Sökning: "Molecular clouds"

Visar resultat 6 - 10 av 51 avhandlingar innehållade orden Molecular clouds.

1. 6. Molecular Clouds in Starburst Galaxies

   Författare :Susanne Aalto; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Starbursts in the centres of galaxies are believed to be caused by funneling of gas towards the inner regions. Gravitational interactions between galaxies are known to cause vast rearrangements of their structure as well as induce bursts of star formation in their nuclear regions. LÄS MER

3. 7. Chemodynamical Simulations of Star-Forming Molecular Clouds

   Författare :Chia-Jung Hsu; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; methods:numerical; magnetohydrodynamics; stars:formation; astrochemistry; ISM:clouds;

   Sammanfattning : Stars are known to form from dense, dusty clumps and cores of molecular clouds. However, there is no consensus on a theory that can predict the rate of star formation, its clustering, and the conditions needed for massive stars to be born. A major challenge is how to observe and characterise the gas that is the fuel for star formation. LÄS MER

4. 8. Molecular clouds and star formation in galaxies

   Författare :Tommy Wiklind; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; molecular radio lines; interstellar medium; Early type galaxies; galaxy kinematics and dynamics; spiral galaxies;

   Sammanfattning : .... LÄS MER

5. 9. Studies of Interstellar Molecular Gas in the Magellanic Clouds

   Författare :Arto Heikkilä; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; abundances-Galaxies; evolution; molecules-Galaxies; Magellanic Clouds-Interstellar medium; molecules-Galaxies; interstellar medium-Galaxies;

   Sammanfattning : Results of observational studies of interstellar molecular gas clouds in the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC), two nearby metal-poor and dust-poor dwarf galaxies, are presented. Spectral line radiation emitted by interstellar molecules has been used to probe the physical state and the chemical composition of individual molecular clouds. LÄS MER

7. 10. Studies of molecular clouds at the Galactic centre

   Författare :Roland Karlsson; Kambiz Fathi; Aage Sandqvist; Andreas Eckart; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Galactic centre; Astronomy; astronomi;

   Sammanfattning : Interstellar molecular clouds play an essential role in the Universe. Such clouds are invoked for the production and destruction of stars, galaxies and gas and also for energy transport in galaxies. LÄS MER