Essays about: "habitable zone"

Showing result 1 - 5 of 10 essays containing the words habitable zone.

  1. 1. Assessing the relationship between hypoxia and life on Earth, and implications for the search for habitable exoplanets

    University essay from Lunds universitet/Geologiska institutionen

    Author : Thomas Evan Smith; [2022]
    Keywords : hypoxia; hypoxia-inducible factors; atmospheric oxygen; multicellularity; embryogenesis; exoplanets; white dwarfs; oxygen fugacity; Earth and Environmental Sciences;

    Abstract : Atmospheric oxygen at the level of present-day Earth (21%) is generally regarded as permissive for the development and survival of complex multicellular life, such as animals. The hypothesis that oxic conditions are conducive for multicellular life has subsequently been applied to the search for life elsewhere in the universe, with planets exhibiting atmospheric oxygen of a similar level to Earth being considered as candidates for habitability. READ MORE

  2. 2. Post-Main Sequence Habitability for Outer Solar System Moons

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Viktor Sparrman; [2022]
    Keywords : Habitability; Habitable Zone; Greenhouse Effect; Outer moons; Red Giant Branch; Horizontal Branch; Asymptotic Giant Branch; solar evolution;

    Abstract : The search for extra-terrestrial life is guided by the classification of promising candidate worlds. In this classification the habitable zone acts as a measure for the perceived habitability of a circumstellar body. Habitable zone definitions vary between using a conservative and an optimistic limit. READ MORE

  3. 3. Have Radio Velocity Surveys Missed Any Planets?

    University essay from Lunds universitet/Astronomi

    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. 4. The Relationship Between a Variable Orbital Eccentricity and Climate on an Earth-Like Planet

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Ellinor Wanzambi; [2019]
    Keywords : climate; climate models; exoplanets; Earth-like planets; klimat; klimatmodeller; exoplaneter; jordliknande planeter;

    Abstract : By using climate models based on the Earth’s climate, you can get information about how the climate on exoplanets can look like. ROCKE-3D is a general circulation model based on ModelE2, which is used for simulations of modern and prehistoric Earth’s climate. READ MORE

  5. 5. Dynamical Stability of Planetary Systems

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Aikaterini Stergiopoulou; [2017]
    Keywords : ;

    Abstract : The study of dynamical stability in planetary systems has become possible during the last few decades due to the development of numerical methods for long-term integrations of N-body systems. Since the 90’s the number of exoplanet detections has been increased significantly, making the simulations of other real planetary systems besides the Solar System feasible. READ MORE