Výsledky vyhledávání - "Osborne, S. J."

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Extragalactic Foreground Contamination in Temperature-based CMB Lens Reconstruction

Autor: Osborne, S. J., Hanson, D., Doré, O.

We discuss the effect of unresolved point source contamination on estimates of the CMB lensing potential, from components such as the thermal Sunyaev-Zel'dovich effect, radio point sources, and the Cosmic Infrared Background. We classify the possible

Externí odkaz: http://arxiv.org/abs/1310.7547

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Measuring Bulk Flow of Galaxy Clusters using Kinematic Sunyaev-Zel'dovich effect: Prediction for Planck

Autor: Mak, D. S. Y., Pierpaoli, E., Osborne, S. J.

Publikováno v: 2011 ApJ, 736, 116

We predict the performance of the Planck satellite in determining the bulk flow through kinetic Sunyaev-Zeldovich (kSZ) measurements. As velocity tracers, we use ROSAT All-Sky Survey (RASS) clusters as well as expected cluster catalogs from the upcom

Externí odkaz: http://arxiv.org/abs/1101.1581

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Measuring the Galaxy Cluster Bulk Flow from WMAP data

Autor: Osborne, S. J., Mak, D. S. Y., Church, S. E., Pierpaoli, E.

We have looked for bulk motions of galaxy clusters in the WMAP~7 year data. We isolate the kinetic Sunyaev-Zeldovich (SZ) signal by filtering the WMAP Q, V and W band maps with multi-frequency matched filters, that utilize the spatial properties of t

Externí odkaz: http://arxiv.org/abs/1011.2781

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