Essays about: "Spectroscopy and stars"

Showing result 11 - 15 of 32 essays containing the words Spectroscopy and stars.

  1. 11. Accurate Abundances of Giant Stars in the Local disk: A manual analysis of IR APOGEE spectra

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Ivalu Barlach Christensen; [2020]
    Keywords : Galactic Chemical Evolution; Astrophysics; Astronomy; IR Spectroscopy; Milky Way; Abundance; Physics and Astronomy;

    Abstract : Purpose: In order to study the Galactic Chemical Evolution, elemental abundances are needed. The purpose of this work is to investigate the chemical evolution of the Milky Way by determining several elemental abundances of giants in the local disk. READ MORE

  3. 12. Detailed chemical abundances of neutron-capture elements - from 523 local giant stars

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Rebecca Forsberg; [2019]
    Keywords : The Milky Way galaxy; Abundances; High-resolution spectroscopy; Neutron-capture elements; Physics and Astronomy;

    Abstract : Purpose: The purpose of this work is to determine the abundances of neutron-capture elements in solar neighborhood giant stars. This enables constraints to be put on the the cosmic origin of these elements. READ MORE

  4. 13. Spectroscopy of the Globular Cluster M30

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Kilian Hikaru Scheutwinkel; [2019]
    Keywords : Spectroscopy; Globular Cluster; M30;

    Abstract : Globular Clusters contain very old metal-poor stars in different evolutionary stages evolved from the same primordial cloud. Signatures of atomic in stellar interiors are studied in the metal-poor GC M30. Furthermore, traces of cluster internal pollution depleting alpha elements e.g. READ MORE

  5. 14. Conditions for detecting population III galaxies with next-generation telescopes

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Emma Fransson; [2019]
    Keywords : population III stars galaxies WFIRST;

    Abstract : Through the spectral synthesis model YGGDRASIL, developed by E. Zackris- son et al. 2011, luminosities for the chemically pristine population III galaxies are retrieved and compared to the capabilities of the upcoming infrared telescopes, in particluar the Wide Field InfraRed Survey Telescope (WFIRST). READ MORE

  6. 15. Abundances of iron-peak elements in disk and bulge giant stars from high-resolution optical spectra

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Maria Lomaeva; [2018]
    Keywords : Physics and Astronomy;

    Abstract : Context. The formation and evolution of the Galactic bulge and the Milky Way is still a debated subject. Observations of, e.g. READ MORE