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- Goddard Space Flight CenterUS454 papers
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32 papers · 2 filters
A Non-Triggered Burst Supplement to the BATSE Gamma-Ray Burst Catalogs
J. M. Kommers, W. H. G. Lewin, C. Kouveliotou +4
The Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory detected gamma-ray bursts (GRBs) with a real-time burst detection (or "trigger") system runni…
Properties of the Chandra Sources in M81
Allyn F. Tennant, Kinwah Wu, Kajal K. Ghosh +2
The Chandra X-ray Observatory obtained a 50-ks observation of the central region of M81 using the ACIS-S in imaging mode. The global properties of the 97 x-ray sources detected in…
Are There ADAFs in Nearby Giant Elliptical Galaxies?
Martin E. Sulkanen, Joel N. Bregman
Recently it has been suggested that the hard x-ray power-law tails exhibited in the ASCA spectra of several nearby giant elliptical galaxies are caused by low-radiative efficiency…
A Preliminary Detection of Arcminute Scale Cosmic Microwave Background Anisotropy with the BIMA Array
K. S. Dawson, W. L Holzapfel, J. E. Carlstrom +3
We have used the Berkeley-Illinois-Maryland-Association (BIMA) array outfitted with sensitive cm-wave receivers to expand our search for arcminute scale anisotropy of the Cosmic Mi…
Galaxy Cluster Gas Mass Fractions from Sunyaev-Zel'dovich Effect Measurements: Constraints on Omega_M
Laura Grego, John E. Carlstrom, Erik D. Reese +5
Using sensitive centimeter-wave receivers mounted on the Owens Valley Radio Observatory and Berkeley-Illinois-Maryland-Association millimeter arrays, we have obtained interferometr…
First Intrinsic Anisotropy Observations with the Cosmic Background Imager
S. Padin, J. K. Cartwright, B. S. Mason +12
We present the first results of observations of the intrinsic anisotropy of the cosmic microwave background radiation with the Cosmic Background Imager from a site at 5080 m altitu…