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Cluster Outskirts and Their Connection to the Cosmic Web

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Handbook of X-ray and Gamma-ray Astrophysics

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Abstract

We review the latest developments in our X-ray observational and theoretical understanding of the outskirts of galaxy cluster, and their connection to the cosmic web. The faint cluster outskirts are challenging regions to observe in X-rays, requiring highly sensitive telescopes with low and stable background levels. We present our latest understanding of the thermodynamic profiles of clusters in the outskirts and the biases that gas clumping and non-thermal pressure support can introduce. Features in the outskirts due to merging activity are discussed, along with the chemical enrichment of the outskirts ICM. We describe future prospects for X-ray observations to explore further out in the cluster outskirts and probe their connections to the cosmic web.

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References

  • S. Adhikari, N. Dalal, R.T. Chamberlain, Splashback in accreting dark matter halos. JCAP 11, 019 (2014)

    ADS  Google Scholar 

  • H. Akamatsu, H. Kawahara, Systematic X-ray analysis of radio relic clusters with Suzaku. PASJ 65, 16 (2013)

    ADS  Google Scholar 

  • H. Akamatsu, S. Inoue, T. Sato, K. Matsusita, Y. Ishisaki, C.L. Sarazin, Suzaku X-ray observations of the accreting NGC 4839 group of galaxies and a radio relic in the coma cluster. PASJ 65, 89 (2013)

    ADS  Google Scholar 

  • H. Akamatsu, R.J. van Weeren, G.A. Ogrean, H. Kawahara, A. Stroe, D. Sobral, M. Hoeft, H. Röttgering, M. Brüggen, J.S. Kaastra, Suzaku X-ray study of the double radio relic galaxy cluster CIZA J2242.8+5301. Astron. Astrophys. 582, A87 (2015)

    Google Scholar 

  • H. Akamatsu, M. Mizuno, N. Ota, Y.Y. Zhang, R.J. van Weeren, H. Kawahara, Y. Fukazawa, J.S. Kaastra, M. Kawaharada, K. Nakazawa, T. Ohashi, H.J.A. Röttgering, M. Takizawa, J. Vink, F. Zandanel, Suzaku observations of the merging galaxy cluster Abell 2255: the northeast radio relic. Astron. Astrophys. 600, A100 (2017)

    Google Scholar 

  • G.E. Alvarez, S.W. Randall, H. Bourdin, C. Jones, K. Holley-Bockelmann, Chandra and XMM-Newton observations of the Abell 3395/Abell 3391 intercluster filament. APJ 858, 44 (2018)

    ADS  Google Scholar 

  • M. Arnaud, G.W. Pratt, R. Piffaretti, H. Böhringer, J.H. Croston, E. Pointecouteau, The universal galaxy cluster pressure profile from a representative sample of nearby systems (REXCESS) and the YSZ – M500 relation. Astron. Astrophys. 517, A92 (2010)

    ADS  Google Scholar 

  • Y. Ascasibar, M. Markevitch, The origin of cold fronts in the cores of relaxed galaxy clusters. APJ 650, 102–127 (2006)

    ADS  Google Scholar 

  • M. Asplund, N. Grevesse, A.J. Sauval, P. Scott, The chemical composition of the sun. ARA&A 47, 481–522 (2009)

    ADS  Google Scholar 

  • H. Aung, D. Nagai, E.T. Lau, Shock and splash: gas and dark matter halo boundaries around ΛCDM galaxy clusters. MNRAS 508, 2071–2078 (2021)

    ADS  Google Scholar 

  • C. Avestruz, E.T. Lau, D. Nagai, A. Vikhlinin, Testing X-ray measurements of galaxy cluster outskirts with cosmological simulations. APJ 791, 117 (2014)

    ADS  Google Scholar 

  • C. Avestruz, D. Nagai, E.T. Lau, K. Nelson, Non-equilibrium electrons in the outskirts of galaxy clusters. APJ 808, 176 (2015)

    ADS  Google Scholar 

  • V. Biffi, S. Borgani, G. Murante, E. Rasia, S. Planelles, G.L. Granato, C. Ragone-Figueroa, A.M. Beck, M. Gaspari, K. Dolag, On the nature of hydrostatic equilibrium in galaxy clusters. APJ 827, 112 (2016)

    ADS  Google Scholar 

  • V. Biffi, S. Planelles, S. Borgani, E. Rasia, G. Murante, D. Fabjan, M. Gaspari, The origin of ICM enrichment in the outskirts of present-day galaxy clusters from cosmological hydrodynamical simulations. MNRAS 476, 2689–2703 (2018)

