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Found 5 essays matching the above criteria.

1. 1. WSA-ENLIL + Cone ensemble modeling of an Earth-directed ICME : Comparison with in-situ observations by Solar Orbiter and WIND at L1

   University essay from Uppsala universitet/Institutionen för fysik och astronomi; Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

   Author : Alberto García Ribas; [2023]
   Keywords : ;

   Abstract : Coronal mass ejections (CMEs) are considered the most energetic phenomenon in the heliosphere. Originated in the solar corona, they are formed by ejected plasma driven by strong magnetic fields. READ MORE

3. 2. Ly-α Dayglow on Uranus : Radiative Transfer Modelling

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Jahangir Jazayeri; [2021]
   Keywords : Uranus; Lyman-alpha; Ly-α; resonant scattering; Rayleigh scattering; interplanetary medium; ultraviolet; hydrogen; methane; parameter study; limb brightening; Voyager 2; Ultraviolet Spectrometer;

   Abstract : Uranus is one of the least explored planets in our solar system. Event though the Uranian Ly-α emission has been a subject of study for decades, there is not a consensus on the sources contribution to the total signal. READ MORE

4. 3. Drag based forecast for CME arrival

   University essay from Uppsala universitet/Institutionen för fysik och astronomi

   Author : Simon Jaklovsky; [2020]
   Keywords : CME; ICME; Halo coronal mass ejections; DBM; DBEM; solar wind; interplanetary medium; shock; space weather forecast; geoeffectivity; solar-terrestrial interaction;

   Abstract :           Coronal Mass Ejections (CMEs) are considered to be one of the most energetic events in the heliosphere. Capable of inducing geomagnetic storms on Earth that can cause damage to electronics, a pillar which the modern society we live in leans heavily upon. READ MORE

5. 4. Modeling the complex ejecta on 2017 September 6-9 with WSA-ENLIL+Cone and EUHFORIA

   University essay from Uppsala universitet/Institutionen för fysik och astronomi; Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

   Author : Anita Linnéa Elisabeth Werner; [2018]
   Keywords : CME; space weather; forecast; prediction; WSA-ENLIL Cone; EUHFORIA; preconditioning; type II radio burst; kmTII; dcld; September 2017; geoeffective;

   Abstract : Three CMEs which erupted on 2017 Sep 4 and 6 underwent mutual interaction before reaching Earth on Sep 6-9, where it gave rise to a complex and unexpectedly geoeffective structure as detected by WIND at L1. The spacecraft first observed an interplanetary (IP) shock on Sep 6 followed by a turbulent sheath. READ MORE

6. 5. Europa's Hydrogen Corona in a Large Set of HST Lyman-Alpha Images

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Sofia Bergman; [2017]
   Keywords : Europa; Jupiter; Atmospheric Physics; HST; STIS; Spectral Images; Hydrogen; Corona; Lyman-Alpha; Number Density; Albedo; Modelling;

   Abstract : Far-ultraviolet (FUV) spectral images of Jupiter's moon Europa were obtained by the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope (HST) on 20 occasions between the years 1999 and 2015. In this thesis these data are analyzed to look for Lyman-alpha emissions from a hydrogen corona. READ MORE