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Chandra Cluster Cosmology Project III: Cosmological Parameter Constraints
A. Vikhlinin, A. V. Kravtsov, R. A. Burenin +8
Chandra observations of large samples of galaxy clusters detected in X-rays by ROSAT provide a new, robust determination of the cluster mass functions at low and high redshifts. St…
Chandra Cluster Cosmology Project II: Samples and X-ray Data Reduction
A. Vikhlinin, R. A. Burenin, H. Ebeling +8
We discuss the measurements of the galaxy cluster mass functions at z=~0.05 and z=~0.5 using high-quality Chandra observations of samples derived from the ROSAT PSPC All-Sky and 40…
Spectroscopy and multiband photometry of the afterglow of intermediate duration gamma-ray burst 040924 and its host galaxy
K. Wiersema, A. J. van der Horst, D. A. Kann +19
We present optical photometry and spectroscopy of the afterglow and host galaxy of gamma-ray burst 040924. This GRB had a rather short duration of T90 ~2.4s, and a well sampled opt…
The 400 square degrees ROSAT PSPC galaxy cluster survey: Catalog and statistical calibration
R. A. Burenin, A. Vikhlinin, A. Hornstrup +3
We present a catalog of galaxy clusters detected in a new ROSAT PSPC survey. The survey is optimized to sample, at high redshifts, the mass range corresponding to T> keV clusters a…
INTEGRAL/SPI Limits on Electron-Positron Annihilation Radiation from the Galactic Plane
B. J. Teegarden, K. Watanabe, P. Jean +24
The center of our Galaxy is a known strong source of electron-positron 511-keV annihilation radiation. Thus far, however, there have been no reliable detections of annihilation rad…
ESO 3060170 -- a massive fossil galaxy group with a heated gas core?
M. Sun, W. Forman, A. Vikhlinin +3
We present a detailed study of the ESO 3060170 galaxy group combining Chandra, XMM and optical observations. The system is found to be a fossil galaxy group. The group X-ray emissi…