Large-Scale Distribution of Total Mass versus Luminous Matter from Baryon Acoustic Oscillations: First Search in the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey Data Release 10
View/ Open
Author
Soumagnac, M. T.
Barkana, R.
Sabiu, C. G.
Ross, A. J.
Abdalla, F. B.
Balan, S. T.
Lahav, O.
Published Version
https://doi.org/10.1103/PhysRevLett.116.201302Metadata
Show full item recordCitation
Soumagnac, M. T., R. Barkana, C. G. Sabiu, A. Loeb, A. J. Ross, F. B. Abdalla, S. T. Balan, and O. Lahav. 2016. “Large-Scale Distribution of Total Mass Versus Luminous Matter from Baryon Acoustic Oscillations: First Search in the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey Data Release 10.” Physical Review Letters 116 (20) (May 20). doi:10.1103/physrevlett.116.201302.Abstract
Baryon Acoustic Oscillations (BAOs) in the early Universe are predicted to leave an as yet undetected signature on the relative clustering of total mass versus luminous matter. A detection of this effect would provide an important confirmation of the standard cosmological paradigm and constrain alternatives to dark matter as well as non-standard fluctuations such as Compensated Isocurvature Perturbations (CIPs). We conduct the first observational search for this effect, by comparing the number-weighted and luminosity-weighted correlation functions, using the SDSS-III BOSS Data Release 10 CMASS sample. When including CIPs in our model, we formally obtain evidence at 3.2σ of the relative clustering signature and a limit that matches the existing upper limits on the amplitude of CIPs. However, various tests suggest that these results are not yet robust, perhaps due to systematic biases in the data. The method developed in this Letter, used with more accurate future data such as that from DESI, is likely to confirm or disprove our preliminary evidence.Other Sources
https://arxiv.org/pdf/1602.01839.pdfTerms of Use
This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAPCitable link to this page
http://nrs.harvard.edu/urn-3:HUL.InstRepos:32072406
Collections
- FAS Scholarly Articles [18256]
Contact administrator regarding this item (to report mistakes or request changes)