Essays about: "stars: AGB"

Showing result 1 - 5 of 12 essays containing the words stars: AGB.

  1. 1. Dust emission modelling of AGB stars

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Emelie Siderud; [2020]
    Keywords : ;

    Abstract : .... READ MORE

  3. 2. Something 3D

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Vlad Rastau; [2020]
    Keywords : 3D; AGB stars; planetary nebulae;

    Abstract : Modelling stellar structures and comparing them with observationsis a very important step when it comes to verifying our theories aboutstellar evolution. Three-dimensional reconstruction is therefore impor-tant and in the case of certain stellar types it makes for a large portionof the ongoing research. READ MORE

  4. 3. Testing the multi-epoch luminosity function of asymptotic giant branch stars in the Small Magellanic Cloud with VISTA

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Róisín O'Rourke Brogan; [2020]
    Keywords : stars: AGB; stars: late-type; stars: atmospheres; stars: variable; small magellanic cloud; magellanic system; stellar populations; model stellar populations; dwarf galaxies;

    Abstract : The physics pertaining to the asymptotic giant branch (AGB) phase of stellar evolution has been studied for many years. However, the mechanics behind many characteristics displayed at this stage are still not fully understood. READ MORE

  5. 4. Photometry of carbon star wind-modelsat solar & sub-solar metallicities

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Vlad Rastau; [2020]
    Keywords : C-type AGB; photometry; mass-loss;

    Abstract : Asymptotic giant branch stars (AGB) are cool, luminous stars withan initial mass of approximately 0.8 to 8 solar masses. Towards theend of their lives they undergo heavy mass loss, a process thoughtto be caused by dust-driven winds. When it comes to carbon-richAGB stars, i. READ MORE

  6. 5. Measuring the Characteristic Sizes of Convection Structures in AGB Stars with Fourier Decomposition Analyses : the Stellar Intensity Analyzer (SIA) Pipeline.

    University essay from Uppsala universitet/Teoretisk astrofysik

    Author : Miquel Colom i Bernadich; [2020]
    Keywords : Asymptotic Giant Branch; AGB; red giants; stars; stellar convection; Fourier analysis; convection cells;

    Abstract : Context. Theoretical studies predict that the length scale of convection in stellar atmospheres isproportional to the pressure scale height, which implies that giant and supergiant stars should have convection granules of sizes comparable to their radii. READ MORE