Sökning: "circumstellar radio lines"

Hittade 5 avhandlingar innehållade orden circumstellar radio lines.

  1. 1. Modelling of molecular clouds

    Författare :Per Bergman; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; molecular radio lines; circumstellar matter; interstellar medium; circumstellar radio lines; H 11 regions; abundances; interstellar matter; galaxies; interstellar radio lines;

    Sammanfattning : .... LÄS MER

  3. 2. Companion wind shaping in binaries involving an AGB star

    Författare :Lam Doan; Sofia Ramstedt; Eric Lagadec; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; AGB and post-AGB stars; mass-loss; radio lines; binaries; wind shaping; Astronomy; Astronomi;

    Sammanfattning : Stars of initial masses between 0.8-8 M☉ will become "asymptotic giant branch" (AGB) stars during the final stages of their evolution. During this phase, the stars are characterized by low velocity and high-density winds. LÄS MER

  4. 3. Studies of late-type stars and massive star formation regions using masers

    Författare :Jiyune Yi; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stars - stars: AGB and post-AGB; matter - techniques: interferometric; ISM: HII regions; circumstellar matter; molecules - masers - radio lines: ISM; formation; individual TX Camelopadalis ;

    Sammanfattning : .... LÄS MER

  5. 4. The circumstellar envelope of the S-type AGB star π1 Gruis

    Författare :Doan Duc Lam; Kay Justtanont; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; AGB and post-AGB stars: mass-loss binaries: general - radio lines: stars - stars: general stars: individual: π1 Gru.; Astronomy; Astronomi;

    Sammanfattning : .... LÄS MER

  7. 5. X-ray emission from supernova shock waves

    Författare :Tanja Nymark; Claes Fransson; Cecilia Kozma; Jacco Vink; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astronomy and astrophysics; Astronomi och astrofysik; Astronomy; astronomi;

    Sammanfattning : A theoretical study of the interaction between supernovae and their surroundings is presented.Supernovae are the endpoint of the life of massive stars, and are the dominant contributors to the chemical evolution of the Universe. During its life a massive star greatly modifies its environment. LÄS MER