Carlos Hernández-Monteagudo
Evidence of the Missing Baryons from the Kinematic Sunyaev-Zeldovich Effect in Planck Data
Hernández-Monteagudo, Carlos; Ma, Yin-Zhe; Kitaura, Francisco S.; Wang, Wenting; Génova-Santos, Ricardo; Macías-Pérez, Juan; Herranz, Diego
Authors
Yin-Zhe Ma
Francisco S. Kitaura
Wenting Wang
Ricardo Génova-Santos
Juan Macías-Pérez
Diego Herranz
Abstract
We estimate the amount of the missing baryons detected by the Planck measurements of the cosmic microwave background in the direction of central galaxies (CGs) identified in the Sloan galaxy survey. The peculiar motion of the gas inside and around the CGs unveils values of the Thomson optical depth τT in the range 0.2–2 × 10−4, indicating that the regions probed around CGs contain roughly half of the total amount of baryons in the Universe at the epoch where the CGs are found. If baryons follow dark matter, the measured τT’s are compatible with the detection of all of the baryons existing inside and around the CGs.
Citation
Hernández-Monteagudo, C., Ma, Y., Kitaura, F. S., Wang, W., Génova-Santos, R., Macías-Pérez, J., & Herranz, D. (2015). Evidence of the Missing Baryons from the Kinematic Sunyaev-Zeldovich Effect in Planck Data. Physical Review Letters, 115(19), Article 191301. https://doi.org/10.1103/physrevlett.115.191301
Journal Article Type | Article |
---|---|
Online Publication Date | Nov 3, 2015 |
Publication Date | Nov 3, 2015 |
Deposit Date | Feb 9, 2016 |
Publicly Available Date | Jul 28, 2016 |
Journal | Physical Review Letters |
Print ISSN | 0031-9007 |
Electronic ISSN | 1079-7114 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 115 |
Issue | 19 |
Article Number | 191301 |
DOI | https://doi.org/10.1103/physrevlett.115.191301 |
Public URL | https://durham-repository.worktribe.com/output/1389241 |
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Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review Letters 115, 191301 © (2015) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
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