Sökning: "Jonathan Star"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Jonathan Star.

1. 1. The visibility of stellar transients in the Galactic Centre

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

   Författare :Jonathan Ström; [2024]
   Nyckelord :Physics and Astronomy;

   Sammanfattning : A semi-analytical simulation was developed to evaluate the K-band magnitudes of Red Giants [0.96 - 1.02 M⊙] orbiting the supermassive black hole in the galactic centre. The model assumed star formation between 10-12 Gyrs ago and by following the IMF and applying a random age condition, a stellar population was created. LÄS MER

3. 2. Colliding Galaxies in a (Nut)Shell

   Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Fysiska institutionen

   Författare :Jonathan Petersson; [2022]
   Nyckelord :shell galaxies; simulations; starbursts; quenching; mergers; Physics and Astronomy;

   Sammanfattning : Galaxy interactions and mergers are natural recurring events in the current cosmological paradigm, events that often coincide with starbursts and enhanced star formation activity. To understand why that is, one can use idealised (non-cosmological) merger simulations, which provide freedom to recreate specific tidally distorted galaxies, and analysis of the time evolution and underlying physics of the star formation activity at a high spatial resolution. LÄS MER

4. 3. Konfigurator-verktygets påverkan på försäljningsprocessen : En kvalitativ studie som fokuserar på försäljningsprocessen samt kundrelationerna

   Magister-uppsats, Umeå universitet/Företagsekonomi

   Författare :William Sandenäs; Jonathan Hägglund; [2022]
   Nyckelord :Konfigurator-verktyg; Digitalisering; Försäljningsprocess; Effektivitet;

   Sammanfattning : Under de senaste två decennierna har digitaliseringens närvaro blivit allt mer påtaglig och idag är den en viktig del i försäljningsprocessen. Ett vanligt digitalt verktyg som ofta används i samband med försäljning är konfiguratorer. LÄS MER

5. 4. An introduction to some ordinary differential equations governing stellar structures

   Kandidat-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten)

   Författare :Yani di Giovanni; [2019]
   Nyckelord :Mathematics and Statistics;

   Sammanfattning : The Lane-Emden equation is a non-linear differential equation governing the equilibrium of polytropic stationary self-gravitating, spherically symmetric star models; $${\frac {1}{\xi ^{2}}}{\frac {d}{d\xi }}\left({\xi ^{2}{\frac {d\theta }{d\xi }}}\right)+\theta ^{n}=0.$$ In the isothermal cases we have the Chandrasekhar equation: $${\frac {1}{\xi ^{2}}}{\frac {d}{d\xi }}\left({\xi ^{2}{\frac {d\psi}{d\xi }}}\right)-e^{-\psi}=0$$ After having derived these models, we will go through all cases for which analytic solutions are achievable. LÄS MER

7. 5. Construction of Robot for Visual Demonstration at Conferences and Fairs

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

   Författare :Jonathan Haraldsson; Julia Nordin; [2018]
   Nyckelord :Robot; Star Wars; BB8; Embedded Systems; 3D printer; 3D-print; Robot; Star Wars; BB8; inbyggda system; 3D-skrivare; 3D-utskrift;

   Sammanfattning : A demonstration robot for conferences and fairs has been built from scratch. The demonstration robot is meant to create lasting impressions at the company booth at conferences or fairs. Thus, the robot needs traits that attract people to the booth and makes sure they remember that company. LÄS MER