Physical Evidence for Dark Energy

Details Physical Evidence for Dark Energy Physical Evidence for Dark Energy

2003-07-18

arxiv.org/abs/astro-ph/0307335v2

Astronomy and Astrophysics

Astrophysics

Submitted to Phys. Rev. Letters (6 pages)

Scientific paper

We present measurements of the angular cross-correlation between luminous red galaxies from the Sloan Digital Sky Survey and the cosmic microwave background temperature maps from the Wilkinson Microwave Anisotropy Probe. We find a statistically significant achromatic positive correlation between these two data sets, which is consistent with the expected signal from the late Integrated Sachs-Wolfe (ISW) effect. We do not detect any anti-correlation on small angular scales as would be produced from a large Sunyaev-Zel'dovich (SZ) effect, although we do see evidence for some SZ effect for our highest redshift samples. Assuming a flat universe, our preliminary detection of the ISW effect provides independent physical evidence for the existence of dark energy.

Affiliated with

Also associated with

No associations

Rating

Physical Evidence for Dark Energy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Physical Evidence for Dark Energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical Evidence for Dark Energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-489029