Grace Richards
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View article: Long-lived Magnetic Switchbacks Tracked across 0.32 au through BepiColombo–Solar Orbiter Radial Alignment
Long-lived Magnetic Switchbacks Tracked across 0.32 au through BepiColombo–Solar Orbiter Radial Alignment Open
Magnetic switchbacks, often observed in the near-Sun solar wind, have received increased interest in recent years due to their potential role in mediating the heating and acceleration of the solar wind, but their origin remains debated. In…
View article: Water-group ion irradiation studies of Enceladus ice analogues: Can radiolysis account for material in and around the south polar plume?
Water-group ion irradiation studies of Enceladus ice analogues: Can radiolysis account for material in and around the south polar plume? Open
Saturn's magnetosphere contains trapped plasma and energetic charged particles which constantly irradiate the surface of Enceladus. In this study, we exposed Enceladean surface ice analogues containing H2O, CO2, CH4, and NH3 to water-group…
View article: Effects of Comet Encke’s meteoroid stream on the seasonal variation of Mercury’s Ca exosphere
Effects of Comet Encke’s meteoroid stream on the seasonal variation of Mercury’s Ca exosphere Open
The NASA/MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) mission provided measurements of Mercury’s Ca exosphere, allowing the study of its morphology and its seasonal variations. Observations of Ca column densiti…
View article: Water-Group Ion Irradiation Studies of Enceladus Surface Analogues
Water-Group Ion Irradiation Studies of Enceladus Surface Analogues Open
IntroductionSaturn’s magnetosphere contains trapped plasma and energetic charged particles which constantly irradiate the surface of Enceladus. The plasma consists of a variety of charged particles including water-group ions (O+, OH+, H2O+…
View article: Modelling of Mercury’s Ca exosphere observed by PHEBUS during the First Three Flybys
Modelling of Mercury’s Ca exosphere observed by PHEBUS during the First Three Flybys Open
Meteoroid bombardment of Mercury’s surface causes seasonal variability in its calcium (Ca) exosphere, as observed by the MESSENGER mission [1, 2]. The observed high-energy Ca source exhibits a dawn enhancement and a distinct dawn–dusk asym…
View article: Planetary space weather experiments at the I-ENA facility at INAF-IAPS in Rome
Planetary space weather experiments at the I-ENA facility at INAF-IAPS in Rome Open
Introduction The Ion and Energetic Neutral Atom (I-ENA) beam facility at INAF-IAPS provides a unique platform to investigate the interaction of modifiable ion and neutral beams with a wide range of samples and detectors [1, 2]. For over tw…
View article: In-depth Analysis of the 2022 March 28 <sup>3</sup>He-rich Solar Energetic Particle Event
In-depth Analysis of the 2022 March 28 <sup>3</sup>He-rich Solar Energetic Particle Event Open
On 2022 March 28, a solar eruption from active region AR 12975 produced a solar energetic particle (SEP) event observed by BepiColombo (BC; 0.57 au), STEREO-A (STA; 0.97 au), GOES (1.0 au), ACE (L1), and Wind (L1). The event was associated…
View article: Laboratory simulation of ion impact and back-scattering on Mercury surface analogues for planetary space weather investigation
Laboratory simulation of ion impact and back-scattering on Mercury surface analogues for planetary space weather investigation Open
Mercury has a surface-bound exosphere that mediates transport of ion and netural species on the surface and within the Hermean environment. When precipitating solar wind particles impact the planet’s regolith, ions may be neutralised…
View article: Hypervelocity impact studies on Enceladus analogue ices
Hypervelocity impact studies on Enceladus analogue ices Open
<p>Enceladus is an icy moon of Saturn, with a surface composed predominantly of water ice [1]. It has large water vapour plumes, which eject icy grains and volatiles from its subsurface ocean into space [1]. The presence of a subsurf…
View article: Entombment of microbial biomass within rapidly frozen fluid droplets relevant to the plumes of Enceladus
Entombment of microbial biomass within rapidly frozen fluid droplets relevant to the plumes of Enceladus Open
<p><strong>Introduction.</strong> The plumes emanating from the south polar region of Saturn&#8217;s moon Enceladus were studied by the Cassini mission and have revealed evidence for ongoing hydrothermal activity [1],…
View article: Development of Enceladus ice analogues for in situ analysis
Development of Enceladus ice analogues for in situ analysis Open
IntroductionThe surface of Enceladus could provide one of the best places in our Solar System to investigate the potential for life. Material from plumes seen emanating from Enceladus' South Polar Region[1], which are believed to be source…
View article: Looking for life: Unlocking the secrets of Enceladus' surface
Looking for life: Unlocking the secrets of Enceladus' surface Open
Judges Choice Best Use of Imagery - 2nd prize poster in the Postgraduate Research Poster Competition held by the Graduate School at the Open University on 10th June 2020.