<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2025-06-27T11:27:07Z" status="active" updated="2026-01-08T10:08:40Z" 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/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface.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:DataService"><title>mlcolour Datalink Service</title><identifier>ivo://org.gavo.dc/mlcolour/q/sdl</identifier><curation><publisher>The GAVO DC team</publisher><creator><name>Sorgenfrei, Christian</name></creator><creator><name>Schmidt, Robert W.</name></creator><creator><name>Wambsganss, Joachim</name></creator><date role="Updated">2025-07-10T14:00:47Z</date><contact><name>GAVO Data Centre Team</name><address>Mönchhofstrasse 12-14, D-69120 Heidelberg</address><email>gavo@ari.uni-heidelberg.de</email><telephone>+49 6221 54 1837</telephone></contact></curation><content><subject>quasars</subject><subject>light-curves</subject><subject>gravitational-lensing</subject><subject>strong-gravitational-lensing</subject><subject>gravitational-microlensing</subject><subject>quasar-microlensing</subject><description> This resource publishes the R and V band light curves of the
individual images of lensed quasars, in particular HE0435-1223,
HE1104-1805, HE2149-2745, and Q2237+0305. The light curves show
intrinsic quasar variations and additionally are affected by chromatic
microlensing. Access this data from our ivoa.obscore table. The
collection name is ``Chroma ML``.</description><source format="bibcode">2024A&amp;A...683A.119S</source><referenceURL>https://dc.g-vo.org/mlcolour/q/sdl/info</referenceURL><type>Archive</type><contentLevel>Research</contentLevel></content><rights rightsURI="https://spdx.org/licenses/CC-BY-4.0.html">The LCO quasar lightcurves is licensed under the `Creative Commons Attribution 4.0 License &lt;http://creativecommons.org/licenses/by/4.0/&gt;`_

.. image:: /static/img/ccby.png
   :alt: [CC-BY]

</rights><facility>Las Cumbres Observatory (LCO)</facility><instrument>1-meter Sinistro telescopes</instrument><coverage><waveband>Optical</waveband></coverage></ri:Resource>