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LITTLE THINGS in 3D: robust determination of the circular velocity of dwarf irregular galaxies

Iorio, Giuliano; Fraternali, F; Nipoti, C; Di Teodoro, Enrico Maria; Read, J I; Battaglia, G


Dwarf irregular galaxies (dIrrs) are the smallest stellar systems with extended H i discs. The study of the kinematics of such discs is a powerful tool to estimate the total matter distribution at these very small scales. In this work, we study the H i kinematics of 17 galaxies extracted from the 'Local Irregulars That Trace Luminosity Extremes, The H i Nearby Galaxy Survey' (LITTLE THINGS). Our approach differs significantly from previous studies in that we directly fit 3D models (two spatial...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stw3285
Access Rights: Open Access


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