Nuclear Activity in Galaxies: a 3D Perspective from the Nucleus to the Outskirts

    General
    Description

    This project consists of two main research lines. First, the study of quasar-driven outflows in luminous and nearby obscured active galactic nuclei (AGN) and the impact that they have on their massive host galaxies (AGN feedback). To do so, we have obtained Gran Telescopio CANARIAS (GTC) infrared and optical observations with the instruments CanariCam, EMIR and MEGARA, as well as with ALMA in the sub-mm/mm regime. Part of this project is being done within the framework of the H2020 Innovative Training Network BID4BEST. The group is also devoted to obtain and exploit observing time with the JWST and ALMA as part of the GATOS consortium (Galactic Activity, Torus and Outflow Survey) with the aim of characterizing nuclear obscuration and the gas flow cycle in local AGN. Second, the application of integral field spectroscopy to the study of extended objects (active and star forming galaxies) to investigate the triggering of both phenomena. We also contribute to the development of new instruments and data analysis procedures related to 3D observing techniques. In particular, we participate in the development of HARMONI, the first-light high-spatial resolution integral field spectrograph for the ESO Extremely Large Telescope.

    Principal investigator
    Project staff
    1. Publication of a letter in MNRAS in which we studied the interplay between the ionized gas winds and the young stellar populations in the type-2 quasar Mrk 34 (Bessiere & Ramos Almeida 2022). We find evidence of positive and negative feedback happening in different parts of the same galaxy, induced by the ionized outflow. This study, part of the QSOFEED project, opens a new window to investigate the direct impact of nuclear activity on star formation in galaxies.

    2. Publication of a detailed study of the ionized and warm molecular gas kinematics in the type-2 quasar J0945+1737, part of the QSOFEED sample (Speranza et al. 2022). We reported measurements of an ionized outflow with a maximum outflow rate of 51 Msun/yr, and lack of its warm molecular counterpart.

    3. The European Network H2020-ITN-2019 "Big Data Applications for Black Hole Evolution Studies" (BID4BEST) started on March, 1st 2020 (end date Feb, 28th 2024). PhD student Giovanna Speranza started her contract at the IAC in September 2020.

    4. The total budget awarded to this project through external funding sources corresponds to 1.152.000 euros (452.000 euros - PI: C. Ramos & 700.000 euros - PI: B. García). This only includes projects starting in or after 2020, and most of the funding has been invested in hiring new researchers. Currently we are the IAC group with larger female participation.

    5. Publication of the two first papers based on the GATOS sample (García-Burillo et al. 2021; Alonso-Herrero et al. 2021). The GATOS collaboration was awarded two JWST proposals in Cycle 1, led by D. Rosario (University of Newcastle, UK) and T. Shimizu (MPE, Germany).

    6. Publication of a study of the morphology and kinematics of the cold molecular in a sample of type-2 quasars (QSO2s) at z=0.1 (Ramos Almeida et al. 2022). The study is based on data from the ALMA interferometer in the mm range, and it is part of the QSOFEED project.

    7. Publication of the work García-Lorenzo et al. (2022), which presents an analysis of the capabilities of HARMONI to reveal the stellar morpho-kinematic properties of the host galaxies of AGNs at cosmic noon.

    Related publications

    • The Galaxy Activity, Torus, and Outflow Survey (GATOS): V. Unveiling PAH survival and resilience in the circumnuclear regions of AGNs with JWST
      This study analyses JWST MIRI/MRS observations of the infrared (IR) polycyclic aromatic hydrocarbon (PAH) bands in the nuclear (∼0.4″ at 11 μm; ∼75 pc) and circumnuclear regions (inner ∼kpc) of local active galactic nuclei (AGNs) from the Galactic Activity, Torus, and Outflow Survey (GATOS). We examine the PAH properties in the circumnuclear
      García-Bernete, I. et al.

      Advertised on:

      11
      2024
      Citations
      6
    • Polycyclic Aromatic Hydrocarbon Emission in the Central Regions of Three Seyferts and the Implication for Underlying Feedback Mechanisms
      We analyze JWST Mid-Infrared Instrument/Medium Resolution Spectrograph integral field unit observations of three Seyferts from the Galactic Activity, Torus, and Outflow Survey (GATOS) and showcase the intriguing polycyclic aromatic hydrocarbon (PAH) and emission-line characteristics in regions of ∼500 pc scales over or around their active galactic
      Zhang, Lulu et al.

