Sökning: "Filip Jennerholm Hammar"

Hittade 2 uppsatser innehållade orden Filip Jennerholm Hammar.

  1. 1. Inference of chromospheric magnetic fields with the Ca II 8542 line

    Master-uppsats, Uppsala universitet/Teoretisk astrofysik

    Författare :Filip Jennerholm Hammar; [2014]
    Nyckelord :Sun: chromosphere; Sun: magnetic topology; polarization; weak field approximation;

    Sammanfattning : Several techniques exist for retrieving and studying information about the properties of the Solar atmosphere from the polarization state of spectral lines. These are commonly called spectral diagnostics. LÄS MER

  3. 2. Dust driven winds of cool giant stars : dependency on grain size

    Kandidat-uppsats, Teoretisk astrofysik

    Författare :Filip Jennerholm Hammar; [2011]
    Nyckelord :stars: AGB; stars: atmospheres; stars: carbon; stars: mass loss; stars: grain size; asymptotiska jättegrenen; kolstjärnor; stjärnor: massförlust;

    Sammanfattning : Aim. In this project, theoretical models of dust driven winds of asymptotic giant branch (AGB) stars with effective temperatures within a range of 2400 − 3200 [K] and relative carbon-to-oxygen abundance C/O > 1 are studied. LÄS MER