The sub-galactic and nuclear main sequences for local star-forming galaxies

Abstract

We describe a sub-galactic main sequence (SGMS) relating star formation rate surface density (${\Sigma }_{\text{SFR}}$) and stellar mass density (${\Sigma }_{\star }$) for distinct regions within star forming galaxies, including their nuclei. We use a sample of 246 nearby star-forming galaxies from the "Star Formation Reference Survey" and demonstrate that the SGMS holds down to $\sim$1 kpc scales with a slope of $\alpha =0.91$ and a dispersion of 0.31 dex, similar to the well-known main sequence (MS) measured for globally integrated star formation rates (SFRs) and stellar masses. The SGMS slope depends on galaxy morphology, with late-type galaxies (Sc$-$Irr) having $\alpha =0.97$ and early-type spirals (Sa$-$Sbc) having $\alpha =0.81$. The SGMS constructed from sub-regions of individual galaxies has on average the same characteristics as the composite SGMS from all galaxies. The SGMS for galaxy nuclei shows a dispersion similar to that seen for other sub-regions. Sampling a limited range of SFR$-$M${}_{\star }$ space may produce either sub-linearity or super-linearity of the SGMS slope. For nearly all galaxies, both SFR and stellar mass peak in the nucleus, indicating that circumnuclear clusters are among the most actively star-forming regions in the galaxy and the most massive. The nuclear SFR also correlates with total galaxy mass, forming a distinct sequence from the standard MS of star-formation. The nuclear main sequence will be useful for studying bulge growth and for characterizing feedback processes connecting AGN and star formation.

arXiv commentAccepted for publication in MNRAS. 13 pages, 13 figures, 1 table

References in corpus (42)

• The Host Galaxies of AGN
• Star Formation in the Milky Way and Nearby Galaxies
• Theoretical Modeling of Starburst Galaxies
• The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
• The Optical and Near-Infrared Properties of Galaxies: I. Luminosity and Stellar Mass Functions
• 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 reversal of the star formation-density relation in the distant universe
• Multiwavelength study of massive galaxies at z~2. I. Star formation and galaxy growth
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• CALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation
• GOODS-Herschel: an infrared main sequence for star-forming galaxies
• Analysis of galaxy SEDs from far-UV to far-IR with CIGALE: Studying a SINGS test sample
• Modeling the Panchromatic Spectral Energy Distributions of Galaxies
• PHIBSS: molecular gas content and scaling relations in z~1-3 normal star forming galaxies
• Mid-Infrared Selection of Active Galaxies
• The Star-formation Mass Sequence out to z=2.5
• The Infrared Spectral Energy Distribution of Normal Star-Forming Galaxies: Calibration at Far-Infrared and Submillimeter Wavelengths
• Constraining the Low-Mass Slope of the Star Formation Sequence at 0.5<z<2.5
• The lesser role of starbursts for star formation at z=2
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• Galaxy Structure and Mode of Star Formation in the SFR-Mass Plane from z ~ 2.5 to z ~ 0.1
• The star formation history of mass-selected galaxies in the COSMOS field
• The Evolving Interstellar Medium of Star Forming Galaxies Since z=2 as Probed by Their Infrared Spectral Energy Distributions
• Star Formation and Dust Attenuation Properties in Galaxies from a Statistical UV-to-FIR Analysis
• The PSCz Catalogue
• Star Formation Thresholds in Galactic Disks
• A Search for Extended Ultraviolet Disk (XUV-disk) Galaxies in the Local Universe
• The Anatomy of Star Formation in NGC 300
• Recent Star Formation in the Extreme Outer Disk of M83
• A CANDELS - 3D-HST Synergy: Resolved Star Formation Patterns at 0.7 < z < 1.5
• A Turnover in the Galaxy Main Sequence of Star Formation at $M_{\ast }\sim 10^{10}{M}_{\odot }$ for Redshifts $z<1.3$
• The hidden "AGN main sequence": Evidence for a universal black hole accretion to star formation rate ratio since z~2 producing a M_BH-M* relation
• The propagation of uncertainties in stellar population synthesis modeling II: The challenge of comparing galaxy evolution models to observations
• Spatially-Resolved Star Formation Main Sequence of Galaxies in the CALIFA Survey
• Star formation along the Hubble sequence: Radial structure of the star formation of CALIFA galaxies
• Discovery of an extended ultraviolet disk in the nearby galaxy NGC4625
• 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
• Kpc-scale Properties of Emission-line Galaxies
• Stellar Mass Estimation Based on IRAC Photometry for Spitzer SWIRE-field Galaxies
• KROSS: Mapping the Ha emission across the star-formation sequence at z~1
• The Star Formation Reference Survey. I. Survey Description and Basic Data
• Star formation and dust obscuration in the tidally distorted galaxy NGC 2442

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• The Star Formation Reference Survey. IV. Stellar mass distribution of local star-forming galaxies
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