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BEING WISE II: REDUCING the INFLUENCE of STAR FORMATION HISTORY on the MASS-TO-LIGHT RATIO of QUIESCENT GALAXIES

Groves, Brent Allan; Norris, Mark A.; Schinnerer, E.; Meidt, Sharon E.; van de Ven, Glenn; Schaye, J; Crain, Robert A; Bower, Richard; Furlong, Michelle; Schaller, Matthieu; Theuns, Tom

Description

Stellar population synthesis models can now reproduce the photometry of old stellar systems (age > 2 Gyr) in the near-infrared (NIR) bands at 3.4 and 4.6 μm (WISE W1 and W2 or IRAC 1 and 2). In this paper, we derive stellarmass-to-light ratios for these and optical bands, and confirm that the NIR M/L shows dramatically reduced sensitivity to both age and metallicity compared to optical bands, and further, that this behavior leads to significantly more robust stellar masses for quiescent...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
URI: http://hdl.handle.net/1885/152164
Source: The Astrophysical Journal
DOI: 10.3847/0004-637X/832/2/198
Access Rights: Open Access

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