On the Elevation and Suppression of Star Formation within Galaxies

Abstract

To understand star formation in galaxies, we investigate the star formation rate (SFR) surface density (${\Sigma }_{\mathrm{SFR}}$) profiles for galaxies, based on a well-defined sample of 976 star-forming MaNGA galaxies. We find that the typical ${\Sigma }_{\mathrm{SFR}}$ profiles within 1.5Re of normal SF galaxies can be well described by an exponential function for different stellar mass intervals, while the sSFR profile shows positive gradients, especially for more massive SF galaxies. This is due to the more pronounced central cores or bulges rather than the onset of a `quenching' process. While galaxies that lie significantly above (or below) the star formation main sequence (SFMS) show overall an elevation (or suppression) of ${\Sigma }_{\mathrm{SFR}}$ at all radii, this central elevation (or suppression) is more pronounced in more massive galaxies. The degree of central enhancement and suppression is quite symmetric, suggesting that both the elevation and suppression of star formation are following the same physical processes. Furthermore, we find that the dispersion in ${\Sigma }_{\mathrm{SFR}}$ within and across the population is found to be tightly correlated with the inferred gas depletion time, whether based on the stellar surface mass density or the orbital dynamical time. This suggests that we are seeing the response of a simple gas-regulator system to variations in the accretion rate. This is explored using a heuristic model that can quantitatively explain the dependence of $\sigma ({\Sigma }_{\mathrm{SFR}})$ on gas depletion timescale. Variations in accretion rate are progressively more damped out in regions of low star-formation efficiency leading to a reduced amplitude of variations in star-formation.

arXiv comment24 pages, 16 figures, accepted for publication in ApJ

References in corpus (107)

• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• Star Formation in Galaxies Along the Hubble Sequence
• The physical properties of star forming galaxies in the low redshift universe
• Observational Evidence of AGN Feedback
• Theoretical Modeling of Starburst Galaxies
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• The Host Galaxies and Classification of Active Galactic Nuclei
• 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
• Galaxy Harassment and the Evolution of Clusters of Galaxies
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• UV Star Formation Rates in the Local Universe
• Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe
• Multiwavelength study of massive galaxies at z~2. I. Star formation and galaxy growth
• 3D-HST+CANDELS: The Evolution of the Galaxy Size-Mass Distribution since $z=3$
• Heating Hot Atmospheres with Active Galactic Nuclei
• CALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation
• The size distribution of galaxies in the Sloan Digital Sky Survey
• GOODS-Herschel: an infrared main sequence for star-forming galaxies
• A fundamental relation between mass, SFR and metallicity in local and high redshift galaxies
• The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey
• Galaxy Groups in the SDSS DR4: I. The Catalogue and Basic Properties
• Massive Molecular Outflows and Evidence for AGN Feedback from CO Observations
• Gas-regulation of galaxies: the evolution of the cosmic sSFR, the metallicity-mass-SFR relation and the stellar content of haloes
• Morphological quenching of star formation: making early-type galaxies red
• Properties of Galaxy Groups in the SDSS: I.-- The Dependence of Colour, Star Formation, and Morphology on Halo Mass
• Ram Pressure Stripping of Spiral Galaxies in Clusters
• Abundance Gradients and the Formation of the Milky Way
• Gusty, gaseous flows of FIRE: galactic winds in cosmological simulations with explicit stellar feedback
• Combined CO & Dust Scaling Relations of Depletion Time and Molecular Gas Fractions with Cosmic Time, Specific Star Formation Rate and Stellar Mass
• The Impact of cold gas accretion above a mass floor on galaxy scaling relations
• Compaction and Quenching of High-z Galaxies in Cosmological Simulations: Blue and Red Nuggets
• The Sydney-AAO Multi-object Integral field spectrograph (SAMI)
• Improved background subtraction for the Sloan Digital Sky Survey images
• A Universal, Local Star Formation Law in Galactic Clouds, Nearby Galaxies, High-Redshift Disks, and Starbursts
• The size evolution of galaxies since z~3: combining SDSS, GEMS and FIRES
• An Analytic Model for the Evolution of the Stellar, Gas, and Metal Content of Galaxies
• Wet Disc Contraction to Galactic Blue Nuggets and Quenching to Red Nuggets
• The MaNGA Integral Field Unit Fiber Feed System for the Sloan 2.5 m Telescope
• Can Minor Merging Account for the Size Growth of Quiescent Galaxies? New Results from the CANDELS Survey
• The Importance of Satellite Quenching for the Build-Up of the Red Sequence of Present Day Galaxies
• The Data Reduction Pipeline for the SDSS-IV MaNGA IFU Galaxy Survey
• Mass and Environment as Drivers of Galaxy Evolution II: The quenching of satellite galaxies as the origin of environmental effects
• A fundamental plane for field star-forming galaxies
• The Confinement of Star-Forming Galaxies into a Main Sequence through Episodes of Gas Compaction, Depletion, and Replenishment
• SDSS IV MaNGA - Spatially resolved diagnostic diagrams: A proof that many galaxies are LIERs
• GASP I: Gas stripping phenomena in galaxies with MUSE
• Feedback in simulations of disc-galaxy major mergers
• Four phases of angular-momentum buildup in high-z galaxies: from cosmic-web streams through an extended ring to disc and bulge
• Evidence for Mature Bulges and an Inside-out Quenching Phase 3 Billion Years After the Big Bang
• Feedback, Disk Self-regulation and Galaxy Formation
• A Link Between Star Formation Quenching and Inner Stellar Mass Density in SDSS Central Galaxies
• What turns galaxies off? The different morphologies of star-forming and quiescent galaxies since z~2 from CANDELS
• The role of stellar feedback in the formation of galaxies
• The star formation history of Seyfert 2 nuclei
• Evolution of Density Profiles in High-z Galaxies: Compaction and Quenching Inside-Out
• Breathing FIRE: How Stellar Feedback Drives Radial Migration, Rapid Size Fluctuations, and Population Gradients in Low-Mass Galaxies
• SDSS-IV/MaNGA: Spectrophotometric Calibration Technique
• Reconstructing the Subsurface Three-Dimensional Magnetic Structure of A Solar Active Region Using SDO/HMI Observations
• The evolving relations between size, mass, surface density, and star formation in 3x10^4 galaxies since z=2
• A universal structural and star-forming relation since $z\sim 3$: connecting compact star-forming and quiescent galaxies
• Where stars form: inside-out growth and coherent star formation from HST Halpha maps of 2676 galaxies across the main sequence at z~1
• HST and Spitzer imaging of red and blue galaxies at z~2.5: A correlation between size and star formation activity from compact quiescent galaxies to extended star forming galaxies
• SDSS-IV MaNGA: The Impact of Diffuse Ionized Gas on Emission-line Ratios, Interpretation of Diagnostic Diagrams, and Gas Metallicity Measurements
• The cluster-scale AGN outburst in Hydra A
• Spatially-Resolved Star Formation Main Sequence of Galaxies in the CALIFA Survey
• SDSS-IV MaNGA: Spatially resolved star formation histories in galaxies as a function of galaxy mass and type
• Star formation along the Hubble sequence: Radial structure of the star formation of CALIFA galaxies
• SDSS IV MaNGA - sSFR profiles and the slow quenching of discs in green valley galaxies
• Star formation is boosted (and quenched) from the inside out: radial star formation profiles from MaNGA
• Extended Schmidt Law: Role Of Existing Stars In Current Star Formation
• Surface density effects in quenching: cause or effect?
• Revealing velocity dispersion as the best indicator of a galaxy's color, compared to stellar mass, surface mass density or morphology
• Volumetric star formation laws of disc galaxies
• SDSS IV MaNGA: The global and local stellar mass assemby histories of galaxies
• Evidence for a Major Merger Origin of High Redshift Sub-millimeter Galaxies
• Galaxy Zoo: Evidence for Diverse Star Formation Histories through the Green Valley
• The origin of scatter in the star formation rate - stellar mass relation
• The SAMI Galaxy Survey: Spatially Resolving the Main Sequence of Star Formation
• The connection between galaxy structure and quenching efficiency
• Is Main Sequence Galaxy Star Formation Controlled by Halo Mass Accretion?
• Quenching of Star Formation in SDSS Groups: Centrals, Satellites, and Galactic Conformity
• The massive black hole-velocity dispersion relation and the halo baryon fraction: a case for positive AGN feedback
• Quantifying the role of bars in the build-up of central mass concentrations in disk galaxies
• P-MaNGA: Gradients in Recent Star Formation Histories as Diagnostics for Galaxy Growth and Death
• The EDGE-CALIFA survey: Variations in the Molecular Gas Depletion Time in Local Galaxies
• ELUCID IV: Galaxy Quenching and its Relation to Halo Mass, Environment, and Assembly Bias
• Re-visiting the extended Schmidt law: the important role of existing stars in regulating star formation
• Galaxy Zoo: the dependence of the star formation-stellar mass relation on spiral disk morphology
• Linking bar- and interaction-driven molecular gas concentration with centrally-enhanced star formation in EDGE-CALIFA galaxies
• SDSS-IV MaNGA: The Spatial Distribution of Star Formation and its Dependence on Mass, Structure and Environment
• The surface abundances of Red Supergiants at core-collapse
• Understanding the Scatter in the Spatially-resolved Star Formation Main Sequence of Local Massive Spiral Galaxies
• Bar-induced central star formation as revealed by integral field spectroscopy from CALIFA
• Star formation of far-IR AGN and non-AGN galaxies in the green valley: possible implication of AGN positive feedback
• SDSS-IV MaNGA: Star formation cessation in low-redshift galaxies I. Dependence on stellar mass and structural properties
• Empirical modeling of the stellar spectrum of galaxies
• The Star-Formation Main Sequence: The Dependence of Specific Star Formation Rate and Its Dispersion on Galaxy Stellar Mass
• SDSS-IV MaNGA: Spatially resolved star-formation histories and the connection to galaxy physical properties
• The Dearth of Difference between Central and Satellite Galaxies I. Perspectives on star formation quenching and AGN activities
• Connecting Compact Star-forming and Extended Star-forming Galaxies at Low-redshift: Implications for Galaxy Compaction and Quenching
• SDSS-IV MaNGA: The Roles of AGNs and Dynamical Processes in Star Formation Quenching in Nearby Disk Galaxies
• Elevation or Suppression? The Resolved Star Formation Main Sequence of Galaxies with Two Different Assembly Modes
• Observational evidence that positive and negative AGN feedback depends on galaxy mass and jet power
• Shocks or Photoionization: Direct Temperature Measurements of the Low-Ionization Gas in Quiescent Galaxies
• The Properties of Massive Star-forming galaxies with Outside-in Assembly Mode

