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Dust-Gas Scaling Relations and OH Abundance in the Galactic ISM

Nguyen, Hiep; Dawson, J.R.; Miville-Deschênes, M.-A.; Tang, Ningyu; Li, Di; Heiles, Carl; Murray, Claire E.; Stanimirović, Snežana; Gibson, Steven; McClure-Griffiths, Naomi; Troland, Thomas

Description

Observations of interstellar dust are often used as a proxy for total gas column density N H. By comparing Planck thermal dust data (Release 1.2) and new dust reddening maps from Pan-STARRS 1 and 2MASS, with accurate (opacity-corrected) H i column densities and newly published OH data from the Arecibo Millennium survey and 21-SPONGE, we confirm linear correlations between dust optical depth τ 353, reddening E(B − V), and the total proton column density N H in the range (1–30) × 1020 cm−2, along...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
URI: http://hdl.handle.net/1885/186443
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aac82b
Access Rights: Open Access

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