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Ultra-deep Hubble Space Telescope imaging of the Small Magellanic Cloud: The initial mass function of stars with M < 1 M sol

Kalirai, Jason S; Anderson, Jay; Dotter, Aaron; Richer, Harvey B; Fahlman, Gregory G; Hansen, B M S; Hurley, Jarrod; Reid, I Neill; Rich, R M; Shara, Michael M

Description

We present a new measurement of the stellar initial mass function (IMF) based on ultra-deep, high-resolution photometry of >5000 stars in the outskirts of the Small Magellanic Cloud (SMC) galaxy. The Hubble Space Telescope (HST) Advanced Camera for Surveys observations reveal this rich, cospatial population behind the foreground globular cluster 47 Tuc, which we targeted for 121 HST orbits. The stellar main sequence of the SMC is measured in the F606W, F814W color-magnitude diagram down to 30th...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
URI: http://hdl.handle.net/1885/77443
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/763/2/110

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