Sökning: "Calum Kvernes Macpherson"

Hittade 2 uppsatser innehållade orden Calum Kvernes Macpherson.

1. 1. The quest for a classical bulge - a study of kinematics, abundances, and ages using microlensed dwarf stars and Gaia

   Master-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

   Författare :Calum Kvernes Macpherson; [2023]
   Nyckelord :Bulge; Milky Way; Kinematics; Galpy; Dwarf Stars; Physics and Astronomy;

   Sammanfattning : Context: We present an kinematical analysis of 90 F and G type dwarf, turn-off, and subgiant stars in the Galactic bulge. These stars were observed with high-resolution spectrographs during gravitational microlensing events This allowed for their ages, abundances, and radial velocities to be ascertained while they were significantly brighter. LÄS MER

3. 2. Carbon Abundance in the Milky Way Galaxy

   Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

   Författare :Calum Kvernes Macpherson; [2021]
   Nyckelord :Carbon; Abundance; Milky Way; Chemical Evolution; Physics and Astronomy;

   Sammanfattning : Carbon is the fourth most abundant element after hydrogen, helium and oxygen. It is a product of stellar nucleosynthesis as well as it being an important bio signature for life; this makes the analysis of carbon very fundamental. LÄS MER