Monday, March 05, 2007


Russell et al. use MCMC to do a joint analysis of Chandra and ROSAT data on the cool core group NGC 4325.

Holder et al. estimate the SZ background and consider the limits on SZ cluster measurements due to confusion effects.

Zhang et al. look at the X-ray properties and scaling relations for 12 z~0.2 clusters observed by XMM-Newton and note that if the central cores are excluded then normalizations agree to 10% irrespective of cluster morphology.

Chartas et al. analyze Chandra and XMM observations of the gravitationally lensed low ionization broad absorption line quasar H1413+117 and detect emission lines.

Fujita et al. look at MHD Alfven waves as a heating method for cool cores in clusters and note that they would also create longitudinal (sound) waves observable as ripples.

Bogdanovic et al. argue that torques during galaxy mergers will tend to align the spins of their MBHs thus reducing gravitational radiation kicks when the MBHs merge.

Ciotti & Ostriker perform high-res hydro simulations with photoionization and Compton heating to investigate the effects of an AGN on the ISM of an isolated early type galaxy.

Trotta presents a new procedure for estimating the Bayes factor of future observation to help with experiment design.

Scharf considers the effects of parallax on exoplanet timing measurements.

Giommi et al. use Swift to measure the X-ray fluxes of blazars which are CMB foreground sources and show that there is a tight correlation between X-ray and microwave fluxes.

Maughan et al. present a summary of the analysis of ACIS-I observations of 116 clusters from z of 0.1 to 1.3.

The HiRes Collaboration detect the GZK cut-off at 6e19 eV, precisely as predicted.

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