14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Goddard Space Flight CenterUS361 papers
- Marshall Space Flight CenterUS357 papers
- Centre National de la Recherche ScientifiqueFR280 papers
- Max Planck Institute for Extraterrestrial PhysicsDE240 papers
- University of Maryland, College ParkUS239 papers
- Universities Space Research AssociationUS214 papers
- Stanford UniversityUS212 papers
- National Institute for AstrophysicsIT196 papers
- University of Rome Tor VergataIT184 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR179 papers
- University of PaduaIT178 papers
- Istituto Nazionale di Fisica Nucleare, Roma Tor VergataIT175 papers
17 papers · 1 filter
First Terrestrial Soft X-ray Auroral Observation by The Chandra X-ray Observatory
Anil Bhardwaj, G. Randall Gladstone, Ronald F. Elsner +6
Northern auroral regions of Earth were imaged with energetic photons in the 0.1-10 keV range using the High-Resolution Camera (HRC-I) aboard the Chandra X-ray Observatory at 10 epo…
Relativistic effects on the observed AGN luminosity distribution
Yuan Liu, Shuang Nan Zhang, Xiao Ling Zhang
Recently Zhang (2005) has proposed a model to account for the well established effect that the fraction of type-II AGNs is anti-correlated with the observed X-ray luminosity; the m…
Reconstruction of Hessence Dark Energy and the Latest Type Ia Supernovae Gold Dataset
Hao Wei, Ningning Tang, Shuang Nan Zhang
Recently, many efforts have been made to build dark energy models whose equation-of-state parameter can cross the so-called phantom divide . One of them is the so-called…
Genus Topology of the Cosmic Microwave Background from the WMAP 3-Year Data
J. Richard Gott, Wesley N. Colley, Chan-Gyung Park +2
We have independently measured the genus topology of the temperature fluctuations in the cosmic microwave background seen in the Wilkinson Microwave Anisotropy Probe (WMAP) 3-year…
Revisiting the soft X-ray excess emission in clusters of galaxies observed with XMM-Newton
J. Nevalainen, M. Bonamente, J. Kaastra
We analyze four XMM-Newton galaxy clusters in order to test whether their soft X-ray excess emission in the 0.2-0.5 keV band as reported by Kaastra et al. (2003) maintains after th…
Observational Data and Cosmological Models
Hao Wei, Shuang Nan Zhang
In this work, we confront ten cosmological models with observational data. The possible interaction between dark energy and dust matter is allowed in some of these models. A…
RAISHIN: A High-Resolution Three-Dimensional General Relativistic Magnetohydrodynamics Code
Yosuke Mizuno, Ken-Ichi Nishikawa, Shinji Koide +2
We have developed a new three-dimensional general relativistic magnetohydrodynamic (GRMHD) code, RAISHIN, using a conservative, high resolution shock-capturing scheme. The numerica…
Time delay by primordial density fluctuations: its biasing effect on the observed mean curvature of the Universe
Richard Lieu, Jonathan P. D. Mittaz
In this paper we specifically studied one aspect of foreground primordial matter density perturbations: the relative gravitational time delay between a pair of light paths convergi…
Radio Sources Toward Galaxy Clusters at 30 GHz
K. Coble, M. Bonamente, J. E. Carlstrom +7
Extra-galactic radio sources are a significant contaminant in cosmic microwave background and Sunyaev-Zel'dovich effect experiments. Deep interferometric observations with the BIMA…
Towards a novel wave-extraction method for numerical relativity
Andrea Nerozzi, Marco Bruni, Lior M. Burko +1
We present the recent results of a research project aimed at constructing a robust wave extraction technique for numerical relativity. Our procedure makes use of Weyl scalars to ac…
Propeller driven spectral state transition in LMXB 4U 1608-52
Xie Chen, Shuang Nan Zhang, Guo Qiang Ding
Spectral state transitions in neutron star LMXB systems have been widely observed yet not well understood. Here we report an abrupt spectral change in 4U 1608-52, a typical atoll s…
Non-thermal intracluster medium: a simultaneous interpretation of the central soft X-ray excess and WMAP's detection of reduced Sunyaev-Zel'dovich Effect
R. Lieu, J. J. Quenby, M. Bonamente
WMAP's detection of the Sunyaev-Zel'dovich effect at a much reduced level among several large samples of rich clusters is interpreted in terms of conventional physics. It has been…
Time lag between prompt optical emission and gamma-rays in GRBs
Su Min Tang, Shuang Nan Zhang
The prompt optical emission contemporaneous with the -rays from -ray bursts (GRBs) carries important information on the central engine and explosion mechanism. We study the t…
Stellar Properties of Embedded Protostars
R. J. White, T. P. Greene, G. W. Doppmann +2
(Abridged) High dispersion spectrographs on large aperture telescopes have recently allowed observers to study the stellar and accretion properties of deeply embedded young stars,…
X-ray and Sunyaev-Zel'dovich Effect Measurements of the Gas Mass Fraction in Galaxy Clusters
S. LaRoque, M. Bonamente, J. Carlstrom +4
We present gas mass fractions of 38 massive galaxy clusters spanning redshifts from 0.14 to 0.89, derived from Chandra X-ray data and OVRO/BIMA interferometric Sunyaev-Zel'dovich E…
Observations of the intense and ultra-long burst GRB041219a with the Germanium Spectrometer on INTEGRAL
S. McBreen, L. Hanlon, S. McGlynn +5
GRB041219a is the brightest burst localised by INTEGRAL. The intense burst occurred about ~250s after the precursor and the long delay enabled optical and near infrared telescopes…
Chemical evolution in Sersic 159-03 observed with XMM-Newton
J. de Plaa, N. Werner, A. M. Bykov +6
Using a new long X-ray observation of the cluster of galaxies Sersic 159-03 with XMM-Newton, we derive radial temperature and abundance profiles using single- and multi-temperature…