Estimation of reddening at low galactic latitudes from the Lick galaxy counts

Details Estimation of reddening at low galactic latitudes from the Lick galaxy counts Estimation of reddening at low galactic latitudes from the Lick galaxy counts

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.202.1015s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 202, Mar. 1983, p. 1015-1024.

Astronomy and Astrophysics

Astronomy

7

Astronomical Coordinates, Galaxies, Interstellar Extinction, Latitude, Calibrating, Gamma Ray Astronomy, Globular Clusters

Scientific paper

The relation between galaxy counts and interstellar reddening at low galactic latitudes is discussed. Galaxy counts are found to provide a useful indicator of reddening on large angular scales for galactic latitudes down to |b| = 5°. A procedure for calibrating the relation via an intermediate tracer (atomic hydrogen column denstiy) is described and applied: the final calibration allows reddenings up to E(B-V) ≡ 0.5 to be estimated. The non-linearity of the variation of reddening with the logarithm of the number of galaxies per square degree is supported by recent studies of gamma-ray data.

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