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BEGIN:VEVENT
DTSTAMP:20260428T032954Z
DTSTART;VALUE=DATE-TIME:20191125T150000
DTEND;VALUE=DATE-TIME:20191125T160000
SUMMARY:David Kuridze (Aberystwyth): "High resolution mapping of the elus
 ive magnetic field of the solar corona"
TZID:Europe/London
UID:20191125-8a17841a6d3ece05016d8bb8371b6805@warwick.ac.uk
CREATED:20191120T091607Z
DESCRIPTION:Abstract: The magnetic field is key to the dynamics\, evoluti
 on\, and heating of the solar atmosphere\, yet direct measurements are r
 are and highly uncertain. In this seminar I will discuss about the techn
 iques and challenges of measuring the magnetic field in the corona. I wi
 ll then present the results from my current work where we report on the 
 unique observations of the flaring coronal loops at the solar limb using
  high resolution imaging spectropolarimetry from the Swedish 1-meter Sol
 ar Telescope. The vantage position\, orientation and nature of the chrom
 ospheric material that filled the observed flare loops allowed us to det
 ermine their magnetic field with unprecedented accuracy. Our analysis re
 veals coronal magnetic field strengths as high as 350 Gauss at heights u
 p to 25 Mm above the solar limb. These measurements are substantially hi
 gher than a number of previous estimates and could have considerable imp
 lications for our current understanding of the extended solar atmosphere
 .
LOCATION:PS128
CATEGORIES:CFSA Seminar
LAST-MODIFIED:20191120T091607Z
ORGANIZER;CN=Anne-Marie Broomhall:
END:VEVENT
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