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Dark Energy from the Largest Galaxy Maps

SETI Institute

Tuesday, April 29, 2014 from 12:00 PM to 1:00 PM (PDT)

Dark Energy from the Largest Galaxy Maps

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General Admission Ended Free  

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Event Details

Speaker: David Schlegel, UC Berkeley
http://www.mymultiplesclerosis.co.uk/universe-big/images/david-schlegel.jpg
Dark Energy from the Largest Galaxy Maps


Abstract: Dark energy is a phenomena causing the Universe to expand more
rapidly than can be explained by Einstein's laws of gravity.  Its discovery
merited the 2011 Nobel Prize in Physics.

The effects of dark energy imprint on large galaxy maps. The Baryon
Oscillation Spectroscopic Survey (BOSS) on the Sloan Telescope has
mapped 200 million galaxies in 2-D, and 1.5 million galaxies and quasars
in 3-D.  We measure the scale of the universe to percent-level precision at
redshifts z=2.4, z=0.6 and z=0.3, from the deceleration to acceleration
driven by dark energy.  Recent maps are consistent with the "simplest"
modification of Einstein's laws, the additional of a cosmological constant.

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When & Where


SETI Institute
189 N Bernardo Ave
Mountain View, CA 94043

Tuesday, April 29, 2014 from 12:00 PM to 1:00 PM (PDT)


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Organizer

SETI Institute

The mission of the SETI Institute is to explore, understand and explain the origin, nature and prevalence of life in the universe.

We believe we are conducting the most profound search in human history — to know our beginnings and our place among the stars.

The SETI Institute is a nonprofit corporation founded in 1984 (California Corporation #1261957). The Institute is a scientific and educational organization governed by the provisions of Section 501(c)(3) of the U.S. Internal Revenue Code, and the Institute's Federal identification number for reporting and tax purposes is 94-2951356.

The Institute welcomes support from private foundations or other groups/individuals interested in SETI. Each funded effort (135 separate multi-year projects funded since 1984) is supervised by a principal investigator who is responsible to the Board of Trustees for the conduct of the activity.

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Presenting Sponsor (2016): Leonard Tramiel

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Dark Energy from the Largest Galaxy Maps
Mountain View, CA Events Seminar Science & Tech

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