    ADS  Google Scholar 

  • J.N. Bregman, The search for the missing Baryons at Low Redshift. ARA&A 45, 221–259 (2007)

    ADS  Google Scholar 

  • G.L. Bryan, M.L. Norman, Statistical properties of X-ray clusters: analytic and numerical comparisons. APJ 495, 80–+ (1998)

    Google Scholar 

  • R. Cen, J.P. Ostriker, Where are the baryons?. APJ 514, 1–6 (1999)

    ADS  Google Scholar 

  • E. Churazov, I. Khabibullin, N. Lyskova, R. Sunyaev, A.M. Bykov, Tempestuous life beyond R500: X-ray view on the Coma cluster with SRG/eROSITA. I. X-ray morphology, recent merger, and radio halo connection. Astron. Astrophys. 651, A41 (2021)

    Google Scholar 

  • T. Connor, D.D. Kelson, J. Mulchaey, A. Vikhlinin, S.G. Patel, M.L. Balogh, G. Joshi, R. Kraft, D. Nagai, S. Starikova, Wide-field optical spectroscopy of Abell 133: a search for filaments reported in X-ray observations. APJ 867, 25 (2018)

    ADS  Google Scholar 

  • W. Cui, A. Knebe, N.I. Libeskind, S. Planelles, X. Yang, W. Cui, R. Davé, X. Kang, R. Mostoghiu, L. Staveley-Smith, H. Wang, P. Wang, G. Yepes, The large-scale environment from cosmological simulations II: the redshift evolution and distributions of baryons. MNRAS 485, 2367–2379 (2019)

    ADS  Google Scholar 

  • R. Davé, R. Cen, J.P. Ostriker, G.L. Bryan, L. Hernquist, N. Katz, D.H. Weinberg, M.L. Norman, B. O’Shea, Baryons in the warm-hot intergalactic medium. APJ 552, 473–483 (2001)

    ADS  Google Scholar 

  • B. Diemer, A.V. Kravtsov, Dependence of the outer density profiles of halos on their mass accretion rate. APJ 789, 1 (2014)

    ADS  Google Scholar 

  • K. Dolag, M. Meneghetti, L. Moscardini, E. Rasia, A. Bonaldi, Simulating the physical properties of dark matter and gas inside the cosmic web. MNRAS 370, 656–672 (2006)

    ADS  Google Scholar 

  • E.M. Douglass, E.L. Blanton, S.W. Randall, T.E. Clarke, L.O.V. Edwards, Z. Sabry, J.A. ZuHone, The megaparsec-scale gas-sloshing spiral in the Remnant Cool Core Cluster Abell 1763. APJ 868, 121 (2018)

    ADS  Google Scholar 

  • D. Eckert, M. Jauzac, H. Shan, J.-P. Kneib, T. Erben, H. Israel, E. Jullo, M. Klein, R. Massey, J. Richard, C. Tchernin, Warm-hot baryons comprise 5–10 percent of filaments in the cosmic web. Nature 528, 105–107 (2015a)

    ADS  Google Scholar 

  • D. Eckert, M. Roncarelli, S. Ettori, S. Molendi, F. Vazza, F. Gastaldello, M. Rossetti, Gas clumping in galaxy clusters. MNRAS 447, 2198–2208 (2015b)

    ADS  Google Scholar 

  • D. Eckert, V. Ghirardini, S. Ettori, E. Rasia, V. Biffi, E. Pointecouteau, M. Rossetti, S. Molendi, F. Vazza, F. Gastaldello, M. Gaspari, S. De Grandi, S. Ghizzardi, H. Bourdin, C. Tchernin, M. Roncarelli, Non-thermal pressure support in X-COP galaxy clusters. Astron. Astrophys. 621, A40 (2019)

    Google Scholar 

  • D.C. Fox, A. Loeb, Do the electrons and ions in X-ray clusters share the same temperature?. APJ 491, 459–+ (1997)

    Google Scholar 

  • M. Fukugita, C.J. Hogan, P.J.E. Peebles, The cosmic baryon budget. APJ 503, 518–530 (1998)

    ADS  Google Scholar 

  • V. Ghirardini, S. Ettori, D. Eckert, S. Molendi, F. Gastaldello, E. Pointecouteau, G. Hurier, H. Bourdin, The XMM Cluster Outskirts Project (X-COP): Thermodynamic properties of the intracluster medium out to R200 in Abell 2319. Astron. Astrophys. 614, A7 (2018)

