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Gas S tripping P henomena in galaxies

This project aims to study the gas removal processes from galaxies and their impact on evolutionary histories. It involves a multi-wavelength study of galaxies in clusters, groups, and filaments, with observations from various telescopes. The project is funded by the European Research Council.

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Gas S tripping P henomena in galaxies

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  1. Gas Stripping Phenomena in galaxies This project has received funding from the European Reseach Council (ERC) under the Horizon 2020 research and innovation programme (grant agreement N. 833824)

  2. 2.5 Meuro Submitted 30 August 2018, started 1st of June 2019, 5 years 4 post-docs + 2 students (and whole GASP team!)

  3. Gas loss and accretion regulate the evolutionary histories of galaxies GASP wants to attain a significant advancement in our understanding of gas removal (and accretion) processes from galaxies Multi-wavelength study of a statistically significant sample of galaxies in clusters, groups and filaments. FULL MUSE SAMPLE + MULTI-WAVELENGTH FOLLOW-UPS

  4. OBSERVATIONS • 120 hr MUSE@VLT (ESO LP): 114 galaxies, completed April 2018 • DR1 in 2017, final DR2 submitted May 2019 by Marco • IONIZED GAS AND STARS • APEX CO(2-1): 5 galaxies (Moretti et al. 2018) • MOLECULAR GAS • ALMA CO(2-1) & CO(1-0): 4 galaxies • MOLECULAR GAS (HIGH RESOLUTION) • UVIT@ASTROSAT (some) NUV and FUV for 7 galaxy clusters • YOUNG STARS • JVLA C-array + MeerKAT: 6 clusters • NEUTRAL GAS and RADIO CONTINUUM EMISSION • JVLA: 50hr S-band for measuring magnetic field in one galaxy • MAGNETIC FIELD (!)

  5. PROPOSED OBSERVATIONS Awaiting evaluation • HST: 12 galaxies, WFC3/UVIS F275W, F336W, F606W, F814W (UV to I) + Halpha narrow F680N (PI Marco Gullieuszik) • ALMA : CO(2-1) of 12 galaxies (PI AlessiaMoretti) • X-Shooter: 6 galaxies with AGN (PI Yara Jaffe’) • Chandra: 1 galaxy very deep (PI Alessandro Ignesti) • JVLA DDT B-band time for 1 galaxy (PI Tirna Deb) + close link with hydrodynamical simulations (small scale, cluster scale, cosmological)

  6. + 4MOST StePS-SOUTH Bianca M. Poggianti INAF-OAPadova Angela Iovino – INAF-OABrera A. Mercurio, M.Longhetti, S. Zibetti, F. laBarbera, L. Costantin, L. Pozzetti, A. Gallazzi, M. Bolzonella, C. Haines, I. Lonoce, S. Trager, M. Balcells, I. Ferreras, R. Garcia Benito, R. Gonzales-Delgado, J. Iglesias Paramo, J. Knapen, L. Morelli, A. Pizzella, S. McGee, P. Sanchez Blazquez, C. Weidner, P. Merluzzi, G. Busarello, E. Zucca, S. Bardelli, C. Jakob Walcher, C Tortora, D. Vergani, D. Murphy, L. Peralta de Arriba, M. Talia, N. Napolitano, N. Salvador, O. Cucciati StePS StellarPopulations at intermediate redshift Survey B. Poggianti

  7. 30K galaxies with IAB<=20.5 pre-selected from photometric redshifts to be at z = 0.3-0.7. • high signal-to-noise spectra (S/N>15 per resolution element – needing 7hr exposure) in order to: • study stellar ages, star formation and star formation histories, stellar and gas metallicities, • stellar velocity dispersions and gas kinematics, • the relations with their intrinsic (galaxy stellar mass, morphology/color/size) and environmental properties

  8. StePS science goal: Extend to higher redshift and with comparable wealth of data the work done in the local universe by surveys like SDSS and GAMA. SURVEYS START SPRING 2020, stay tuned! StePS uniqueness: excellent spectral quality (all main galaxy properties) for a large sample of galaxies covering a range of cosmic time, galaxy intrinsic properties (stellar mass, type, color) and environment.

  9. GASP PAPERS PUBLISHED • GASP I: Gas stripping phenomena in galaxies with MUSE • Poggianti+ 2017a • GASP II: A MUSE view of extreme ram –pressure stripping along the line of sight • Bellhouse+ 2017 • GASP III: JO36: a case of multiple environmental effects at play? • Fritz+ 2017 • GASP IV: A MUSE view of extreme ram-pressure stripping in the plane of the sky: the case of jellyfish galaxy JO204 • Gullieuszik+ 2017 • GASP V: Ram pressure stripping of a ring Hoag’s-like galaxy in a massive cluster • Moretti+ 2018a • (GASP VI:) Supermassive black holes feed on cosmic jellyfish • Poggianti+ 2017b • GASP VII: Signs of gas inflow onto a lopsided galaxy • Vulcani+ 2018a • GASP VIII: Capturing the birth of a tidal dwarf galaxy in a merging system at z~0.05 • Vulcani+ 2017 • GASP IX: Jellyfish galaxies in phase-space: an orbital study of intense ram pressure stripping in clusters • Jaffe’+ 2018 • GASP X: APEX detection of molecular gas in the tails and in the disks of ram-pressure stripped galaxies • Moretti+ 2018b

  10. (GASP XI:) Ultraviolet imaging Telescope view of ram-pressure stripping in action: star formation in the stripped gas of the GASP jellyfish galaxy JO201 in Abell 85 • George+ 2018 • GASP XII: The variety of physical processes occurring in a single galaxy group in formation • Vulcani+ 2018b • GASP XIII: Star formation in gas outside galaxies • Poggianti+ 2019 • (GASP XIV:) Enhanced star formation in both disks and ram pressure stripped tails of GASP jellyfish galaxies • Vulcani+ 2018c • GASP XV: A MUSE view of extreme ram pressure stripping along the line of sight: physical properties of the jellyfish galaxy JO201 • Bellhouse+ 2019 • GASP XVI: Does cosmic web enhancement turn on star formation in galaxies? • Vulcani+ 2019 • GASP XVII: HI imaging of the jellyfish galaxy JO206: gas stripping and enhanced star formation • Ramatsoukou+ 2019 • GASP XVIII: Star formation quenching due to AGN feedback in the central region of a jellyfish galaxy • George+ 2019 • GASP XIX: AGN and their outflows at the center of jellyfish galaxies • Radovich+ 2019

  11. PAPERS RE-SUBMITTED (post-referee, soon on astro-ph) • GASP XX: From the spatially-resolved to the global SFR-Mass relation in local spiral galaxies • Vulcani+ re-submitted

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