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<ri:Resource created="2019-02-26T13:35:25Z" 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>NVSS and FIRST variable sources</title><shortName>J/other/A+C/25.1</shortName><identifier>ivo://CDS.VizieR/J/other/A+C/25.176</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Abrahamyan</name></creator><creator><name>H. V.</name></creator><creator><name>Mickaelian</name></creator><creator><name>A. M.</name></creator><creator><name>Paronyan</name></creator><creator><name>G. M.</name></creator><creator><name>Mikayelyan</name></creator><creator><name>G. A.,Gyulzadyan</name></creator><creator><name>M. V.</name></creator><date role="Updated">2019-03-07T14:45:37Z</date><date role="Created">2019-02-26T13:35:25Z</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>radio-sources</subject><subject>astronomical-object-identification</subject><subject>photometry</subject><subject>visible-astronomy</subject><subject>active-galactic-nuclei</subject><description>In the present study we have cross-correlated NVSS and FIRST radio catalogues having radio flux measurements at the same 1.4GHz frequency. This way we benefit from repeated observations from both catalogues, as they give more accurate positions and fluxes and more important, reveal large differences between the two measured fluxes, thus allowing to establish radio variability. As a result 79382 radio variables have been revealed, including 6301 with flux differences at 1.4GHz larger than 15mJy, 1917 with flux differences 45mJy and 260 with flux differences 200mJy. By using a special technique (Mickaelian &amp; Sinamyan 2010 (J/MNRAS/407/681) Mickaelian+ 2011 (J/MNRAS/415/1061)), 2425 optically variable objects out of 6301 radio sources have been revealed. 2425 radio sources with both high radio and optical variability into four categories have been divided. 1206 (19%) out of 6301 radio sources have activity types from available catalogues and 619 (25.5%) out of 2425 radio sources with at the same time radio and optical variability have activity types from available catalogues. In addition, 279 radio sources out of 2425 have high variability in optical range. We have established their activity types when available. The IR fluxes and colours for the 6301 variable radio sources have been studied. Colour-colour diagrams show that most of the "unknown" sources are galaxies. The activity types for 110 (42%) out of 260 extremely high variable radio sources also have been retrieved.</description><source format="bibcode">2018A&amp;C....25..176A</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/A+C/25.176</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/VII/279">VII/279 : SDSS quasar catalog: twelfth data release (Paris+, 2017)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VII/274">VII/274 : The Roma BZCAT - 5th edition (Massaro+, 2015)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/II/338">II/338 : IRAS PSC/FSC Combined Catalogue (Abrahamyan+ 2015)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VIII/92">VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VII/258">VII/258 : Quasars and Active Galactic Nuclei (13th Ed.) (Veron+ 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/305">I/305 : The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)</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/I/267">I/267 : The APM-North Catalogue (McMahon+, 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VIII/65">VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/I/252">I/252 : The USNO-A2.0 Catalogue (Monet+ 1998)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/583/A75">J/A+A/583/A75 : Large Quasar Astrometric Catalog 3 (LQAC-3) (Souchay+, 2015)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJS/213/3">J/ApJS/213/3 : Low-frequency flat spectrum sources (Massaro+, 