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CATEGORIES:IoA Dynamics Lunch
SUMMARY:What can we learn from wide binaries? - Cathie Cla
 rke (IoA Cambridge)
DTSTART;TZID=Europe/London:20250828T123000
DTEND;TZID=Europe/London:20250828T133000
UID:TALK235003AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/235003
DESCRIPTION:Despite their rarity\, (ultra-) wide binaries comm
 and considerable interest\, both in terms of their
  origin and survival and on account of what they t
 ell us about gravity in the ultra-low field limit.
  In addition\, through assuming that their compone
 nts are coeval and chemically homogeneous at birth
 \, chemical anomalies can be used to probe differe
 ntial accretion of planetary material.  Here I wil
 l discuss the main theories for wide binary format
 ion (whether they form through orbital reconfigura
 tion within small N clusters or whether they resul
 t from capture in the context of large N dissolvin
 g clusters)\, emphasising what observations can po
 tentially constrain the dominant formation channel
 . Finally I describe the recent rise and fall of t
 he idea that wide binaries prove the correctness o
 f MOND.
LOCATION:Institute of Astronomy 
CONTACT:Mor Rozner
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