Essays about: "stars: magnetic fields"

Showing result 1 - 5 of 11 essays containing the words stars: magnetic fields.

  1. 1. Simulations of the Tenuous Upper Atmospheres of Exoplanets

    University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Author : Lucian Spitzner; [2023]
    Keywords : astronomy; astrophyics; exoplanets; transmission spectroscopy; magnetic fields; atmospheres; ions; Physics and Astronomy;

    Abstract : Over the last decade, the interest in research on extraterrestrial planets has expanded dramatically. With the number of confirmed exoplanets having increased tenfold over the last ten years, we now know that many different types of exoplanets exist. READ MORE

  3. 2. Magnetic field of the Ap star EP UMa

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Jakob Melin; [2023]
    Keywords : stars: chemically peculiar - stars: magnetic fields – stars: individual: EP UMa;

    Abstract : Magnetic fields play a crucial roll in the stellar activity and evolutionof stars. Despite much research there is much that we do notunderstand. Among Ap stars, empirical evidence has suggested a minimumthreshold for the dipolar magnetic field strength of Bp ≈ 300G. READ MORE

  4. 3. The magnetic fields of exoplanet hostM-dwarf stars : The magnetic fields of exoplanet hostM-dwarf stars

    University essay from Uppsala universitet/Teoretisk astrofysik

    Author : Thomas Herard; [2021]
    Keywords : ;

    Abstract : The majority of stars in the Milky Way are M dwarfs whichmake up 75 % of stars in the vicinity of the sun. As the magneticfield of stars can significantly affect the interiors and theatmospheres of the exoplanets they host within the stellar system,characterising this magnetic field is of major importance. READ MORE

  5. 4. Investigation of variable Ap Stars in TESS continuous viewing zone

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Nikolaos Papakonstantinou; [2021]
    Keywords : stars: chemically peculiar; stars: magnetic fields; stars: variables; techniques: photometric; stars: early-type; stars: magnetic fields; stars: rotation;

    Abstract : .... READ MORE

  6. 5. Advanced Characterization of Exoplanet Host Stars

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Khaled Al Moulla; [2020]
    Keywords : stars: exoplanet hosts - fundamental parameters - spectroscopy: HARPS - SME; stjärnor: exoplanetvärdar - fundamentala parametrar - spektroskopi: HARPS - SME;

    Abstract : The spectroscopic determination of stellar properties is important for subsequent studies of exoplanet atmospheres. In this thesis, HARPS data for 6 exoplanet-hosting, late-type stars is processed to achieve an average signal-to-noise ratio of ~105. READ MORE