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BEGIN:VEVENT
DTSTAMP:20260626T170824Z
DTSTART;VALUE=DATE-TIME:20151111T140000
DTEND;VALUE=DATE-TIME:20151111T150000
SUMMARY:Richard Townsend (University of Wisconsin-Madison)
TZID:Europe/London
UID:20151111-094d43f550a9dd770150adf84e7f6840@warwick.ac.uk
CREATED:20151028T102222Z
DESCRIPTION:MESA & GYRE: Stellar Astrophysics for the People MESA (Module
 s for Experiments in Stellar Astrophysics) is a numerical code for model
 ing the structure and evolution of all types of stellar objects\, from b
 rown dwarfs through to the most massive stars in the Universe. It is ava
 ilable to everyone under an open source license\, and since its release 
 in 2011 has drawn an impressive following in the stellar astrophysics co
 mmunity. GYRE (acronym pending) is a complementary open source code for 
 calculating the oscillation frequencies of models produced by MESA and o
 ther stellar evolution codes. By comparing these eigenfrequencies agains
 t the oscillation spectrum of a real star (observed\, e.g.\, by the Kepl
 er satellite) one can place constraints on the structure of the star -- 
 the technique of 'asteroseismology'. In the past year\, GYRE has been in
 tegrated into MESA so that this process can be largely automated. In thi
 s presentation I'll give an overview of the physics\, numerics and capab
 ilities of MESA and GYRE. I'll discuss the communities of practice that 
 have sprung up around these codes\, and describe how these communities a
 re being further nurtured. I'll then present some of the exciting projec
 ts enabled by the codes\, such as observational signatures of core heliu
 m flashes\; stellar probes of dark-matter physics\; surface nuclear burn
 ing on accreting neutron stars\; the metallicity dependence of the mass 
 threshold for core collapse\; and the generation of new sets of isochron
 es for use in other branches of astrophysics.
LOCATION:PS1.28
CATEGORIES:Astronomy Seminar
LAST-MODIFIED:20151028T102222Z
ORGANIZER;CN=Roberto Raddi:
END:VEVENT
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