Fast outflows and star formation quenching in quasar host galaxies

Negative feedback from active galactic nuclei (AGN) is considered a key mechanism in shaping galaxy evolution. Fast, extended outflows are frequently detected in the AGN host galaxies at all redshifts and luminosities, both in ionised and molecular gas. However, these outflows are only "potentially" able to quench star formation and we are still missing a decisive evidence of negative feedback in action. Here we present Spectrograph for INtegral Field Observations in the Near Infrared (SINFONI) H- and K-band integral-field spectroscopic observations of two quasars at $z\sim$2.4 characterised by fast, extended outflows detected through the [OIII]$\lambda$5007 line (Carniani et al. 2015). The high signal-to-noise ratio of our observations allows us to identify faint narrow (FWHM $< 500$ km/s), and spatially extended components in [OIII]$\lambda$5007 and H$\alpha$ emission associated with star formation in the host galaxy. Such star-formation powered emission is spatially anti-correlated with the fast outflows. The ionised outflows therefore appear to be able to suppress star formation in the region where the outflow is expanding. However the detection of narrow, spatially-extended H$\alpha$ emission indicates star formation rates of at least $\sim 50-90$ M$_{\odot}$/yr, suggesting either that AGN feedback does not affect the whole galaxy or that many feedback episodes are required before star formation is completely quenched. On the other hand, the narrow H$\alpha$ emission extending along the edges of the outflow cone may lead also to a positive feedback interpretation. Our results highlight the possible twofold role of galaxy-wide outflows in host galaxy evolution.

[1]  O. Shemmer,et al.  STAR FORMATION BLACK HOLE GROWTH AND DUSTY TORI IN THE MOST LUMINOUS AGNS AT Z = 2–3.5 , 2015, 1511.07876.

[2]  A. M. Swinbank,et al.  The KMOS AGN Survey at High redshift (KASHz) : the prevalence and drivers of ionized outflows in the host galaxies of X-ray AGN , 2015, 1511.00008.

[3]  G. Cresci,et al.  SINFONI spectra of heavily obscured AGNs in COSMOS: evidence of outflows in a MIR/O target at z$$\backslash$sim2.5$ , 2015, 1508.07884.

[4]  M. Volonteri,et al.  RELATIONS BETWEEN CENTRAL BLACK HOLE MASS AND TOTAL GALAXY STELLAR MASS IN THE LOCAL UNIVERSE , 2015, 1508.06274.

[5]  F. Mannucci,et al.  The MAGNUM survey: Positive feedback in the nuclear region of NGC 5643 suggested by MUSE , 2015, 1508.04464.

[6]  F. Mannucci,et al.  Is there any evidence that ionized outflows quench star formation in type 1 quasars at z < 1? , 2015, 1506.05984.

[7]  F. Mannucci,et al.  Ionised outflows in z $\sim$ 2.4 quasar host galaxies , 2015, 1506.03096.

[8]  Andrew King,et al.  Powerful Outflows and Feedback from Active Galactic Nuclei , 2015, 1503.05206.

[9]  S. Veilleux,et al.  The multi-phase winds of Markarian 231: from the hot, nuclear, ultra-fast wind to the galaxy-scale, molecular outflow , 2015, 1503.01481.

[10]  F. Mannucci,et al.  BLOWIN’ IN THE WIND: BOTH “NEGATIVE” AND “POSITIVE” FEEDBACK IN AN OBSCURED HIGH-z QUASAR , 2014, 1411.4208.

[11]  R. Neri,et al.  High resolution observations of HCN and HCO^{+}J = 3-2 in the disk and outflow of Mrk 231. Detection of vibrationally excited HCN in the warped nucleus , 2014, 1411.2474.

[12]  D. Sijacki,et al.  Fast cold gas in hot AGN outflows , 2014, 1411.0678.

[13]  M. Mignoli,et al.  Galaxy-wide outflows in z ~ 1.5 luminous obscured quasars revealed through near-IR slit-resolved spectroscopy , 2014, 1410.5468.

[14]  R. Neri,et al.  Very extended cold gas, star formation and outflows in the halo of a bright QSO at z>6 , 2014, 1409.4418.

