Image of Alice in Wonderland at the Mad Hatter's tea party You are cordially invited to afternoon tea and biscuits wine and chocolate

Astronomy Tea Talks at Caltech

Mondays, Hameetman auditorium (Cahill)
Tea:  4.00pm
Talk: 4.15pm

Organized by:

2011 - 2012 season:
23 January 2012 Christian Reichardt (Berkeley)

'Probing reionization and large-scale structure with the South Pole Telescope'

The South Pole Telescope (SPT) is a 10-meter telescope designed to survey the millimeter-wave sky, taking advantage of the exceptional observing conditions at the Amundsen-Scott South Pole Station. The telescope and its ground-breaking 960-element bolometric camera were successfully installed at the South Pole in 2007. Since then, SPT has embarked upon a large, three-frequency survey covering 6% of the entire sky. I will report on the multi-frequency power spectrum results for this survey, including a detection of the thermal Sunyaev-Zel'dovich (SZ) power and improved upper limits on the kinetic SZ power. I will discuss how we can use the kinetic SZ power and CMB polarization data to determine when the epoch of reionization began, when it ended and how long it lasted. I will also present predicted reionization constraints from CCAT.
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Last modified on 19th Jan 2012 by Marco Viero.  

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