Sökning: "HII regions"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden HII regions.

  1. 1. 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

  3. 2. Star Formation and feedback at key physical scales for galaxy evolution

    Författare :Lorenza Della Bruna; Angela Adamo; Göran Östlin; Monica Relaño Pastor; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Galaxies; Star Formation; Stellar Feedback; HII regions; ISM; Astronomy; astronomi;

    Sammanfattning : Feedback from young, massive stars plays an essential role in the self-regulation of star formation in galaxies, and in shaping the galaxies' global properties. This phenomenon originates at small scales, surrounding the stars, but has been observed to be effective up to galactic-wide scales. LÄS MER

  4. 3. Instrumental and observational studies in radio astronomy : low noise amplifier design and methanol maser research

    Författare :Vincent Minier; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; circumstellar matter; HEMT; matching circuitry design; techniques: interferometric; masers; microwave; low noise amplifier; HII regions; stars: formation;

    Sammanfattning : .... LÄS MER

  5. 4. Observations and astrophysical modelling of the interstellar medium

    Författare :Achim Tappe; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ISM:individual: Gum nebula ; emmission lines; quasars: individual: PKS B2145 067 ; HII regions; quasars: absorption lines; interstellar medium ISM : general; stars: individual: Zeta Puppis ;

    Sammanfattning : .... LÄS MER

  7. 5. Chemical and dynamical study towards the UC HII region Monoceros R2

    Författare :Sandra Treviño Morales; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Star formation — Interstellar medium — Filamentary structure — Dynamics — Chemistry — Photon-dominated regions — Monoceros R2.;

    Sammanfattning : One of the first signposts of high-mass star formation is the presence of compact regions of ionized gas (called HII regions), surrounded by layers of atomic and molecular gas (photon-dominated regions or PDRs). The study of the properties (e. g. LÄS MER