BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:The cosmological velocity field: from Slipher to modified gravity 
 - John Peacock (Royal Observatory Edinburgh)
DTSTART:20160202T140000Z
DTEND:20160202T150000Z
UID:TALK63873@talks.cam.ac.uk
CONTACT:Greg Willatt
DESCRIPTION:We have known about the expanding universe for around a centur
 y\, but the story of this discovery has been obscured by a number of myths
 .  Chief among these has been the role attributed to Edwin Hubble\, and fa
 r too little credit has been given to the true pioneers in this field.  Mo
 re than anyone\, the figure of Vesto Slipher stands out.  Working in isola
 tion at the Lowell Observatory in Arizona\, he was the first to prove the 
 true nature of galaxies and demonstrate that they are in motion (including
  the motion of our own Milky Way)\, around 100 years ago.  The first half 
 of this talk presents this history\, leading on to a review of the legacy 
 in modern cosmology of the peculiar velocities that Slipher discovered.  T
 he induced “redshift-space distortions” of galaxy clustering are now a
  leading tool that allow us to discriminate between Einstein’s relativis
 tic theory of gravity and competing alternatives.\n
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
END:VEVENT
END:VCALENDAR