Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esasp.315...35s&link_type=abstract
In ESA, Formation of Stars and Planets, and the Evolution of the Solar System p 35-40 (SEE N91-18922 10-90)
Astronomy and Astrophysics
Astronomy
Cosmic Dust, Interstellar Extinction, Interstellar Matter, Star Formation, Interstellar Chemistry, Nebulae, Ultraviolet Absorption, Ultraviolet Astronomy
Scientific paper
The Coalsack is compared to three other dark clouds similar in mass and distance from the Sun, but with very different star formation efficiencies. Nearly all investigations up to date found the Coalsack to be a stable and inactive nebula without any sign for young stellar objects. A model of interstellar extinction curves is applied to stars associated with the clouds under consideration. It is found that in clouds with active star formation the UV extinction, called U(x), is drastically reduced compared to the general interstellar medium, whereas the variations in the strength of the 2200 angstrom bump component are much smaller. These large variations of U(x) can occur either in violent or in calm environments, suggesting different depletion processes of the particles responsible for the UV extinction.
No associations
LandOfFree
The Coalsack: Interstellar dust and star formation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Coalsack: Interstellar dust and star formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Coalsack: Interstellar dust and star formation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-840248