Galactic Extinction Model: New Developments

Details Galactic Extinction Model: New Developments Galactic Extinction Model: New Developments

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.576..167d&link_type=abstract

"Proceedings of the Gaia Symposium "The Three-Dimensional Universe with Gaia" (ESA SP-576). Held at the Observatoire de Paris-Me

Physics

1

Gaia Simulations, Galaxy Structure, Dust, Extinction

Scientific paper

Progress toward a new three-dimensional model of the dust distribution in the Milky Way is presented that will be used to construct a new extinction model over the disc of the Galaxy. The new dust model currently under construction will include an eccentric molecular ring/central hole in the disc and temperature gradients associated with the spiral arms, as expected from the heating of young stars. Description of the dust within a few kiloparsecs of the Sun, associated with the local Orion arm, is constrained by recent observations of nearby HII regions.

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