Search for dissertations about: "circumstellar interaction"

Showing result 1 - 5 of 13 swedish dissertations containing the words circumstellar interaction.

  2. 1. Supernova surroundings on circumstellar and galactic scales

    Author : Anders Nyholm; Jesper Sollerman; Peter Lundqvist; Philip James; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; supernovae; circumstellar medium; SNe Type IIn; iPTF13z; intermediate Palomar Transient Factory; active galactic nuclei; SN 2014J; Astronomy; astronomi;

    Abstract : Some stars cease to be in a bright and destructive display called a supernova. This thesis explores what we can learn about supernovae (SNe) by studying their immediate surroundings, and what the SNe can teach us about their environments. READ MORE

  4. 2. Modeling of Radio Emission from Supernovae : Application to Type Ia

    Author : Esha Kundu; Peter Lundqvist; Claes Fransson; Talvikki Hovatta; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Supernova; Circumstellar interaction; Radio emission; Astronomy; astronomi;

    Abstract : The interaction of supernova (SN) ejecta with the circumstellar medium (CSM) drives a strong shock wave into the CSM. These shocks are ideal places where effective particle acceleration and magnetic field amplification can take place. READ MORE

  5. 3. Observations of rare supernovae and their environments

    Author : Francesco Taddia; Jesper Sollerman; Maryam Modjaz; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Supernova; stellar evolution; metallicity; circumstellar interaction; Astronomy; astronomi;

    Abstract : Supernovae (SNe) are the final stage in the life of massive stars. Their explosion unbinds the progenitor star revealing its inner layers. The SN ejecta interact with the circumstellar material (CSM), providing further information on the progenitor star. READ MORE

  6. 4. The rebirth of Supernova 1987A : a study of the ejecta-ring collision

    Author : Per Gröningsson; Claes Fransson; John Danziger; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; supernovae; SN 1987A; circumstellar matter; shock waves; Astronomy and astrophysics; Astronomi och astrofysik; Astronomy; astronomi;

    Abstract : Supernovae are some of the most energetic phenomena in the Universe and they have throughout history fascinated people as they appeared as new stars in the sky. Supernova (SN) 1987A exploded in the nearby satellite galaxy, the Large Magellanic Cloud (LMC), at a distance of only 168,000 light years. READ MORE

  7. 5. Bumpy light curves of interacting supernovae

    Author : Anders Nyholm; Jesper Sollerman; Peter Lundqvist; Nils Ryde; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; iPTF13z; supernova; SN; circumstellar medium; CSM; SN Type IIn; intermediate Palomar Transient Factory; iPTF; Astronomy; astronomi;

    Abstract : A supernova (SN) is the explosive destruction of a star. Via a luminous outpouring of radiation, the SN can rival the brightness of its SN host galaxy for months or years. READ MORE