323 citations · 1.9k across the 26 of their papers we have counts for
27 papers
New Observations Needed to Advance Our Understanding of Coronal Mass Ejections
Erika Palmerio, Benjamin J. Lynch, Christina O. Lee +19
Coronal mass ejections (CMEs) are large eruptions from the Sun that propagate through the heliosphere after launch. Observational studies of these transient phenomena are usually b…
Evolution of the Radial Size and Expansion of Coronal Mass Ejections Investigated by Combining Remote and In-Situ Observations
Bin Zhuang, Noé Lugaz, Nada Al-Haddad +4
A fundamental property of coronal mass ejections (CMEs) is their radial expansion, which determines the increase in the CME radial size and the decrease in the CME magnetic field s…
Connecting Solar and Stellar Flares/CMEs: Expanding Heliophysics to Encompass Exoplanetary Space Weather
B. J. Lynch, B. E. Wood, M. Jin +25
The aim of this white paper is to briefly summarize some of the outstanding gaps in the observations and modeling of stellar flares, CMEs, and exoplanetary space weather, and to di…
A Coronal Mass Ejection and Magnetic Ejecta Observed In Situ by STEREO-A and Wind at 55 Angular Separation
Noé Lugaz, Tarik M. Salman, Charles J. Farrugia +8
We present an analysis of {\it in situ} and remote-sensing measurements of a coronal mass ejection (CME) that erupted on 2021 February 20 and impacted both the Solar TErrestrial RE…
Investigating The Cross-section of Coronal Mass Ejections Through the Study of Non-Radial Flows with STEREO/PLASTIC
N. Al-Haddad, A. B. Galvin, N. Lugaz +2
The solar wind, when measured close to 1 au, is found to flow mostly radially outward. There are, however, periods when the flow makes angles up to 15 away from the radial…
Categorization of Coronal Mass Ejection Driven Sheath Regions: Characteristics of STEREO Events
T. M. Salman, N. Lugaz, R. M. Winslow +3
We present a comprehensive statistical analysis of 106 sheath regions driven by coronal mass ejections (CMEs) and measured near 1 AU. Using data from the STEREO probes, this extend…
Properties of the Sheath Regions of Coronal Mass Ejections with or without Shocks from STEREO in situ Observations near 1 AU
T. M. Salman, N. Lugaz, C. J. Farrugia +3
We examine 188 coronal mass ejections (CMEs) measured by the twin STEREO spacecraft during 2007-2016 to investigate the generic features of the CME sheath and the magnetic ejecta (…
Inconsistencies Between Local and Global Measures of CME Radial Expansion as Revealed by Spacecraft Conjunctions
N. Lugaz, T. M. Salman, R. M. Winslow +4
The radial expansion of coronal mass ejections (CMEs) is known to occur from remote observations; from the variation of their properties with radial distance; and from local in sit…
Evolution of a Long-Duration Coronal Mass Ejection and its Sheath Region Between Mercury and Earth on 2013 July 9-14
N. Lugaz, R. M. Winslow, C. J. Farrugia
Using in situ measurements and remote-sensing observations, we study a coronal mass ejection (CME) that left the Sun on 9 July 2013 and impacted both Mercury and Earth while the pl…
Evolution of CME Properties in the Inner Heliosphere: Prediction for Solar Orbiter and Parker Solar Probe
Nada Al-Haddad, Noe Lugaz, Stefaan Poedts +2
The evolution of the magnetic field and plasma quantities inside a coronal mass ejection (CME) with distance are known from statistical studies using data from 1 au monitors, plane…
CME -- HSS interaction and characteristics tracked from Sun to Earth
Stephan G. Heinemann, Manuela Temmer, Charles J. Farrugia +9
In a thorough study, we investigate the origin of a remarkable plasma and magnetic field configuration observed in situ on June 22, 2011 near L1, which appears to be a magnetic eje…
Numerical Algorithm for Detecting Ion Diffusion Regions in the Geomagnetic Tail with Applications to MMS Tail Season May 1 -- September 30, 2017
A. J. Rogers, C. J. Farrugia, R. B. Torbert
