scholarly journals The Atacama Cosmology Telescope: Cosmology from Galaxy Clusters Detected via the Sunyaev-Zel'dovich Effect

2011 ◽  
Author(s):  
N Sehgal
Keyword(s):  
Galaxy Clusters ◽  
Atacama Cosmology Telescope ◽  
Sunyaev Zel'dovich Effect

scholarly journals THE ATACAMA COSMOLOGY TELESCOPE: DYNAMICAL MASSES AND SCALING RELATIONS FOR A SAMPLE OF MASSIVE SUNYAEV-ZEL'DOVICH EFFECT SELECTED GALAXY CLUSTERS $^,$

2013 ◽  
Vol 772 (1) ◽  
pp. 25 ◽  
Author(s):  
Cristóbal Sifón ◽  
Felipe Menanteau ◽  
Matthew Hasselfield ◽  
Tobias A. Marriage ◽  
John P. Hughes ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
Scaling Relations ◽  
Atacama Cosmology Telescope ◽  
Sunyaev Zel'dovich Effect ◽  
Dynamical Masses

scholarly journals The Atacama Cosmology Telescope: the stellar content of galaxy clusters selected using the Sunyaev–Zel'dovich effect

2013 ◽  
Vol 435 (4) ◽  
pp. 3469-3480 ◽  
Author(s):  
Matt Hilton ◽  
Matthew Hasselfield ◽  
Cristóbal Sifón ◽  
Andrew J. Baker ◽  
L. Felipe Barrientos ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
Stellar Content ◽  
Atacama Cosmology Telescope ◽  
Sunyaev Zel'dovich Effect

scholarly journals THE ATACAMA COSMOLOGY TELESCOPE: COSMOLOGY FROM GALAXY CLUSTERS DETECTED VIA THE SUNYAEV-ZEL'DOVICH EFFECT

2011 ◽  
Vol 732 (1) ◽  
pp. 44 ◽  
Author(s):  
Neelima Sehgal ◽  
Hy Trac ◽  
Viviana Acquaviva ◽  
Peter A. R. Ade ◽  
Paula Aguirre ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
Atacama Cosmology Telescope ◽  
Sunyaev Zel'dovich Effect

scholarly journals Observations of compact sources in galaxy clusters using MUSTANG2

2021 ◽  
Author(s):  
Simon R Dicker ◽  
Elia S Battistelli ◽  
Tanay Bhandarkar ◽  
Mark J Devlin ◽  
Shannon M Duff ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
Empirical Relationship ◽  
Angular Separation ◽  
Source Population ◽  
Atacama Cosmology Telescope ◽  
Compact Source ◽  
Sunyaev Zel'dovich Effect ◽  
Source Contamination ◽  
Green Bank Telescope ◽  
Compact Sources

Abstract Compact sources can cause scatter in the scaling relationships between the amplitude of the thermal Sunyaev-Zel’dovich Effect (tSZE) in galaxy clusters and cluster mass. Estimates of the importance of this scatter vary – largely due to limited data on sources in clusters at the frequencies at which tSZE cluster surveys operate. In this paper we present 90 GHz compact source measurements from a sample of 30 clusters observed using the MUSTANG2 instrument on the Green Bank Telescope. We present simulations of how a source’s flux density, spectral index, and angular separation from the cluster’s center affect the measured tSZE in clusters detected by the Atacama Cosmology Telescope (ACT). By comparing the MUSTANG2 measurements with these simulations we calibrate an empirical relationship between 1.4 GHz flux densities from radio surveys and source contamination in ACT tSZE measurements. We find 3 per cent of the ACT clusters have more than a 20 per cent decrease in Compton-y but another 3 per cent have a 10 per cent increase in the Compton-y due to the matched filters used to find clusters. As sources affect the measured tSZE signal and hence the likelihood that a cluster will be detected, testing the level of source contamination in the tSZE signal using a tSZE selected catalog is inherently biased. We confirm this by comparing the ACT tSZE catalog with optically and X-ray selected cluster catalogs. There is a strong case for a large, high resolution survey of clusters to better characterize their source population.

scholarly journals A MULTIBAND STUDY OF THE GALAXY POPULATIONS OF THE FIRST FOUR SUNYAEV-ZEL'DOVICH EFFECT SELECTED GALAXY CLUSTERS

2011 ◽  
Vol 734 (1) ◽  
pp. 3 ◽  
Author(s):  
A. Zenteno ◽  
J. Song ◽  
S. Desai ◽  
R. Armstrong ◽  
J. J. Mohr ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
The Galaxy ◽  
Sunyaev Zel'dovich Effect ◽  
Galaxy Populations

scholarly journals THE ATACAMA COSMOLOGY TELESCOPE: PHYSICAL PROPERTIES OF SUNYAEV-ZEL'DOVICH EFFECT CLUSTERS ON THE CELESTIAL EQUATOR,

2013 ◽  
Vol 765 (1) ◽  
pp. 67 ◽  
Author(s):  
Felipe Menanteau ◽  
Cristóbal Sifón ◽  
L. Felipe Barrientos ◽  
Nicholas Battaglia ◽  
J. Richard Bond ◽  
...  
Keyword(s):  
Physical Properties ◽  
Atacama Cosmology Telescope ◽  
Sunyaev Zel'dovich Effect ◽  
Celestial Equator

scholarly journals GALAXY CLUSTERS DISCOVERED VIA THE SUNYAEV-ZEL’DOVICH EFFECT IN THE FIRST 720 SQUARE DEGREES OF THE SOUTH POLE TELESCOPE SURVEY

2013 ◽  
Vol 763 (2) ◽  
pp. 127 ◽  
Author(s):  
C. L. Reichardt ◽  
B. Stalder ◽  
L. E. Bleem ◽  
T. E. Montroy ◽  
K. A. Aird ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
South Pole ◽  
The South ◽  
South Pole Telescope ◽  
Sunyaev Zel'dovich Effect

scholarly journals Scaling Relations from Sunyaev‐Zel’dovich Effect andChandraX‐Ray Measurements of High‐Redshift Galaxy Clusters

2008 ◽  
Vol 675 (1) ◽  
pp. 106-114 ◽  
Author(s):  
Massimiliano Bonamente ◽  
Marshall Joy ◽  
Samuel J. LaRoque ◽  
John E. Carlstrom ◽  
Daisuke Nagai ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
High Redshift ◽  
Scaling Relations ◽  
Redshift Galaxy ◽  
Sunyaev Zel'dovich Effect
Sign in / Sign up

Export Citation Format

Share Document