Essays about: "stars: late-type"

Found 3 essays containing the words stars: late-type.

1. 1. 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

3. 2. 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

4. 3. The Variability of the R Magnitude in Dynamical Models of AGB Stars

   University essay from Uppsala universitet/Teoretisk astrofysik

   Author : Roisin Brogan; [2019]
   Keywords : stars: AGB; stars: late-type; stars: atmospheres; stars: variable;

   Abstract : This report will first give a brief background on asymptotic giant branch (AGB) stars and the characteristics that make them interesting to study. Some methods and tools used in the field are then introduced, before the photometric variability of these stars is investigated. READ MORE