The starburst-AGN connection: the role of young stellar populations in fueling supermassive black holes

Abstract

Tracing the star formation history in circumnuclear regions (CNRs) is a key step towards understanding the starburst-AGN connection. However, bright nuclei outshining the entire host galaxy prevent the analysis of the stellar populations of CNRs around type-I AGNs. Obscuration of the nuclei by the central torus provides an unique opportunity to study the stellar populations of AGN host galaxies. We assemble a sample of 10, 848 type-II AGNs with a redshift range of $0.03\le z\le 0.08$ from the Sloan Digital Sky Survey's Data Release 4, and measure the mean specific star formation rates (SSFRs) over the past 100Myr in the central $\sim 1-2$ kpc . We find a tight correlation between the Eddington ratio ($\lambda$) of the central black hole (BH) and the mean SSFR, strongly implying that supernova explosions (SNexp) play a role in the transportation of gas to galactic centers. We outline a model for this connection by accounting for the role of SNexp in the dynamics of CNRs. In our model, the viscosity of turbulence excited by SNexp is enhanced, and thus angular momentum can be efficiently transported, driving inflows towards galactic centers. Our model explains the observed relation $\lambda \propto \mathrm{SSF}{\mathrm{R}}^{1.5-2.0}$, suggesting that AGN are triggered by SNexp in CNRs.

arXiv comment4 pages, 2 color figures. ApJ Letters (in press)

References in corpus (33)

• Stellar population synthesis at the resolution of 2003
• Star Formation in Galaxies Along the Hubble Sequence
• The Demography of Massive Dark Objects in Galaxy Centres
• The Host Galaxies of AGN
• The slope of the black-hole mass versus velocity dispersion correlation
• Stellar Masses and Star Formation Histories for 10^5 Galaxies from the Sloan Digital Sky Survey
• The size distribution of galaxies in the Sloan Digital Sky Survey
• The Fourth Data Release of the Sloan Digital Sky Survey
• Present-Day Growth of Black Holes and Bulges: the SDSS Perspective
• Radiation Pressure Supported Starburst Disks and AGN Fueling
• A Close Look at Star Formation around Active Galactic Nuclei
• The star formation history of Seyfert 2 nuclei
• Bursty stellar populations and obscured AGN in galaxy bulges
• Obscuring Material around Seyfert Nuclei with Starbursts
• Empirical diagnostics of the starburst-AGN connection
• Interactions, star formation and AGN activity
• Coevolution of Supermassive Black Holes and Circumnuclear Disks
• Ongoing Formation of Bulges and Black Holes in the Local Universe: New Insights from GALEX
• The Global Structure and Evolution of a Self-Gravitating Multi-phase Interstellar Medium in a Galactic Disk
• 3--4 $\mu$m Spectroscopy of Seyfert 2 Nuclei to Quantitatively Assess the Energetic Importance of Compact Nuclear Starbursts
• The Physical Connections Among IR QSOs, PG QSOs and Narrow-Line Seyfert 1 Galaxies
• Stellar Population in LLAGN.II: STIS observations
• Mid-infrared observations of NGC 1068 with ISOCAM
• Star formation in accretion discs : from the Galactic Center to Active Galactic Nuclei
• Cosmological Evolution of the Duty Cycle of Quasars
• Constraints on the star formation histories of galaxies from z~1 to z~0
• The Lopsidedness of Present-Day Galaxies: Results from the Sloan Digital Sky Survey
• Compact Nuclear Starbursts in Seyfert 2 Galaxies from the CfA and 12 Micron Samples
• Nuclear/Circumnuclear Starbursts and Active Galactic Nuclei Mass Accretion in Seyfert Galaxies
• Turbulent viscosity in clumpy accretion disks II supernova driven turbulence in the Galaxy
• Stellar population gradients in Seyfert 2 galaxies. Northern sample
• Nuclear obscuration and scattering in Seyfert 2 galaxies
• Suppressed star formation in circumnuclear regions in Seyfert galaxies

Cited by in corpus (35)

• Galaxy pairs in the Sloan Digital Sky Survey - VIII: The observational properties of post-merger galaxies
• Radiation-driven Fountain and Origin of Torus around Active Galactic Nuclei
• Molecular Gas Disk Structures around AGNs
• Enhanced Star Formation in Narrow Line Seyfert 1 AGN revealed by Spitzer
• Multi-phase Nature of a Radiation-Driven Fountain with Nuclear Starburst in a Low-mass Active Galactic Nucleus
• Accretion onto black holes formed by direct collapse
• Feeding SMBHs through supersonic turbulence and ballistic accretion
• The unusual NIV]-emitter galaxy GDS J033218.92-275302.7: star formation or AGN-driven winds from a massive galaxy at z=5.56
• A Tale of Two Populations: The Contribution of Merger and Secular Processes to the Evolution of Active Galactic Nuclei
• Star formation in self-gravitating disks in active galactic nuclei. I. Metallicity gradients in broad line regions
• A tale of two feedbacks: star-formation in the host galaxies of radio-AGN
• Cosmic Evolution of Star Formation In SDSS Quasar Hosts Since z=1
• Absorbed relativistic jets in radio-quiet narrow-line Seyfert 1 galaxies
• Accretion Disks in Active Galactic Nuclei: Gas Supply Driven by Star Formation
• Formation of High-redshift (z>6) Quasars Driven by Nuclear Starbursts
• The host galaxy of a narrow-line Seyfert 1 galaxy RE J1034+396 with X-ray quasi-periodic oscillations
• Ultraviolet Spectroscopy of Circumnuclear Star Clusters in M83
• AGN in post-mergers from the Ultraviolet Near Infrared Optical Northern Survey
• Supernova Explosions in Accretion Disks in Active Galactic Nuclei: Three-Dimensional Models
• Retrograde versus prograde models of accreting black holes
• Supermassive black hole fueling in IllustrisTNG: Impact of environment
• Evolution of gaseous disk viscosity driven by supernova explosion in star-forming galaxies at high redshift
• Uncovering the nucleus candidate for NGC 253
• Supernovae-induced accretion and star formation in the inner kiloparsec of a gaseous disk
• Star formation efficiency and AGN feedback in narrow-line Seyfert 1 galaxies with fast X-ray nuclear winds
• Modeling Turbulence in Galactic Centers
• Insights Into AGN and Host Galaxy Co-evolution From Hard X-ray Emission
• Understanding AGN-host connection in partially obscured active galactic nuclei. Part III: Properties of ROSAT-selected SDSS AGNs
• On the Hydrodynamic Interplay Between a Young Nuclear Starburst and a Central Super Massive Black Hole
• The Young, the Old, and the Dusty: Stellar Populations of AGN Hosts
• Evolution of gaseous disk viscosity driven by supernova explosion. II. Structure and emissions from star-forming galaxies at high redshift
• The galactic spin of AGN galaxies
• Tracing the History of Recent Bulge Star Formation in Active Galactic Nuclei
• The inner $\sim$ 40 pc Radial Distribution of the Star formation Rate for a nearby Seyfert 2 galaxy M51
• Intra-night optical variability study of a non-jetted narrow-line Seyfert 1 galaxy: SDSS J163401.94+480940.1