Dissecting Nearby Galaxies with piXedfit: II. Spatially Resolved Scaling Relations Among Stars, Dust, and Gas

Abstract

We study spatially resolved scaling relations among stars, dust, and gas in ten nearby spiral galaxies. In a preceding paper Abdurro'uf et al. (2022), we have derived spatially resolved properties of the stellar population and dust by panchromatic spectral energy distribution (SED) fitting using piXedfit. Now, we investigate resolved star formation (${\Sigma }_{{\mathrm{H}}_2}$--${\Sigma }_{\mathrm{SFR}}$--${\Sigma }_{\ast }$) and dust scaling relations. While the relations with all sub-galactic regions of the galaxies are reasonably tight ($\sigma \lesssim 0.3$ dex), we find that most of the scaling relations exhibit galaxy-to-galaxy variations in normalization and shape. Only two relations of ${\Sigma }_{\mathrm{dust}}$--${\Sigma }_{\mathrm{gas}}$ and ${\Sigma }_{\mathrm{dust}}$--${\Sigma }_{{\mathrm{H}}_2}$ do not show noticeable galaxy-to-galaxy variations among our sample galaxies. We further investigate correlations among the scaling relations. We find significant correlations among the normalization of the ${\Sigma }_{{\mathrm{H}}_2}$--${\Sigma }_{\mathrm{SFR}}$--${\Sigma }_{\ast }$ relations, which suggest that galaxies with higher levels of resolved ${\text{H}}_2$ fraction ($f_{{\mathrm{H}}_2}$) tend to have higher levels of resolved star formation efficiency (SFE) and specific star formation rate (sSFR). We also observe that galaxies with higher levels of resolved dust-to-stellar mass ratios tend to have higher levels of resolved sSFR, SFE, and $f_{{\mathrm{H}}_2}$. Moreover, we find that galaxies with higher global sSFR and less compact morphology tend to have higher levels of the resolved sSFR, SFE, and $f_{{\mathrm{H}}_2}$, which can explain the variations in the normalization of the ${\Sigma }_{{\mathrm{H}}_2}$--${\Sigma }_{\mathrm{SFR}}$--${\Sigma }_{\ast }$ relationships. Overall, we observe indications of the contributions of both global and local factors in governing the star formation process in galaxies.

28 pages, 13 figures, accepted for publication in ApJ. piXedfit v1.0 is publicly available at https://github.com/aabdurrouf/piXedfit. Documentation is available at https://pixedfit.readthedocs.io/en/latest/. Some tutorials of practical usages in jupyter notebooks can be found at https://github.com/aabdurrouf/piXedfit/tree/main/examples

References in corpus (40)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• UV Star Formation Rates in the Local Universe
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations
• AGN Dusty Tori: I. Handling of Clumpy Media
• Compaction and Quenching of High-z Galaxies in Cosmological Simulations: Blue and Red Nuggets
• PRIMUS: Constraints on Star Formation Quenching and Galaxy Merging, and the Evolution of the Stellar Mass Function From z=0-1
• COLD GASS, an IRAM legacy survey of molecular gas in massive galaxies: I. Relations between H2, HI, stellar content and structural properties
• An ALMA survey of Sub-millimeter Galaxies in the Extended Chandra Deep Field South: Physical properties derived from ultraviolet-to-radio modelling
• An H-alpha Imaging Survey of Galaxies in the Local 11 Mpc Volume
• Evolution of asymptotic giant branch stars I. Updated synthetic TP-AGB models and their basic calibration
• The Current Status of Galaxy Formation
• The PHANGS-MUSE survey -- Probing the chemo-dynamical evolution of disc galaxies
• The impact of interactions, bars, bulges, and AGN on star formation efficiency in local massive galaxies
• The star formation main sequence and stellar mass assembly of galaxies in the Illustris simulation
• HI-to-H2 Transitions and H I Column Densities in Galaxy Star-Forming Regions
• The Abundance Properties of Nearby Late-Type Galaxies.I. The Data
• CHAOS I: Direct Chemical Abundances for HII Regions in NGC 628
• Revisiting the Integrated Star Formation Law. Paper I: Non-Starbursting Galaxies
• Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. II. Gas-to-Dust Ratio Variations across ISM Phases
• The SAMI Galaxy Survey: Spatially Resolving the Main Sequence of Star Formation
• The ALMaQUEST Survey: The molecular gas main sequence and the origin of the star forming main sequence
• SDSS-IV MaNGA: Effects of Morphology in the global and local Star Formation Main Sequences
• SDSS-IV MANGA: Spatially Resolved Star Formation Main Sequence and LI(N)ER Sequence
• The ALMaQUEST Survey: V. The non-universality of kpc-scale star formation relations and the factors that drive them
• Dust scaling relations in a cosmological simulation
• The ISM scaling relations in DustPedia late-type galaxies: A benchmark study for the Local Universe
• The Variation in Molecular Gas Depletion Time among Nearby Galaxies: What are the Main Parameter Dependencies?
• The ALMaQUEST Survey IX: The nature of the resolved star forming main sequence
• The resolved star-formation relation in nearby active galactic nuclei
• Resolved galaxy scaling relations in the EAGLE simulation: star formation, metallicity and stellar mass on kpc scales
• Time Evolution of Galaxy Scaling Relations in Cosmological Simulations
• A panchromatic spatially-resolved analysis of nearby galaxies -- I. Sub-kpc scale Main Sequence in grand-design spirals
• Dissecting Nearby Galaxies with piXedfit: I. Spatially Resolved Properties of Stars, Dust, and Gas as Revealed by Panchromatic SED Fitting
• Exploring the relation between dust mass and galaxy properties using Dusty SAGE

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