Essays about: "Orbital period"

Showing result 6 - 10 of 23 essays containing the words Orbital period.

1. 6. Stellar Encounters at the Galactic Centre

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Roberts Fisers; [2022]
   Keywords : Galaxy; encounter; SPH; NSC; Physics and Astronomy;

   Abstract : 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. READ MORE

3. 7. Have Radial Velocity Surveys Missed Any Planets?

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Fysiska institutionen

   Author : Shah Raj; [2021]
   Keywords : radial velocity survey; transit method; exoplanet; habitable zone; habitable zone boundaries; HZ; early Mars; recent Venus; stability; instability; chaos; REBOUND; MEGNO; MEGNO maps; Hill sphere; stable systems; unstable systems; Physics and Astronomy;

   Abstract : The project was aimed at numerically assessing exoplanetary systems to distinguish their capabilities of hosting additional planets. The shortcomings of the radial velocity method sometimes causes hindrance in the detection of terrestrial planets. READ MORE

4. 8. Capture into mean motion resonance

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Kaltrina Kajtazi; [2021]
   Keywords : MMR; Mean motion resonance; Planetary dynamics; First order MMR; Numerical integration with N-body; Physics and Astronomy;

   Abstract : Orbital or mean motion resonance (MMR) occurs when the orbital period ratio between two planets is close to a ratio of small integers. MMR can protect planets from collisions and affects the overall final architecture of the system. READ MORE

5. 9. The Milky Way and its Exoplanets

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Jesper Nielsen; [2021]
   Keywords : Planets and Satellites; Exoplanets; Occurrence Rates; Physics and Astronomy;

   Abstract : The detections of over 4000 exoplanets as of today has shown that they exist in a wide range of different configurations, otherwise known as architectures. Recently, studies have been made trying to link the environment of host stars to the architectures of their planetary systems and have found that the architectures of planetary systems may not necessarily be uniform in the Milky Way. READ MORE

6. 10. Simulation of Precise Automatic Radio Frequency GroundStation Tracking For S-Band Satellites

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Akila Wajirakumara; [2021]
   Keywords : ;

   Abstract : Satellites are often known for possessing invariable motion causing its apparent position to drift in the sky from the perspective of a ground station. If these irregular drifts are not compensated, the performance of the communication link would be greatly affected. Hence, the satellite motion has to be tracked by the ground station antenna. READ MORE