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
21 papers · 2 filters
Kappa Distribution Model for Hard X-Ray Coronal Sources of Solar Flares
M. Oka, S. Ishikawa, P. Saint-Hilaire +2
Solar flares produce hard X-ray emission of which the photon spectrum is often represented by a combination of thermal and power-law distributions. However, the estimates of the nu…
The Driver of Coronal Mass Ejections in the Low Corona: A Flux Rope
X. Cheng, J. Zhang, D. M. Ding +2
Recent Solar Dynamic Observatory observations reveal that coronal mass ejections (CMEs) consist of a multi-temperature structure: a hot flux rope and a cool leading front (LF). The…
A decade of solar Type III radio bursts observed by the Nancay Radioheliograph 1998-2008
Pascal Saint-Hilaire, Nicole Vilmer, Alain Kerdraon
We present a statistical survey of almost 10 000 radio Type III bursts observed by the Nancay Radioheliograph from 1998 to 2008, covering nearly a full solar cycle. In particular,…
Solar flare hard X-ray spikes observed by RHESSI: a case study
J. Qiu, J. X. Cheng, G. J. Hurford +2
In this paper, we analyze hard X-ray spikes observed by RHESSI to understand their temporal, spectral, and spatial properties. A recently developed demodulation code was applied to…
Magnetic Field Configuration Models and Reconstruction Methods for Interplanetary Coronal Mass Ejections
N. Al-Haddad, T. Nieves-Chinchilla, N. P. Savani +6
This study aims to provide a reference to different magnetic field models and reconstruction methods for interplanetary coronal mass ejections (ICMEs). In order to understand the d…
A photospheric metal line profile analysis of hot DA white dwarfs with circumstellar material
Nathan J. Dickinson, Martin A. Barstow, Barry Y. Welsh
Some hot DA white dwarfs have circumstellar high ion absorption features in their spectra, in addition to those originating in the photosphere. In many cases, the line profiles of…
Multi-point shock and flux rope analysis of multiple interplanetary coronal mass ejections around 2010 August 1 in the inner heliosphere
C. Möstl, C. J. Farrugia, E. K. J. Kilpua +20
We present multi-point in situ observations of a complex sequence of coronal mass ejections (CMEs) which may serve as a benchmark event for numerical and empirical space weather pr…
Global Energetics of Thirty-Eight Large Solar Eruptive Events
A. G. Emslie, B. R. Dennis, A. Y. Shih +6
We have evaluated the energetics of 38 solar eruptive events observed by a variety of spacecraft instruments between February 2002 and December 2006, as accurately as the observati…
How Many CMEs Have Flux Ropes? Deciphering the Signatures of Shocks, Flux Ropes, and Prominences in Coronagraph Observations of CMEs
Angelos Vourlidas, Ben J. Lynch, Russ A. Howard +1
We intend to provide a comprehensive answer to the question on whether all Coronal Mass Ejections (CMEs) have flux rope structure. To achieve this, we present a synthesis of the LA…
The height of a white-light flare and its hard X-ray sources
Juan-Carlos Martínez Oliveros, Hugh S. Hudson, Gordon J. Hurford +6
We describe observations of a white-light flare (SOL2011-02-24T07:35:00, M3.5) close to the limb of the Sun, from which we obtain estimates of the heights of the optical continuum…
Buildup of Magnetic Shear and Free Energy During Flux Emergence and Cancellation
Fang Fang, Ward Manchester, William P. Abbett +1
We examine a simulation of flux emergence and cancellation, which shows a complex sequence of processes that accumulate free magnetic energy in the solar corona essential for the e…
Radio signatures of CME-streamer interaction and source diagnostics of type II radio burst
S. W. Feng, Y. Chen, X. L. Kong +4
It has been suggested that type II radio bursts are due to energetic electrons accelerated at coronal shocks. Radio observations, however, have poor or no spatial resolutions to pi…
The origin of circumstellar features in the spectra of hot DA white dwarfs
N. J. Dickinson, M. A. Barstow, B. Y. Welsh +4
We have analysed a sample of 23 hot DAs to better understand the source of the circumstellar features reported in previous work. Unambiguous detections of circumstellar material ar…
Magneto--Acoustic Energetics Study of the Seismically Active Flare of 15 February 2011
J. D. Alvarado-Gómez, J. C. Buitrago-Casas, J. C. Martínez-Oliveros +3
Multi--wavelength studies of energetic solar flares with seismic emissions have revealed interesting common features between them. We studied the first GOES X--class flare of the 2…
Speeds and arrival times of solar transients approximated by self-similar expanding circular fronts
Christian Möstl, Jackie A. Davies
The NASA STEREO mission opened up the possibility to forecast the arrival times, speeds and directions of solar transients from outside the Sun-Earth line. In particular, we are in…
The 2010 August 01 type II burst: A CME-CME Interaction, and its radio and white-light manifestations
Juan Carlos Martínez Oliveros, Claire L. Raftery, Hazel M. Bain +4
We present observational results of a type II burst associated with a CME-CME interaction observed in the radio and white-light wavelength range. We applied radio direction-finding…
Observations of Enhanced EUV Continua During An X-Class Solar Flare Using SDO/EVE
Ryan O. Milligan, Phillip C. Chamberlin, Hugh S. Hudson +5
Observations of extreme-ultraviolet (EUV) emission from an X-class solar flare that occurred on 2011 February 15 at 01:44 UT are presented, obtained using the EUV Variability Exper…
Characteristics of kinematics of a coronal mass ejection during the 2010 August 1 CME-CME interaction event
Manuela Temmer, Bojan Vrsnak, Tanja Rollett +16
We study the interaction of two successive coronal mass ejections (CMEs) during the 2010 August 1 events using STEREO/SECCHI COR and HI data. We obtain the direction of motion for…
Interactions between Coronal Mass Ejections Viewed in Coordinated Imaging and In Situ Observations
Ying D. Liu, Janet G. Luhmann, Christian Mostl +7
The successive coronal mass ejections (CMEs) from 2010 July 30 - August 1 present us the first opportunity to study CME-CME interactions with unprecedented heliospheric imaging and…
SN 2006oz: rise of a super-luminous supernova observed by the SDSS-II SN Survey
G. Leloudas, E. Chatzopoulos, B. Dilday +21
We study SN 2006oz, a newly-recognized member of the class of H-poor, super-luminous supernovae. We present multi-color light curves from the SDSS-II SN Survey, that cover the rise…
A Magnetic Calibration of Photospheric Doppler Velocities
Brian T. Welsch, George H. Fisher, Xudong Sun
The zero point of measured photospheric Doppler shifts is uncertain for at least two reasons: instrumental variations (from, e.g., thermal drifts), and the convective blueshift, a…