[15]  G. Zamorani,et al.  X-shooter reveals powerful outflows in z ∼ 1.5 X-ray selected obscured quasi-stellar objects , 2014, 1409.1615.

[16]  K. Jahnke,et al.  Integral field spectroscopy of nearby QSOs – I. ENLR size–luminosity relation, ongoing star formation and resolved gas-phase metallicities , 2014, 1406.4131.

[17]  D. Sijacki,et al.  Feedback from active galactic nuclei: energy- versus momentum-driving , 2014, Monthly Notices of the Royal Astronomical Society.

[18]  S. Juneau,et al.  THERMAL AND RADIATIVE ACTIVE GALACTIC NUCLEUS FEEDBACK HAVE A LIMITED IMPACT ON STAR FORMATION IN HIGH-REDSHIFT GALAXIES , 2014, 1405.7971.

[19]  M. V. Fernandes,et al.  Search for TeV Gamma-ray Emission from GRB 100621A, an extremely bright GRB in X-rays, with H.E.S.S , 2014, 1405.0488.

[20]  A. M. Swinbank,et al.  Kiloparsec-scale outflows are prevalent among luminous AGN: outflows and feedback in the context of the overall AGN population , 2014, 1403.3086.

[21]  A. King,et al.  Galaxy-wide outflows: cold gas and star formation at high speeds , 2014, 1401.0392.

[22]  S. Nayakshin.  Two-phase model for black hole feeding and feedback , 2013, 1311.4492.

[23]  S. Veilleux,et al.  Massive molecular outflows and evidence for AGN feedback from CO observations , 2013, 1311.2595.

[24]  O. Shemmer,et al.  Locating star-forming regions in quasar host galaxies , 2013, 1311.1978.

[25]  S. Veilleux,et al.  BREAKING THE OBSCURING SCREEN: A RESOLVED MOLECULAR OUTFLOW IN A BURIED QSO , 2013, 1308.4988.

[26]  R. Norris,et al.  ACTIVE GALACTIC NUCLEUS FEEDBACK WORKS BOTH WAYS , 2013 .

[27]  R. Maiolino,et al.  High resolution mapping of CO(1–0) in NGC 6240 , 2013, 1307.1048.

[28]  L. Kewley,et al.  THEORETICAL EVOLUTION OF OPTICAL STRONG LINES ACROSS COSMIC TIME , 2013, 1307.0508.

[29]  R. Norris,et al.  AGN feedback works both ways , 2013, 1306.6468.

[30]  S. Nayakshin,et al.  AGN outflows trigger starbursts in gas-rich galaxies , 2013, 1306.0684.

[31]  L. Ho,et al.  Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies: Supplemental Material , 2013, 1304.7762.

[32]  D. Elbaz,et al.  NGC 6240: extended CO structures and their association with shocked gas , 2012, 1211.0841.

[33]  A. M. Swinbank,et al.  Energetic galaxy-wide outflows in high-redshift ultraluminous infrared galaxies hosting AGN activity , 2012, 1205.1801.

[34]  G. Brammer,et al.  THE STAR FORMATION MASS SEQUENCE OUT TO z = 2.5 , 2012, 1205.0547.

[35]  R. Maiolino,et al.  The physics and the structure of the quasar-driven outflow in Mrk 231 , 2012, 1204.5881.

[36]  Andrew C. Fabian,et al.  Observational Evidence of Active Galactic Nuclei Feedback , 2012 .

[37]  N. Evans,et al.  Star Formation in the Milky Way and Nearby Galaxies , 2012, 1204.3552.

[38]  F. Walter,et al.  Evidence of strong quasar feedback in the early Universe , 2012, 1204.2904.

[39]  D. Elbaz,et al.  THE HIDDEN “AGN MAIN SEQUENCE”: EVIDENCE FOR A UNIVERSAL BLACK HOLE ACCRETION TO STAR FORMATION RATE RATIO SINCE z ∼ 2 PRODUCING AN MBH–M* RELATION , 2012, 1204.2824.

[40]  E. Quataert,et al.  The physics of galactic winds driven by active galactic nuclei , 2012, 1204.2547.

[41]  A. Marconi,et al.  Observational evidence of quasar feedback quenching star formation at high redshift , 2011, 1112.3071.