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• The ALMaQUEST Survey X: What powers merger induced star formation?
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• Inverse stellar population age gradients of post-starburst galaxies at z=0.8 with LEGA-C
• The Origin of Exponential Star-forming Disks
• The ALMaQUEST Survey: VI. The molecular gas main sequence of `retired' regions in galaxies
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• ALMaQUEST -- VII: Star Formation Scaling Relations of Green Valley Galaxies
• An IFU View of the Active Galactic Nuclei in MaNGA Galaxy Pairs
• The Variability of Star Formation Rate in Galaxies: II. Power Spectrum Distribution on the Main Sequence
• The Dearth of Difference between Central and Satellite Galaxies III. Environmental Dependence of Mass-Size and Mass-Structure Relations
• Revisiting the fundamental metallicity relation with observation and simulation
• Investigating the delay between dust radiation and star-formation in local and distant quenching galaxies
• Spatially resolved signature of quenching in star-forming galaxies
• The Similar Signatures of Coplanar Gas Inflow and Disk Warps in Galactic Gas Kinematic Maps
• Constraints on galactic outflows from the metallicity-stellar mass-SFR relation of EAGLE simulation and SDSS galaxies
• The EDGE-CALIFA survey: The effect of active galactic nucleus feedback on the integrated properties of galaxies at different stages of their evolution
• Searching for Spectroscopic Signatures of Ongoing Quenching in SDSS Galaxies
• Implications of a spatially resolved main sequence for the size evolution of star forming galaxies
• Dissecting the mass quenching in TNG50: Galaxy size determines the quenching mode
• Two-phase formation of galaxies: the coevolution between galaxies and dark matter halos
• Star-forming S0 Galaxies in SDSS-MaNGA: fading spirals or rejuvenated S0s?