output
19922026
most citedMeasurements of Omega and Lambda from 42 High-Redshift Supernovae

18.1k citations

Showing 2009 · astro-ph.SRShow all

11 papers · 2 filters

astro-ph.SR2009★ 57 cited

Estimating Electric Fields from Vector Magnetogram Sequences

G. H. Fisher, B. T. Welsch, W. P. Abbett +1

Determining the electric field (E-field) distribution on the Sun's photosphere is essential for quantitative studies of how energy flows from the Sun's photosphere, through the cor…

astro-ph.SR2009★ 25 cited

On the Brightness and Waiting-time Distributions of a Type III Radio Storm observed by STEREO/WAVES

J. P. Eastwood, M. S. Wheatland, H. S. Hudson +5

Type III solar radio storms, observed at frequencies below approximately 16 MHz by space borne radio experiments, correspond to the quasi-continuous, bursty emission of electron be…

astro-ph.SR2009★ 36 cited

Signatures of Interchange Reconnection: STEREO, ACE and Hinode Observations Combined

D. Baker, A. P. Rouillard, L. van Driel-Gesztelyi +8

Combining STEREO, ACE and Hinode observations has presented an opportunity to follow a filament eruption and coronal mass ejection (CME) on the 17th of October 2007 from an active…

astro-ph.SR2009★ 39 cited

Comparison of Hinode/XRT and RHESSI detection of hot plasma in the non-flaring solar corona

F. Reale, J. M. McTiernan, P. Testa

We compare observations of the non-flaring solar corona made simultaneously with Hinode/XRT and with RHESSI. The analyzed corona is dominated by a single active region on 12 Novemb…

astro-ph.SR2009★ 19 cited

Submillimeter and X-ray observations of an X Class flare

C. G. Gimenez de Castro, G. Trottet, A. Silva-Valio +5

The GOES X1.5 class flare that occurred on August 30,2002 at 1327:30 UT is one of the few events detected so far at submillimeter wavelengths. We present a detailed analysis of thi…

astro-ph.SR2009★ 468 cited

Magnetic fluctuation power near proton temperature anisotropy instability thresholds in the solar wind

S. D. Bale, J. C. Kasper, G. G. Howes +3

The proton temperature anisotropy in the solar wind is known to be constrained by the theoretical thresholds for pressure anisotropy-driven instabilities. Here we use approximately…

astro-ph.SR2009★ 8 cited

Coronal radiation belts

H. S. Hudson, A. L. MacKinnon, S. F. N. Frewen +1

The magnetic field of the solar corona has a large-scale dipole character, which maps into the bipolar field in the solar wind. Using standard representations of the coronal field,…

astro-ph.SR2009★ 59 cited

Acceleration of Relativistic Protons during the 20 January 2005 Flare and CME

S. Masson, K. -L. Klein, R. Buetikofer +4

The origin of relativistic solar protons during large flare/CME events has not been uniquely identified so far.We perform a detailed comparative analysis of the time profiles of re…

astro-ph.SR2009★ 14 cited

Multi-Wavelength Observation of Electron Acceleration in the 2006 December 13 Flare

T. Minoshima, S. Imada, T. Morimoto +8

We present a multi-wavelength observation of a solar flare occurring on 2006 December 13 with Hinode, RHESSI, and the Nobeyama Radio Observatory, to study the electron acceleration…

astro-ph.SR2009★ 388 cited

A Critical Assessment of Nonlinear Force-Free Field Modeling of the Solar Corona for Active Region 10953

Marc L. DeRosa, Carolus J. Schrijver, Graham Barnes +16

Nonlinear force-free field (NLFFF) models are thought to be viable tools for investigating the structure, dynamics and evolution of the coronae of solar active regions. In a series…

astro-ph.SR2009★ 13 cited

Imaging Spectroscopy on Preflare Coronal Nonthermal Sources Associated with the 2002 July 23 Flare

Ayumi Asai, Hiroshi Nakajima, Masumi Shimojo +3

We present a detailed examination on the coronal nonthermal emissions during the preflare phase of the X4.8 flare that occurred on 2002 July 23. The microwave (17 GHz and 34 GHz) d…