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37 papers · 2 filters
Accurate Realizations of the Ionized Gas in Galaxy Clusters: Calibrating Feedback
Paul Bode, Jeremiah P. Ostriker, Jochen Weller +1
Using the full, three-dimensional potential of galaxy cluster halos (drawn from an N-body simulation of the current, most favored cosmology), the distribution of the X-ray emitting…
Observations of the Unidentified TeV Gamma-Ray Source TeV J2032+4130 with the Whipple Observatory 10 m Telescope
A. Konopelko, R. W. Atkins, G. Blaylock +58
We report on observations of the sky region around the unidentified TeV gamma-ray source TeV J2032+4130 carried out with the Whipple Observatory 10 m atmospheric Cherenkov telescop…
The prospects for X-ray polarimetry and its potential use for understanding neutron stars
M. C. Weisskopf, R. F. Elsner, D. Hanna +4
We review the state of the art for measuring the X-ray polarization of neutron stars. We discuss how valuable precision measurements of the degree and position angle of polarizatio…
The first multi-wavelength campaign of AXP 4U 0142+61 from radio to hard X-rays
P. R. den Hartog, L. Kuiper, W. Hermsen +5
For the first time a quasi-simultaneous multi-wavelength campaign has been performed on an Anomalous X-ray Pulsar from the radio to the hard X-ray band. 4U 0142+61 was an INTEGRAL…
Nongaussianity from Tachyonic Preheating in Hybrid Inflation
Neil Barnaby, James M. Cline
In a previous work we showed that large nongaussianities and nonscale-invariant distortions in the CMB power spectrum can be generated in hybrid inflation models, due to the contri…
A New Population of High Redshift Short-Duration Gamma-Ray Bursts
E. Berger, D. B. Fox, P. A. Price +23
The redshift distribution of the short-duration GRBs is a crucial, but currently fragmentary, clue to the nature of their progenitors. Here we present optical observations of nine…