Anikó Timár
YOU?
Author Swipe
View article: Directional discontinuities in the inner heliosphere from Parker Solar Probe and Solar Orbiter observations
Directional discontinuities in the inner heliosphere from Parker Solar Probe and Solar Orbiter observations Open
Directional discontinuities (DDs) are common structures in the solar wind plasma and are among the most important discontinuities besides shock waves. The Parker Solar Probe and Solar Orbiter spacecraft currently provide whole new insight …
View article: The response of the cometary ionosphere to space weather forcing
The response of the cometary ionosphere to space weather forcing Open
The Rosetta spacecraft observed the temporal evolution of the ion populations within the ionosphere of comet 67P/Churyumov–Gerasimenko. A striking feature of the ion spectrum is represented by the so-called medium-energy ion peaks, which r…
View article: The response of the cometary ionosphere to space weather forcing
The response of the cometary ionosphere to space weather forcing Open
The Rosetta spacecraft, traversing the inner magnetosphere of comet 67P/Churyumov-Gerasimenko, observed medium-energy ions of cometary origin. These ions, moving in the direction of the cometary nucleus, are likely accelerated in the outer…
View article: Latitudinal Variation of the Background Solar Wind in the Inner Heliosphere from Multi-Spacecraft Observations
Latitudinal Variation of the Background Solar Wind in the Inner Heliosphere from Multi-Spacecraft Observations Open
In order to improve the predictions of the ambient solar wind plasma at planets, moons, comets, and interplanetary spacecraft, we are conducting a multi-spacecraft investigation to study the spatial variation and temporal evolution of sola…
View article: 3D pressure-corrected ballistic extrapolation of solar wind speed in the inner heliosphere
3D pressure-corrected ballistic extrapolation of solar wind speed in the inner heliosphere Open
Solar wind parameters at different locations in the inner heliosphere can be estimated using various solar wind extrapolation methods. The simple ballistic method extrapolates solar wind parameters from the point of measurement to a chosen…
View article: Temporal evolution and spatial variation of the solar wind structures throughout the heliosphere
Temporal evolution and spatial variation of the solar wind structures throughout the heliosphere Open
<p>In order to improve the predictions of the solar wind environment at planets, moons, comets and interplanetary spacecraft, we study the temporal evolution and spatial variation of solar wind structures. Special emphasis is put on …
View article: Spatial Structure of CIRs
Spatial Structure of CIRs Open
<p>Co-rotating Interaction Regions are complex and fascianting structures in the Heliosphere that&#160;<br>play an important role in space weather. They arise from the fast solar wind interacting with the&#160;<br>…
View article: Extrapolation of solar wind parameters in three-dimensions in the inner heliosphere
Extrapolation of solar wind parameters in three-dimensions in the inner heliosphere Open
<p>Solar wind parameters, such as the velocity, density or pressure of the solar wind, are one of the most important factors in space physics, and their knowledge at as many points in the heliosphere as possible contributes to a broa…
View article: Spatial variation of the background solar wind in the Inner Heliosphere
Spatial variation of the background solar wind in the Inner Heliosphere Open
<div>The importance of background solar wind is unquestionable as it carries information on the solar surface conditions and has a major role in space weather events. The current solar minimum is a perfect time period for investigati…
View article: Directional Discontinuities in the Inner Heliosphere
Directional Discontinuities in the Inner Heliosphere Open
<p>The Parker Solar Probe and Solar Orbiter spacecraft make whole new spatial and time scales available in the inner Heliosphere. With these new data, we study directional discontinuities that are common structures in the solar wind …
View article: Temporal evolution of the background solar wind throughout the inner heliosphere
Temporal evolution of the background solar wind throughout the inner heliosphere Open
<p>The solar wind properties at a given point in the heliosphere depend strongly on the source surface characteristics, the dynamical effects during propagation and the transient events. We study the background solar wind structures …
View article: Analysis of ULF waves and SLAMS formation at Saturn
Analysis of ULF waves and SLAMS formation at Saturn Open
<p>We present five events of SLAMS (short large-amplitude magnetic structures) detected upstream of the quasi-parallel bow shock of Saturn. The events were discovered and further analyzed using the measurements of the Cassini Plasma …
View article: Comparing 1-year GUMICS-4 simulations of the Terrestrial Magnetosphere with Cluster Measurements
Comparing 1-year GUMICS-4 simulations of the Terrestrial Magnetosphere with Cluster Measurements Open
We compare the predictions of the GUMICS$-$4 global magnetohydrodynamic model\nfor the interaction of the solar wind with the Earth's magnetosphere with\nCluster~SC3 measurements for over one year, from January 29, 2002, to February\n2, 20…
View article: Plasma distribution around Comet 67P in the last month of the Rosetta mission
Plasma distribution around Comet 67P in the last month of the Rosetta mission Open
International audience
View article: Effects of the solar wind dynamic pressure on the accelerated cometary ions in the magnetosphere of comet 67P
Effects of the solar wind dynamic pressure on the accelerated cometary ions in the magnetosphere of comet 67P Open
<p>Rosetta observed medium-energy ions around comet 67P/Churyumov-Gerasimenko while orbiting deep inside the coma. These ions are thought to be accelerated towards the anti-sunward direction by some acceleration mechanism in the oute…
View article: Space weather at Mercury as observed by the THEMIS telescope from Earth
Space weather at Mercury as observed by the THEMIS telescope from Earth Open
<p>The dynamic changes of Mercury&#8217;s Na exosphere are investigated here, in relation to space weather conditions. Sodium plays a special role in Mercury&#8217;s exosphere: due to its strong resonance D lines at 5890-95&a…
View article: Determining the ion velocity in the inner magnetosphere of comet 67P/Churyumov&#8211;Gerasimenko using Rosetta IES measurements
Determining the ion velocity in the inner magnetosphere of comet 67P/Churyumov–Gerasimenko using Rosetta IES measurements Open
<p>Determining the ion bulk velocity is essential to understand the physics of the inner magnetosphere of comets. This velocity controls the strength of the ion-neutral drag force, which plays a very important role in the energy and …
View article: Integrating less represented countries into the mainstream of European geosciences
Integrating less represented countries into the mainstream of European geosciences Open
<p>In order to build a diverse, inclusive community of geoscientists within Europe, a statistical study is carried out based on participation statistics of different conferences in Europe over the past five years. Data of geoscience …
View article: Estimating the solar wind pressure at comet 67P from Rosetta magnetic field measurements
Estimating the solar wind pressure at comet 67P from Rosetta magnetic field measurements Open
Aims : The solar wind pressure is an important parameter of space weather, which plays a crucial role in the interaction of the solar wind with the planetary plasma environment. Here we investigate the possibility of determining a solar wi…
View article: Modelling the size of the very dynamic diamagnetic cavity of comet 67P/Churyumov–Gerasimenko
Modelling the size of the very dynamic diamagnetic cavity of comet 67P/Churyumov–Gerasimenko Open
After the first detection of the diamagnetic cavity of comet 67P/Churyumov–Gerasimenko, it became apparent that the boundary of this plasma region is very dynamic. To date hundreds of short cavity crossing events were detected, none lastin…
View article: Charged particle signatures of the diamagnetic cavity of comet 67P/Churyumov–Gerasimenko
Charged particle signatures of the diamagnetic cavity of comet 67P/Churyumov–Gerasimenko Open
International audience