    ADS  Google Scholar 

  • V. Ghirardini, D. Eckert, S. Ettori, E. Pointecouteau, S. Molendi, M. Gaspari, M. Rossetti, S. De Grandi, M. Roncarelli, H. Bourdin, P. Mazzotta, E. Rasia, F. Vazza, Universal thermodynamic properties of the intracluster medium over two decades in radius in the X-COP sample. Astron. Astrophys. 621, A41 (2019)

    Google Scholar 

  • A. Hoshino, J.P. Henry, K. Sato, H. Akamatsu, W. Yokota, S. Sasaki, Y. Ishisaki, T. Ohashi, M. Bautz, Y. Fukazawa, N. Kawano, A. Furuzawa, K. Hayashida, N. Tawa, J.P. Hughes, M. Kokubun, T. Tamura, X-ray temperature and mass measurements to the virial radius of Abell 1413 with Suzaku. PASJ 62, 371–389 (2010)

    ADS  Google Scholar 

  • N. Kaiser, Evolution and clustering of rich clusters. MNRAS 222, 323–345 (1986)

    ADS  Google Scholar 

  • M. Kawaharada, N. Okabe, K. Umetsu, M. Takizawa, K. Matsushita, Y. Fukazawa, T. Hamana, S. Miyazaki, K. Nakazawa, T. Ohashi, Suzaku observation of A1689: anisotropic temperature and entropy distributions associated with the large-scale structure. APJ 714, 423–441 (2010)

    ADS  Google Scholar 

  • E.T. Lau, A.V. Kravtsov, D. Nagai, Residual gas motions in the intracluster medium and bias in hydrostatic measurements of mass profiles of clusters. APJ 705, 1129–1138, Nov. 2009.

    Google Scholar 

  • E.T. Lau, D. Nagai, C. Avestruz, K. Nelson, A. Vikhlinin, Mass accretion and its effects on the self-similarity of gas profiles in the outskirts of galaxy clusters. APJ 806, 68 (2015)

    ADS  Google Scholar 

  • A. Leccardi, S. Molendi, Radial temperature profiles for a large sample of galaxy clusters observed with XMM-Newton. Astron. Astrophys. 486, 359–373 (2008)

    ADS  Google Scholar 

  • M. Markevitch, A. Vikhlinin, Shocks and cold fronts in galaxy clusters. Phys. Rep. 443, 1–53 (2007)

    ADS  Google Scholar 

  • B. Mathiesen, A.E. Evrard, J.J. Mohr, The effects of clumping and substructure on intracluster medium mass measurements. APJL 520, L21–L24 (1999)

    ADS  Google Scholar 

  • F. Mernier, V. Biffi, H. Yamaguchi, P. Medvedev, A. Simionescu, S. Ettori, N. Werner, J.S. Kaastra, J. de Plaa, L. Gu, Enrichment of the hot intracluster medium: observations. Space Sci. Rev. 214, 129 (2018)

    ADS  Google Scholar 

  • M.S. Mirakhor, S.A. Walker, A high coverage view of the thermodynamics and metal abundance in the outskirts of the nearby galaxy cluster Abell 2199. MNRAS 497, 3943–3952 (2020)

    ADS  Google Scholar 

  • M.S. Mirakhor, S.A. Walker, Gas clumping in the outskirts of the Virgo cluster. MNRAS 506, 139–148 (2021)

    ADS  Google Scholar 

  • M.S. Mirakhor, S.A. Walker, J. Runge, A detailed study of the bridge of excess X-ray emission between the galaxy clusters Abell 2029 and Abell 2033. MNRAS 509, 1109–1118 (2022)

    ADS  Google Scholar 

  • I. Mitsuishi, A. Gupta, N.Y. Yamasaki, Y. Takei, T. Ohashi, K. Sato, M. Galeazzi, J.P. Henry, R.L. Kelley, Search for X-ray emission associated with the Shapley Supercluster with Suzaku. PASJ 64, 18 (2012)

    ADS  Google Scholar 

  • S.M. Molnar, N. Hearn, Z. Haiman, G. Bryan, A.E. Evrard, G. Lake, Accretion shocks in clusters of galaxies and their SZ signature from cosmological simulations. APJ 696, 1640–1656 (2009)

