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
65 papers · 1 filter
Feasibility of a Small, Rapid Optical-to-IR Response, Next Generation Gamma Ray Burst Mission
B. Grossan, G. F. Smoot, V. V. Bogomolov +13
We present motivations for and study feasibility of a small, rapid optical to IR response gamma ray burst (GRB) space observatory. By analyzing existing GRB data, we give realistic…
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…
A Suzaku X-ray observation of one orbit of the supergiant fast X-ray transient IGR J16479-4514
L. Sidoli, P. Esposito, V. Sguera +6
We report on a 250 ks long X-ray observation of the supergiant fast X-ray transient (SFXT) IGR J16479-4514 performed with Suzaku in 2012 February. About 80% of the short orbital pe…
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,…
The "universal" radio/X-ray flux correlation : the case study of the black hole GX 339-4
S. Corbel, M. Coriat, C. Brocksopp +5
The existing radio and X-ray flux correlation for Galactic black holes in the hard and quiescent states relies on a sample which is mostly dominated by two sources (GX 339-4 and V4…
Astropulse: A Search for Microsecond Transient Radio Signals Using Distributed Computing. I. Methodology
J. Von Korff, P. Demorest, E. Heien +7
We are performing a transient, microsecond timescale radio sky survey, called "Astropulse," using the Arecibo telescope. Astropulse searches for brief (0.4 μs to 204.8 μs), wideban…
Far-Ultraviolet Spectral Images of the Vela Supernova Remnant: Supplements and Comparisons with other Wavelength Images
Il-Joong Kim, Kwang-Il Seon, Kyoung-Wook Min +2
We present the improved far-ultraviolet (FUV) emission-line images of the entire Vela supernova remnant (SNR) using newly processed SPEAR/FIMS data. The incomplete C III λ977 and O…
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…
The Discovery of HD 37605c and a Dispositive Null Detection of Transits of HD 37605b
Sharon Xuesong Wang, Jason T. Wright, William Cochran +15
We report the radial-velocity discovery of a second planetary mass companion to the K0 V star HD 37605, which was already known to host an eccentric, P~55 days Jovian planet, HD 37…
Investigating the Optical Counterpart Candidates of Four INTEGRAL Sources localized with Chandra
Mehtap Özbey Arabacı, Emrah Kalemci, John A. Tomsick +5
We report on the optical spectroscopic follow up observations of the candidate counterparts to four INTEGRAL sources: IGR J04069+5042, IGR J06552-1146, IGR J21188+4901 and IGR J220…
The DEEP2 Galaxy Redshift Survey: Clustering Dependence on Galaxy Stellar Mass and Star Formation Rate at z~1
Nick Mostek, Alison L. Coil, Michael C. Cooper +3
We present DEEP2 galaxy clustering measurements at z~1 as a function of stellar mass, star formation rate (SFR), and specific SFR (sSFR). We find a strong positive correlation betw…
Kinetic Scale Density Fluctuations in the Solar Wind
C. H. K. Chen, G. G. Howes, J. W. Bonnell +3
We motivate the importance of studying kinetic scale turbulence for understanding the macroscopic properties of the heliosphere, such as the heating of the solar wind. We then disc…
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…
Refactoring, reengineering and evolution: paths to Geant4 uncertainty quantification and performance improvement
M. Batic, M. Begalli, M. Han +9
Ongoing investigations for the improvement of Geant4 accuracy and computational performance resulting by refactoring and reengineering parts of the code are discussed. Issues in re…
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…
GPU Acceleration of Image Convolution using Spatially-varying Kernel
Steven Hartung, Hemant Shukla, J. Patrick Miller +1
Image subtraction in astronomy is a tool for transient object discovery such as asteroids, extra-solar planets and supernovae. To match point spread functions (PSFs) between images…
Alignment and scaling of large-scale fluctuations in the solar wind
Robert T. Wicks, Alfred Mallet, Timothy S. Horbury +3
We investigate the dependence of solar wind fluctuations measured by the Wind spacecraft on scale and on the degree of alignment between oppositely directed Elsasser fields. This a…
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…
The Deflection of the Two Interacting Coronal Mass Ejections of 2010 May 23-24 as Revealed by Combined In situ Measurements and Heliospheric Imaging
N. Lugaz, C. J. Farrugia, J. A. Davies +4
In 2010 May 23-24, SDO observed the launch of two successive coronal mass ejections (CMEs), which were subsequently tracked by the SECCHI suite onboard STEREO. Using the COR2 coron…
Advancing In Situ Modeling of ICMEs: New Techniques for New Observations
Tamitha Mulligan, Alysha A. Reinard, Benjamin J. Lynch
It is generally known that multi-spacecraft observations of interplanetary coronal mass ejections (ICMEs) more clearly reveal their three-dimensional structure than do observations…
The SWAP EUV Imaging Telescope Part I: Instrument Overview and Pre-Flight Testing
D. B. Seaton, D. Berghmans, B. Nicula +17
The Sun Watcher with Active Pixels and Image Processing (SWAP) is an EUV solar telescope on board ESA's Project for Onboard Autonomy 2 (PROBA2) mission launched on 2 November 2009.…
Chandra observations of SGR 1627-41 near quiescence
Hongjun An, Victoria M. Kaspi, John A. Tomsick +4
We report on an observation of SGR 1627-41 made with the Chandra X-ray Observatory on 2011 June 16. Approximately three years after its outburst activity in 2008, the source's flux…