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
20 papers · 2 filters
Active Galactic Nuclei: Sources for ultra high energy cosmic rays?
P. L. Biermann, J. K. Becker, L. Caramete +11
The origin of ultra high energy cosmic rays promises to lead us to a deeper understanding of the structure of matter. This is possible through the study of particle collisions at c…
Ground-based calibration and characterization of the Fermi Gamma-Ray Burst Monitor Detectors
Elisabetta Bissaldi, Andreas von Kienlin, Giselher G. Lichti +18
One of the scientific objectives of NASA's Fermi Gamma-ray Space Telescope is the study of Gamma-Ray Bursts (GRBs). The Fermi Gamma-Ray Burst Monitor (GBM) was designed to detect a…
Evolution of Anemone AR NOAA 10798 and the Related Geo-Effective Flares and CMEs
Ayumi Asai, Kazunari Shibata, Takako T. Ishii +4
We present a detailed examination of the features of the Active Region (AR) NOAA 10798. This AR generated coronal mass ejections (CMEs) that caused a large geomagnetic storm on 24…
Black hole quasinormal mode spectroscopy with LISA
Manish M. Jadhav, Lior M. Burko
The signal-to-noise ratio (SNR) for black hole quasinormal mode sources of low-frequency gravitational waves is estimated using a Monte Carlo approach that replaces the all-sky ave…
The Heliosphere in Time
H. -R. Müller, P. C. Frisch, B. D. Fields +1
Because of the dynamic nature of the interstellar medium, the Sun should have encountered a variety of different interstellar environments in its lifetime. As the solar wind intera…
No observational constraints from hypothetical collisions of hypothetical dark halo primordial black holes with galactic objects
Marek A. Abramowicz, Julia K. Becker, Peter L. Biermann +3
It was suggested by several authors that hypothetical primordial black holes (PBHs) may contribute to the dark matter in our Galaxy. There are strong constraints based on the Hawki…
A Study of the X-Ray Dust Scattering Halo of Cyg X-1 with a Cross-Correlation Method
Zhixing Ling, Shuang Nan Zhang, Jingen Xiang +1
X-ray photons scattered by the interstellar medium carry information about dust distribution, dust grain model, scattering cross section, and the distance of the source; they also…
Application of a Self-Similar Pressure Profile to Sunyaev-Zel'dovich Effect Data from Galaxy Clusters
T. Mroczkowski, M. Bonamente, J. E. Carlstrom +16
We investigate the utility of a new, self-similar pressure profile for fitting Sunyaev-Zel'dovich (SZ) effect observations of galaxy clusters. Current SZ imaging instruments - such…
Reconstructing the Cosmic Expansion History up to Redshift z=6.29 with the Calibrated Gamma-Ray Bursts
Hao Wei, Shuang Nan Zhang
Recently, Gamma-Ray Bursts (GRBs) were proposed to be a complementary cosmological probe to type Ia supernovae (SNIa). GRBs have been advocated to be standard candles since several…
Magnetic Reconnection by a Self-Retreating X-Line
M. Oka, M. Fujimoto, T. K. M. Nakamura +2
Particle-in-cell (PIC) simulations of collisionless magnetic reconnection are performed to study asymmetric reconnection in which an outflow is blocked by a hard wall while leaving…
T-Lyr1-17236: A Long-Period Low-Mass Eclipsing Binary
Jonathan Devor, David Charbonneau, Guillermo Torres +8
We describe the discovery of a 0.68+0.52 solar mass eclipsing binary (EB) with an 8.4-day orbital period, found through a systematic search of ten fields of the Trans-atlantic Exop…
Evidence for an intermediate line region in AGN's inner torus region and its evolution from narrow to broad line Seyfert I galaxies
Ling Zhu, Shuang Nan Zhang, Sumin Tang
A two-components model for Broad Line Region (BLR) of Active Galactic Nuclei (AGN) has been suggested for many years but not widely accepted (e.g., Hu et al. 2008; Sulentic et al.…
Cosmological evolution of interacting phantom (quintessence) model in Loop Quantum Gravity
Puxun Wu, Shuang Nan Zhang
The dynamics of interacting dark energy model in loop quantum cosmology (LQC) is studied in this paper. The dark energy has a constant equation of state and interacts with da…
Swift XRT Observations of the Possible Dark Galaxy VIRGOHI 21
Massimiliano Bonamente, Douglas Swartz, Martin Weisskopf +1
\swift \xrt observations of the \hi line source \VV were performed on April 22 and April 26, 2008 for a total exposure time of 9.2ks. This is the first pointed X-ray observation of…
Neutrinos from active black holes, sources of ultra high energy cosmic rays
Julia K. Becker, Peter L. Biermann
A correlation between the highest energy Cosmic Rays (above ~ EeV) and the distribution of active galactic nuclei (AGN) gives rise to a prediction of neutrino production in the sam…
A Spectroscopic Binary at the M/L Transition
Cullen H. Blake, David Charbonneau, Russel J. White +3
We report the discovery of a single-lined spectroscopic binary with an Ultra Cool Dwarf (UCD) primary with a spectral type between M8 and L0.5. This system was discovered during th…
How to Distinguish Dark Energy and Modified Gravity?
Hao Wei, Shuang Nan Zhang
The current accelerated expansion of our universe could be due to an unknown energy component (dark energy) or a modification to general relativity (modified gravity). In the liter…
Constraints on the generalized tachyon field models from latest observational data
Rong-Jia Yang, Shuang Nan Zhang, Yuan Liu
We consider constraints on generalized tachyon field (GTF) models from latest observational data (including 182 gold SNIa data, the shift parameter, and the acoustic scale). We obt…
A Cosmology-Independent Calibration of Gamma-Ray Burst Luminosity Relations and the Hubble Diagram
Nan Liang, Wei Ke Xiao, Yuan Liu +1
An important concern in the application of gamma-ray bursts (GRBs) to cosmology is that the calibration of GRB luminosity/energy relations depends on the cosmological model, due to…
Broadband Spectral Properties of Bright High-Energy Gamma-Ray Bursts Observed with BATSE and EGRET
Y. Kaneko, M. M. Gonzalez, R. Preece +2
We present the spectral analysis of duration-integrated broadband spectra (in keVMeV) of 15 bright BATSE gamma-ray bursts (GRBs). Some GRB spectra are very hard, wi…