18.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, BerkeleyUS1.3k papers
- Goddard Space Flight CenterUS457 papers
- California Institute of TechnologyUS379 papers
- Centre National de la Recherche ScientifiqueFR367 papers
- Lawrence Berkeley National LaboratoryUS262 papers
- Jet Propulsion LaboratoryUS260 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR240 papers
- National Institute for AstrophysicsIT239 papers
- University of CambridgeGB208 papers
- Imperial College LondonGB203 papers
- Institut de Recherche en Astrophysique et PlanétologieFR195 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR181 papers
44 papers · 1 filter
X-ray spectral and flux variability of the microquasar GRS 1758-258 on timescales from weeks to years
Maria Hirsch, Katja Pottschmidt, David M. Smith +12
We present the spectral and timing evolution of the persistent black hole X-ray binary GRS 1758-258 based on almost 12 years of observations using the Rossi X-ray Timing Explorer P…
Simultaneous observations of the blazar PKS2155-304 from Ultra-Violet to TeV energies
H. E. S. S., Fermi, NuSTAR collaborations
The results of the first ever contemporaneous multi-wavelength observation campaign on the BL Lac object PKS2155-304 involving Swift, NuSTAR, Fermi-LAT and H.E.S.S. are reported. T…
Large-area Si(Li) Detectors for X-ray Spectrometry and Particle Tracking for the GAPS Experiment
Field Rogers, Mengjiao Xiao, Kerstin Perez +15
Large-area lithium-drifted silicon (Si(Li)) detectors, operable 150°C above liquid nitrogen temperature, have been developed for the General Antiparticle Spectrometer (GAPS) balloo…
The onset of electron-only reconnection
Alfred Mallet
Motivated by recent observations of "electron-only" magnetic reconnection, without an ion-scale sheet or ion outflows, in both the Earth's magnetosheath and in numerical simulation…
The PDFI_SS Electric Field Inversion Software
George H. Fisher, Maria D. Kazachenko, Brian T. Welsch +5
We describe the PDFI_SS software library, which is designed to find the electric field at the Sun's photosphere from a sequence of vector magnetogram and Doppler velocity measureme…
Plasma Waves near the Electron Cyclotron Frequency in the near-Sun Solar Wind
David M. Malaspina, Jasper Halekas, Laura Bercic +17
Data from the first two orbits of the Sun by Parker Solar Probe reveal that the solar wind sunward of 50 solar radii is replete with plasma waves and instabilities. One of the most…
Proton Temperature Anisotropy Variations in Inner Heliosphere Estimated with First Parker Solar Probe Observations
Jia Huang, Justin C. Kasper, Daniel Vech +27
We report proton temperature anisotropy variations in the inner heliosphere with Parker Solar Probe (PSP) observations. Using a linear fitting method, we derive proton temperature…
The role of Alfvén wave dynamics on the large scale properties of the solar wind: comparing an MHD simulation with PSP E1 data
Victor Réville, Marco Velli, Olga Panasenco +18
During Parker Solar Probe's first orbit, the solar wind plasma has been observed in situ closer than ever before, the perihelion on November 6th 2018 revealing a flow that is const…
Detection of the 511 keV Galactic positron annihilation line with COSI
Carolyn A. Kierans, Steven E. Boggs, Andreas Zoglauer +10
The signature of positron annihilation, namely the 511 keV -ray line, was first detected coming from the direction of the Galactic center in the 1970's, but the source of Galact…
Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum from Two Years of POLARBEAR Data
Mario Aguilar Faúndez, Kam Arnold, Carlo Baccigalupi +48
We present a measurement of the gravitational lensing deflection power spectrum reconstructed with two seasons cosmic microwave background polarization data from the POLARBEAR expe…
A Measurement of the Degree Scale CMB B-mode Angular Power Spectrum with POLARBEAR
S. Adachi, M. A. O. Aguilar Faúndez, K. Arnold +69
We present a measurement of the -mode polarization power spectrum of the cosmic microwave background (CMB) using taken from July 2014 to December 2016 with the POLARBEAR experim…
An in-situ interplanetary "U-burst": Observation and results
