Wednesday, April 04, 2007


Evans et al. describe the on-line database of Swift GRB lightcurves.

Tombesi et al. find a variable redshifted Fe K line with a modulation timescale of 27 ksec using XMM observations of NGC3783.

Bonavita & Desidera note from a literature search that there appears to be no difference between planet detection rates in single and binary star systems.

Migliori et al. analyze XMM observations of the radio lobes of Pictor A and finds that the particle energy is above the equipartition value and that spacial changes in radio flux are due to magnetic field variation.

Zhang et al. discuss how to test standard gravity on cosmological scales by comparing matter overdensity to gravitational lensing.

Kurucz argues that the exoplanets detected so far are "cryptoplanets" formed from matter ejected by protostars.

Bryan et al. (the CMU astrostatisticians) present a new method to determine multidimensional confidence intervals and apply it to the cosmological data.

Porter & Ferland discuss the addition of He I like lines to Cloudy and their use for diagnostics.

Afshordi considers the accuracy of mass estimates from SZ surveys of clusters.

Erickcek et al. note that the X-ray quantum calorimeter (XQC) rocket flight can be used to place strong constraints on interaction cross-sections between baryons and dark matter.

Rudnick et al. point out that the WMAP cold-spot corresponds to a dip in the number counts of NVSS sources. If this is Sachs-Wolfe effect it would require a void of radius 140 Mpc.

Werner et al. analyze XMM and Suzaku observations of Sersic 159-03 and find a central soft excess but no evidence for lines ruling out thermal sources.

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