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<ri:Resource created="2006-06-07T09:53:16Z" 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>Optical identification of ROSAT-FSC sources</title><shortName>J/A+A/449/425</shortName><identifier>ivo://CDS.VizieR/J/A+A/449/425</identifier><altIdentifier>doi:10.26093/cds/vizier.34490425</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Mickaelian A.M.</name></creator><creator><name>Hovhannisyan L.R.</name></creator><creator><name>Engels D.</name></creator><creator><name>Hagen H.-J.</name></creator><creator><name>Voges W.</name></creator><date role="Updated">2006-06-07T09:56:35Z</date><date role="Created">2006-06-07T09:53:16Z</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>astronomical-object-identification</subject><subject>visible-astronomy</subject><subject>photographic-photometry</subject><description>The Byurakan/Hamburg/ROSAT Catalogue (BHRC) of the optical identifications of X-ray sources is presented. The BHRC includes all 2791 sources from the ROSAT-FSC (&lt;IX/29&gt;) with |b|&gt;30, DEC&gt;0 and ROSAT count rate CR&gt;0.04cts/s. The optical identifications were carried out by means of the Hamburg Quasar Survey (HQS) digitized spectroscopic plates, the DSS1 and DSS2 (blue, red, and IR) images, and other available data. We managed to identify 97% of sources (2696 sources) that are associated with 3202 optical objects. 2248 X-ray sources have a single optical counterpart, 144 have a double or multiple optical counterpart (binaries, galaxy groups etc.), and 304 have ambiguous identifications. The table gives all available multiwavelength data for the identified sources.</description><source format="bibcode">2006A&amp;A...449..425M</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/449/425</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>IsServedBy</relationshipType><relatedResource>Conesearch service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/IX/29">IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/284">I/284 : The USNO-B1.0 Catalog (Monet+ 2003)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/127/145">J/A+AS/127/145 : Hamburg/RASS Cat. of optical ident. 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South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/449/425/table1?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>0.030125</ra><dec>29.9502778</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>5/1369 2279 2352 2360 4565 4803 6632 6990 7098 6/1 3 14 17 29 32 34 43 48-49 57 61 91 101 111 115 132 134-137 139 141-142 149 151 158 164 166 169-170 186 196-197 199 201 205 208 216 225 232 234 238-239 241 244 246-247 252-253 255 257-258 260 263 270 293 299 306 394 424 428 514 516 521 529 531 533 538 548 550 555 561 569 571 613 619 624-625 627 643 645 649 655 657 659 685 701 708 710 716 721 725 728 736 742 745 747-749 753 756 770 777 780 782 814 906 2053 2069 2071 2074 2081 2094 2103-2104 2118 2139 2155 2182-2183 2186 2188 2194 2197 2208 2214-2215 2219 2248 4113-4114 4118 4120 4124 4146 4155 4158 4164 4166 4168 4177 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19047 19051 19053 19061 19064 19066 19070 19095 19097 19099 19110 19124 19127 19139 19144-19145 19150 19162 19169-19170 19174 19176 19179 19190 19193 19198 19204-19205 19210 19217-19220 19226 19228 19239 19242-19243 19245 19257-19259 19265 19269 19276 19280 19283 19285 19296 19298 19302 19306 19314 19318 19321 19331 19341 19343 19354 19363 19376-19377 19399 19401 19423 19428 19432 19442 19446 19454 19456 19459-19461 19467 19474-19475 19486-19487 19495 19501 19513 19525-19527 19533-19536 19543 19546-19547 19555 19565-19567 19569 19571 19573 19579-19580 19592-19593 19598 19603 19606 19610 19612 19619 19640 19645 19652-19653 19667 19669 19675-19676 19679-19682 19695-19696 19698 19700 19722 19724 19727 19729-19730 19732 19737 19739-19741 19751 19760-19761 19768-19769 19774-19775 19782 19805 19813 19826 19836 19839 19842-19843 19848 19851 19859 19872 19878-19879 19882 19886-19887 19894 19905 19912 19916 19923 19930 19934-19935 19938-19939 19943 19947 19949 19955 19959 19967 19970 19977-19978 19993 20008 20019-20020 20025-20027 20055 20061 20072-20073 20077 20082-20084 20090 20092 20099 20106 20108 20110 20112 20117-20118 20120 20123-20124 20131 20147 20158 20200 20202 20210 20226-20227 20247 20251 20253-20254 20257 20272 20275-20276 20287 20290 20310 20315 20317 20325 20327 20333 20341 20361-20362 20370 20378 23127 23135 23194 23196 23209 23211 23214 23222 23225-23226 23243 23248 23250 23253 