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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20100513T000000
DTEND;TZID=Atlantic/Canary:20100513T010000
UID:iactalks-95
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/95
CREATED:2010-05-13T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Magnetic bright points in the quiet Sun
DESCRIPTION:Magnetic bright points in the quiet Sun\nDr. Jorge Sánchez Alm
 eida\n\nWe present a visual determination of the number of bright points (
 BPs) existing in the quiet Sun, which  are structures though to trace inte
 nse kG magnetic concentrations. The measurement is based on a  0.1 arcsec 
 angular resolution G-band movie obtained  with the Swedish Solar Telescope
  at the solar disk center. We find 0.97 BPs/Mm2, which is a factor three l
 arger than any previous estimate. It corresponds to  1.2 BPs per solar gra
 nule. Depending on the  details of the segmentation, the BPs cover between
  0.9% and 2.2% of the solar surface. Assuming their field strength to be 1
 .5 kG, the detected BPs contribute to the solar magnetic flux with an unsi
 gned flux density between 13G and 33G. If network and inter-network region
 s are counted separately, they contain 2.2 BPs/Mm2 and 0.85  BPs/Mm2, resp
 ectively.\n\n
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