We present a numerical algorithm aimed at identifying ion diffusion regions (IDRs) in the geomagnetic tail, and test its applicability. We use 5 criteria applied in three stages. (…
Heliospheric Evolution of Magnetic Clouds
Bojan Vršnak, Tanja Amerstorfer, Mateja Dumbović +7
Interplanetary evolution of eleven magnetic clouds (MCs) recorded by at least two radially aligned spacecraft is studied. The in situ magnetic field measurements are fitted to a cy…
Observations of Extreme ICME Ram Pressure Compressing Mercury's Dayside Magnetosphere to the Surface
Réka M. Winslow, Noé Lugaz, Lydia Philpott +6
Mercury's magnetosphere is known to be affected by enhanced ram pressures and magnetic fields inside interplanetary coronal mass ejections (ICMEs). Here we report detailed observat…
On the Spatial Coherence of Magnetic Ejecta: Measurements of Coronal Mass Ejections by Multiple Spacecraft Longitudinally Separated by 0.01 AU
N. Lugaz, C. J. Farrugia, R. M. Winslow +5
Measurements of coronal mass ejections (CMEs) by multiple spacecraft at small radial separations but larger longitudinal separations is one of the ways to learn about the three-dim…
Electron-Scale Dynamics of the Diffusion Region during Symmetric Magnetic Reconnection in Space
R. B. Torbert, J. L. Burch, T. D. Phan +46
Magnetic reconnection is an energy conversion process important in many astrophysical contexts including the Earth's magnetosphere, where the process can be investigated in-situ. H…
Importance of CME Radial Expansion on the Ability of Slow CMEs to Drive Shocks
Noé Lugaz, Charles J. Farrugia, Reka M. Winslow +3
Coronal mass ejections (CMEs) may disturb the solar wind either by overtaking it, or by expanding into it, or both. CMEs whose front moves faster in the solar wind frame than the f…
The Interaction of Successive Coronal Mass Ejections: A Review
Noé Lugaz, Manuela Temmer, Yuming Wang +1
We present a review of the different aspects associated with the interaction of successive CMEs in the corona and inner heliosphere, focusing on the initiation of series of CMEs, t…
Comparison of magnetic properties in a magnetic cloud and its solar source on April 11-14 2013
P. Vemareddy, C. Möstl, T. Rollett +3
In the context of Sun-Earth connection of coronal mass ejections and magnetic flux ropes (MFRs), we studied the solar active region (AR) and the magnetic properties of magnetic clo…
Strong coronal channelling and interplanetary evolution of a solar storm up to Earth and Mars
Christian Möstl, Tanja Rollett, Rudy A. Frahm +15
The severe geomagnetic effects of solar storms or coronal mass ejections (CMEs) are to a large degree determined by their propagation direction with respect to Earth. There is a la…
Shocks inside CMEs: A Survey of Properties from 1997 to 2006
N. Lugaz, C. J. Farrugia, C. W. Smith +1
We report on 49 fast-mode forward shocks propagating inside coronal mass ejections (CMEs) as measured by Wind and ACE at 1 AU from 1997 to 2006. Compared to typical CME-driven shoc…
Observations of an extreme storm in interplanetary space caused by successive coronal mass ejections
Ying D. Liu, Janet G. Luhmann, Primož Kajdič +8
Space weather refers to dynamic conditions on the Sun and in the space environment of the Earth, which are often driven by solar eruptions and their subsequent interplanetary distu…
A New Class of Complex Ejecta Resulting from the Interaction of two CMEs and its Expected Geoeffectiveness
N. Lugaz, C. J. Farrugia
A significant portion of transients measured by spacecraft at 1 AU does not show the well-defined properties of magnetic clouds (MCs). Here, we propose a new class of complex, non-…
The Interaction of Two Coronal Mass Ejections: Influence of Relative Orientation
N. Lugaz, C. J. Farrugia, W. B. Manchester +1
We report on a numerical investigation of two coronal mass ejections (CMEs) which interact as they propagate in the inner heliosphere. We focus on the effect of the orientation of…