    ADS  Google Scholar 

  • S. More, B. Diemer, A.V. Kravtsov, The splashback radius as a physical halo boundary and the growth of halo mass. APJ 810, 36 (2015)

    ADS  Google Scholar 

  • D. Nagai, E.T. Lau, Gas clumping in the outskirts of ΛCDM clusters. APJL 731, L10 (2011)

    ADS  Google Scholar 

  • D. Nagai, A. Vikhlinin, A.V. Kravtsov, Testing X-ray measurements of galaxy clusters with cosmological simulations. APJ 655, 98–108 (2007)

    ADS  Google Scholar 

  • K. Nelson, D.H. Rudd, L. Shaw, D. Nagai, Evolution of the merger-induced hydrostatic mass bias in galaxy clusters. APJ 751, 121 (2012)

    ADS  Google Scholar 

  • K. Nelson, E.T. Lau, D. Nagai, Hydrodynamic simulation of non-thermal pressure profiles of galaxy clusters. APJ 792, 25 (2014a)

    ADS  Google Scholar 

  • K. Nelson, E.T. Lau, D. Nagai, D.H. Rudd, L. Yu, Weighing galaxy clusters with gas. II. On the origin of hydrostatic mass bias in ΛCDM galaxy clusters. APJ 782, 107 (2014b)

    Google Scholar 

  • F. Nicastro, S. Mathur, M. Elvis, J. Drake, T. Fang, A. Fruscione, Y. Krongold, H. Marshall, R. Williams, A. Zezas, The mass of the missing baryons in the X-ray forest of the warm-hot intergalactic medium. Nature 433, 495–498 (2005)

    ADS  Google Scholar 

  • F. Nicastro, J. Kaastra, Y. Krongold, S. Borgani, E. Branchini, R. Cen, M. Dadina, C.W. Danforth, M. Elvis, F. Fiore, A. Gupta, S. Mathur, D. Mayya, F. Paerels, L. Piro, D. Rosa-Gonzalez, J. Schaye, J.M. Shull, J. Torres-Zafra, N. Wijers, L. Zappacosta, Observations of the missing baryons in the warm-hot intergalactic medium. Nature 558, 406–409 (2018)

    ADS  Google Scholar 

  • G.A. Ogrean, M. Brüggen, R. van Weeren, H. Röttgering, A. Simionescu, M. Hoeft, J.H. Croston, Multiple density discontinuities in the merging galaxy cluster CIZA J2242.8+5301. MNRAS 440, 3416–3425 (2014)

    Google Scholar 

  • Planck Collaboration, P.A.R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, J. Aumont, C. Baccigalupi, A.J. Banday, R.B. Barreiro, J.G. Bartlett, et al., Planck 2015 results. XXIV. Cosmology from Sunyaev-Zeldovich cluster counts. Astron. Astrophys. 594, A24 (2016)

