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<ri:Resource created="2014-12-17T08:56:59Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" 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/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>Multiwavelength observations of Mrk 501 in 2008</title><shortName>J/A+A/573/A50</shortName><identifier>ivo://CDS.VizieR/J/A+A/573/A50</identifier><altIdentifier>doi:10.26093/cds/vizier.35730050</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Aleksic J.</name></creator><creator><name>Ansoldi S.</name></creator><creator><name>Antonelli 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A.</name></creator><creator><name>Zitzer B.</name></creator><creator><name>(The VERITAS collaboration),Villata M.</name></creator><creator><name>Raiteri C.M.</name></creator><creator><name>Ajello M.</name></creator><creator><name>Perri M.</name></creator><creator><name>Aller H.D.</name></creator><creator><name>Aller M.F.,Larionov V.M.</name></creator><creator><name>Efimova N.V.</name></creator><creator><name>Konstantinova T.S.</name></creator><creator><name>Kopatskaya E.N.</name></creator><creator><name>Chen W.P.,Koptelova E.</name></creator><creator><name>Hsiao H.Y.</name></creator><creator><name>Kurtanidze O.M.</name></creator><creator><name>Nikolashvili M.G.,Kimeridze G.N.</name></creator><creator><name>Jordan B.</name></creator><creator><name>Leto P.</name></creator><creator><name>Buemi C.S.</name></creator><creator><name>Trigilio C.</name></creator><creator><name>Umana G.,Lahteenmaki A.</name></creator><creator><name>Nieppola E.</name></creator><creator><name>Tornikoski M.</name></creator><creator><name>Sainio J.</name></creator><creator><name>Kadenius V.,Giroletti M.</name></creator><creator><name>Cesarini A.</name></creator><creator><name>Fuhrmann L.</name></creator><creator><name>Kovalev Yu.A.</name></creator><creator><name>Kovalev Y.Y.</name></creator><date role="Updated">2017-06-27T06:38:37Z</date><date role="Created">2014-12-17T08:56:59Z</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>active-galactic-nuclei</subject><subject>gamma-ray-astronomy</subject><subject>spectral-energy-distribution</subject><description>Blazars are variable sources on various timescales over a broad energy range spanning from radio to very high energy (&gt;100GeV, hereafter VHE). Mrk 501 is one of the brightest blazars at TeV energies and has been extensively studied since its first VHE detection in 1996. However, most of the {gamma}-ray studies performed on Mrk 501 during the past years relate to flaring activity, when the source detection and characterization with the available {gamma}-ray instrumentation was easier to perform. Our goal is to characterize in detail the source {gamma}-ray emission, together with the radio-to-X-ray emission, during the non-flaring (low) activity, which is less often studied than the occasional flaring (high) activity. We organized a multiwavelength (MW) campaign on Mrk 501 between March and May 2008. This multi-instrument effort included the most sensitive VHE {gamma}-ray instruments in the northern hemisphere, namely the imaging atmospheric Cherenkov telescopesMAGIC and VERITAS, as well as Swift, RXTE, the F-GAMMA, GASP-WEBT, and other collaborations and instruments. This provided extensive energy and temporal coverage of Mrk 501 throughout the entire campaign.</description><source format="bibcode">2015A&amp;A...573A..50A</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/573/A50</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/495/691">J/A+A/495/691 : Multifrequency catalogue of blazars Roma-BZCAT (Massaro+ 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/709/1407">J/ApJ/709/1407 : SED of the Fermi blazars (Li+, 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/716/30">J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/539/A149">J/A+A/539/A149 : Multiwavelength view of blazar PKS 2155-304 (Abramowski+ 2012)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/545/A68">J/A+A/545/A68 : Optical spectrum of the blazar PKS 0447-439 (Fumagalli+, 2012)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/559/A75">J/A+A/559/A75 : 43GHz observation of the blazar Mrk 421 (Blasi+, 2013)</relatedResource></relationship></content><rights>https://cds.unistra.fr/vizier-org/licences_vizier.html</rights><capability><interface xsi:type="vr:WebBrowser"><accessURL use="full">https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/573/A50</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/573/A50</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/573/A50</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/573/A50</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/573/A50</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/573/A50</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://tapvizier.cds.unistra.fr/TAPVizieR/tap</accessURL></interface></capability><coverage><footprint ivo-id="ivo://ivoa.net/std/moc"/><waveband>Gamma-ray</waveband></coverage><tableset><schema><name>default</name><table><name>J/A+A/573/A50/sed_1</name><description>Spectral energy distributions for Mrk 501 in the period MJD 54545-54560 (2008-03-20/2008-04-03)</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>nu</name><description>[9.e8/1.e+27] Frequency</description><unit>Hz</unit><ucd>em.freq</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>nuFnu</name><description>Energy Flux (in erg/cm^2^/s)</description><unit>mW.m**-2</unit><ucd>phot.flux</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_nuFnu</name><description>1-{sigma} statistical uncertainty in energy flux (in erg/cm^2^/s)</description><unit>mW.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column></table><table><name>J/A+A/573/A50/sed_2</name><description>Spectral energy distributions for Mrk 501 in the period MJD 54561-54574 (2008-04-05/2008-04-17)</description><column><name>nu</name><description>[9.e8/1.e+27] Frequency</description><unit>Hz</unit><ucd>em.freq</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>nuFnu</name><description>Energy Flux (in erg/cm^2^/s)</description><unit>mW.m**-2</unit><ucd>phot.flux</ucd><dataType xsi:type="vs:VOTableType">double</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>e_nuFnu</name><description>1-{sigma} statistical uncertainty in energy flux (in erg/cm^2^/s)</description><unit>mW.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column></table><table><name>J/A+A/573/A50/sed_3</name><description>Spectral energy distributions for Mrk 501 in the period MJD 54579-54604 (2008-04-23/2008-05-19)</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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