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Cited by 470

The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.

An empirical relation between sodium absorption and dust extinction: Sodium and dust

Open access
Poznanski, Dovi, Prochaska, J. Xavier, Bloom, Joshua S.·2012·Monthly Notices of the Royal Astronomical Society

Abstract

Dust extinction and reddening are ubiquitous in astronomical observations and are often a major source of systematic uncertainty. We present here a study of the correlation between extinction in the Milky Way and the equivalent width of the Na i D absorption doublet. Our sample includes more than 100 high-resolution spectra from the Keck telescopes and nearly a million low-resolution spectra from the Sloan Digital Sky Survey (SDSS). We measure the correlation to unprecedented precision, constrain its shape and derive an empirical relation between these quantities with a dispersion of the order of 0.15 mag in E(B − V). From the shape of the curve of growth we further show that a typical sight line through the Galaxy, as seen within the SDSS footprint, crosses about three dust clouds. We provide a brief guide on how to best estimate extinction to extragalactic sources such as supernovae, using the Na i D absorption feature, under a variety of circumstances.

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Metadata

Authors
Poznanski, D., Prochaska, J. X., & Bloom, J. S.
Venue
Monthly Notices of the Royal Astronomical Society
Published
2012-10-01
Volume
426
Issue
2
Pages
1465-1474
ISSN
0035-8711 (ISSN-L)
OpenAlex
W2953212186
Cited by
470
References
14
FWCI
13.11
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: An empirical relation between sodium absorption and dust extinction: Sodium and dust. https://app.cochat.ai/papers/10.1111/j.1365-2966.2012.21796.x
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Poznanski, D., Prochaska, J. X., & Bloom, J. S. (2012). An empirical relation between sodium absorption and dust extinction: Sodium and dust. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1111/j.1365-2966.2012.21796.x

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