Evidence of Galaxy Cluster Motions with the Kinematic Sunyaev-Zel’dovich Effect

Дата и время публикации : 2012-03-19T19:56:35Z

Авторы публикации и институты :
Nick Hand
Graeme E. Addison
Eric Aubourg
Nick Battaglia
Elia S. Battistelli
Dmitry Bizyaev
J. Richard Bond
Howard Brewington
Jon Brinkmann
Benjamin R. Brown
Sudeep Das
Kyle S. Dawson
Mark J. Devlin
Joanna Dunkley
Rolando Dunner
Daniel J. Eisenstein
Joseph W. Fowler
Megan B. Gralla
Amir Hajian
Mark Halpern
Matt Hilton
Adam D. Hincks
Renee Hlozek
John P. Hughes
Leopoldo Infante
Kent D. Irwin
Arthur Kosowsky
Yen-Ting Lin
Elena Malanushenko
Viktor Malanushenko
Tobias A. Marriage
Danica Marsden
Felipe Menanteau
Kavilan Moodley
Michael D. Niemack
Michael R. Nolta
Daniel Oravetz
Lyman A. Page
Nathalie Palanque-Delabrouille
Kaike Pan
Erik D. Reese
David J. Schlegel
Donald P. Schneider
Neelima Sehgal
Alaina Shelden
Jon Sievers
Cristobal Sifon
Audrey Simmons
Stephanie Snedden
David N. Spergel
Suzanne T. Staggs
Daniel S. Swetz
Eric R. Switzer
Hy Trac
Benjamin A. Weaver
Edward J. Wollack
Christophe Yeche
Caroline Zunckel

Ссылка на журнал-издание: Phys. Rev. Lett. 109, 041101 (2012)
Коментарии к cтатье: 6 pages, 1 figure. Updated version matches published paper. Updated analysis, with slightly different figure than the first version
Первичная категория: astro-ph.CO

Все категории : astro-ph.CO

Краткий обзор статьи: Using high-resolution microwave sky maps made by the Atacama Cosmology Telescope, we for the first time present strong evidence for motions of galaxy clusters and groups via microwave background temperature distortions due to the kinematic Sunyaev-Zel’dovich effect. Galaxy clusters are identified by their constituent luminous galaxies observed by the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey III. We measure the mean pairwise momentum of clusters, with a probability of the signal being due to random errors of 0.002, and the signal is consistent with the growth of cosmic structure in the standard model of cosmology.

Category: Physics