    Google Scholar 

  • Planck Collaboration, N. Aghanim, Y. Akrami, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A.J. Banday, R.B. Barreiro, N. Bartolo, S. Basak, R. Battye, K. Benabed, J.P. Bernard, M. Bersanelli, P. Bielewicz, J.J. Bock, J.R. Bond, J. Borrill, F.R. Bouchet, F. Boulanger, M. Bucher, C. Burigana, R.C. Butler, E. Calabrese, J.F. Cardoso, J. Carron, A. Challinor, H.C. Chiang, J. Chluba, L.P.L. Colombo, C. Combet, D. Contreras, B.P. Crill, F. Cuttaia, P. de Bernardis, G. de Zotti, J. Delabrouille, J.M. Delouis, E. Di Valentino, J.M. Diego, O. Doré, M. Douspis, A. Ducout, X. Dupac, S. Dusini, G. Efstathiou, F. Elsner, T.A. Enßlin, H.K. Eriksen, Y. Fantaye, M. Farhang, J. Fergusson, R. Fernandez-Cobos, F. Finelli, F. Forastieri, M. Frailis, A.A. Fraisse, E. Franceschi, A. Frolov, S. Galeotta, S. Galli, K. Ganga, R.T. Génova-Santos, M. Gerbino, T. Ghosh, J. González-Nuevo, K.M. Górski, S. Gratton, A. Gruppuso, J.E. Gudmundsson, J. Hamann, W. Handley, F.K. Hansen, D. Herranz, S.R. Hildebrandt, E. Hivon, Z. Huang, A.H. Jaffe, W.C. Jones, A. Karakci, E. Keihänen, R. Keskitalo, K. Kiiveri, J. Kim, T.S. Kisner, L. Knox, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, G. Lagache, J.M. Lamarre, A. Lasenby, M. Lattanzi, C.R. Lawrence, M. Le Jeune, P. Lemos, J. Lesgourgues, F. Levrier, A. Lewis, M. Liguori, P.B. Lilje, M. Lilley, V. Lindholm, M. López-Caniego, P.M. Lubin, Y.Z. Ma, J.F. Macías-Pérez, G. Maggio, D. Maino, N. Mandolesi, A. Mangilli, A. Marcos-Caballero, M. Maris, P.G. Martin, M. Martinelli, E. Martínez-González, S. Matarrese, N. Mauri, J.D. McEwen, P.R. Meinhold, A. Melchiorri, A. Mennella, M. Migliaccio, M. Millea, S. Mitra, M.A. Miville-Deschênes, D. Molinari, L. Montier, G. Morgante, A. Moss, P. Natoli, H.U. Nørgaard-Nielsen, L. Pagano, D. Paoletti, B. Partridge, G. Patanchon, H.V. Peiris, F. Perrotta, V. Pettorino, F. Piacentini, L. Polastri, G. Polenta, J.L. Puget, J.P. Rachen, M. Reinecke, M. Remazeilles, A. Renzi, G. Rocha, C. Rosset, G. Roudier, J.A. Rubiño-Martín, B. Ruiz-Granados, L. Salvati, M. Sandri, M. Savelainen, D. Scott, E.P.S. Shellard, C. Sirignano, G. Sirri, L.D. Spencer, R. Sunyaev, A.S. Suur-Uski, J.A. Tauber, D. Tavagnacco, M. Tenti, L. Toffolatti, M. Tomasi, T. Trombetti, L. Valenziano, J. Valiviita, B. Van Tent, L. Vibert, P. Vielva, F. Villa, N. Vittorio, B.D. Wandelt, I.K. Wehus, M. White, S.D.M. White, A. Zacchei, A. Zonca, Planck 2018 results. VI. Cosmological parameters. Astron. Astrophys. 641, A6 (2020)

    Google Scholar 

  • Planck Collaboration XIII, Planck 2015 results-xiii. cosmological parameters. Astron. Astrophys. 594, A13 (2016)

    Google Scholar 

  • P. Predehl, R. Andritschke, V. Arefiev, V. Babyshkin, O. Batanov, W. Becker, H. Böhringer, A. Bogomolov, T. Boller, K. Borm, W. Bornemann, H. Bräuninger, M. Brüggen, H. Brunner, M. Brusa, E. Bulbul, M. Buntov, V. Burwitz, W. Burkert, N. Clerc, E. Churazov, D. Coutinho, T. Dauser, K. Dennerl, V. Doroshenko, J. Eder, V. Emberger, T. Eraerds, A. Finoguenov, M. Freyberg, P. Friedrich, S. Friedrich, M. Fürmetz, A. Georgakakis, M. Gilfanov, S. Granato, C. Grossberger, A. Gueguen, P. Gureev, F. Haberl, O. Hälker, G. Hartner, G. Hasinger, H. Huber, L. Ji, A.v. Kienlin, W. Kink, F. Korotkov, I. Kreykenbohm, G. Lamer, I. Lomakin, I. Lapshov, T. Liu, C. Maitra, N. Meidinger, B. Menz, A. Merloni, T. Mernik, B. Mican, J. Mohr, S. Müller, K. Nandra, V. Nazarov, F. Pacaud, M. Pavlinsky, E. Perinati, E. Pfeffermann, D. Pietschner, M.E. Ramos-Ceja, A. Rau, J. Reiffers, T.H. Reiprich, J. Robrade, M. Salvato, J. Sanders, A. Santangelo, M. Sasaki, H. Scheuerle, C. Schmid, J. Schmitt, A. Schwope, A. Shirshakov, M. Steinmetz, I. Stewart, L. Strüder, R. Sunyaev, C. Tenzer, L. Tiedemann, J. Trümper, V. Voron, P. Weber, J. Wilms, V. Yaroshenko, The eROSITA X-ray telescope on SRG. Astron. Astrophys. 647, A1 (2021)

    Google Scholar 

  • E. Rasia, G. Tormen, L. Moscardini, A dynamical model for the distribution of dark matter and gas in galaxy clusters. MNRAS 351, 237–252 (2004)

