skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The relationship between infrared, optical, and ultraviolet extinction

Abstract

The parameterized extinction data of Fitzpatrick and Massa (1986, 1988) for the ultraviolet and various sources for the optical and near-infrared are used to derive a meaningful average extinction law over the 3.5 micron to 0.125 wavelength range which is applicable to both diffuse and dense regions of the interstellar medium. The law depends on only one parameter R(V) = A(V)/E(B-V). An analytic formula is given for the mean extinction law which can be used to calculate color excesses or to deredden observations. The validity of the law over a large wavelength interval suggests that the processes which modify the sizes and compositions of grains are stochastic in nature and very efficient. 49 refs.

Authors:
; ;  [1]
  1. (Washburn Observatory, Madison, WI (USA))
Publication Date:
OSTI Identifier:
5125744
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal; (USA)
Additional Journal Information:
Journal Volume: 345; Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; INFRARED RADIATION; ABSORPTION; INTERSTELLAR SPACE; ULTRAVIOLET RADIATION; VISIBLE RADIATION; ASTROPHYSICS; INFRARED SPECTRA; INTERSTELLAR GRAINS; ULTRAVIOLET SPECTRA; VISIBLE SPECTRA; ELECTROMAGNETIC RADIATION; PARTICLES; RADIATIONS; SPACE; SPECTRA; 640105* - Astrophysics & Cosmology- Galaxies

Citation Formats

Cardelli, J.A., Clayton, G.C., and Mathis, J.S.. The relationship between infrared, optical, and ultraviolet extinction. United States: N. p., 1989. Web. doi:10.1086/167900.
Cardelli, J.A., Clayton, G.C., & Mathis, J.S.. The relationship between infrared, optical, and ultraviolet extinction. United States. doi:10.1086/167900.
Cardelli, J.A., Clayton, G.C., and Mathis, J.S.. Sun . "The relationship between infrared, optical, and ultraviolet extinction". United States. doi:10.1086/167900.
@article{osti_5125744,
title = {The relationship between infrared, optical, and ultraviolet extinction},
author = {Cardelli, J.A. and Clayton, G.C. and Mathis, J.S.},
abstractNote = {The parameterized extinction data of Fitzpatrick and Massa (1986, 1988) for the ultraviolet and various sources for the optical and near-infrared are used to derive a meaningful average extinction law over the 3.5 micron to 0.125 wavelength range which is applicable to both diffuse and dense regions of the interstellar medium. The law depends on only one parameter R(V) = A(V)/E(B-V). An analytic formula is given for the mean extinction law which can be used to calculate color excesses or to deredden observations. The validity of the law over a large wavelength interval suggests that the processes which modify the sizes and compositions of grains are stochastic in nature and very efficient. 49 refs.},
doi = {10.1086/167900},
journal = {Astrophysical Journal; (USA)},
issn = {0004-637X},
number = ,
volume = 345,
place = {United States},
year = {1989},
month = {10}
}