Sökning: "Astronomi"

Visar resultat 6 - 10 av 581 uppsatser innehållade ordet Astronomi.

1. 6. Analys och vidareutveckling av simuleringsmiljö för LFC-reglering inom NBM-programmet

   Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Marcus Baumann; [2023]
   Nyckelord :Load frequency control; Power system simulator; Nordic Balancing Model; ARISTO;

   Sammanfattning : The control and balancing measures for achieving safe grid operation in the Nordic power grid is becoming increasingly complex with larger penetrations of renewable power, new guidelines aiming to increase digitalisation and automation alongside integration into European balancing platforms. The power grid operators are faced with new challenges for safely operating the grid leading to an increased need for theoretical and practical education. LÄS MER

3. 7. Warm dark matter simulations and 21cm astronomy

   Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Melker Marminge; [2023]
   Nyckelord :Warm Dark Matter; N-body Simulation; Power Spectrum; Neutral Hydrogen; Cosmology;

   Sammanfattning : The recent boom in 21cm astronomy has piqued the interest of many, especially cosmologists realizing its applications in their field. This study aims to determine if 21cm astronomy is a good tool for testing the validity of keV WDM models, as well as creating a code capable of simulating keV WDM models from an existing CDM code. LÄS MER

4. 8. Svenska gymnasieelevers uppfattningar om storlek och avstånd i universum

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Fysiska institutionen; Lunds universitet/Institutionen för utbildningsvetenskap

   Författare :Karolin Nilsson; [2023]
   Nyckelord :Astronomy; Misconceptions; Educational Research; Science Education; High School Students; Physics and Astronomy;

   Sammanfattning : This study aims to investigate how students in Swedish upper secondary school conceptualize sizes and distances of some astronomical objects, such as planets and stars, as well as the students’ general knowledge of the objects themselves. The study uses a constructivist framework and explores how well the students’ conceptions match the scientific facts and definitions, and what misconceptions and alternative conceptions they hold. LÄS MER

5. 9. Magnetic field of the magnetic chemically peculiar star V1148 Ori

   Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

   Författare :Kristoffer Pettersson; [2023]
   Nyckelord :chemically peculiar star; magnetic fields; deconvolution; zeeman effect; polarization;

   Sammanfattning : This project aims to obtain and interpret the measurements of the mean longitudinal magnetic field of the chemically peculiar star V1148 Ori. To achieve this aim 12 spectropolarimetric observations obtained by the CFHT using the spectropolarimeter ESPaDOnS were used. LÄS MER

7. 10. Resolving the smallest scale of star formation at Cosmic Noon with JWST : Star-forming clumps in a galaxy lensed by Abell 2744

   Master-uppsats, Stockholms universitet/Institutionen för astronomi

   Författare :Annalena Pless; [2023]
   Nyckelord :star formation; star-forming clumps; galaxy evolution;

   Sammanfattning : At higher redshift galaxies exhibit increasingly irregular and clumpy morphologies, withstar-forming clumps dominating the FUV output of their host galaxies thus being inti-mately related to star formation and the formation and evolution of galaxies. This workexamines star-forming clumps in a remarkable, young spiral galaxy at Cosmic Noon witha redshift ofz= 2. LÄS MER