Hi global scaling relations in the wise-whisp survey
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
We present the global scaling relations between the neutral atomic hydrogen gas, the stellar disk and the star forming
disk in a sample of 228 nearby galaxies that are both spatially and spectrally resolved in HI line emission. We have
used HI data from the Westerbork survey of HI in Irregular and Spiral galaxies (WHISP) and Mid Infrared (3.4
µm, 11.6 µm) data from the Wide-field Infrared Survey Explorer (WISE) survey, combining two datasets that are
well-suited to such a study in terms of uniformity, resolution and sensitivity. We utilize a novel method of deriving
scaling relations for quantities enclosed within the stellar disk rather than integrating over the HI disk and find the
global scaling relations to be tighter when defined for enclosed quantities. We also present new HI intensity maps for
the WHISP survey derived using a robust noise rejection technique along with corresponding velocity fields.
Description
Keywords
Galaxies, Astronomy, Physics, Dwarf
Citation
Naluminsa, E. et al. (2021). Hi global scaling relations in the wise-whisp survey. Monthly Notices of the Royal Astronomical Society, 502(4), 5711 - 5725. 10.1093/mnras/stab067