Sökning: "orbital system"

Visar resultat 21 - 25 av 84 uppsatser innehållade orden orbital system.

  1. 21. Functional Modelling and Simulation of the Off-Design Operation of a Cryogenic Engine

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Brice Metzinger; [2022]
    Nyckelord :;

    Sammanfattning : The Exploration Company is a French and German start-up that develops and operates Nyx, an orbital vehicle that also has a lunar version. This thesis focuses on the modeling and simulation of the off-design operation of the cryogenic engine of Nyx. LÄS MER

  3. 22. Stellar Encounters at the Galactic Centre

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Roberts Fisers; [2022]
    Nyckelord :Galaxy; encounter; SPH; NSC; Physics and Astronomy;

    Sammanfattning : Using methods of smoothed particle hydrodynamics (SPH) an N -body simulation was set-up to investigate stellar encounters between a 1 solar-mass main sequence (MS) star, modeled after the Sun, and a 0.6 solar-mass white dwarf (WD). This was done primarily to investigate the assumptions made by Mastrobuono-Battisti et al. LÄS MER

  4. 23. Design of a Satellite Constellation Intended for Use with a Small User Terminal

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Mathias Axelsson; [2022]
    Nyckelord :;

    Sammanfattning : Satellite constellations intended for communications services are becoming increasingly relevant with multiple companies such as Starlink and OneWeb launching constellations consisting of hundreds or thousands of satellites. This thesis investigated how such a constellation can be designed for a small user terminal with a diameter of approximately 15 cm. LÄS MER

  5. 24. Exploring the Diversity of Exoplanets

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Rebecka Svensson; [2021]
    Nyckelord :Exoplanets; Super-Earth; Sub-Neptune;

    Sammanfattning : The search for extrasolar planets had been ongoing for many years when Mayorand Queloz discovered 51 Pegasi b in 1995. It was a giant gas planet similar to Jupiter, but with a larger radius and of only half of Jupiter’s mass. Theso called Hot Jupiter was observed to orbit its host star 7 times closer thanMercury is orbiting the Sun. LÄS MER

  7. 25. The visibility of double neutron star binaries to LISA

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Anatole Storck; [2021]
    Nyckelord :gravitational waves; LISA; neutron stars; orbital simulations; Runge-Kutta method; Physics and Astronomy;

    Sammanfattning : Double neutron star binaries (DNSBs) in the mHz gravitational wave (GW) regime are an important group of objects which the GW detector LISA will be able to observe. The detection and parametrization of these objects will help develop our current understanding of neutron star formation and evolution. LÄS MER