Sökning: "Kalevi Mattila"

Hittade 2 avhandlingar innehållade orden Kalevi Mattila.

1. 1. Dusty Globules and Globulettes

   Författare :Tiia Grenman; Hans Weber; Erik Elfgren; Kalevi Mattila; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Applied Physics; Tillämpad fysik;

   Sammanfattning : Interstellar gas and dust can condense into clouds of very different size, ranging from giant molecular cloud complexes to massive, isolated, dark cloudlets, called globules with a few solar masses.This thesis focuses on a new category of small globules, named globulettes. LÄS MER

3. 2. Extinction in Molecular Clouds : Case of Barnard 335

   Författare :Sven Olofsson; Göran Olofsson; Kalevi Mattila; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ISM; interstellar medium; extinction; molecular cloud; Astronomy; astronomi; Astronomy; astronomi;

   Sammanfattning : The Bok globule B335 is a small molecular cloud in the solar neighbourhood near the galactic plane. The aim for this three-paper-study is to construct and analyze the extinction for this globule. The method we apply is to use the light from field stars behind the cloud in broadband filters ranging from UV to the mid-infrared. LÄS MER