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VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:Physics Seminar Speaker Series
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260516T172657Z
UID:tag:localist.com\,2008:EventInstance_45885460560545
DTSTART:20240423T203000Z
DTEND:20240423T220000Z
DESCRIPTION:"Dynamics of Solar Wind Outflow"\n\nThe Physics Department welc
 omes Dr. Yeimy Rivera as our final speaker in our 2023-2024 Seminar Speake
 r Series!\n\n4:30pm Snacks\, 4:45pm Talk\n\nIn the corona of the Sun\, pla
 sma is accelerated to speeds of hundreds of kilometers per second and heat
 ed to temperatures hundreds of times hotter than the Sun's surface before 
 it escapes to form the solar wind. Decades of space-based experiments have
  shown that the energization process does not stop after it escapes. Inste
 ad\, as the solar wind fills interplanetary space it continues to accelera
 te\, while cooling far more slowly than a freely expanding adiabatic gas w
 ould. This talk will discuss observations of a well-timed conjunction betw
 een two solar probes\, NASA’s Parker Solar Probe and ESA’s Solar Orbit
 er\, where we examine the large-scale energetics of a moderately fast\, hi
 ghly Alfvénic solar wind stream across the inner heliosphere\, observed f
 rom 13 solar radii to nearly the orbit of Venus (155 solar radii). Observa
 tions of the solar wind taken by the two probes across this region of spac
 e strongly support the hypothesis that large amplitude Alfvén waves are t
 he engine heating and accelerating the fastest solar wind beyond the coron
 a.\n\nDr. Yeimy Rivera is a solar astrophysicist at the Smithsonian Astrop
 hysical Observatory. She received her PhD at the University of Michigan in
  Space Physics. Her research pertains to understanding how the Sun generat
 es the continuous outflow of solar wind and how it influences interplaneta
 ry space and the solar system. She is part of NASA’s Parker Solar Probe 
 and European Space Agency’s Solar Orbiter team. She is the Deputy Projec
 t Scientist for future solar telescope – EUV CME and Coronal Connectivit
 y Observatory (ECCCO)\, and Project Scientist for the Airborne Coronal Emi
 ssion Surveyor (ACES) 2024 eclipse mission.
GEO:42.257827;-72.573976
LOCATION:Cleveland Hall\, L-3
SUMMARY:Physics Seminar Speaker Series
URL;VALUE=URI:https://events.mtholyoke.edu/event/physics-seminar-speaker-se
 ries-386
CATEGORIES:Lectures & Presentations
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