BEGIN:VCALENDAR VERSION:2.0 PRODID:-//ZContent.net//ZapCalLib 1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VEVENT DTSTART;TZID=Atlantic/Canary:20160407T103000 DTEND;TZID=Atlantic/Canary:20160407T113000 UID:iactalks-917 X-WR-CALNAME: IAC Talks: Open Astronomy Seminars X-ORIGINAL-URL: /iactalks/Talks/view/917 CREATED:2016-04-07T10:30:00+01:00 X-WR-CALDESC: IAC Talks upcomming talks SUMMARY:Convectively driven sinks and magnetic fields in the quiet Sun DESCRIPTION:Convectively driven sinks and magnetic fields in the quiet Sun\ nDr. Iker S. Requerey\n\nSolar surface convection displays highly localize d sinks where cold plasma returns to the solar interior. On its way to be ing engulfed by a downdraft the plasma can also advect and intensify magn etic fields up to kG field strengths. Such theoretical predictions streng then the idea that localized downdrafts are places where the concentratio n of magnetic fields is favored. The observational discovery of convectiv ely driven sinks is rather recent, however, and its role in the formation and evolution of quiet-Sun magnetic features is still poorly characteriz ed. In our work, we provide both quantitative and qualitative bases for t he association between sinks and magnetic fields using high spatial reso lution spectropolarimetric data acquired with the Imaging Magnetograph eX periment on board Sunrise. We find 3.1 x 10-3 sinks Mm-2 minute-1 located at mesogranular vertices. These sinks are associated to (1) horizontal v elocity flows converging to a central point and (2) long-lived downdrafts .  The spatial distribution of magnetic fields in the quiet Sun is a lso examined. The strongest magnetic fields are preferentially located at sinks. We find that 40% of the pixels with longitudinal component of the magnetic field higher than 500 G are located in the close neighborhood o f sinks.  The study of individual examples reveal that sinks can pla y an important role in the evolution of quiet-Sun magnetic features. END:VEVENT END:VCALENDAR