A Computerized Model of Large-Scale Visual Interstellar Extinction

Details A Computerized Model of Large-Scale Visual Interstellar Extinction A Computerized Model of Large-Scale Visual Interstellar Extinction

Nov 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....114.2043h&link_type=abstract

Astronomical Journal v.114, p.2043

Astronomy and Astrophysics

Astronomy

136

Extinction, Dust, Methods: Analytical

Scientific paper

A numerical algorithm has been developed for calculating three-dimensional visual interstellar extinction and its error from inputs of Galactic longitude, Galactic latitude, and distance. The code synthesizes the results of several published studies and can be used both for making corrections to individual observations and for correcting statistical samples. The studies have been modified to introduce a statistical extinction correction at large (poorly-sampled) distances, and to truncate values at the (assumed) edge of the Milky Way. When combined, the studies allow individual absorbing clouds in the interstellar medium to be identified within S kpc. Several observational selection biases are noted and discussed in view of this combined analysis. The FORTRAN-coded algorithm EXTINCT.FOR (v. 2.0.2) can be obtained via anonymous ftp from site ftp.mankato.msus.edu/pub/astro.

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