A multiwavelength view of cooling versus AGN heating in the X-ray luminous cool-core of Abell 3581★
| Autor: | Alastair C. Edge, Craig L. Sarazin, R. M. Johnstone, Steven W. Allen, Dharam V. Lal, Jeremy S. Sanders, Rebecca E. A. Canning, A. C. Fabian, P. Salomé, Tracy E. Clarke, Mouyuan Sun, Simona Giacintucci, Norbert Werner, Paul Nulsen, Megan Donahue |
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| Přispěvatelé: | Institute of Astronomy [Cambridge], University of Cambridge [UK] (CAM), University of Michigan [Ann Arbor], University of Michigan System, Department of Physics, University of Wales, Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Génie Enzymatique et Cellulaire (GEC), Université de Technologie de Compiègne (UTC)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Paris (ENS-PSL) |
| Rok vydání: | 2013 |
| Předmět: |
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Active galactic nucleus active [Galaxies] Radio galaxy Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences clusters: intracluster medium [Galaxies] Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Galaxy merger 01 natural sciences Galaxy group ISM [Galaxies] 0103 physical sciences Brightest cluster galaxy 010303 astronomy & astrophysics ComputingMilieux_MISCELLANEOUS Astrophysics::Galaxy Astrophysics [PHYS]Physics [physics] Physics Supermassive black hole 010308 nuclear & particles physics Astronomy Astronomy and Astrophysics Galaxy Abell 2744 Space and Planetary Science [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] groups: individual: Abell 3581 [Galaxies] Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Monthly notices of the Royal Astronomical Society, 2013, Vol.435(2), pp.1108-1125 [Peer Reviewed Journal] Monthly Notices of the Royal Astronomical Society Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2013, 435 (2), pp.1108-1125. ⟨10.1093/mnras/stt1345⟩ Monthly Notices of the Royal Astronomical Society, 2013, 435 (2), pp.1108-1125. ⟨10.1093/mnras/stt1345⟩ |
| ISSN: | 1365-2966 0035-8711 |
| DOI: | 10.1093/mnras/stt1345 |
| Popis: | We report the results of a multi-wavelength study of the nearby galaxy group, Abell 3581 (z=0.0218). This system hosts the most luminous cool core of any nearby group and exhibits active radio mode feedback from the super-massive black hole in its brightest group galaxy, IC 4374. The brightest galaxy has suffered multiple active galactic nucleus outbursts, blowing bubbles into the surrounding hot gas, which have resulted in the uplift of cool ionised gas into the surrounding hot intragroup medium. High velocities, indicative of an outflow, are observed close to the nucleus and coincident with the radio jet. Thin dusty filaments accompany the uplifted, ionised gas. No extended star formation is observed, however, a young cluster is detected just north of the nucleus. The direction of rise of the bubbles has changed between outbursts. This directional change is likely due to sloshing motions of the intragroup medium. These sloshing motions also appear to be actively stripping the X-ray cool core, as indicated by a spiraling cold front of high metallicity, low temperature, low entropy gas. Comment: 18 pages, 16 figures, accepted for publication in MNRAS |
| Databáze: | OpenAIRE |
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