Simulating the Universe: Large Area Synthetic Galaxy Cluster Surveys

Details Simulating the Universe: Large Area Synthetic Galaxy Cluster Surveys Simulating the Universe: Large Area Synthetic Galaxy Cluster Surveys

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20918004h&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #180.04; Bulletin of the American Astronomical Society,

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We show results from a synthetic Sunyaev-Zeldovich effect (SZE) galaxy cluster survey generated from a very large adaptive mesh refinement cosmological calculation performed with the Enzo code. This calculation simulates a (512h-1Mpc)3 comoving volume with 5123 root grid zones and 7 levels of dynamic refinement. The simulated volume and grid resolution enables SZE, X-ray and weak lensing synthetic surveys with both large sky coverage ( 100 deg2), and high angular resolution (5-10''). We present expected cluster survey yields for upcoming SZE sky surveys, including estimates of selection effects due to finite beam size and sensitivity limits. The significant new result from this simulation is that fully half the SZE flux in the survey images comes from objects with M < 5.0x 1013Msolar and filamentary structures made up of gas in the Warm Hot Intergalactic Medium (WHIM) phase.

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