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arXiv · 1501.00187

Galaxy Cluster Pressure Profiles as Determined by Sunyaev Zel'dovich Effect Observations with MUSTANG and Bolocam I: Joint Analysis Technique

Charles Romero·Brian S. Mason·Jack Sayers·Alexander H. Young·Tony Mroczkowski·Tracy E. Clarke·Craig Sarazin·Jonathon Sievers·Simon R. Dicker·Erik D. Reese·Nicole Czakon·Mark Devlin·Phillip M. Korngut·Sunil Golwala
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Abstract

We present a technique to constrain galaxy cluster pressure profiles by jointly fitting Sunyaev-Zel'dovich effect (SZE) data obtained with MUSTANG and Bolocam for the clusters Abell 1835 and MACS0647. Bolocam and MUSTANG probe different angular scales and are thus highly complementary. We find that the addition of the high resolution MUSTANG data can improve constraints on pressure profile parameters relative to those derived solely from Bolocam. In Abell 1835 and MACS0647, we find gNFW inner slopes of $γ= 0.36_{-0.21}^{+0.33}$ and $γ= 0.38_{-0.25}^{+0.20}$, respectively when $α$ and $β$ are constrained to 0.86 and 4.67 respectively. The fitted SZE pressure profiles are in good agreement with X-ray derived pressure profiles.

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Charles Romero, Brian S. Mason, Jack Sayers, Alexander H. Young, Tony Mroczkowski, Tracy E. Clarke, Craig Sarazin, Jonathon Sievers, Simon R. Dicker, Erik D. Reese, Nicole Czakon, Mark Devlin, Phillip M. Korngut, Sunil Golwala. 2015-04-10. Galaxy Cluster Pressure Profiles as Determined by Sunyaev Zel'dovich Effect Observations with MUSTANG and Bolocam I: Joint Analysis Technique. https://doi.org/10.1088/0004-637x%2F807%2F2%2F121

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