      Advertised on:

      11
      2024
      Citations
      2
    • A biconical ionised gas outflow and evidence of positive feedback in NGC 7172 uncovered by MIRI/JWST
      We present observations of the type-2 Seyfert NGC 7172 obtained with the medium-resolution spectrometer (MRS) of the Mid-Infrared Instrument (MIRI) on board the James Webb Space Telescope (JWST). This galaxy hosts one of the lowest ionised gas mass outflow rates (Ṁ out ∼ 0.005 M ⊙ yr ‑1) in a sample of six active galactic nuclei (AGN) with similar
      Hermosa Muñoz, L. et al.

      Advertised on:

      10
      2024
      Citations
      4
    • Gas flows in the central region of the Seyfert galaxy NGC 4593 with MUSE
      Context. Understanding how gas flows into galactic centres, fuels the active galactic nucleus (AGN), and is in turn expelled back through feedback processes is of great importance to appreciate the role AGN play in the growth and evolution of galaxies. Aims. We use Multi Unit Spectroscopic Explorer-adaptive optics (MUSE-AO) optical spectra of the
      Baki, P. et al.

      Advertised on:

      10
      2024
      Citations
      0
    • The Galaxy Activity, Torus, and Outflow Survey (GATOS). IV. Exploring Ionized Gas Outflows in Central Kiloparsec Regions of GATOS Seyferts
      Utilizing JWST MIRI/Medium Resolution Spectrograph integral field unit observations of the kiloparsec-scale central regions, we showcase the diversity of ionized gas distributions and kinematics in six nearby Seyfert galaxies included in the GATOS survey. Specifically, we present spatially resolved flux distribution and velocity field maps of six
      Rouan, Daniel et al.

      Advertised on:

      10
      2024
      Citations
      5
    • A study of interacting galaxies from the Arp-Madore catalog: Triggering of star formation and nuclear activity
      We present Gemini Multi-Object Spectrograph (GMOS) spectroscopic observations of 95 galaxies from the Arp & Madore (1987) catalog of peculiar galaxies. These galaxies have been selected because they appear to be in pairs and small groups. These observations have enabled us to confirm that 60 galaxies are indeed interacting systems. For the
      Cezar, Pedro H. et al.

      Advertised on:

      9
      2024
      Citations
      0
    • QSOFEED: Relationship between star formation and active galactic nuclei feedback
      Context. Large-scale cosmological simulations suggest that feedback from active galactic nuclei (AGN) plays a crucial role in galaxy evolution. More specifically, outflows are one of the mechanisms by which the accretion energy of the AGN is transferred to the interstellar medium (ISM), heating and driving out gas and impacting star formation (SF)
      Bessiere, P. S. et al.

      Advertised on:

      9
      2024
      Citations
      2
    • Deciphering the imprint of active galactic nucleus feedback in Seyfert galaxies: Nuclear-scale molecular gas deficits
      We study the distribution of cold molecular gas in the circumunuclear disks (CND; r ≤ 200 pc) of a sample of 64 nearby (D L = 7 ‑ 45 Mpc) disk galaxies – including 45 active galactic nuclei (AGN) and 19 nonAGN – for which high-spatial-resolution (median value ≃36 pc) multiline CO interferometer observations have been obtained at millimeter
      García-Burillo, S. et al.

      Advertised on:

      9
      2024
      Citations
      6
    • GATOS: missing molecular gas in the outflow of NGC 5728 revealed by JWST
      The ionisation cones of NGC 5728 have a deficit of molecular gas based on millimetre observations of CO (2-1) emission. Although photoionisation from the active nucleus may lead to suppression of this transition, warm molecular gas can still be present. We report the detection of eight mid-infrared rotational H 2 lines throughout the central
      Davies, R. et al.

      Advertised on:

      9
      2024
      Citations
      10
    • An ALMA CO(1-0) survey of the 2Jy sample: large and massive molecular discs in radio AGN host galaxies
      The jets of radio AGN provide one of the most important forms of active galactic nuclei (AGN) feedback, yet considerable uncertainties remain about how they are triggered. Since the molecular gas reservoirs of the host galaxies can supply key information about the dominant triggering mechanism(s), here we present Atacama Large Millimeter/sub
      Tadhunter, C. et al.

      Advertised on:

      8
      2024
      Citations
      1
    • Dust beyond the torus: revealing the mid-infrared heart of local Seyfert ESO 428-G14 with JWST/MIRI
      Polar dust has been discovered in a number of local active galactic nuclei (AGN), with radiation-driven torus models predicting a wind to be its main driver. However, little is known about its characteristics, spatial extent, or connection to the larger scale outflows. We present the first JWST/MIRI study aimed at imaging polar dust by zooming on
      Haidar, Houda et al.

