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Multi-scale analysis of turbulence in the Earth's current sheet
Balogh, A.; Glassmeier, K.; Klecker, B. +8 more
Available from http://www.copernicus.org/site/EGU/annales/22/7/2525.htm?FrameEngine=false;
Evidence for magnetic reconnection in the high corona
Simnett, G. M.
The LASCO C2 coronagraph on the SOHO spacecraft shows many examples of oppositely-directed mass flows along the same (projected) radius vector. We have analysed 40 such events to understand their origin and possible physical cause. The events all had the speed of the outflowing feature higher than that of the inflowing feature. This is interpreted…
The Galaxy Density Environment of Gamma-Ray Burst Host Galaxies
Minniti, Dante; Bornancini, Carlos G.; Martínez, Héctor J. +3 more
We analyze cross-correlation functions between gamma-ray burst (GRB) hosts and surrounding galaxies. We have used data obtained with the Very Large Telescope at Cerro Paranal (Chile), as well as public Hubble Space Telescope data. Our results indicate that GRB host galaxies do not reside in high galaxy density environments. Moreover, the host gala…
Cluster observations of mid-latitude hiss near the plasmapause
Santolík, O.; Décréau, P.; Masson, A. +2 more
Available from http://www.copernicus.org/site/EGU/annales/22/7/2565.htm?FrameEngine=false;
Energetic particle sounding of the magnetopause: A contribution by Cluster/RAPID
Zong, Q. -G.; Daly, P. W.; Korth, A. +4 more
In this paper we present new results using Cluster/Research with Adaptive Particle Imaging Detectors (RAPID) energetic particle observations to remotely sound the high-latitude magnetopause in three dimensions. We demonstrate that energetic particle flux variations in the vicinity of the magnetopause (inside the magnetosphere) are mainly modulated…
XMM-Newton observations of warm absorbers in PG quasars
Page, M. J.; Branduardi-Raymont, G.; Córdova, F. A. +5 more
We present XMM-Newton European Photon Imaging Camera observations of warm absorbers in the quasars PG 1114+445 and PG 1309+355, both of which exhibit evidence for absorption by warm material in the line of sight. We find the absorption in PG 1114+445 to be in two phases, a `hot' phase with a log ionization parameter, ξ, of 2.57, and a `cooler' pha…
Intermediate-age globular clusters in early-type galaxies: Better age determinations by adding U-band observations to the V, I, K datasets
Kissler-Patig, M.; Hempel, M.
This paper represents an extension to a series of publications on combined optical and near-infrared photometry of globular cluster systems in early-type galaxies. Based on color-color diagrams the cumulative age distributions of their globular cluster systems have been derived and revealed intermediate age clusters in two galaxies, namely NGC 436…
XMM-Newton observation of the Seyfert 1 ESO 198-G24
Kaastra, J. S.; O'Brien, P. T.; Porquet, D. +3 more
We present the results from an XMM-Newton observation (January 24, 2001) of the bright Seyfert 1 galaxy
Observations of cosmic ray electrons and positrons during the early stages of the A- magnetic polarity epoch
Clem, John; Evenson, Paul
As part of our ongoing investigation of the charge sign dependence in solar modulation, we measured the cosmic ray positron abundance (0.8 GeV to 4.5 GeV) and electron flux (20 MeV to 4.5 GeV) on balloon flights from Lynn Lake, Manitoba during August 2002. We find that the decrease in the positron abundance observed in 2000 persists in 2002. The l…
Comparison OF Noise Properties Of GONG And MDI Time-Distance Helioseismic Data
Thompson, M. J.; Rajaguru, S. P.; Hughes, S. J.
The recently upgraded system of the ground-based Global Oscillation Network Group (GONG) network of helioseismic observatories has started to provide higher-resolution solar oscillation measurements suitable for local helioseismic studies. Selecting simultaneously observed regions on the Sun by both GONG and the space-borne Michelson Doppler Image…