SIMBAD references

2018ApJ...864...40P - Astrophys. J., 864, 40-40 (2018/September-1)

Relationships between HI gas mass, stellar mass, and the star formation rate of HICAT+WISE (H I-WISE) galaxies.


Abstract (from CDS):

We have measured the relationships between H I mass, stellar mass, and star formation rate using the HI Parkes All-Sky Survey Catalog (HICAT) and the Wide-field Infrared Survey Explorer (WISE). Of the 3513 HICAT sources, we find 3.4 µm counterparts for 2896 sources (80%), and provide new WISE-matched aperture photometry for these galaxies. For our principal sample of spiral galaxies with W1 <= 10 mag and z <= 0.01, we identify H I detections for 93% of the sample. We measure lower H I-stellar mass relationships for H I-selected samples that do not include spiral galaxies with little H I gas. Our observations of the spiral sample show that H I mass increases with stellar mass with a power-law index of 0.35; however, this value is dependent on T-type, which affects both the median and the dispersion of HI mass. We also observe an upper limit on the H I gas fraction, which is consistent with a halo spin parameter model. We measure the star formation efficiency of spiral galaxies to be constant at 10–9.57 yr–1 ± 0.4 dex for 2.5 orders of magnitude in stellar mass, despite the higher stellar mass spiral showing evidence of quenched star formation.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: evolution - galaxies: fundamental parameters - galaxies: spiral - galaxies: star formation - radio lines: galaxies - radio lines: ISM

VizieR on-line data: <Available at CDS (J/ApJ/864/40): table8.dat>

Simbad objects: 3161

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