Mapping Dust Extinction with Infrared Array Cameras: Method and Initial Results

Details Mapping Dust Extinction with Infrared Array Cameras: Method and Initial Results Mapping Dust Extinction with Infrared Array Cameras: Method and Initial Results

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.2603l&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #26.03; Bulletin of the American Astronomical Society, Vol. 25, p.1333

Astronomy and Astrophysics

Astronomy

Scientific paper

In this paper we describe a powerful method for using data obtained in large scale, multi-wavelength, infrared imaging surveys to directly measure and map the distribution of extinction through a molecular cloud. This method combines measurements of near-infrared color excess and certain techniques of star counting to derive mean extinctions through a cloud at higher angular resolution and greater optical depth than those achieved previously by optical star counting. The initial application of the method to a dark cloud near IC 5146 is reported. The results are compared with coordinated (13) CO, C(18) O and CS molecular-line observations also obtained for the cloud.

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