Sökning: "astrochemistry"

Visar resultat 6 - 10 av 16 avhandlingar innehållade ordet astrochemistry.

  1. 6. Observations of molecules in luminous infrared galaxies

    Författare :Francesco Costagliola; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Interstellar medium; Galaxies; Radio astronomy; Astrochemistry;

    Sammanfattning : .... LÄS MER

  3. 7. Synthesis of complex organics via molecular growth mechanisms : Combined experimental and theoretical studies on ion-neutral reactions of C2H2N+ with ubiquitous hydrocarbons in Titan's ionosphere

    Författare :Pantea Fathi; Wolf Geppert; Paul Scheier; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Astrochemistry; Complex molecules; Ion-neutral reactions; Mass spectrometry; Planetary and satellite atmospheres; Titan; kemisk fysik; Chemical Physics;

    Sammanfattning : To provide insights on the molecular growth mechanisms leading to large carbon and nitrogen-bearing species in Titan’s ionosphere, laboratory measurements of ion-neutral reactions were conducted and the results are presented in the following doctoral dissertation. The product ions of the C2H2N+ reactions with saturated and unsaturated neutral hydrocarbons have been investigated using Guided Ion Beam Mass Spectrometer (GIB-MS). LÄS MER

  4. 8. Dissociative Recombination of Astrochemically Interesting Ions

    Författare :Mathias Hamberg; Wolf Geppert; Mats Larsson; Stephan Schlemmer; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dissociative Recombination; Astrochemistry; Chemical physics; Kemisk fysik; kemisk fysik; Chemical Physics;

    Sammanfattning : In this thesis the major work described concerns experimental determination of the dissociative recombination (DR) reaction for several molecular ions of astrochemical interest. DR is the process where an electron recombines with a molecular ion to form an excited neutral that disintegrates into two or more neutral fragments to release the gained excess energy. LÄS MER

  5. 9. Observations and modelling of interstellar chemistry : preparatory studies for the Odin satellite

    Författare :Anders Nilsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; interstellar medium; astrochemistry; chemical simulations; molecular clouds;

    Sammanfattning : .... LÄS MER

  7. 10. Quantum Chemical Exploration of Nitriles in Prebiotic Chemistry and Astrobiology

    Författare :Hilda Sandström; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; metadynamics; astrochemistry; iminoacetonitrile; hydrogen cyanide; acrylonitrile; azotosome; Titan;

    Sammanfattning : The Universe hosts countless different chemical environments, such as planets, moons, comets and the interstellar medium. The diverse pressures, temperatures and chemical compositions of these environments make a wide variety of processes possible. LÄS MER