2014)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/742/49">J/ApJ/742/49 : FIRST var. &amp; transient radio sources (Thyagarajan+, 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/415/1061">J/MNRAS/415/1061 : Variability of FBS blue stellar objects (Mickaelian+ 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/737/45">J/ApJ/737/45 : Var. 1.4GHz radio sources from NVSS &amp; FIRST (Ofek+, 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/407/681">J/MNRAS/407/681 : Proper motions of blue stellar objects (Mickaelian+, 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/645/856">J/ApJ/645/856 : Beamed radio-intermediate quasars (Wang+, 2006)</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/other/A+C/25.176</accessURL><mirrorURL title="VizieR at IUCAA: Pune, 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11208-11209 11211-11212 11214 11216-11217 11220-11222 11224 11227 11230 11232 11234-11235 11237 11241-11242 11246 11249-11250 11257-11258 11260 11264-11265 11270 11275-11277 11280 11284 11289 11291-11292 11295 11299 11305 11309 11315-11316 11320-11321 11323-11326 11329 11334 11337 11339 11341 11344 11347 11349 11354 11358 11362-11363 11369 11372 11374 11380 11382 11384 11387 11389-11390 11395 11398 11402-11404 11407 11410-11412 11416-11418 11426 11430 11434 11438-11439 11444 11446 11449-11450 11452 11454 11456 11464 11466 11476 11482 11485-11486 11489 11491 11493-11494 11496-11497 11504 11508 11520-11521 11523 11532-11534 11541 11543 11546-11547 11550 11552 11557 11560 11562-11563 11574 11576 11578 11587 11589 11592-11594 11649-11650 11653 11660 11781-11783 11785 11787-11788 11798 11800 11804-11806 11813 11822-11823 11825 11834 11841 11848 11850 11905 11908-11910 11914 11921 12289 12291 12293 12305-12306 12310-12313 12315 12317 12319-12321 12323 12325 12329 12336-12337 12339 12345 12347-12348 12352-12354 12358 12360 12362 12369 12371 12375 12378 12380-12382 12386 12388 12391 12393-12394 12397-12398 12400-12401 12416 12429 12433 12440 12443 12480 12484 12545-12546 12548-12549 12551 12553 12560 12571 16887 16894 17151 17215 17228-17229 17231-17233 17236-17238 17245-17247 17257 17260 17266 17271 17273 17275 17293-17294 17299 17301 17306 17309 17315-17316 17321 17323 17327-17328 17330 17333 17336 17340-17342 17345-17347 17350-17351 17353 17357-17358 17362 17366 17368-17369 17383 17388 17391 17394-17396 17401 17405-17407 17471 17487-17489 17491-17492 17497 17503 17507 17509-17511 17514-17517 17519 17522 17526-17527 17529-17531 17533-17535 17551 17554 17557 17560 17563 17565 17572 17577 17582 17585 17588 17594-17595 17601-17605 17607-17608 17614 17617-17619 17621 17623 17625 17627 17629 17632 17634 17638 17641-17642 17649-17652 17656-17658 17662-17663 17666 17675-17676 17678 17681 17684-17686 17695-17696 17699 17701 17706-17708 17711 17714-17715 17717-17718 17720 17724-17725 17732 17737 17742 17745 17758-17759 17763-17765 17767-17768 17770 17774 17777 17779 17781-17782 17784 17786 17789-17791 17793 17795 17797 17804 17807 17809-17810 17813-17814 17817 17819-17820 17823 17831-17832 17834-17837 17839 17842-17846 17850-17851 17853-17856 17858-17860 17862 17864-17866 17868 17870 17873 17875-17877 17882 17886 17888-17890 17893-17894 17897-17898 17900-17902 17904 17906-17909 17913-17915 17922-17923 17926 17929 17932 17934 17937 17939 17944-17945 17949 17951 17956-17958 17962 17972 17976 17980 17985-17988 17990-17992 17995-17996 18003 18006 18009 18011 18014-18017 18019-18020 18025 18027 18030-18033 18035-18036 18039-18042 18044 18050 18053 18055 18057 18059-18062 18066-18067 18069 18078 18084 18088-18090 18092-18093 18095-18096 18099 18102-18104 18106-18107 18111 18116 18118-18119 18124-18125 18127 18129-18131 18134 18137-18138 18141-18144 18147 18149-18150 18155-18156 18158-18159 18162 18165-18167 18169-18171 18173-18175 18188-18189 18191-18192 18194 18197 18203 18205-18209 18212-18213 18218 18220 18224-18225 18231 18244 18248-18249 