Closing the Loop: A Self-Consistent Model of Optical, X-ray, and SZ Scaling Relations for Clusters of Galaxies

Дата и время публикации : 2012-04-27T19:21:53Z

Авторы публикации и институты :
Eduardo Rozo
James G. Bartlett
August E. Evrard
Eli S. Rykoff

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: X-ray luminosity function comparison now properly marginalized over uncertainty in cosmological parameters
Первичная категория: astro-ph.CO

Все категории : astro-ph.CO

Краткий обзор статьи: We demonstrate that optical data from SDSS, X-ray data from ROSAT and Chandra, and SZ data from Planck, can be modeled in a fully self-consistent manner. After accounting for systematic errors and allowing for property covariance, we find that scaling relations derived from optical and X-ray selected cluster samples are consistent with one another. Moreover, these clusters scaling relations satisfy several non-trivial spatial abundance constraints and closure relations. Given the good agreement between optical and X-ray samples, we combine the two and derive a joint set of LX-M and YSZ-M relations. Our best fit YSZ-M relation is in good agreement with the observed amplitude of the thermal SZ power spectrum for a WMAP7 cosmology, and is consistent with the masses for the two CLASH galaxy clusters published thus far. We predict the halo masses of the remaining z leq 0.4 CLASH clusters, and use our scaling relations to compare our results with a variety of X-ray and weak lensing cluster masses from the literature.

Category: Physics