Essays about: "Observatory"

Showing result 21 - 25 of 78 essays containing the word Observatory.

  1. 21. Past the freezing point?

    University essay from Lunds universitet/Statsvetenskapliga institutionen

    Author : Sofia Inghe-Palmqvist; [2021]
    Keywords : The Arctic; China; Unites States of America; geopolitics; discourse analysis; Law and Political Science;

    Abstract : The political climate in the Arctic is changing in tandem with the world’s climate. As the ice thaws and leaves a previously frozen sea open, it likewise opens up for new opportunities as estimated abundances of resources become reachable for the first time. READ MORE

  3. 22. Investigations into neutrino flavor reconstruction from radio detector data using convolutional neural networks

    University essay from Uppsala universitet/Högenergifysik

    Author : Oscar Ericsson; [2021]
    Keywords : neutrino; neutrino flavor; flavor reconstruction; radio technique; deep learning; neural network;

    Abstract : As the IceCube Neutrino Observatory seeks to expand its sensitivity to high PeV-EeV energies by means of the radio technique, the need for fast, efficient and reliable reconstruction methods to recover neutrino properties from radio detector data has emerged. The first recorded investigation into the possibilities of using a neural network based approach to flavor reconstruction is presented. READ MORE

  4. 23. Characterisation of Low-Level Jets and their Influence on Low-Level Clouds over the Baltic Sea; Östergarnsholm Observatory, Sweden

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Johan Lundberg; [2021]
    Keywords : Low-level jets; Low-level clouds; LLJs; LLCs; Boundary layer; ABL; CBH; Lidar; Ceilometer; Turbulent intensity; Physics and Astronomy;

    Abstract : In this study, about two years of data from Östergarnsholm in the Baltic Sea are used to analyse offshore low-level clouds (LLCs) influenced by low-level jets (LLJs) in the marine atmospheric boundary layer. The LLJs are passages of strong horizontal winds near the surface and are measured using a Doppler LiDAR, which provides information about the wind speed and wind direction up to 300 meters. READ MORE

  5. 24. Analysis of stellar spectra with machine learning

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Alvaro Segovia Otero; [2020]
    Keywords : Galactic Archaeology; machine learning; chemical abundances; FGK stars; Physics and Astronomy;

    Abstract : Researchers in the field of Galactic Archaeology have entered the era of industrial revolution. Upcoming surveys are planning on observing tens of millions of stars and high precision and accuracy must be ensured when deriving their stellar parameters and elemental abundances. READ MORE

  6. 25. A Close Look at the Transient Sky in a Neighbouring Galaxy

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Kiran Tikare; [2020]
    Keywords : Astrophysical Transients; Optical Transients; Microlensing; Variable Stars; Andromeda Galaxy; Forced Aperture Photometry; Time Domain Astronomy; Sky Survey; Zwicky Transient Facility; Machine Learning; Big Data Science;

    Abstract : Study of the time variable sources and phenomena in Astrophysics provides us with important insights into the stellar evolution, galactic evolution, stellar population studies and cosmological studies such as number density of dark massive objects. Study of these sources and phenomena forms the basis of Time Domain surveys, where the telescopes while scanning the sky regularly for a period of time provides us with positional and temporal data of various Astrophysical sources and phenomena happening in the Universe. READ MORE