IDEAS home Printed from https://ideas.repec.org/a/nat/nature/v427y2004i6969d10.1038_nature02139.html
   My bibliography  Save this article

A correlation between the cosmic microwave background and large-scale structure in the Universe

Author

Listed:
  • Stephen Boughn

    (Haverford College)

  • Robert Crittenden

    (University of Portsmouth)

Abstract

Observations of distant supernovae and the fluctuations in the cosmic microwave background (CMB) indicate that the expansion of the Universe may be accelerating1 under the action of a ‘cosmological constant’ or some other form of ‘dark energy’. This dark energy now appears to dominate the Universe and not only alters its expansion rate, but also affects the evolution of fluctuations in the density of matter, slowing down the gravitational collapse of material (into, for example, clusters of galaxies) in recent times. Additional fluctuations in the temperature of CMB photons are induced as they pass through large-scale structures2 and these fluctuations are necessarily correlated with the distribution of relatively nearby matter3. Here we report the detection of correlations between recent CMB data4 and two probes of large-scale structure: the X-ray background5 and the distribution of radio galaxies6. These correlations are consistent with those predicted by dark energy, indicating that we are seeing the imprint of dark energy on the growth of structure in the Universe.

Suggested Citation

  • Stephen Boughn & Robert Crittenden, 2004. "A correlation between the cosmic microwave background and large-scale structure in the Universe," Nature, Nature, vol. 427(6969), pages 45-47, January.
    • Handle: RePEc:nat:nature:v:427:y:2004:i:6969:d:10.1038_nature02139
    DOI: 10.1038/nature02139
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/nature02139
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1038/nature02139?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:nature:v:427:y:2004:i:6969:d:10.1038_nature02139. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.