112 citations · 1.2k across the 62 of their papers we have counts for
65 papers
Tracking a solar energetic eruption and associated energetic particles from Sun to spacecraft
D. E. Morosan, M. Baumgartner-Steinleitner, K. Bhandari +17
Context. Solar energetic particles (SEPs) in the heliosphere are produced by flaring processes on the Sun or shocks driven by coronal mass ejections (CMEs). Electrons, in particula…
Integration of a CME Flux Rope Model with Magnetic Field Draping in Heliospheric Simulations
Ranadeep Sarkar, Jens Pomoell, Emilia Kilpua +1
Accurate prediction of the magnetic structure of interplanetary coronal mass ejections (ICMEs) remains a key challenge in space weather forecasting. Despite several efforts using g…
Tracing magnetic flux rope footpoints in AR 12975 with coronal dimmings and data-driven magnetofrictional simulations
Andreas Wagner, Amaia Razquin, Astrid M. Veronig +3
Coronal mass ejections (CMEs) are driven by the eruption of magnetic flux ropes (MFRs) whose footpoints are often observed indirectly as coronal dimming regions. However, the relat…
Participation, selection and indicative bidding in auctions with costly entry
Changxia Ke, Greg Kubitz, Yang Liu
We study auctions with costly entry in which bidders have incomplete information about their affiliated private valuations prior to entry. We examine whether indicative bidding--a…
Investigation of the Two-Dimensional Velocity Field of the Large-Scale Coronal Wave from September 6, 2011 using the SOLERwave Tool
Markus Baumgartner-Steinleitner, Astrid M. Veronig, Karin Dissauer +1
We investigate the two-dimensional velocity field of the fast and complex large-scale coronal wave observed on September 6, 2011. We use both a classical perturbation profile appro…
Magnetic Topology and Loop Statistics in Observed Coronal Holes Using Potential Field Modeling
Stephan G. Heinemann, Jens Pomoell, Manuela Temmer
Potential Field Source Surface (PFSS) models are widely used to study the solar corona and form the basis for solar wind forecasting, yet often fail to reproduce observed propertie…
Turbulence-Driven Corrugation of Collisionless Fast-Magnetosonic Shocks
Immanuel Christopher Jebaraj, Mikhail Malkov, Nicolas Wijsen +4
Collisionless fast-magnetosonic shocks are often treated as smooth, planar boundaries, yet observations point to organized corrugation of the shock surface. A plausible driver is u…
Evaluating Solar Wind Forecast Using Magnetic Maps That Include Helioseismic Far-Side Information
Stephan G. Heinemann, Dan Yang, Shaela I. Jones +5
To model the structure and dynamics of the heliosphere well enough for high-quality forecasting, it is essential to accurately estimate the global solar magnetic field used as inne…
Effect of interplanetary shock waves on turbulence parameters
Emilia Kilpua, Simon Good, Juska Soljento +6
We have performed an extensive statistical investigation of how interplanetary fast forward shocks affect certain turbulence parameters, namely, the cross-helicity, , residual…
Quantifying Uncertainties in Solar Wind Forecasting Due to Incomplete Solar Magnetic Field Information
Stephan G. Heinemann, Jens Pomoell, Ronald M. Caplan +5
Solar wind forecasting plays a crucial role in space weather prediction, yet significant uncertainties persist due to incomplete magnetic field observations of the Sun. Isolating t…
Determining the acceleration regions of in situ electrons using remote radio and X-ray observations
D. E. Morosan, N. Dresing, C. Palmroos +13
Solar energetic particles in the heliosphere are produced by flaring processes on the Sun or shocks driven by coronal mass ejections. These particles are regularly detected remotel…
The effect of data-driving and relaxation model on magnetic flux rope evolution and stability
Andreas Wagner, Daniel J. Price, Slava Bourgeois +7
We investigate the effect of data-driving on flux rope eruptivity in magnetic field simulations by analysing fully data-driven modelling results of active region (AR) 12473 and AR1…
Direct Measurements of Synchrotron-Emitting Electrons at Near-Sun Shocks