18253 18255 18258 18265-18268 18271-18273 18275 18277-18278 18280-18281 18283 18292-18294 18300 18304 18306-18307 18310-18313 18315 18317-18318 18320 18322-18324 18329 18334 18340-18341 18347-18349 18352 18354 18360 18363-18364 18369 18376-18378 18380 18384-18385 18400 18495 18510 18519-18521 18524 18527 18529-18530 18535 18538-18539 18542 18547-18549 18552 18555 18559 18581 18590-18591 18601 18608 18611-18612 18621-18622 18625 18627 18630-18631 18634-18636 18638 18640-18641 18644 18647 18649 18651 18654 18662 18666 18668-18670 18675 18677-18678 18681 18683 18686 18693 18696-18697 18700-18701 18706-18707 18712 18716 18718-18719 18721 18724-18725 18727-18728 18733 18747-18749 18752 18755-18756 18762-18763 18767 18772 18775 18778-18780 18784 18787 18792 18801 18803 18805-18807 18809-18810 18815 18817-18818 18821-18822 18824-18825 18827-18828 18835 18839 18842 18846 18852-18853 18857 18861 18865 18868-18870 18873 18877 18880-18881 18883-18884 18886-18887 18889 18893-18895 18897-18899 18902 18908-18909 18911 18913-18917 18919 18921 18925-18928 18931 18937-18940 18942-18943 18945-18948 18952 18955-18958 18961-18962 18964 18966-18968 18970 18973 18976 18981 18983 18988 18994 18996-18997 19001 19004 19007-19008 19011 19014 19023 19026 19028-19029 19035 19040 19042-19045 19055 19061-19063 19068 19071-19072 19077 19079-19080 19082 19088 19091 19094 19096 19100-19102 19105 19109-19110 19115 19117-19119 19126-19127 19132 19135 19139 19141-19142 19145 19150-19151 19155-19157 19161-19162 19168-19169 19171 19173 19176-19178 19182 19185 19194-19196 19198-19199 19201-19202 19204-19205 19211 19213-19215 19225 19227 19233 19235-19238 19243 19245-19247 19250 19252-19254 19256-19258 19260 19262-19264 19267-19269 19271-19274 19276-19278 19288-19290 19294 19296-19297 19299 19302 19306 19308 19311-19314 19317 19319 19321-19323 19329 19331-19334 19340 19342 19350 19352 19355 19362 19364 19367 19370 19375 19377 19383 19385 19392-19393 19397 19401-19402 19426 19430 19456 19458-19459 19461 19465-19466 19468 19470-19471 19475-19478 19480-19481 19483 19485-19488 19491 19496 19498 19501 19504 19506 19508-19509 19512 19517 19520-19522 19526-19529 19532-19534 19540-19542 19544 19546-19547 19550 19553 19555 19558-19559 19564 19566-19568 19572-19573 19576 19583 19589-19590 19592-19593 19596-19598 19600 19604-19605 19609-19611 19614-19615 19622 19624-19625 19643 19649 19654-19655 19670 19673 19680 19712 19717 19719-19720 19723 19727 19744 19750-19751 19755 19760 19840 19968 19970-19971 19977 19979 19984 19993 20006 20010 21843-21844 21846 21854-21855 21861 21871 21873-21874 21878 21959 21968-21969 21976-21977 21979 21989 22002 22004-22005 22007 22009-22010 22013-22014 22357 22360 22363-22365 22385 22387-22390 22397 22484-22485 22492 22495 23045 23051 23053-23058 23073 23076 23146-23148 23177-23179 23182 23188 23191 23193 23202 23206-23207 23209-23210 23212 23214 23218 23231-23234 23247 23259 23271 23273 23275 25439 25459 25461-25464 25468 25503 25523 25526 25530-25531 25539 25542-25543 25546-25548 25555-25557 25566-25568 25570-25571 25574-25575 25577-25578 25585 25589 25592-25593 25596-25598 25715 25718-25719 25721-25723 25775 25786 25788 25797 25801 25812 25822-25824 25827 25831-25832 25834-25835 25837 25839-25841 25845 25848 25860-25862 25865-25867 25872 25875-25876 25878 25881-25883 25891-25892 25894 25898 25900 25902-25904 25906 25911 25915-25916 25922 25925 25929 25933-25935 25942-25943 25946 25948 25950 25955-25956 25959 25964 25967-25969 25971-25972 25977 25980 25989 25991-25992 25994-25997 26008 26010-26011 26016 26019-26020 26022-26023 26027-26030 26039 26049 26051 26053 26060 26062-26063 26067-26069 26071-26074 26079 26083 26085-26086 26090 26097-26098 26102-26103 26107-26109 26111 26117-26119 26121 26123 26125-26126 26128 26131 26135 26139 26144 26148 26151 26155-26157 26163 26165-26166 26169 26171 26179 26181-26182 26186-26187 26192 26196-26198 