    ADS  Google Scholar 

  • E. Rasia, S. Ettori, L. Moscardini, P. Mazzotta, S. Borgani, K. Dolag, G. Tormen, L.M. Cheng, A. Diaferio, Systematics in the X-ray cluster mass estimators. MNRAS 369, 2013–2024 (2006)

    ADS  Google Scholar 

  • T.H. Reiprich, A. Veronica, F. Pacaud, M.E. Ramos-Ceja, N. Ota, J. Sanders, M. Kara, T. Erben, M. Klein, J. Erler, J. Kerp, D.N. Hoang, M. Brüggen, J. Marvil, L. Rudnick, V. Biffi, K. Dolag, J. Aschersleben, K. Basu, H. Brunner, E. Bulbul, K. Dennerl, D. Eckert, M. Freyberg, E. Gatuzz, V. Ghirardini, F. Käfer, A. Merloni, K. Migkas, K. Nandra, P. Predehl, J. Robrade, M. Salvato, B. Whelan, A. Diaz-Ocampo, D. Hernandez-Lang, A. Zenteno, M.J.I. Brown, J.D. Collier, J.M. Diego, A.M. Hopkins, A. Kapinska, B. Koribalski, T. Mroczkowski, R.P. Norris, A. O’Brien, E. Vardoulaki, The Abell 3391/95 galaxy cluster system. A 15 Mpc intergalactic medium emission filament, a warm gas bridge, infalling matter clumps, and (re-) accelerated plasma discovered by combining SRG/eROSITA data with ASKAP/EMU and DECam data. Astron. Astrophys. 647, A2 (2021)

    Google Scholar 

  • E. Roediger, M. Brüggen, A. Simionescu, H. Böhringer, E. Churazov, W.R. Forman, Gas sloshing, cold front formation and metal redistribution: the Virgo cluster as a quantitative test case. MNRAS 413, 2057–2077 (2011)

    ADS  Google Scholar 

  • M. Roncarelli, S. Ettori, S. Borgani, K. Dolag, D. Fabjan, L. Moscardini, Large-scale inhomogeneities of the intracluster medium: improving mass estimates using the observed azimuthal scatter. MNRAS 432, 3030–3046 (2013)

    ADS  Google Scholar 

  • M. Rossetti, D. Eckert, S. De Grandi, F. Gastaldello, S. Ghizzardi, E. Roediger, S. Molendi, Abell 2142 at large scales: an extreme case for sloshing?. Astron. Astrophys. 556, A44 (2013)

    Google Scholar 

  • D.H. Rudd, D. Nagai, Non-equilibrium electrons and the Sunyaev-Zel’dovich effect of galaxy clusters. accepted to the ApJL (2009)

    Google Scholar 

  • I. Sakelliou, T.J. Ponman, XMM-Newton observations of the binary cluster system Abell 399/401. MNRAS 351, 1439–1456 (2004)

    ADS  Google Scholar 

  • K. Sato, R.L. Kelley, Y. Takei, T. Tamura, N.Y. Yamasaki, T. Ohashi, A. Gupta, M. Galeazzi, Study of the intracluster and intergalactic medium in the sculptor supercluster with Suzaku. PASJ 62, 1423 (2010)

    ADS  Google Scholar 

  • X. Shi, E. Komatsu, Analytical model for non-thermal pressure in galaxy clusters. MNRAS 442, 521–532 (2014)

    ADS  Google Scholar 

  • A. Simionescu, S.W. Allen, A. Mantz, N. Werner, Y. Takei, R.G. Morris, A.C. Fabian, J.S. Sanders, P.E.J. Nulsen, M.R. George, G.B. Taylor, Baryons at the edge of the X-ray-brightest galaxy cluster. Science 331, 1576 (2011)

    ADS  Google Scholar 

  • A. Simionescu, N. Werner, O. Urban, S.W. Allen, A.C. Fabian, J.S. Sanders, A. Mantz, P.E.J. Nulsen, Y. Takei, Large-scale motions in the perseus galaxy cluster. APJ 757, 182 (2012)

    ADS  Google Scholar 

  • A. Simionescu, N. Werner, O. Urban, S.W. Allen, Y. Ichinohe, I. Zhuravleva, A uniform contribution of core-collapse and type Ia Supernovae to the chemical enrichment pattern in the outskirts of the virgo cluster. APJ 811, L25 (2015)

