Tuesday, July 27, 2010, 2:00 pm — Small Seminar Room, Bldg. 510
The Lyman-alpha forest (LyaF) is the absorption in high redshift quasar spectra
by neutral hydrogen in the intergalactic medium.
It provides a good probe of the density field at z~3 on scales down to
~100 kpc. When combined with the CMB on larger scales, the LyaF observed in
thousands of quasar spectra from SDSS currently provides strong constraints
on the power spectrum of initial density perturbations, neutrino masses that
affect structure formation, and warm dark matter. These constraints will
improve significantly with the expanded BOSS data set, and even more beyond
that with BigBOSS. BOSS/BigBOSS will also probe dark energy by detecting the
baryonic acoustic oscillation standard ruler in the LyaF absorption.
Hosted by: Anze Slosar
6615 | INT/EXT | Events Calendar
Not all computers/devices will add this event to your calendar automatically.
A calendar event file named "calendar.ics" will be placed in your downloads location. Depending on how your device/computer is configured, you may have to locate this file and double click on it to add the event to your calendar.
Event dates, times, and locations are subject to change. Event details will not be updated automatically once you add this event to your own calendar. Check the Lab's Events Calendar to ensure that you have the latest event information.