A Multiwavelength Study of the Cool Core Cluster MACS J1447.4+0827
| Autor: | M. Latulippe, Alastair C. Edge, A. Richard-Laferrière, Jeremy S. Sanders, A. von der Linden, Marie-Lou Gendron-Marsolais, Steven W. Allen, M. Prasow-Émond, Julie Hlavacek-Larrondo, Carter Rhea, A. Mantz |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
X-ray astronomy Supermassive black hole Active galactic nucleus 010308 nuclear & particles physics High-energy astronomy Astronomy and Astrophysics Astrophysics 01 natural sciences Galaxy Jansky Astrophysical jet Space and Planetary Science 0103 physical sciences 010303 astronomy & astrophysics Galaxy cluster |
| Zdroj: | Astronomical journal, 2020, Vol.160(3), pp.103 [Peer Reviewed Journal] |
| ISSN: | 1538-3881 |
| Popis: | Clusters of galaxies are outstanding laboratories for understanding the physics of supermassive black hole (SMBH) feedback. Here we present the first Chandra, Karl G. Jansky Very Large Array, and Hubble Space Telescope analysis of MACS J1447.4+0827 (z = 0.3755), one of the strongest cool core clusters known, in which extreme feedback from its central SMBH is needed to prevent the hot intracluster gas from cooling. Using this multiwavelength approach, including 70 ks of Chandra X-ray observations, we detect the presence of collimated jetted outflows that coincide with a southern and a northern X-ray cavity. The total mechanical power associated with these outflows (Pcav ≈ 6 × 1044 erg s−1) is roughly consistent with the energy required to prevent catastrophic cooling of the hot intracluster gas (Lcool = 1.71 ± 0.01 × 1045 erg s−1 for tcool = 7.7 Gyr), implying that powerful SMBH feedback was in place several Gyr ago in MACS J1447.7+0827. In addition, we detect the presence of a radio minihalo that extends over 300 kpc in diameter (P1.4GHz = 3.0 ± 0.3 × 1024 W Hz−1). The X-ray observations also reveal an ~20 kpc plumelike structure that coincides with optical dusty filaments that surround the central galaxy. Overall, this study demonstrates that the various physical phenomena occurring in the most nearby clusters of galaxies are also occurring in their more distant analogs. |
| Databáze: | OpenAIRE |
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