H I global scaling relations in the WISE-WHISP survey
Abstract
We present the global scaling relations between the neutral atomic hydrogen gas, the stellar disc, and the star-forming disc in a sample of 228 nearby galaxies that are both spatially and spectrally resolved in H I line emission. We have used H I data from the Westerbork survey of H I 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 data sets 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 disc rather than integrating over the H I disc and find the global scaling relations to be tighter when defined for enclosed quantities. We also present new H I intensity maps for the WHISP survey derived using a robust noise rejection technique along with corresponding velocity fields.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 2021
- DOI:
- arXiv:
- arXiv:2101.04514
- Bibcode:
- 2021MNRAS.502.5711N
- Keywords:
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- galaxies: dwarf;
- galaxies: evolution;
- galaxies: ISM;
- galaxies: spiral;
- galaxies: star formation;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 18 pages, 5 tables, 16 Figures. Accepted for publication in the Monthly Notices of the Royal Astronomical Society. Minor revision