Search for dissertations about: "Peter Lundqvist"

Showing result 6 - 10 of 11 swedish dissertations containing the words Peter Lundqvist.

  2. 6. 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

  4. 7. 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

  5. 8. Search for lensed supernovae behind the galaxy cluster Abell 1689

    Author : Tanja Petrushevska; Rahman Amanullah; Ariel Goobar; Peter Lundqvist; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; lensed supernovae; gravitational lensing; galaxy cluster Abell 1689; Astronomy; astronomi; fysik; Physics;

    Abstract : Distant supernovae probe the history of cosmic expansion and star formation, and provide important information on their progenitor models. Investigation of supernovae type Ia for  are needed to reveal any evolution in their intrinsic properties, and thus their utility as existing distance indicators. READ MORE

  6. 9. Social marketing for injury prevention : changing risk perceptions and safety-related behaviors among New York farmers

    Author : Julie Sorensen; Maria Emmelin; Hans Stenlund; John May; Peter Lundqvist; Umeå universitet; []
    Keywords : social marketing; behavior models; roll-over protective structures; tractor overturns; farm safety; occupational health; safety intervention; retrofitting incentives; health campaigns; intervention evaluation; epidemiologi; Epidemiology;

    Abstract : In the U.S., work-related death is an all too familiar occurrence on farms. Tractor overturns continue to be the most frequent cause of these fatalities. READ MORE

  7. 10. Observations of young core collapse supernova remnants

    Author : Anestis Tziamtzis; Lundqvist Peter; Sergey Zharikov; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; supernova remnants; Crab; SN 1987A; Astronomy; Astronomi; Astronomy; astronomi;

    Abstract : Studies of young remnants offer an opportunity to test theoretical models of stellar evolution, explosion models and nucleosynthesis, as well as our understanding of the compact objects in the centre of the exploded stars.The first part of the thesis involves observations of the Crab nebula. READ MORE