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Star Formation in the XMMU J2235.3-2557 Galaxy Cluster at z=1.39
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/27
We present the first results of a narrow-band photometric study of the massive galaxy cluster XMMU J2235.3-2557 at z=1.39. We obtained deep $H$ narrow-band imaging with NIRI on Gemini North, correspon...
Contamination of the Central Sunyaev--Zel'dovich Decrements in AMiBA Galaxy Cluster Observations
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/23
We investigate the contamination of the Sunyaev--Zel'dovich (SZ) effect for six galaxy clusters, A1689, A1995, A2142, A2163, A2261, and A2390, observed by the Y. T. Lee Array for Microwave Background ...
An X-ray Selected Galaxy Cluster in the Lockman Hole at Redshift 1.753
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/24
We have discovered an X-ray selected galaxy cluster with a spectroscopic redshift of 1.753. The redshift is of the brightest cluster galaxy (BCG), which is coincident with the peak of the X-ray surfac...