Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sf2a.conf..609m&link_type=abstract
SF2A-2005: Semaine de l'Astrophysique Francaise, meeting held in Strasbourg, France, June 27 - July 1, 2005, Edited by F. Casoli
Astronomy and Astrophysics
Astrophysics
Scientific paper
The Stellar Population Synthesis Model of the Galaxy, developed in Besançon, along with the Two Micron All Sky Survey, is used to calculate the extinction distribution along the line of sight. The Galaxy model is used to provide the intrinsic colour of stars and their probable distances, so that the near infrared colour excess, and hence the extinction, may be calculated and its distance evaluated. This technique has now been applied to over 95000 lines of sight, each separated by 15 arcmin, in the inner Galaxy (|l| ≤ 100°, |b| ≤ 15°). These fields have been combined to form a three dimensional array of extinction values from which the large scale distribution of interstellar material in the inner Galaxy can be deduced. This resulting extinction map will be useful for studies of the inner Galaxy as well as for more local studies of stellar populations.
Marshall Douglas J.
Picaud Sébastien
Reyle Céline
Robin Annie C.
Schultheis Mathias
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