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[Fizinfo] Dark Energy szeminarium

Chronological Thread 
  • From: Zsolt Szep <szepzs AT>
  • Subject: [Fizinfo] Dark Energy szeminarium
  • Date: Tue, 9 Dec 2008 22:39:13 +0100 (CET)
  • List-archive: <>
  • List-id: ELFT HÍRADÓ <>

Tisztelt Kollegak,

Szeretnem figyelmukbe ajanlani a kovetkezo szeminariumot, az eloado alabbi

"Figyelmeztetes: a Collegium Budapest kozonsegenek egy jo resze human
erdeklodesu/kepzettsegu, ezert ez inkabb ismeretterjeszto jellegu,
mint szakmailag mely vagy reszletes eloadas lesz, de ezzel egyutt
minden erdeklodot szerettel varok,"

Szep Zsolt

Institute for Advanced Study
Szenthromsg utca 2.
H-1014 Budapest
tel: +36 1 2248 301, fax: +36 1 2248 310, email:
kcsepi AT

Thursday, 11 December 2008, 11 a.m. Seminar Room

Istvn Szapudi
(Associate Professor of Astronomy at the Institute for Astronomy,
University of Hawaii, U. S. A.)

"Dark Energy: the Biggest Puzzle of 21-st Century Physics"

Kivonatos ismertetes:

Dark energy cannot be observed directly, its presence can only be deduced
from its effect on the expansion and growth of the universe. Yet, its
existence has already been firmly established by several measurements, and
its contribution to the total energy density
of the universe at present is at the level of 3/4 of the total. The
otherwise extremely successful quantum field theories, which predict Dark
Energy as the energy of vacuum, overestimate its magnitude by 120 orders.
Dr. Szapudi argues that the existence of Dark Energy constitutes the biggest puzzle of twenty-first century physics. An interesting opportunity for its detection is provided by the integrated Sachse-Wolf (ISW) effect, a subtle change of the energy of photons of the Cosmic Microwave Background as they fly through the intervening structure ripped apart by Dark Energy. He will present their latest ISW analyses using correlations between the Cosmic Microwave Background observed by the Wilkinson Anisotropy Probe, and the intervening large scale structure traced by the Large Red Galaxies in the Sloan Digital Sky Survey.

  • [Fizinfo] Dark Energy szeminarium, Zsolt Szep, 12/09/2008

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