The bulk flow in uLCDM and XCDMand the Hubble constant and sigma8 tensions

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

ShiekhAnsari Parnaz; Baghram Shant

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Physics Research Year:2023 | Volume:23 | Issue:1( پیاپی 91) Page(s): 205-214

Download Full-Text

Persian Verion

View:

Download:

Cites:

Information Journal Paper

Title

The bulk flow in uLCDM and XCDMand the Hubble constant and sigma8 tensions

Author(s)

ShiekhAnsari Parnaz | Baghram Shant | Issue Writer Certificate

Keywords

structure formationQ4

cosmological perturbation theoryQ4

bulk flowQ4

cosmological tensionsQ4

Abstract

The standard model of cosmology,, has been successful in describing many observations. With the improvement of the number and the accuracy of observations, some inconsistencies among key cosmological parameters of the model have emerged. Many alternative models are proposed to alleviate these tensions. On the other hand, some observations of peculiar velocity show higher values than expected in a universe which may contradict the cosmological principle. In this work, we used linear perturbation theory to measure bulk flow and parameter in two alternative cosmological models and XCDM. We compared measured bulk flows with the predictions and some observations. We did a analysis to see which model is preferred by data. We find that model predicts higher bulk flows and is more consistent with observational data but does not reduce tension. bulk flows measured in the XCDM model are lower compared to . However, this model can reconcile tension.

Cites

No record.

References

No record.

Cite

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops