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
14 papers · 2 filters
An X-ray View of Star Formation in the Central 3 kpc of NGC 2403
Mihoko Yukita, Douglas A. Swartz, Allyn F. Tennant +1
Archival Chandra observations are used to study the X-ray emission associated with star formation in the central region of the nearby SAB(s)cd galaxy NGC 2403. The distribution of…
The Spectral Energy Distribution of Fermi bright blazars
A. A. Abdo, M. Ackermann, M. Ajello +107
(Abridged) We have conducted a detailed investigation of the broad-band spectral properties of the γ-ray selected blazars of the Fermi LAT Bright AGN Sample (LBAS). By combining ou…
Discovery of very high energy gamma rays from PKS 1424+240 and multiwavelength constraints on its redshift
The VERITAS Collaboration, V. A. Acciari, The Fermi Collaboration +4
We report the first detection of very-high-energy (VHE) gamma-ray emission above 140 GeV from PKS 1424+240, a BL Lac object with an unknown redshift. The photon spectrum above 140…
Constraints on Cosmological Models and Reconstructing the Acceleration History of the Universe with Gamma-Ray Burst Distance Indicators
Nan Liang, Puxun Wu, Shuang Nan Zhang
Gamma-ray bursts (GRBs) have been regarded as standard candles at very high redshift for cosmology research. We have proposed a new method to calibrate GRB distance indicators with…
An Analytic Model of the Physical Properties of Galaxy Clusters
G. Esra Bulbul, Nicole Hasler, Massimiliano Bonamente +1
We introduce an analytic model of the diffuse intergalactic medium in galaxy clusters based on a polytropic equation of state for the gas in hydrostatic equilibrium with the cluste…
Fossil Galaxy Groups -- Ideal Laboratories for Studying the Effects of AGN Heating
Nazirah N. Jetha, Habib Khosroshahi, Somak Raychaudhury +2
We present the first of a sample of fossil galaxy groups with pre-existing Chandra and/or XMM-Newton X-ray observations and new or forthcoming low frequency GMRT data -- RXJ1416.4+…
LoCuSS: A Comparison of Sunyaev-Zel'dovich Effect and Gravitational Lensing Measurements of Galaxy Clusters
Daniel P. Marrone, Graham P. Smith, Johan Richard +19
We present the first measurement of the relationship between the Sunyaev-Zel'dovich effect signal and the mass of galaxy clusters that uses gravitational lensing to measure cluster…
The mass function of nearby black hole candidates
Laurentiu I. Caramete, Peter L. Biermann
The mass function of super-massive black holes in our cosmic neighborhood is required to understand the statistics of their activity and consequently the origin of the ultra high e…
Dark matter and Modified Newtonian Dynamics in a sample of high-redshift galaxy clusters observed with Chandra
Carl Blaksley, Massimiliano Bonamente
We compare the measurement of the gravitational mass of 38 high-redshift galaxy clusters observed by Chandra using Modified Newtonian Dynamics (MOND) and standard Newtonian gravity…
Inverse volume corrections to emergent tachyonic inflation in loop quantum cosmology
Puxun Wu, Shuang Nan Zhang, Hongwei Yu
The emergent model in the context of loop quantum cosmology with a tachyon scalar field is studied. We find that there is a center equilibrium point in the semiclassical region and…
The age problem in CDM model
Rong-Jia Yang, Shuang Nan Zhang
The age problem in the CDM model is re-examined. We define the elapsed time of an object is its age plus the age of the Universe when it was born. Therefore in any cosmology…
Significant foreground unrelated non-acoustic anisotropy on the one degree scale in WMAP 5-year observations
Bi-Zhu Jiang, Richard Lieu, Shuang-Nan Zhang +1
The spectral variation of the cosmic microwave background (CMB) as observed by WMAP was tested using foreground reduced WMAP5 data, by producing subtraction maps at the 1 a…
The diffuse soft excess emission in the Coma cluster from the ROSAT All-Sky Survey
Max Bonamente, Richard Lieu, Esra Bulbul
RASS data near the North Galactic Pole was analyzed in order to study the large-scale distribution of soft X-ray emission from the Coma cluster. These RASS data constitute the only…
Soft X-ray excess of clusters: a thermal filament model, and the strong lensing of background galaxy groups
Richard Lieu, Max Bonamente
The observational and theoretical status of the search for missing cosmological baryons is summarized, with a discussion of some indirect methods of detection. The thermal interpre…