I. C. Jebaraj, O. V. Agapitov, M. Gedalin +22
In this study, we present the first-ever direct measurements of synchrotron-emitting heliospheric traveling shocks, intercepted by the Parker Solar Probe (PSP) during its close enc…
Validation of EUHFORIA cone and spheromak Coronal Mass Ejection Models
L. Rodriguez, D. Shukhobodskaia, A. Niemela +15
Aims. We present the validation results for arrival times and geomagnetic impact of Coronal Mass Ejections (CMEs), using the cone and spheromak CME models implemented in EUropean H…
Estimating the lateral speed of a fast shock driven by a coronal mass ejection at the location of solar radio emissions
S. Normo, D. E. Morosan, E. K. J. Kilpua +1
Fast coronal mass ejections (CMEs) can drive shock waves capable of accelerating electrons to high energies. These shock-accelerated electrons act as sources of electromagnetic rad…
On the Origin of the sudden Heliospheric Open Magnetic Flux Enhancement during the 2014 Pole Reversal
Stephan G. Heinemann, Mathew J. Owens, Manuela Temmer +12
Coronal holes are recognized as the primary sources of heliospheric open magnetic flux (OMF). However, a noticeable gap exists between in-situ measured OMF and that derived from re…
Validity of using Elsässer variables to study the interaction of compressible solar wind fluctuations with a coronal mass ejection
Chaitanya Prasad Sishtla, Jens Pomoell, Norbert Magyar +2
Alfvénic fluctuations, as modelled by the non-linear interactions of Alfvén waves of various scales, are seen to dominate solar wind turbulence. However, there is also a non-neglig…
Classification of Enhanced Geoeffectiveness Resulting from High-Speed Solar Wind Streams Compressing Slower Interplanetary Coronal Mass Ejections
Stephan G. Heinemann, Chaitanya Sishtla, Simon Good +2
High-speed solar wind streams (HSSs) interact with the preceding ambient solar wind to form Stream Interaction Regions (SIRs), which are a primary source of recurrent geomagnetic s…
The Effect of the Parametric Decay Instability on the Morphology of Coronal Type III Radio Bursts
Chaitanya Prasad Sishtla, Immanuel Christopher Jebaraj, Jens Pomoell +4
The nonlinear evolution of Alfvén waves in the solar corona leads to the generation of Alfvénic turbulence. This description of the Alfvén waves involves parametric instabilities w…
Connecting remote and in situ observations of shock-accelerated electrons associated with a coronal mass ejection
D. E. Morosan, J. Pomoell, C. Palmroos +7
One of the most prominent sources for energetic particles in our solar system are huge eruptions of magnetised plasma from the Sun called coronal mass ejections (CMEs), which usual…
The Automatic Identification and Tracking of Coronal Flux Ropes -- Part II: New Mathematical Morphology-based Flux Rope Extraction Method and Deflection Analysis
Andreas Wagner, Slava Bourgeois, Emilia K. J. Kilpua +9
We present a magnetic flux rope (FR) extraction tool for solar coronal magnetic field modelling data, which builds upon the methodology from Wagner et al. (2023). We apply the sche…
Studying the spheromak rotation in data-constrained CME modelling with EUHFORIA and assessing its effect on the Bz prediction
Ranadeep Sarkar, Jens Pomoell, Emilia Kilpua +4
A key challenge in space weather forecasting is accurately predicting the magnetic field topology of interplanetary coronal mass ejections (ICMEs), specifically the north-south mag…
Coronal Models and Detection of Open Magnetic Field
Eleanna Asvestari, Manuela Temmer, Ronald M. Caplan +11
A plethora of coronal models, from empirical to more complex magnetohydrodynamic (MHD) ones, are being used for reconstructing the coronal magnetic field topology and estimating th…
Modeling a Coronal Mass Ejection from an Extended Filament Channel. II. Interplanetary Propagation to 1 au
Erika Palmerio, Anwesha Maharana, Benjamin J. Lynch +5
We present observations and modeling results of the propagation and impact at Earth of a high-latitude, extended filament channel eruption that commenced on 2015 July 9. The corona…