[42]  L. Ho,et al.  RECONSTRUCTING THE STELLAR MASS DISTRIBUTIONS OF GALAXIES USING S4G IRAC 3.6 AND 4.5 μm IMAGES. I. CORRECTING FOR CONTAMINATION BY POLYCYCLIC AROMATIC HYDROCARBONS, HOT DUST, AND INTERMEDIATE-AGE STARS , 2011, 1110.2683.

[43]  U. Tsukuba,et al.  Infrared 3–4 μm Spectroscopy of Nearby PG QSOs and AGN–Nuclear Starburst Connections in High-Luminosity AGN Populations , 2011, 1101.1970.

[44]  A. R. King,et al.  Black Hole Outflows , 2009, 0911.1639.

[45]  Shy Genel,et al.  THE SINS SURVEY: SINFONI INTEGRAL FIELD SPECTROSCOPY OF z ∼ 2 STAR-FORMING GALAXIES , 2009, 0903.1872.

[46]  B. Garilli,et al.  THE ENVIRONMENTS OF ACTIVE GALACTIC NUCLEI WITHIN THE zCOSMOS DENSITY FIELD , 2008, 0812.3402.

[47]  C. Conselice,et al.  Exploring the Evolutionary Paths of the Most Massive Galaxies since z ~ 2 , 2008, 0807.1069.

[48]  F. Fiore,et al.  The Blast Wave Model for AGN Feedback: Effects on AGN Obscuration , 2008, 0806.4543.

[49]  P. Andreani,et al.  Star Formation in the Hosts of High-z QSOs: Evidence from Spitzer PAH Detections , 2008, 0805.2669.

[50]  R. Davies,et al.  A method to remove residual OH emission from near-infrared spectra , 2007 .

[51]  P. Hopkins,et al.  The Relation between Quasar and Merging Galaxy Luminosity Functions and the Merger-driven Star Formation History of the Universe , 2006, astro-ph/0602290.

[52]  T. D. Matteo,et al.  Energy input from quasars regulates the growth and activity of black holes and their host galaxies , 2005, Nature.

[53]  O. Shemmer,et al.  Near-Infrared Spectroscopy of High-Redshift Active Galactic Nuclei. I. A Metallicity-Accretion Rate Relationship , 2004, astro-ph/0406559.

[54]  O. Shemmer,et al.  Near-Infrared Spectroscopy of High-Redshift Active Galactic Nuclei. II. Disappearing Narrow-Line Regions and the Role of Accretion , 2004, astro-ph/0406560.

[55]  Timothy M. Heckman,et al.  The host galaxies of active galactic nuclei , 2003 .

[56]  R. Maiolino,et al.  Local supermassive black holes, relics of active galactic nuclei and the X-ray background , 2003, astro-ph/0311619.

[57]  R. Nichol,et al.  Quantifying the Bimodal Color-Magnitude Distribution of Galaxies , 2003, astro-ph/0309710.

[58]  G. Granato,et al.  A Physical Model for the Coevolution of QSOs and Their Spheroidal Hosts , 2003, astro-ph/0307202.

[59]  G. Chabrier.  Galactic Stellar and Substellar Initial Mass Function , 2003, astro-ph/0304382.

[60]  A. Marconi,et al.  The Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity , 2003, astro-ph/0304274.

[61]  P. Dokkum,et al.  Cosmic-Ray Rejection by Laplacian Edge Detection , 2001, astro-ph/0108003.

[62]  Ralf Bender,et al.  A Relationship between Nuclear Black Hole Mass and Galaxy Velocity Dispersion , 2000, astro-ph/0006289.

[63]  D. Merritt,et al.  A Fundamental Relation between Supermassive Black Holes and Their Host Galaxies , 2000, astro-ph/0006053.

[64]  S. Tremaine,et al.  The Demography of Massive Dark Objects in Galaxy Centers , 1997, astro-ph/9708072.

[65]  R. Somerville,et al.  THE RELATION BETWEEN QUASAR AND MERGING GALAXY LUMINOSITY FUNCTIONS AND THE MERGER-INDUCED STAR FORMATION RATE OF THE UNIVERSE , 2006 .