Creator | Title | Description | Subject | Date | ||
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1 |
![]() | Dawson, Kyle | Masses of high-redshift clusters via SZ effect observations | We present Sunyaev-Zel'dovich Effect (SZE) observations of distant, highly X-ray luminous clusters of galaxies. We use the SZE data to constrain their total masses, independent of X-ray observations. To do this, we assume the clusters have the same gas mass fraction as that derived from SZE measure... | Sunyaev-Zel'dovich Effect; X-rays; Redshift | 2002 |
2 |
![]() | Dawson, Kyle | Multi-wavelength study of XMMU J2235.3-2557: the most massive galaxy cluster at z > 1 | The galaxy cluster XMMU J2235.3−2557 (hereafter XMM2235), spectroscopically confirmed at z = 1.39, is one of the most distant X-ray selected galaxy clusters. It has been at the center of a multi-wavelength observing campaign with ground and space facilities. Aims. We characterize the galaxy popula... | XMMU J2235.3-2557; XMM2235; X-rays; Redshift | 2009-12 |
3 |
![]() | Dawson, Kyle | Multiwavelength observations of a rich galaxy cluster at z ~ 1: the HST/ACS colour-magnitude diagram | XMMU J1229+0151 is a rich galaxy cluster with redshift z = 0.975 that was serendipitously detected in X-rays within the scope of the XMM-Newton Distant Cluster Project. Both HST/ACS observations in the i775 and z850 passbands and VLT/FORS2 spectroscopy were obtained, in addition to follow-up Near-In... | Passive galaxies; Redshift | 2009-07 |