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Evidence of the Missing Baryons from the Kinematic Sunyaev-Zeldovich Effect in Planck Data

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 tT 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 tT’s are compatible with the detection of all of the baryons existing inside and around the CGs

 Fuente: Phys. Rev. Lett. Vol. 115, Num. 19, Pag. 191301 (2015)

 Editorial: American Physical Society

 Fecha de publicación: 01/11/2015

 Nº de páginas: 5

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.115.191301

 ISSN: 0031-9007,1079-7114

 Url de la publicación: https://doi.org/10.1103/PhysRevLett.115.191301

Autoría

HERNÁNDEZ-MONTEAGUDO, CARLOS

MA, YIN-ZE

KITAURA, FRANCISCO S.

WANG, WENTING

GÉNOVA-SANTOS, RICARDO

MACÍAS-PÉREZ, JUAN