26201-26202 26206-26207 26217 26219 26222-26226 26231 26236 26238 26241 26243 26245 26248-26249 26252-26254 26256 26262 26266 26268-26269 26271 26273 26277-26278 26282 26285 26287 26291-26292 26294-26295 26298 26303 26306 26308 26310 26318 26327-26328 26331 26335-26336 26340 26342-26345 26355 26361 26372-26374 26379 26382 26387-26388 26390-26391 26393-26394 26396 26399-26400 26403 26405 26407 26409 26413-26415 26417 26423 26427 26432 26437 26440 26442-26444 26451 26456 26458 26465 26467-26468 26472 26478 26485-26486 26491 26493 26499 26502-26503 26505 26507-26509 26513-26514 26516 26521 26526 26529 26532-26534 26536 26538 26547-26549 26551-26552 26554 26563 26570-26572 26575-26576 26581 26587-26588 26603 26607-26609 26611-26612 26616 26621 26623 26718 26742 26744-26745 26804-26805 26809 26811-26813 26819-26821 26827-26828 26832 26839-26842 26848 26850-26851 26854-26855 26857 26861 26864 26866 26874 26889 26894-26895 26897 26905 26909 26917-26918 26921 26929 26936 26939 26945 26960 26967-26968 26974-26975 26977-26979 26988 26990-26991 26993 26996 27000-27001 27005-27006 27008 27011 27016-27017 27019 27021-27023 27025-27028 27030 27037 27041-27042 27044-27046 27049 27051 27059-27060 27062 27065-27066 27069 27078-27080 27083 27085 27096 27098 27101 27104 27108 27110 27116 27118-27119 27125 27130 27132-27134 27144-27145 27149 27151-27153 27155-27156 27159-27160 27163 27166 27172 27174-27176 27179 27181 27184 27187 27189 27192 27194 27196 27198 27201 27203 27205-27206 27209-27211 27218-27220 27223 27225-27226 27228 27230 27232 27236 27238-27241 27243 27245-27246 27248-27249 27261 27263 27266 27268 27271 27273-27275 27277-27279 27283 27289-27292 27297 27300 27303 27308 27310-27312 27315 27318 27323 27329 27336-27338 27340 27345 27347 27355 27360 27362 27364-27366 27374 27376-27378 27382 27388 27390-27391 27394-27395 27397 27405-27406 27408 27410 27413 27417-27418 27425-27428 27432-27434 27440-27441 27446-27447 27455-27457 27459 27462 27465-27468 27473 27475 27477 27479 27481 27486 27488-27489 27492-27493 27497 27502 27504 27506-27507 27512-27513 27520-27521 27523 27532 27534-27537 27539 27547 27552-27553 27555 27557 27562-27563 27566-27567 27569 27571 27580-27581 27583-27584 27586-27587 27589 27591 27595 27597-27598 27607-27610 27612 27614 27616 27618 27621-27622 27626-27627 27631 27633 27640 27644 27646-27648 27653-27654 27658-27660 27663 27665 27670 27672 27683-27684 27687 27689 27695 27699 27701-27702 27704-27705 27712 27722 27733-27734 27738-27739 27741-27742 27747 27749-27750 27758 27760 27765 27767-27768 27771-27774 27777 27779 27781 27783-27784 27787-27788 27793-27794 27797 27799 27806 27818 27821 27830 27832 27841 27843-27844 27846-27848 27850 27853 27859 27861-27862 27865-27867 27871 27877 27883 27885 27887-27888 27901 27903 27907 27909 27914-27915 27924 27926 27929-27931 27934 27936 27938 27952 27954 27959 27964 27967 27971-27972 27974-27975 27977 27986 27990 27994 27996 28007-28008 28010 28013 28015-28016 28031 28033-28034 28036 28039-28040 28042 28045 28053-28054 28060 28063 28065 28067 28069-28071 28075 28082-28083 28085 28094-28096 28099 28104-28105 28107 28110 28114 28116 28119 28121 28124 28127-28128 28131 28133 28137-28139 28141-28143 28145 28149 28151 28153-28154 28156 28162 28165-28168 28170-28171 28174 28176 28182 28184 28189 28193 28195-28198 28202-28203 28207-28209 28213 28215-28218 28220 28225 28233-28234 28236 28242-28243 28245 28251-28252 28255-28257 28265-28266 28268-28269 28271-28273 28276 28279-28280 28282 28287 28297 28299-28300 28314-28316 28318-28319 28325-28326 28330 28335 28338-28339 28348 28350 28352 28355 28372-28373 28376 28378 28381 28383 28385 28387-28388 28391 28393 28397 28401-28403 28407 28409 28416-28417 28420-28421 28423-28424 28433 28436 28443-28444 28446 28449 28453-28455 28458-28459 28465 28468 28470-28471 28474 28479 28481 28486 28488 28490 28492 28495 28502 28509-28510 28516-28518 