23272 23284 23291 23293 23330 23337 23424 23426 23432 23438-23439 23466-23468 23480 25943 25948-25949 25965 25971 25973 26014 26022 26030 26034 26036 26038-26039 26043 26046 26048-26049 26054 26071 26086 26088-26089 26093 26097 26100 26102-26103 26105-26106 26111 26214 26221-26222 26227-26228 26233 26236 26239 26268-26270 26283 26292-26293 26298 26303-26304 26306-26307 26310 26313 26316 26318-26319 26322 26329 26334 26337 26350 26357-26358 26363 26367 26376 26379 26382 26385 26391-26392 26394 26406 26420 26427 26429-26430 26432 26437 26440 26443 26445 26449 26451 26453 26460 26463 26466 26469-26470 26481 26483 26485-26486 26488 26490 26495 26508-26509 26514 26534 26540 26542 26544 26546 26555 26562-26563 26565-26566 26569 26585 26593-26595 26604 26608-26609 26614 26620 26974-26975 26988 26996 27003-27006 27031 27037 27060 27076-27077 27079-27081 27087-27088 27092 27102 27115 27117 27120 27130 27228 27230 27243 27250 27263 27309 27311 27314 27316 27337-27338 27350 27355 27360-27361 27368-27369 27372-27373 27377-27378 27386 27389 27402 27414 27421 27428 27430 27435-27436 27440-27442 27466-27467 27469 27477 27489 27493 27495 27504-27506 27510 27522-27524 27538 27541-27543 27556 27561 27564 27566 27570 27572 27577 27583 27599 27602 27605 27607 27614 27624 27632 27634 27640 27643 27650 27654 27657 27659 27661-27662 27666 27670-27672 27674 27676 27679 27685-27686 27688 27699 27703 27705-27706 27711-27713 27716 27719 27722 27725 27727 27732 27736 27740 27742-27743 27745 27749 27765 27769 27777 27780 27794 27800 27803 27817 27822 27825 27828 27831 27840 27848 27851 27856 27862 27872 27874 27877 27879 27886 27895 27902 27908 27910 27923 27949 27951-27952 27955 27964-27966 27968 27971-27972 27982-27984 27986 27990 27994-27995 28005 28008-28009 28011 28015 28022 28024 28026 28031 28035 28049-28050 28058 28062-28064 28072 28076 28079 28091 28103 28113 28115 28118 28125 28130 28133 28135 28141 28144 28156 28158 28167 28169 28181 28188 28192 28196 28198 28201-28202 28213-28214 28218 28221-28222 28227-28229 28239 28244 28254 28258 28263 28268 28270 28272 28286 28290 28292 28302 28310 28318-28319 28321 28330 28339 28343 28345 28350-28351 28358-28360 28362 28364-28365 28376-28378 28384 28396-28397 28399 28401 28406 28410 28413-28414 28418 28423 28434 28442 28446-28448 28450 28455 28459 28462 28465 28469 28487 28489-28490 28494 28498 28501 28504 28506 28509 28518-28519 28524 28529 28532 28538 28554-28556 28563-28565 28577 28585-28586 28599 28610-28611 28613 28619-28620 28622 28625 28632 28634 28643 28646 28661 28663 28667 31325 31327 31338 31344 31349-31350 31357 31388 31397-31399 31407-31409 31413-31415 31417 31423 31436 31455 31458-31459 31461 31465 31475 31477 31481 31484 31515 31527-31528 31530 31534-31537 31541 31547 31586 31592-31593 31598 31606 31611 31614 31621 31628 31634-31635 31640 31649 31656 31660 31664 31666 31682 31690 31692 31704 31707 31728 31730-31731 31738-31740 31742 32299 32390 32415 32422 32431 32436 32451 32484 32488 32491 32493 32497 32501 32680</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/449/425?format=ascii</footprint><waveband>X-ray</waveband><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/A+A/449/425/table1</name><description>A catalog of Hamburg/ROSAT-FSC identifications for {delta}&gt;0, |b|&gt;30 and X-ray counts&gt;0.04ct/s: 3202 objects for 2696 ROSAT sources.</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>1RXS</name><description>ROSAT name (Cat. IX/29)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="16*">char</dataType></column><column><name>m_1RXS</name><description>[a-e] Optical counterpart component</description><ucd>meta.code.multip</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>ePos</name><description>ROSAT positional error</description><unit>arcsec</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>CR</name><description>ROSAT count rate</description><unit>ct/s</unit><ucd>phot.count;em.X-ray</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_CR</name><description>? ROSAT count rate error</description><unit>ct/s</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>HR1</name><description>? ROSAT hardness ratio 1 (0.1-0.4,0.5/2.0keV)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_HR1</name><description>? ROSAT hardness ratio 1 error</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>HR2</name><description>? ROSAT hardness ratio 2 (0.5-0.9,0.9-2.0 keV)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_HR2</name><description>? ROSAT hardness ratio 2 