High Metallicity of the X-Ray Gas Up to the Virial Radius of a Binary Cluster of Galaxies: Evidence of Galactic Superwinds at High-Redshift

Fujita Yutaka; Tawa Noriaki; Hayashida Kiyoshi; Takizawa Motokazu; Matsumoto Hironori; Okabe Nobuhiro; Reiprich Thomas. H.

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High Metallicity of the X-Ray Gas Up to the Virial Radius of a Binary Cluster of Galaxies: Evidence of Galactic Superwinds at High-Redshift

机译：X射线气体的高金属性，直至星系的二元星团的弧半径：高红移时银河超风的证据

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WepresentananalysisofaSuzakuobservationofthelinkregionbetweenthegalaxyclustersA399andA401.Weobtainedthemetallicityoftheintraclustermedium(ICM)uptotheclustervirialradiiforthefirsttime.Wedeterminedthemetallicitywherethevirialradiiofthetwoclusterscrosseachother($$sim2$$Mpcawayfromtheircenters)andfoundthatitiscomparabletothatintheirinnerregions($$sim0.2:Z_odot$$).Itisunlikelythattheuniformityofmetallicityuptothevirialradiiisduetomixingcausedbyaclustercollision.Sincetheram-pressureistoosmalltostriptheinterstellarmediumofgalaxiesaroundthevirialradiusofacluster,thefairlyhighmetallicitythatwefoundthereindicatesthatthemetalsintheICMarenottransportedfrommembergalaxiesbyram-pressurestripping.Instead,theuniformitysuggeststhattheproto-clusterregionwasextensivelypollutedwithmetalsbyextremelypowerfuloutflows(superwinds)fromgalaxiesbeforetheclustersformed.Wealsosearchedfortheoxygenemissionfromthewarm-hotintergalacticmediuminthatregionandobtainedastrictupperlimitofthehydrogendensity($$n_{ mH}4.1 imes10^{-5}$$cm$$^{-3}$$).

机译：WepresentananalysisofaSuzakuobservationofthelinkregionbetweenthegalaxyclustersA399andA401.Weobtainedthemetallicityoftheintraclustermedium（ICM）uptotheclustervirialradiiforthefirsttime.Wedeterminedthemetallicitywherethevirialradiiofthetwoclusterscrosseachother（$$ SIM2 $$ Mpcawayfromtheircenters）andfoundthatitiscomparabletothatintheirinnerregions（$$ sim0.2：Z_odot $$）。Itisunlikelythattheuniformityofmetallicityuptothevirialradiiisduetomixingcausedbyaclustercollision.Sincetheram pressureistoosmalltostriptheinterstellarmediumofgalaxiesaroundthevirialradiusofacluster，thefairlyhighmetallicitythatwefoundthereindicatesthatthemetalsintheICMarenottransportedfrommembergalaxiesbyram pressurestripping.Instead，theuniformitysuggeststhattheproto clusterregionwasextensivelypollutedwithmetalsbyextremelypowerfuloutflows（superwinds）fromgalaxiesbeforetheclustersformed。我们还研究了该区域内热-银河系中间介质的含氧量排放，并获得了氢密度的上限（$$ n_ H mH} 4.1 ime s10 ^ {-5} $$ cm $$ ^ {-3} $$）。

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《PASJ: Publications of the Astronomical Society of Japan》 |2008年第sp1期|共页
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Fujita Yutaka; Tawa Noriaki; Hayashida Kiyoshi; Takizawa Motokazu; Matsumoto Hironori; Okabe Nobuhiro; Reiprich Thomas. H.;
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1. High Metallicity of the X-Ray Gas Up to the Virial Radius ofa Binary Cluster of Galaxies:Evidence of Galactic Superwinds at High-Redshift [J] . Yutaka FUJITA, Noriaki TAWA, Kiyoshi HAYASHIDA, PASJ: Publications of the Astronomical Society of Japan . 2008,第Suppla1a期

机译：X射线气体的高金属性，直至星系的二元星团的病毒半径：高红移的银河超风的证据
2. High metallicity of the X-ray gas up to the virial radius of a binary cluster of galaxies: Evidence of galactic superwinds at high-redshift [J] . Fujita Y, Tawa N, Hayashida K, PASJ: Publications of the Astronomical Society of Japan . 2008,第Suppla1期

机译：X射线气体的高金属性直至星系的二元星团的病毒半径：高红移时银河超风的证据
3. “Direct” Gas-phase Metallicity in Local Analogs of High-redshift Galaxies: Empirical Metallicity Calibrations for High-redshift Star-forming Galaxies [J] . Fuyan Bian, Lisa J. Kewley, Michael A. Dopita The Astrophysical journal . 2018,第2期

机译：高红移星系本地模拟中的“直接”气相金属性：高红移星系星系的经验金属性标定
4. Measuring the mass profile of galaxy clusters beyond their virial radius [C] . A. Diaferio International School of Physics "Enrico Fermi" . 2011

机译：测量除了毒性半径之外的星系集群的质量剖面
5. Probing for Extended Gamma-Ray Emission Within and Beyond the Virial Radius from the Coma Galaxy Cluster [D] . Stevenson, Thomas Brandon. 2020

机译：探讨昏迷群体内和超出了昏迷中的伽马射线排放
6. Globular clusters in high-redshift dwarf galaxies: a case study from the Local Group [O] . Tom O. Zick, Daniel R. Weisz, Michael Boylan-Kolchin -1

机译：高红移矮星系中的球状星团：来自本地群的案例研究
7. High Metallicity of the X-Ray Gas up to the Virial Radius of a Binary Cluster of Galaxies: Evidence of Galactic Superwinds at High-Redshift [O] . Fujita, Yutaka, Tawa, Noriaki, Hayashida, Kiyoshi, 2008

机译：X射线气体的高金属性直至二元的维里半径星系团：高红移的银河超级风的证据

High Metallicity of the X-Ray Gas Up to the Virial Radius of a Binary Cluster of Galaxies: Evidence of Galactic Superwinds at High-Redshift

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