28520 28522 28527 28529-28531 28537-28538 28540 28544-28546 28550-28551 28554 28558-28560 28563 28565 28567 28574-28576 28583-28584 28589-28591 28598 28600 28604-28606 28612-28613 28615-28616 28618-28619 28621-28623 28626 28632 28638-28639 28641-28642 28646 28651-28652 28660 28664 28670-28671 30031 30034-30035 30037-30038 30046 30049-30051 30055 30062 31242-31243 31259 31262 31265 31267-31268 31277 31281 31284 31286-31287 31290-31291 31294 31310-31311 31334 31346-31347 31349 31353-31354 31357 31362-31363 31365-31366 31369-31370 31374 31383-31384 31394 31398-31400 31402 31405 31407 31409 31411 31416-31417 31420-31421 31425-31426 31429-31431 31441 31443 31446 31451 31456 31458-31459 31465 31467 31469 31471-31472 31478 31482-31483 31485-31487 31521-31522 31524 31527-31528 31530-31532 31534 31542 31544-31545 31549 31551 31587 31595-31596 31610-31611 31614 31623-31625 31628 31633 31635 31638 31649 31652 31654 31657 31659-31661 31663 31679-31682 31685 31687 31689-31691 31695 31708 31711-31712 31715 31717 31726-31727 31731-31733 31737 31741 31743 32302 32384 32386-32388 32390 32397 32412 32417 32419-32420 32425-32428 32434-32436 32444 32463 32474 32480 32484-32485 32487 32490 32493 32496-32497 32500 32504 32506 32509 32687 36603 36605 36703 36723 36726-36728 36747 36762-36765 36769-36770 36772-36773 36776-36778 36782 36784-36785 36789 36794-36795 36797-36798 36807 36810 36812 36814-36816 36818 36826 36833-36834 36837-36838 36844 36846 36850-36851 36853 36856 40822 40829-40830 40902 40909 40915 40917-40918 40923-40924 40935 40942 40945-40946 40951-40952 44911 44914-44916 44918-44919 44921-44922 44975 44982-44983 44990 44996 45001-45003 45006 45009 45011-45012 45016 45022 45025-45026 45034-45035 45037 45043 45046 45048 45050 45053 45055 48989 48991 49010 49012 49015-49016 49019 49021 49077 49079 49084 49100 49107-49108 49120 49122-49123 49128 49142 49149 49151</spatial><spectral>9.276497240453405e-25 9.276497240453405e-25</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/A+C/25.176?format=ascii</footprint><waveband>Optical</waveband><waveband>Radio</waveband></coverage><tableset><schema><name>default</name><table><name>J/other/A+C/25.176/table2</name><description>Variable radio sources</description><column><name>Fr</name><description>[1/67] F_r_ value (2)</description><ucd>src.var.amplitude</ucd><dataType xsi:type="vs:VOTableType">float</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>RAJ2000</name><description>FIRST right ascension (J2000)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>FIRST declination (J2000)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd></column><column><name>Opt</name><description>Display the optical variability for this source if any (link to table 8)</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>FIRST</name><description>FIRST designation (JHHMMSS.s+DDMMSS)</description><ucd>meta.id;phys.atmol.configuration;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="16*">char</dataType><flag>primary</flag></column><column><name>Fpeak</name><description>[0.8/9709] FIRST peak flux density at 1.4GHz</description><unit>mJy</unit><ucd>phot.flux.density;em.radio.750-1500MHz</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Fint</name><description>[0.5/122194] FIRST integrated flux density at 1.4GHz</description><unit>mJy</unit><ucd>phot.flux.density;em.radio.750-1500MHz</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>Rms</name><description>[0.06/5.5] FIRST local noise estimate</description><unit>mJy</unit><ucd>stat.stdev;instr.det.noise</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>RANdeg</name><description>NVSS right ascension (J2000)</description><unit>deg</unit><ucd>pos.eq.ra</ucd></column><column><name>DENdeg</name><description>NVSS declination (J2000)</description><unit>deg</unit><ucd>pos.eq.dec</ucd></column><column><name>NVSS</name><description>NVSS