error</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>RAJ2000</name><description>DSS2 right ascension (J2000)</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>DSS2 declination (J2000)</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>Opt-X</name><description>Distance between optical and X-ray positions</description><unit>arcsec</unit><ucd>pos.angDistance</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>O-Xr</name><description>Relative distance optical/X-ray (Opt-X/ePos)</description><ucd>pos.angDistance;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>OmagM</name><description>? MAPS O magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>(O-E)M</name><description>? MAPS O-E colour index</description><unit>mag</unit><ucd>phot.color;em.opt.B;em.opt.R</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>pm</name><description>? USNO-B1.0 total proper motion</description><unit>mas/yr</unit><ucd>pos.pm</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>Omag</name><description>? USNO-B1.0 O magnitude (mean of DSS1 blue and DSS2 blue)</description><unit>mag</unit><ucd>phot.mag;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Emag</name><description>? USNO-B1.0 E magnitude (mean of DSS1 red and DSS2 red)</description><unit>mag</unit><ucd>phot.mag;em.opt.R</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>O-E</name><description>? USNO-B1.0 O-E colour (mean of DSS1 O-E and DSS2 O-E)</description><unit>mag</unit><ucd>phot.color;em.opt.B;em.opt.R</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Imag</name><description>? USNO-B1.0 I magnitude (DSS2 IR)</description><unit>mag</unit><ucd>phot.mag;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Dmag</name><description>? USNO-B1.0 magnitude difference between DSS2 and DSS1 (mean of blue and red)</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Class</name><description>Classification of the objects (1)</description><ucd>src.class</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>Com</name><description>Comments on the objects (2)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="19*">char</dataType></column><column><name>OptType</name><description>Associations with known optical objects: types (3)</description><ucd>src.class</ucd><dataType xsi:type="vs:VOTableType" arraysize="17*">char</dataType></column><column><name>ONames</name><description>Optical associations: names of the objects</description><ucd>meta.id.cross</ucd><dataType xsi:type="vs:VOTableType" arraysize="37*">char</dataType></column><column><name>OdistO</name><description>? Optical associations: distance between the catalog and DSS2 red (our) positions</description><unit>arcsec</unit><ucd>pos.angDistance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>OdistX</name><description>? Optical associations: distance between the catalog and ROSAT positions</description><unit>arcsec</unit><ucd>pos.angDistance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Type</name><description>Optical associations: classification</description><ucd>src.class</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>mag</name><description>? Optical associations: catalog magnitudes (typically B magnitude)</description><unit>mag</unit><ucd>phot.mag;em.opt</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>n_mag</name><description>[gR] Band in not B magnitude</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>z</name><description>? Optical associations: redshift</description><ucd>src.redshift</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>Aband</name><description>Non-optical associations: wavelength domain (radio, IR, X-ray)</description><ucd>instr.bandpass</ucd><dataType xsi:type="vs:VOTableType" arraysize="12*">char</dataType></column><column><name>ANames</name><description>Non-optical associations: names of sources</description><ucd>meta.id.cross</ucd><dataType xsi:type="vs:VOTableType" arraysize="43*">char</dataType></column><column><name>AdistO</name><description>? Non-optical associations: distance between the source and DSS2 red (our) positions</description><unit>arcsec</unit><ucd>pos.angDistance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>AdistX</name><description>? Non-optical associations: distance between the source and ROSAT positions</description><unit>arcsec</unit><ucd>pos.angDistance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>USNO-B</name><description>Display the details from the USNO-B1.0 catalog (I/284)</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column></table></schema></tableset></ri:Resource>