    ADS  Google Scholar 

  • A. Simionescu, N. Werner, A. Mantz, S.W. Allen, O. Urban, Witnessing the growth of the nearest galaxy cluster: thermodynamics of the Virgo Cluster outskirts. MNRAS 469, 1476–1495 (2017)

    ADS  Google Scholar 

  • M. Sinha, K. Holley-Bockelmann, Balancing the baryon budget: the fraction of the IGM due to galaxy mergers. MNRAS 405, L31–L35 (2010)

    ADS  Google Scholar 

  • L. Spitzer, Physics of Fully Ionized Gases, 2nd edn. (Interscience, New York, 1962)

    Google Scholar 

  • A. Stroe, J.J. Harwood, M.J. Hardcastle, H.J.A. Röttgering, Spectral age modelling of the ‘Sausage’ cluster radio relic. MNRAS 445, 1213–1222 (2014)

    ADS  Google Scholar 

  • D. Suto, H. Kawahara, T. Kitayama, S. Sasaki, Y. Suto, R. Cen, Validity of hydrostatic equilibrium in galaxy clusters from cosmological hydrodynamical simulations. APJ 767, 79 (2013)

    ADS  Google Scholar 

  • O. Urban, A. Simionescu, N. Werner, S.W. Allen, S. Ehlert, I. Zhuravleva, R.G. Morris, A.C. Fabian, A. Mantz, P.E.J. Nulsen, J.S. Sanders, Y. Takei, Azimuthally resolved X-ray spectroscopy to the edge of the Perseus Cluster. MNRAS 437, 3939–3961 (2014)

    ADS  Google Scholar 

  • O. Urban, N. Werner, S.W. Allen, A. Simionescu, A. Mantz, A uniform metallicity in the outskirts of massive, nearby galaxy clusters. MNRAS 470, 4583–4599 (2017)

    ADS  Google Scholar 

  • R.J. van Weeren, H.J.A. Röttgering, M. Brüggen, M. Hoeft, Particle acceleration on Megaparsec scales in a merging galaxy cluster. Science 330, 347 (2010)

    ADS  Google Scholar 

  • R.J. van Weeren, F. de Gasperin, H. Akamatsu, M. Brüggen, L. Feretti, H. Kang, A. Stroe, F. Zandanel, Diffuse radio emission from galaxy clusters. Space Sci. Rev. 215, 16 (2019)

    ADS  Google Scholar 

  • F. Vazza, G. Brunetti, A. Kritsuk, R. Wagner, C. Gheller, M. Norman, Turbulent motions and shocks waves in galaxy clusters simulated with adaptive mesh refinement. Astron. Astrophys. 504, 33–43 (2009)

    ADS  Google Scholar 

  • F. Vazza, D. Eckert, A. Simionescu, M. Brüggen, S. Ettori, Properties of gas clumps and gas clumping factor in the intra-cluster medium. MNRAS 429, 799–814 (2013)

    ADS  Google Scholar 

  • A. Vikhlinin, M. Markevitch, S.S. Murray, C. Jones, W. Forman, L. Van Speybroeck, Chandra temperature profiles for a sample of nearby relaxed galaxy clusters. APJ 628, 655–672 (2005)

    ADS  Google Scholar 

  • A. Vikhlinin, A. Kravtsov, W. Forman, C. Jones, M. Markevitch, S.S. Murray, L. Van Speybroeck, Chandra sample of nearby relaxed galaxy clusters: mass, gas fraction, and mass-temperature relation. APJ 640, 691–709 (2006)

    ADS  Google Scholar 

  • G.M. Voit, Tracing cosmic evolution with clusters of galaxies. Rev. Mod. Phys. 77, 207 (2005)

    ADS  Google Scholar 

  • G.M. Voit, S.T. Kay, G.L. Bryan, The baseline intracluster entropy profile from gravitational structure formation. MNRAS 364, 909–916 (2005)

    ADS  Google Scholar 

  • S.A. Walker, A.C. Fabian, J.S. Sanders, M.R. George, Further X-ray observations of the galaxy cluster PKS 0745-191 to the virial radius and beyond. MNRAS 424, 1826–1840 (2012)

    Google Scholar 

  • S.A. Walker, A.C. Fabian, J.S. Sanders, A. Simionescu, Y. Tawara, X-ray exploration of the outskirts of the nearby Centaurus cluster using Suzaku and Chandra. MNRAS 432, 554–569 (2013)

    ADS  Google Scholar 

  • S.A. Walker, A.C. Fabian, J.S. Sanders, Large-scale gas sloshing out to half the virial radius in the strongest cool core REXCESS galaxy cluster, RXJ2014.8-2430. MNRAS 441, L31–L35 (2014)