designation (HHMMSS+DDMMSS; J2000)</description><ucd>meta.id.cross</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>S1.4</name><description>[2.3/138487] NVSS integrated flux density at 1.4GHz</description><unit>mJy</unit><ucd>phot.flux.density;em.radio.750-1500MHz</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_S1.4</name><description>[0.4/4859] S1.4 uncertainty</description><unit>mJy</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>del(F)</name><description>[15/3099] {Delta}F value (1)</description><unit>mJy</unit><ucd>src.var.amplitude</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>AT</name><description>Activity Type (3)</description><ucd>src.class</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>IAT</name><description>Information on catalogues from where we take the activity type (4)</description><ucd>meta.id;meta.dataset</ucd><dataType xsi:type="vs:VOTableType" arraysize="6*">char</dataType></column><column><name>Simbad</name><description>Simbad column added by the CDS</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column></table><table><name>J/other/A+C/25.176/table8</name><description>Variable radio sources which have optical variability</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>RAJ2000</name><description>FIRST right ascension (J2000)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>FIRST declination (J2000)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd></column><column><name>B1</name><description>[6/24.2]? B1 (POSS1 BEST) magnitude (1)</description><unit>mag</unit><ucd>phot.mag;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_B1</name><description>[0/4.6]? B1 (POSS1 BEST error) magnitude</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>R1</name><description>[4.5/21.1]? R1 (POSS1 BEST) magnitude (1)</description><unit>mag</unit><ucd>phot.mag;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_R1</name><description>[0/4.5]? R1 (POSS1 BEST error) magnitude</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>B2</name><description>[6.3/23.1]? B2 (POSS2 BEST) magnitude (1)</description><unit>mag</unit><ucd>phot.mag;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_B2</name><description>[0/2.5]? B2 (POSS2 BEST error) magnitude</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>R2</name><description>[5.3/21]? R2 (POSS2 BEST) magnitude (1)</description><unit>mag</unit><ucd>phot.mag;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_R2</name><description>[0/4]? R2 (POSS2 BEST error) magnitude</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>del(B)</name><description>[-9.7/10.4]? Difference variability {Delta}B</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Br</name><description>[0/326]? Relative variability B_r_</description><ucd>src.var.amplitude</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>del(R)</name><description>[-16.6/11.6]? Difference variability {Delta}R</description><unit>mag</unit><ucd>phot.mag;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Rr</name><description>[0/220]? Relative variability R_r_</description><ucd>src.var.amplitude</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Var</name><description>Variability category (2)</description><ucd>meta.code;src.var</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>USNOB1</name><description>Display data from the USNO-B1.0 catalog (I/284) within 3"</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>USNOA2</name><description>Display data from the USNO-A2.0 catalog (I/252) within 3"</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>GSC</name><description>Display data from the GSC2.3.2 catalog (I/305) within 3"</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>APM</name><description>Display data from the APM catalog (I/267) within 3"</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column></table></schema></tableset></ri:Resource>