Abstract
We perform a joint analysis of X-ray and Sunyaev-Zel'dovich effect data using an analytic model that describes the gas properties of galaxy clusters. The joint analysis allows the measurement of the cluster gas mass fraction profile and Hubble constant independent of cosmological parameters. Weak cosmological priors are used to calculate the overdensity radius within which the gas mass fractions are reported. Such an analysis can provide direct constraints on the evolution of the cluster gas mass fraction with redshift. We validate the model and the joint analysis on high signal-to-noise data from the Chandra X-ray Observatory and the Sunyaev-Zel'dovich Array for two clusters, A2631 and A2204.
| Original language | English (US) |
|---|---|
| Article number | 113 |
| Journal | Astrophysical Journal |
| Volume | 748 |
| Issue number | 2 |
| DOIs | |
| State | Published - Apr 1 2012 |
| Externally published | Yes |
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Keywords
- X-rays: galaxies: clusters
- X-rays: individuals (A2204, A2631)
ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics
Cite this
Joint analysis of X-ray and Sunyaev-Zel'dovich observations of galaxy clusters using an analytic model of the intracluster medium. / Hasler, Nicole; Bulbul, Esra; Bonamente, Massimiliano; Carlstrom, John E.; Culverhouse, Thomas L.; Gralla, Megan; Greer, Christopher; Hawkins, David; Hennessy, Ryan; Joy, Marshall; Kolodziejczak, Jeffery; Lamb, James W.; Landry, David; Leitch, Erik M.; Mantz, Adam; Marrone, Daniel P; Miller, Amber; Mroczkowski, Tony; Muchovej, Stephen; Plagge, Thomas; Pryke, Clem; Woody, David.
In: Astrophysical Journal, Vol. 748, No. 2, 113, 01.04.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Joint analysis of X-ray and Sunyaev-Zel'dovich observations of galaxy clusters using an analytic model of the intracluster medium
AU - Hasler, Nicole
AU - Bulbul, Esra
AU - Bonamente, Massimiliano
AU - Carlstrom, John E.
AU - Culverhouse, Thomas L.
AU - Gralla, Megan
AU - Greer, Christopher
AU - Hawkins, David
AU - Hennessy, Ryan
AU - Joy, Marshall
AU - Kolodziejczak, Jeffery
AU - Lamb, James W.
AU - Landry, David
AU - Leitch, Erik M.
AU - Mantz, Adam
AU - Marrone, Daniel P
AU - Miller, Amber
AU - Mroczkowski, Tony
AU - Muchovej, Stephen
AU - Plagge, Thomas
AU - Pryke, Clem
AU - Woody, David
PY - 2012/4/1
Y1 - 2012/4/1
N2 - We perform a joint analysis of X-ray and Sunyaev-Zel'dovich effect data using an analytic model that describes the gas properties of galaxy clusters. The joint analysis allows the measurement of the cluster gas mass fraction profile and Hubble constant independent of cosmological parameters. Weak cosmological priors are used to calculate the overdensity radius within which the gas mass fractions are reported. Such an analysis can provide direct constraints on the evolution of the cluster gas mass fraction with redshift. We validate the model and the joint analysis on high signal-to-noise data from the Chandra X-ray Observatory and the Sunyaev-Zel'dovich Array for two clusters, A2631 and A2204.
AB - We perform a joint analysis of X-ray and Sunyaev-Zel'dovich effect data using an analytic model that describes the gas properties of galaxy clusters. The joint analysis allows the measurement of the cluster gas mass fraction profile and Hubble constant independent of cosmological parameters. Weak cosmological priors are used to calculate the overdensity radius within which the gas mass fractions are reported. Such an analysis can provide direct constraints on the evolution of the cluster gas mass fraction with redshift. We validate the model and the joint analysis on high signal-to-noise data from the Chandra X-ray Observatory and the Sunyaev-Zel'dovich Array for two clusters, A2631 and A2204.
KW - X-rays: galaxies: clusters
KW - X-rays: individuals (A2204, A2631)
UR - http://www.scopus.com/inward/record.url?scp=84858786193&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858786193&partnerID=8YFLogxK
U2 - 10.1088/0004-637X/748/2/113
DO - 10.1088/0004-637X/748/2/113
M3 - Article
AN - SCOPUS:84858786193
VL - 748
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
M1 - 113
ER -