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SUMMARY:Wide binaries in dwarf galaxies as probes of dark matter
DTSTART;VALUE=DATE-TIME:20230320T140000Z
DTEND;VALUE=DATE-TIME:20230320T142500Z
DTSTAMP;VALUE=DATE-TIME:20240704T115718Z
UID:indico-contribution-175@meetings.aip.de
DESCRIPTION:Speakers: Christopher Kervick (Carnegie Mellon University)\nVe
 ry wide stellar binaries\, with semi-major axes of hundreds of AU and larg
 er\, constitute sensitive probes of the underlying gravitational potential
  in which they live\, having provided some of the first experimental const
 raints on the nature of dark matter in the Milky Way halo.  As such\, the
  detection and characterization of populations of wide binaries in nearby 
 old dwarf galaxies could provide us with a completely new window onto the 
 properties of dark matter on the smallest scales.  We have designed a new 
 method\, geometric in its essence\, for deriving the density and projected
  semimajor-axis distribution of a population of binary systems that does n
 ot resort to standard estimators of the two-point correlation function\, a
 nd will present results of applying it to our Hubble Space Telescope surve
 y of the Ursa Minor dwarf spheroidal galaxy.  We will discuss the competi
 ng effects of the survey's depth\, coverage\, and angular resolution limit
 s against those of foreground stars and background galaxies\, and highligh
 t the potential advantages that JWST and the Roman Space Telescope may off
 er to this specific problem.\n\nhttps://meetings.aip.de/event/20/contribut
 ions/175/
LOCATION:Haus H\, Telegrafenberg
URL:https://meetings.aip.de/event/20/contributions/175/
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