsd http://www.ivoa.net/xml/VORegistry/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VORegistry-v1.0.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource-v1.0.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService-v1.1.xsd http://www.w3.org/1999/xlink http://vo.ari.uni-heidelberg.de/docs/schemata/xlink.xsd"><oai:responseDate>2026-05-25T13:37:57.541944</oai:responseDate><oai:metadata><ri:Resource created="2015-08-12T01:02:03" status="active" updated="2016-12-21T12:42:39" xsi:type="vs:CatalogService"><title>1WHSP blazar candidates catalog</title><shortName>whsp cone</shortName><identifier>ivo://bsdc.icranet.org/whsp/q/cone</identifier><curation><publisher>BSDC</publisher><creator><name>Arsioli B., Fraga B., Giommi P., et al.</name></creator><date role="updated">2016-12-21T12:42:39</date><contact><name>Carlos H. Brandt</name><address>Piazza della Repubblica 10, 65122, Pescara, Italia</address><email>carlos.henrique.brandt@gmail.com</email><telephone>+393248404669</telephone></contact></curation><content><subject>Catalogs</subject><subject>active galaxies</subject><subject>BL Lacertae</subject><subject>non-thermal radiation</subject><subject>blazars</subject><description> The catalog 1WHSP is the result of a multi-frequency selection for
blazars like SED, further filtered using IR-radio and IR-X-ray
flux-ratios. The sample assembled contains almost 992 sources of HSP
blazars, of which 425 are previously known blazars, 151 new
identifications and 416 blazar candidates. On the very high energy
trend, 299 are confirmed GeV gamma-ray photons emitters and 36 have
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blazars like SED, further filtered using IR-radio and IR-X-ray
flux-ratios. The sample assembled contains almost 992 sources of HSP
blazars, of which 425 are previously known blazars, 151 new
identifications and 416 blazar candidates. On the very high energy
trend, 299 are confirmed GeV gamma-ray photons emitters and 36 have
already been detected in the TeV band.</description><table type="output"><name>output</name><description> The catalog 1WHSP is the result of a multi-frequency selection for
blazars like SED, further filtered using IR-radio and IR-X-ray
flux-ratios. The sample assembled contains almost 992 sources of HSP
blazars, of which 425 are previously known blazars, 151 new
identifications and 416 blazar candidates. On the very high energy
trend, 299 are confirmed GeV gamma-ray photons emitters and 36 have
already been detected in the TeV band.</description><column><name>asdc_link</name><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>id</name><description>Internal id</description><ucd>meta</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType></column><column><name>name</name><description>Designation</description><ucd>meta.id;meta.main</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType></column><column><name>raj2000</name><description>Right ascension</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">double</dataType></column><column><name>decj2000</name><description>Declination</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">double</dataType></column><column><name>wise_mag</name><description>WISE magnitude</description><unit>mag</unit><ucd>phot.mag;em.IR</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>radio_flux</name><description>Radio flux density, NVSS or FIRST</description><unit>mJy</unit><ucd>phot.flux;em.radio</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>z</name><description>redshift</description><ucd>src.redshift</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>z_flag</name><description>redshift quality flag</description><ucd>meta.code</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType></column><column><name>nu_peak</name><description>Synchroton frequency peak</description><unit>log(Hz)</unit><ucd>em.freq</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>nu_flag</name><description>Frequency peak measurement quality flag</description><ucd>meta.code</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType></column><column><name>flux_peak</name><description>Flux peak</description><unit>log(erg.cm**-2.s**-1)</unit><ucd>em.freq</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>blazar_type</name><description>Blazar extended information flag</description><ucd>meta.code</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType></column><column><name>fermi_gr_slope</name><description>Gamma-ray slope from Fermi</description><ucd>obs.param</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>fermi_gr_slope_error</name><description>Error on gamma-ray slope from Fermi</description><ucd>stat.error;obs.param</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>tev_fom</name><description>TeV figure-of-merit estimated flux (E&gt;50GeV)</description><unit>unknown</unit><ucd>obs.param</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>bzcat_name</name><description>BZcat designation if any</description><ucd>meta.id.cross</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>fermi_name</name><description>Fermi designation if any</description><ucd>meta.id.assoc</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table><table><name>whsp.main</name><description> The catalog 1WHSP is the result of a multi-frequency selection for
blazars like SED, further filtered using IR-radio and IR-X-ray
flux-ratios. The sample assembled contains almost 992 sources of HSP
blazars, of which 425 are previously known blazars, 151 new
identifications and 416 blazar candidates. On the very high energy
trend, 299 are confirmed GeV gamma-ray photons emitters and 36 have
already been detected in the TeV band.</description><column><name>id</name><description>Internal id</description><ucd>meta</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType><flag>indexed</flag><flag>primary</flag></column><column><name>name</name><description>Designation</description><ucd>meta.id;meta.main</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType></column><column><name>raj2000</name><description>Right ascension</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag></column><column><name>decj2000</name><description>Declination</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag></column><column><name>wise_mag</name><description>WISE magnitude</description><unit>mag</unit><ucd>phot.mag;em.IR</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>radio_flux</name><description>Radio flux density, NVSS or FIRST</description><unit>mJy</unit><ucd>phot.flux;em.radio</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>z</name><description>redshift</description><ucd>src.redshift</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>z_flag</name><description>redshift quality flag</description><ucd>meta.code</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType></column><column><name>asdc_link</name><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>nu_peak</name><description>Synchroton frequency peak</description><unit>log(Hz)</unit><ucd>em.freq</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>nu_flag</name><description>Frequency peak measurement quality flag</description><ucd>meta.code</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType></column><column><name>flux_peak</name><description>Flux peak</description><unit>log(erg.cm**-2.s**-1)</unit><ucd>em.freq</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>blazar_type</name><description>Blazar extended information flag</description><ucd>meta.code</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">int</dataType></column><column><name>fermi_gr_slope</name><description>Gamma-ray slope from Fermi</description><ucd>obs.param</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>fermi_gr_slope_error</name><description>Error on gamma-ray slope from Fermi</description><ucd>stat.error;obs.param</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>tev_fom</name><description>TeV figure-of-merit estimated flux (E&gt;50GeV)</description><unit>unknown</unit><ucd>obs.param</ucd><dataType arraysize="1" xsi:type="vs:VOTableType">float</dataType></column><column><name>bzcat_name</name><description>BZcat designation if any</description><ucd>meta.id.cross</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>fermi_name</name><description>Fermi designation if any</description><ucd>meta.id.assoc</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource></oai:metadata></oai:OAI-PMH>