Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012jsara...5...43j&link_type=abstract
Journal of the Southeastern Association for Research in Astronomy, vol. 5, p. 43-50
Astronomy and Astrophysics
Astronomy
Bok Globules, Extinction, Color-Index, Reddening
Scientific paper
Extinction effects are ubiquitous in the interstellar medium of galaxies. In particular, extinction due to molecular clouds can significantly change the color and brightness of background or embedded ob- jects. The structure of molecular clouds is an important observable, relevant for the initial conditions under which star formation takes place. Mapping the effects of extinction across a molecular cloud can be used to deduce its internal structure. We present such an analysis for several Bok Globules which we observed with the 0.9m SARA telescope at Kitt Peak National Observatory. In particular, we investigate the structure of CB188, whose geometry is such that it can be approximated by a spherical model. We find that the model for a globule with a constant density profile is inconsistent with what we observe; this solution has led up to explore other models with more complex density structures.
Hartmann Dieter H.
Johnson Andrew M.
Updike Adria
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