Juan Carlos Martínez-Oliveros, Saida Milena Diaz Castillo, Vratislav Krupar +3
We report and examine the observation of an unusual and rare in-situ electron observation associated with a solar type III radio burst on 24 December 1996. This radio event was acc…
Lyman-alpha Variability During Solar Flares Over Solar Cycle 24 Using GOES-15/EUVS-E
Ryan O. Milligan, Hugh S. Hudson, Phillip C. Chamberlin +2
The chromospheric Lyman-alpha line of neutral hydrogen (\lya; 1216Å) is the strongest emission line in the solar spectrum. Fluctuations in \lya\ are known to drive changes in plane…
Electron energy partition across interplanetary shocks: II. Statistics
Lynn B. Wilson, Li-Jen Chen, Shan Wang +10
A statistical analysis of 15,210 electron velocity distribution function (VDF) fits, observed within 2 hours of 52 interplanetary (IP) shocks by the spacecraft near 1 A…
MAXI J1820+070 with NuSTAR I. An increase in variability frequency but a stable reflection spectrum: coronal properties and implications for the inner disc in black hole binaries
D. J. K. Buisson, A. C. Fabian, D. Barret +10
MAXI J1820+070 (optical counterpart ASASSN-18ey) is a black hole candidate discovered through its recent very bright outburst. The low extinction column and long duration at high f…
Internal delensing of Cosmic Microwave Background polarization B-modes with the POLARBEAR experiment
S. Adachi, M. A. O. Aguilar Faúndez, Y. Akiba +51
Using only cosmic microwave background polarization data from the POLARBEAR experiment, we measure -mode polarization delensing on subdegree scales at more than significanc…
Modeling the precession of the warped inner accretion disk in the pulsars LMC X-4 and SMC X-1 with NuSTAR and XMM-Newton
McKinley C. Brumback, Ryan C. Hickox, Felix S. Fürst +3
We present a broad-band X-ray study of the effect of superorbital periods on X-ray spectra and pulse profiles in the neutron star X-ray binaries LMC X-4 and SMC X-1. These two sour…
Discovery and Identification of MAXI J1621-501 as a Type I X-ray Burster with a Super-Orbital Period
Nicholas M. Gorgone, Chryssa Kouveliotou, Hitoshi Negoro +26
MAXI J1621-501 is the first Swift/XRT Deep Galactic Plane Survey transient that was followed up with a multitude of space missions (NuSTAR, Swift, Chandra, NICER, INTEGRAL, and MAX…
Laboratory Calibrations of Fe XII-XIV Line-Intensity Ratios for Electron Density Diagnostics
Thusitha P. Arthanayaka, Peter Beiersdorfer, Gregory V. Brown +5
We have used an electron beam ion trap to measure electron-density-diagnostic line-intensity ratios for extreme ultraviolet lines from F XII, XIII, and XIV at wavelengths of 185-20…
High Density Reflection Spectroscopy: II. the Density of the Inner Black Hole Accretion Disc in AGN
Jiachen Jiang, Andrew C. Fabian, Thomas Dauser +7
We present a high density disc reflection spectral analysis of a sample of 17 Seyfert 1 galaxies to study the inner disc densities at different black hole mass scales and accretion…
Scattering of energetic electrons by heat-flux-driven whistlers in flares
G. T. Roberg-Clark, O. V. Agapitov, J. F. Drake +1
The scattering of electrons by heat-flux-driven whistler waves is explored with a particle-in-cell (PIC) simulation relevant to the transport of energetic electrons in flares. The…
Turán Problems for Vertex-disjoint Cliques in Multi-partite Hypergraphs
Erica L. L. Liu, Jian Wang
For two -uniform hypergraphs and , the Turán number is the maximum number of edges in an -free subgraph of . Let be integers…
Quasi-simultaneous radio and X-ray observations of Aql X-1: probing low luminosities
N. V. Gusinskaia, J. W. T. Hessels, N. Degenaar +8
Aql X-1 is one of the best-studied neutron star low-mass X-ray binaries. It was previously targeted using quasi-simultaneous radio and X-ray observations during at least 7 differen…
Modeling a Carrington-scale Stellar Superflare and Coronal Mass Ejection from
Benjamin J. Lynch, Vladimir S. Airapetian, C. Richard DeVore +5
Observations from the Kepler mission have revealed frequent superflares on young and active solar-like stars. Superflares result from the large-scale restructuring of stellar magne…