      Advertised on:

      8
      2024
      Citations
      3
    • Accretion properties of X-ray AGN: evidence for radiation-regulated obscuration with redshift-dependent host galaxy contribution
      We adopt a Bayesian X-ray spectral approach to investigate the accretion properties of unobscured ($20\lt \log (N_{\rm H}/{\rm cm}^{-2}\lt 22$) and obscured ($22\lt \log (N_{\rm H}/{\rm cm}^{-2}\lt 24$) active galactic nuclei (AGNs) to shed light on the orientation versus evolution scenarios for the origin of the obscuring material. For a sample of
      Laloux, Brivael et al.

      Advertised on:

      8
      2024
      Citations
      3
    • The miniJPAS Survey: The radial distribution of star formation rates in faint X-ray active galactic nuclei
      We study the impact of black hole nuclear activity on both the global and radial star formation rate (SFR) profiles in X-ray-selected active galactic nuclei (AGN) in the field of miniJPAS, the precursor of the much wider J-PAS project. Our sample includes 32 AGN with z < 0.3 detected via the XMM-Newton and Chandra surveys. For comparison, we
      Acharya, Nischal et al.

      Advertised on:

      7
      2024
      Citations
      2
    • A 20 kiloparsec bipolar Lyman α outflow from a radio galaxy at z = 2.95
      The study of ionized gas kinematics in high-z active galaxies plays a key part in our understanding of galactic evolution, in an age where nuclear activity was widespread and star formation close to its peak. We present a study of TXS 0952−217, a radio galaxy at z = 2.95, using VLT/MUSE integral field optical spectroscopy as part of a project aimed
      Coloma Puga, M. et al.

      Advertised on:

      6
      2024
      Citations
      0
    • Ionised AGN outflows in the Goldfish galaxy: The illuminating and interacting red quasar eFEDSJ091157.4+014327 at z ∼ 0.6
      Context. Evolutionary models suggest that the initial growth phases of active galactic nuclei (AGN) and their central supermassive black holes (SMBHs) are dust-enshrouded and characterised by jet or wind outflows that should gradually clear the interstellar medium (ISM) in the host by heating and/or expelling the surrounding gas. eFEDSJ091157.4
      Musiimenta, B. et al.

      Advertised on:

      7
      2024
      Citations
      1
    • Scrutinizing evidence for the triggering of active galactic nuclei in the outskirts of massive galaxy clusters at z ≈ 1
      Environmental effects are believed to play an important yet poorly understood role in triggering accretion events onto the supermassive black holes (SMBHs) of galaxies (active galactic nuclei; AGNs). Massive clusters, which represent the densest structures in the Universe, provide an excellent laboratory to isolate environmental effects and study
      Muñoz Rodríguez, Iván et al.

      Advertised on:

      7
      2024
      Citations
      0
    • MUSE view of PDS 456: Kiloparsec-scale wind, extended ionized gas, and close environment
      PDS 456 is the most luminous (L bol ∼ 10 47 erg s −1) radio-quiet quasar at z < 0.3 and can be regarded as a local counterpart of the powerful quasars shining at Cosmic Noon. It hosts a strong nuclear X-ray ultra-fast (∼0.3c) outflow, and a massive and clumpy CO (3-2) molecular outflow extending up to ∼5 kpc from the nucleus. We analyzed the first
      Travascio, A. et al.

      Advertised on:

      6
      2024
      Citations
      1
    • AGN feedback in the Local Universe: Multiphase outflow of the Seyfert galaxy NGC 5506
      We present new optical GTC/MEGARA seeing-limited (0.9″) integral-field observations of NGC 5506, together with ALMA observations of the CO(3 − 2) transition at a 0.2″ (∼25 pc) resolution. NGC 5506 is a luminous (bolometric luminosity of ∼10 44 erg s −1) nearby (26 Mpc) Seyfert galaxy, part of the Galaxy Activity, Torus, and Outflow Survey (GATOS)
      Esposito, Federico et al.

      Advertised on:

      6
      2024
      Citations
      2
    • Towards an observationally motivated AGN dusty torus model - I. Dust chemical composition from the modelling of Spitzer spectra
      Spectral energy distribution (SED) fitting is one of the most commonly used techniques to study the dust properties in active galactic nuclei (AGN). Works implementing this technique commonly use radiative transfer models that assume a variety of dust properties. Despite the key role of this aspect, limited effort has been put forward to explore
      Reyes-Amador, Omar Ulises et al.

      Advertised on:

      6
      2024
      Citations
      0
    • Observational constraints on the stellar recycled gas in active galactic nuclei feeding
      Near-infrared long-slit spectroscopy has been used to study the stellar population (SP) of the low luminosity active galactic nuclei (AGNs) and matched analogues (LLAMA) sample. To perform the SP fits we have employed the X-shooter simple stellar population models together with the STARLIGHT code. Our main conclusions are: The star formation
      Riffel, Rogério et al.

      Advertised on:

      6
      2024
      Citations
      4

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