The relation between HI Gas and Star Formation Properties in Nearby Galaxies

Abstract

In this paper, we present some correlations of neutral hydrogen HI gas and physical properties of galaxies to investigate the role of atomic gas in governing galaxy evolution. We build a HI-detected sample including 70 galaxies that are detected by ALFALFA in a 15 deg${}^2$ region, and derive their star formation distribution based on the images of $\mathrm{H}\alpha$ narrow-band observed here. In general, HI-detected galaxies have low surface density of stellar mass and active star formation. Additionally, most of the galaxies are in good agreement with the star-forming main sequence, consistent with the previous findings. We confirm the dependence of star formation (SF) in galaxies on HI gas at least on global scale, i.e., star formation rate (SFR) generally increases with HI mass, specific star formation rate (SSFR$\equiv$SFR/M${}_{\ast }$) increases with HI fraction ($f_{HI}$) even for a given stellar mass, and \hi-based star formation efficiency (SFE) mildly increases with the stellar mass and SFR surface density. Based on the distribution of stellar mass and star formation, we calculate the morphology indices of the sample, and analyze the dependence of $f_{HI}$ and SFE on them. The weak correlations between SFE and morphological indexes imply a weak physical link between HI and star formation in small scale. We find that $f_{HI}$ mildly increases with the asymmetry and decreases with the concentration of galaxies, suggesting that the HI gas supply and its effect are likely correlated with external processes in the extended disks of galaxies.

27 pages, accepted for publication in PASP. Comments welcome

References in corpus (16)

• The Role of Pressure in GMC Formation II: The H_2 - Pressure Relation
• Strangulation as the primary mechanism for shutting down star formation in galaxies
• An H-alpha Imaging Survey of Galaxies in the Local 11 Mpc Volume
• Molecular and atomic gas along and across the main sequence of star-forming galaxies
• A Turnover in the Galaxy Main Sequence of Star Formation at $M_{\ast }\sim 10^{10}{M}_{\odot }$ for Redshifts $z<1.3$
• GAMA/H-ATLAS: A meta-analysis of SFR indicators - comprehensive measures of the SFR-M* relation and Cosmic Star Formation History at z < 0.4
• The GALEX Arecibo SDSS survey: III. Evidence for the Inside-Out Formation of Galactic Disks
• The Global Star Formation Laws of Galaxies from a Radio Continuum Perspective
• Galaxy And Mass Assembly (GAMA): growing up in a bad neighbourhood - how do low-mass galaxies become passive?
• The relationship between gas content and star formation rate in spiral galaxies. Comparing the local field with the Virgo cluster
• Extragalactic HI Surveys
• HIghMass -- High HI Mass, HI-rich Galaxies at z~0: Sample Definition, Optical and Halpha Imaging, and Star Formation Properties
• The Local Volume HI Survey: star formation properties
• Star Formation Properties in Barred Galaxies(SFB). III. Statistical Study of Bar-driven Secular Evolution using a sample of nearby barred spirals
• The Outer Stellar Populations and Environments of Unusually HI-rich Galaxies
• SCUSS u-Band Emission as a Star-Formation-Rate Indicator

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• The distribution and properties of DLAs at z $\le$ 2 in the EAGLE simulations
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• The ALMaQUEST Survey XV: The Dependence of the Molecular-to-Atomic Gas Ratios on Resolved Optical Diagnostics
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