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
28 papers · 2 filters
Investigation of the Formation and Separation of An EUV Wave from the Expansion of A Coronal Mass Ejection
X. Cheng, J. Zhang, O. Olmedo +3
We address the nature of EUV waves through direct observations of the formation of a diffuse wave driven by the expansion of a coronal mass ejection (CME) and its subsequent separa…
Incorporating Kinetic Physics into a Two-Fluid Solar-Wind Model with Temperature Anisotropy and Low-Frequency Alfven-Wave Turbulence
Benjamin D. G. Chandran, Timothy J. Dennis, Eliot Quataert +1
We develop a 1D solar-wind model that includes separate energy equations for the electrons and protons, proton temperature anisotropy, collisional and collisionless heat flux, and…
Statistically-derived flaring chromospheric-coronal density structure from non-thermal X-ray observations of the Sun
Pascal Saint-Hilaire, Sam Krucker, Robert P. Lin
For the first time, we have used RHESSI's spatial and energy resolution to determine the combined chromospheric and coronal density profile of the flaring solar atmosphere in a sta…
The x-ray detectability of electron beams escaping from the sun
Pascal Saint-Hilaire, Sam Krucker, Steven Christe +1
We study the detectability and characterization of electron beams as they leave their acceleration site in the low corona toward interplanetary space through their nonthermal X-ray…
X-ray emission from the base of a current sheet in the wake of a CME
Pascal Saint-Hilaire, Sam Krucker, Robert P. Lin
Following a CME which started on 2002 November 26, RHESSI, the Ramaty High Energy Solar Spectroscopic Imager, observed for 12 hours an X-ray source above the solar limb, at altitud…
A Statistical Survey of Hard X-ray Spectral Characteristics of Solar Flares with Two Footpoints
Pascal Saint-Hilaire, Sam Krucker, Robert P. Lin
Using RHESSI data, we have analyzed some 172 hard X-ray peaks during 53 solar flares which exhibited a double-footpoint structure. Fitting both footpoints with power-laws, we find…
Allen Telescope Array Multi-Frequency Observations of the Sun
Pascal Saint-Hilaire, Gordon J. Hurford, Garrett Keating +2
We present the first observations of the Sun with the Allen Telescope Array (ATA). We used up to six frequencies, from 1.43 to 6 GHz, and baselines from 6 to 300 m. To our knowledg…
Dynamic Coupling of Convective Flows and Magnetic Field during Flux Emergence
Fang Fang, Ward Manchester, William P. Abbett +1
We simulate the buoyant rise of a magnetic flux rope from the solar convection zone into the corona to better understand the energetic coupling of the solar interior to the corona.…
Properties of Energetic Ions in the Solar Atmosphere from γ -Ray and Neutron Observations
Nicole Vilmer, Alec L. MacKinnon, Gordon J. Hurford
Gamma-rays and neutrons are the only sources of information on energetic ions present during solar flares and on properties of these ions when they interact in the solar atmosphere…
Deducing Electron Properties From Hard X-Ray Observations
E. P. Kontar, J. C. Brown, A. G. Emslie +11
X-radiation from energetic electrons is the prime diagnostic of flare-accelerated electrons. The observed X-ray flux (and polarization state) is fundamentally a convolution of the…
Energy Release and Particle Acceleration in Flares: Summary and Future Prospects
R. P. Lin
RHESSI measurements relevant to the fundamental processes of energy release and particle acceleration in flares are summarized. RHESSI's precise measurements of hard X-ray continuu…
Decorrelation Times of Photospheric Fields and Flows
Brian T. Welsch, Kanya Kusano, Tetsuya T. Yamamoto +1
We use autocorrelation to investigate evolution in flow fields inferred by applying Fourier Local Correlation Tracking (FLCT) to a sequence of high-resolution (0.3 \arcsec), high-c…
Lagrangian coherent structures in photospheric flows and their implications for coronal magnetic structure
A. R. Yeates, G. Hornig, B. T. Welsch
Aims. We show how the build-up of magnetic gradients in the Sun's corona may be inferred directly from photospheric velocity data. This enables computation of magnetic connectivity…
The Relationship Between Solar Radio and Hard X-ray Emission
Stephen M. White, Arnold O. Benz, Steven Christe +9
This review discusses the complementary relationship between radio and hard X-ray observations of the Sun using primarily results from the era of the Reuven Ramaty High Energy Sola…
Implications of X-ray Observations for Electron Acceleration and Propagation in Solar Flares
Gordon D. Holman, Markus J. Aschwanden, Henry Aurass +6
High-energy X-rays and gamma-rays from solar flares were discovered just over fifty years ago. Since that time, the standard for the interpretation of spatially integrated flare X-…
An Observational Overview of Solar Flares
Lyndsay Fletcher, Brian R. Dennis, Hugh S. Hudson +12
We present an overview of solar flares and associated phenomena, drawing upon a wide range of observational data primarily from the RHESSI era. Following an introductory discussion…
High-Energy Aspects of Solar Flares: Overview of the Volume
Brian R. Dennis, A. Gordon Emslie, Hugh S. Hudson
In this introductory chapter, we provide a brief summary of the successes and remaining challenges in understanding the solar flare phenomenon and its attendant implications for pa…
Origin of the submillimeter radio emission during the time-extended phase of a solar flare
G. Trottet, J. -P. Raulin, G. Giménez de Castro +5
Solar flares observed in the 200-400 GHz radio domain may exhibit a slowly varying and time-extended component which follows a short (few minutes) impulsive phase and which lasts f…
New high precision orbital and physical parameters of the double-lined low-mass spectroscopic binary BY Draconis
K. G. Hełminiak, M. Konacki, M. W. Muterspaugh +3
We present the most precise to date orbital and physical parameters of the well known short period (P=5.975 d), eccentric (e=0.3) double-lined spectroscopic binary BY Draconis, a p…
Microflares and the Statistics of X-ray Flares
I. G. Hannah, H. S. Hudson, M. Battaglia +5
This review surveys the statistics of solar X-ray flares, emphasising the new views that RHESSI has given us of the weaker events (the microflares). The new data reveal that these…
Arrival time calculation for interplanetary coronal mass ejections with circular fronts and application to STEREO observations of the 2009 February 13 eruption
C. Möstl, T. Rollett, N. Lugaz +11
A goal of the NASA STEREO mission is to study the feasibility of forecasting the direction, arrival time and internal structure of solar coronal mass ejections (CMEs) from a vantag…
The slow-mode nature of compressible wave power in solar wind turbulence
G. G. Howes, S. D. Bale, K. G. Klein +3
We use a large, statistical set of measurements from the Wind spacecraft at 1 AU, and supporting synthetic spacecraft data based on kinetic plasma theory, to show that the compress…
Possible detection of two giant extrasolar planets orbiting the eclipsing polar UZ Fornacis
Stephen B. Potter, Encarni Romero--Colmenero, Gavin Ramsay +11
We present new high-speed, multi-observatory, multi-instrument photometry of the eclipsing polar UZ For in order to measure precise mid-eclipse times with the aim of detecting any…
The non-uniform, dynamic atmosphere of Betelgeuse observed at mid-infrared wavelengths
V. Ravi, E. H. Wishnow, C. H. Townes +3
We present an interferometric study of the continuum surface of the red supergiant star Betelgeuse at 11.15 microns wavelength, using data obtained with the Berkeley Infrared Spati…