Dissecting Nearby Galaxies with piXedfit: I. Spatially Resolved Properties of Stars, Dust, and Gas as Revealed by Panchromatic SED Fitting
arXiv:2110.03158 · doi:10.3847/1538-4357/ac439a
Abstract
We study spatially resolved properties (on spatial scales of kpc out to at least effective radii) of the stars, dust, and gas in ten nearby spiral galaxies. The properties of the stellar population and dust are derived by fitting the spatially resolved spectral energy distribution (SED) with more than 20 photometric bands ranging from far-ultraviolet to far-infrared. Our newly developed software piXedfit performs point spread function matching of images, pixel binning, and models the stellar light, dust attenuation, dust emission, and emission from a dusty torus heated by an active galactic nucleus simultaneously through the energy balance approach. With this self-consistent analysis, we present the spatially resolved version of the IRX-- relation, finding that it is consistent with the relationship from the integrated photometry. We show that the old stellar populations contribute to the dust heating, which causes an overestimation of star formation rate (SFR) derived from the total ultraviolet and infrared luminosities on kpc scales. With archival high-resolution maps of atomic and molecular gas, we study the radial variation of the properties of the stellar populations (including stellar mass, age, metallicity, and SFR), dust (including dust mass, dust temperature, and abundance of polycyclic aromatic hydrocarbon), gas, as well as dust-to-stellar mass and dust-to-gas mass ratios. We observe a depletion of molecular gas mass fraction in the central region of the majority of the galaxies, suggesting that the lack of available fuel is an important factor in suppressing the specific SFR at the center.
35 pages, 19 figures, 4 tables. Accepted by ApJ (results remain the same). Complementary figures to Fig. 4 (for 10 galaxies) and high resolution version of Fig. 8 are available at https://github.com/aabdurrouf/maps-nearby-galaxies
References in corpus (37)
- Array Programming with NumPy
- Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
- 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
- A simple model to interpret the ultraviolet, optical and infrared emission from galaxies
- Dust Masses, PAH Abundances, and Starlight Intensities in the SINGS Galaxy Sample
- AGN Dusty Tori: I. Handling of Clumpy Media
- 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
- An Objective Definition for the Main Sequence of Star-Forming Galaxies
- Evolution of interstellar dust and stardust in the solar neighbourhood
- Evidence for Mature Bulges and an Inside-out Quenching Phase 3 Billion Years After the Big Bang
- emcee v3: A Python ensemble sampling toolkit for affine-invariant MCMC
- Stellar Population gradients in galaxy discs from the CALIFA survey
- Radial variation of attenuation and star formation in the largest late-type disks observed with GALEX
- The Abundance Properties of Nearby Late-Type Galaxies.I. The Data
- Star formation is boosted (and quenched) from the inside out: radial star formation profiles from MaNGA
- Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. I. Dust Properties and Insights into the Origin of the Submm Excess Emission
- DustPedia - A Definitive Study of Cosmic Dust in the Local Universe
- Radial distribution of dust, stars, gas, and star-formation rate in DustPedia face-on galaxies
- Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. II. Gas-to-Dust Ratio Variations across ISM Phases
- Destruction of Interstellar Dust in Evolving Supernova Remnant Shock Waves
- SDSS IV MaNGA: The global and local stellar mass assemby histories of galaxies
- SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies
- Bar-driven evolution and quenching of spiral galaxies in cosmological simulations
- High-resolution, 3D radiative transfer modeling : I. The grand-design spiral galaxy M51
- The Herschel Exploitation of Local Galaxy Andromeda (HELGA) VII: A SKIRT radiative transfer model and insights on dust heating
- Introducing piXedfit -- a Spectral Energy Distribution Fitting Code Designed for Resolved Sources
- The Resolved Distributions of Dust Mass and Temperature in Local Group Galaxies
- From Diversity to Dichotomy, and Quenching: Milky-Way-Like and Massive-Galaxy Progenitors at 0.5<z<3.0
- Spatial distribution of stellar mass and star formation activity at 0.2<z<1.2 across and along the Main Sequence
- High-Resolution Radiative Transfer Modelling of M33
- A panchromatic spatially-resolved analysis of nearby galaxies -- I. Sub-kpc scale Main Sequence in grand-design spirals
- On the Spatially Resolved Star Formation History in M51 I: Hybrid UV+IR Star Formation Laws and IR Emission from Dust Heated by Old Stars
- High-resolution, 3D radiative transfer modelling III. The DustPedia barred galaxies
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- Spatially Resolved Stellar Populations of Galaxies in WHL0137-08 and MACS0647+70 Clusters as Revealed by JWST: How do Galaxies Grow and Quench Over Cosmic Time?
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- Euclid: Early Release Observations -- Deep anatomy of nearby galaxies
- A Multiwavelength view of IC 860: What Is in Action inside Quenching Galaxies
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- Dissecting Nearby Galaxies with piXedfit: II. Spatially Resolved Scaling Relations Among Stars, Dust, and Gas
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- Euclid preparation. Spatially resolved stellar populations of local galaxies with Euclid: a proof of concept using synthetic images with the TNG50 simulation
- The ISM scaling relations using inner HI and an application of estimating dust mass
- SE3D: Building a radiative transfer emulator to fit panchromatic resolved galaxy observations with 3D models of dust and stars
- Resolved molecular gas and star-formation in massive unquenched spirals : I. UGC 8179