    Google Scholar 

  • S.A. Walker, J. Hlavacek-Larrondo, M. Gendron-Marsolais, A.C. Fabian, H. Intema, J.S. Sanders, J.T. Bamford, R. van Weeren, Is there a giant Kelvin-Helmholtz instability in the sloshing cold front of the Perseus cluster?. MNRAS 468, 2506–2516 (2017)

    ADS  Google Scholar 

  • S.A. Walker, J. ZuHone, A. Fabian, J. Sanders, The split in the ancient cold front in the Perseus cluster. Nat. Astron. 2, 292–296 (2018)

    ADS  Google Scholar 

  • S. Walker, D. Nagai, A. Simionescu, M. Markevitch, H. Akamatsu, M. Arnaud, C. Avestruz, M. Bautz, V. Biffi, S. Borgani, E. Bulbul, E. Churazov, K. Dolag, D. Eckert, S. Ettori, Y. Fujita, M. Gaspari, V. Ghirardini, R. Kraft, E.T. Lau, A. Mantz, K. Matsushita, M. McDonald, E. Miller, T. Mroczkowski, P. Nulsen, N. Okabe, N. Ota, E. Pointecouteau, G. Pratt, K. Sato, X. Shi, G. Tremblay, M. Tremmel, F. Vazza, I. Zhuravleva, E. Zinger, J. ZuHone, Unveiling the galaxy cluster – cosmic web connection with X-ray observations in the next decade. Bull. Am. Astron. Soc. 51, 218 (2019a)

    Google Scholar 

  • S. Walker, A. Simionescu, D. Nagai, N. Okabe, D. Eckert, T. Mroczkowski, H. Akamatsu, S. Ettori, V. Ghirardini, The physics of galaxy cluster outskirts. Space Sci. Rev. 215, 7 (2019b)

    ADS  Google Scholar 

  • N. Werner, A. Finoguenov, J.S. Kaastra, A. Simionescu, J.P. Dietrich, J. Vink, H. Böhringer, Detection of hot gas in the filament connecting the clusters of galaxies Abell 222 and Abell 223. Astron. Astrophys. 482, L29–L33 (2008)

    ADS  Google Scholar 

  • N. Werner, O. Urban, A. Simionescu, S.W. Allen, A uniform metal distribution in the intergalactic medium of the Perseus cluster of galaxies. Nature 502, 656–658 (2013)

    ADS  Google Scholar 

  • K.-W. Wong, C.L. Sarazin, Effects of the non-equipartition of electrons and ions in the outskirts of relaxed galaxy clusters. APJ 707, 1141–1159 (2009)

    ADS  Google Scholar 

  • L. Zappacosta, F. Nicastro, R. Maiolino, G. Tagliaferri, D.A. Buote, T. Fang, P.J. Humphrey, F. Gastaldello, Studying the WHIM content of large-scale structures along the line of sight to H 2356-309. APJ 717, 74–84 (2010)

    Google Scholar 

  • I. Zhuravleva, E. Churazov, A. Kravtsov, E.T. Lau, D. Nagai, R. Sunyaev, Quantifying properties of ICM inhomogeneities. MNRAS 428, 3274–3287 (2013)

    ADS  Google Scholar 

  • J.A. ZuHone, M. Markevitch, D. Lee, Sloshing of the magnetized cool gas in the cores of galaxy clusters. APJ 743, 16 (2011)

    ADS  Google Scholar 

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Authors and Affiliations

  1. Department of Physics and Astronomy, The University of Alabama in Huntsville, Huntsville, AL, USA

    Stephen Walker

  2. Smithsonian Astrophysical Observatory, Cambridge, MA, USA

    Erwin Lau

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  1. Stephen Walker
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  2. Erwin Lau
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Correspondence to Stephen Walker .

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  1. Department of Physics, Fudan University, Shanghai, China

    Cosimo Bambi

  2. Institute for Astronomy and Astrophysics, University of Tuebingen, Tuebingen, Baden-Württemberg, Germany

    Andrea Santangelo

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Walker, S., Lau, E. (2024). Cluster Outskirts and Their Connection to the Cosmic Web. In: Bambi, C., Santangelo, A. (eds) Handbook of X-ray and Gamma-ray Astrophysics. Springer, Singapore. https://doi.org/10.1007/978-981-19-6960-7_120

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