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Title: Physical evidence for dark energy

Abstract

The authors 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. They 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. they do not detect any anti-correlation on small angular scales as would be produced from a large Sunyaev-Zel'dovich (SZ) effect, although they do see evidence for some SZ effect for their highest redshift samples. Assuming a flat universe, their preliminary detection of the ISW effect provides independent physical evidence for the existence of dark energy.

Authors:
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Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
15011774
Report Number(s):
FERMILAB-PUB-03-252-A
arXiv eprint number astro-ph/0307335; TRN: US200601%%904
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Journal Article
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; DETECTION; GALAXIES; RELICT RADIATION; SKY; UNIVERSE

Citation Formats

Scranton, Ryan, Connolly, Andrew J, Nichol, Robert C, Stebbins, Albert, Szapudi, Istvan, Eisenstein, Daniel J, Afshordi, Niayesh, Budavari, Tamas, Csabai, Istvan, Frieman, Joshua A, Gunn, James E, Johnston, David, Loh, Yeong-Shang, Lupton, Robert H, Miller, Christopher J, Sheldon, Erin Scott, Sheth, Ravi K, Szalay, Alexander S, Tegmark, Max, Xu, Yongzhong, Anderson, Scott F, and /Pittsburgh U. /Carnegie Mellon U. /Fermilab /Inst. Astron., Honolulu /Arizona U., Astron. Dept. - Steward Observ. /Princeton U.Observ. /Johns Hopkins U. /Eotvos U. /Chicago U., Astron. Astrophys. Ctr. /KICP, Chicago /Pennsylvania U. /Washington U., Seattle, Astron. Dept. /Apache Point Observ. /Illinois U.,Urbana, Astron. Dept. /Tokyo U., ICRR /LLNL, Livermore /Sussex U., Astron. Ctr. /Baltimore, Space Telescope Sci. /Michigan U. /Naval Observ., Flagstaff /Penn State U., Astron.Astrophys. Physical evidence for dark energy. United States: N. p., 2003. Web.
Scranton, Ryan, Connolly, Andrew J, Nichol, Robert C, Stebbins, Albert, Szapudi, Istvan, Eisenstein, Daniel J, Afshordi, Niayesh, Budavari, Tamas, Csabai, Istvan, Frieman, Joshua A, Gunn, James E, Johnston, David, Loh, Yeong-Shang, Lupton, Robert H, Miller, Christopher J, Sheldon, Erin Scott, Sheth, Ravi K, Szalay, Alexander S, Tegmark, Max, Xu, Yongzhong, Anderson, Scott F, & /Pittsburgh U. /Carnegie Mellon U. /Fermilab /Inst. Astron., Honolulu /Arizona U., Astron. Dept. - Steward Observ. /Princeton U.Observ. /Johns Hopkins U. /Eotvos U. /Chicago U., Astron. Astrophys. Ctr. /KICP, Chicago /Pennsylvania U. /Washington U., Seattle, Astron. Dept. /Apache Point Observ. /Illinois U.,Urbana, Astron. Dept. /Tokyo U., ICRR /LLNL, Livermore /Sussex U., Astron. Ctr. /Baltimore, Space Telescope Sci. /Michigan U. /Naval Observ., Flagstaff /Penn State U., Astron.Astrophys. Physical evidence for dark energy. United States.
Scranton, Ryan, Connolly, Andrew J, Nichol, Robert C, Stebbins, Albert, Szapudi, Istvan, Eisenstein, Daniel J, Afshordi, Niayesh, Budavari, Tamas, Csabai, Istvan, Frieman, Joshua A, Gunn, James E, Johnston, David, Loh, Yeong-Shang, Lupton, Robert H, Miller, Christopher J, Sheldon, Erin Scott, Sheth, Ravi K, Szalay, Alexander S, Tegmark, Max, Xu, Yongzhong, Anderson, Scott F, and /Pittsburgh U. /Carnegie Mellon U. /Fermilab /Inst. Astron., Honolulu /Arizona U., Astron. Dept. - Steward Observ. /Princeton U.Observ. /Johns Hopkins U. /Eotvos U. /Chicago U., Astron. Astrophys. Ctr. /KICP, Chicago /Pennsylvania U. /Washington U., Seattle, Astron. Dept. /Apache Point Observ. /Illinois U.,Urbana, Astron. Dept. /Tokyo U., ICRR /LLNL, Livermore /Sussex U., Astron. Ctr. /Baltimore, Space Telescope Sci. /Michigan U. /Naval Observ., Flagstaff /Penn State U., Astron.Astrophys. 2003. "Physical evidence for dark energy". United States. https://www.osti.gov/servlets/purl/15011774.
@article{osti_15011774,
title = {Physical evidence for dark energy},
author = {Scranton, Ryan and Connolly, Andrew J and Nichol, Robert C and Stebbins, Albert and Szapudi, Istvan and Eisenstein, Daniel J and Afshordi, Niayesh and Budavari, Tamas and Csabai, Istvan and Frieman, Joshua A and Gunn, James E and Johnston, David and Loh, Yeong-Shang and Lupton, Robert H and Miller, Christopher J and Sheldon, Erin Scott and Sheth, Ravi K and Szalay, Alexander S and Tegmark, Max and Xu, Yongzhong and Anderson, Scott F and /Pittsburgh U. /Carnegie Mellon U. /Fermilab /Inst. Astron., Honolulu /Arizona U., Astron. Dept. - Steward Observ. /Princeton U.Observ. /Johns Hopkins U. /Eotvos U. /Chicago U., Astron. Astrophys. Ctr. /KICP, Chicago /Pennsylvania U. /Washington U., Seattle, Astron. Dept. /Apache Point Observ. /Illinois U.,Urbana, Astron. Dept. /Tokyo U., ICRR /LLNL, Livermore /Sussex U., Astron. Ctr. /Baltimore, Space Telescope Sci. /Michigan U. /Naval Observ., Flagstaff /Penn State U., Astron.Astrophys.},
abstractNote = {The authors 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. They 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. they do not detect any anti-correlation on small angular scales as would be produced from a large Sunyaev-Zel'dovich (SZ) effect, although they do see evidence for some SZ effect for their highest redshift samples. Assuming a flat universe, their preliminary detection of the ISW effect provides independent physical evidence for the existence of dark energy.},
doi = {},
url = {https://www.osti.gov/biblio/15011774}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 2003},
month = {Tue Jul 01 00:00:00 EDT 2003}
}