dereddenv.
Astronomy.
transitive. To correct the observed spectrum of (a star, etc.) for the reddening of its light by interstellar material, so as to arrive at its intrinsic spectrum. Also with the observed spectrum as object.
ΘΚΠ
the world > the universe > cosmology > science of observation > observe [verb (transitive)] > correct > deredden
deredden1971
1971 Astron. & Astrophysics X. 270 The 41 stars..were individually dereddened by the ‘Q-method’ of Johnson.
1976 Astron. & Astrophysics L. 446/2 We can estimate the amount of extinction..by dereddening the observed spectrum until a smooth flux distribution..is obtained.
1978 Nature 5 Oct. 412/2 All the observed data are de-reddened using E(B − V) = 0.06..and the extinction law of Code et al. in the UV.
1985 Astron. & Astrophysics CXLIII. 455/1 H 1286 can be dereddened to a position on the ZAMS.
Derivatives
deˈreddened adj.
ΘΚΠ
the world > the universe > cosmology > science of observation > [adjective] > dereddening
dereddened1971
1971 Astron. & Astrophysics X. 275/2 Individual dereddened values of B-V were determined.
1979 Nature 19 Apr. 719/1 To obtain the observed (dereddened) anomalous line luminosity, we find that the particle density in the emitting region is ∼1012cm−3.
deˈreddening n.
ΘΚΠ
the world > the universe > cosmology > science of observation > [noun] > correction > dereddening
dereddening1985
1985 Astron. & Astrophysics CXLIII. 457/1 Dereddening moves H 1286 to the ZAMS.
This entry has not yet been fully updated (first published 1989; most recently modified version published online December 2020).
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