Target selection The GC hot plasma Sgr A East Sgr B2 / Radio arc

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Presentation transcript:

Target selection The GC hot plasma Sgr A East Sgr B2 / Radio arc plasma dynamics, galactic rotation Sgr A East SNR dynamics, galactic rotation Sgr B2 / Radio arc X-ray reflection nebula, Compton shoulder / recoil

　　　　　　　　σ　 Thermal motion ⇒ Vth～1700 km/s @10keV ⇒　σ～ 4 eV Turbulent Motion of the cloud　~70km/s ⇒　σ～ 1.5 eV 　　　　　　　ΔE 　Expanding　Velocity of Hot Plasma 　Galactic rotation curve ⇒　Vrot　～　20 km/s @10 pc ⇒　ΔE ～ 0.4 eV

GC hot plasma Neutral Iron (6.4 keV) Trace the dynamics of the Cold Molecular cloud Galactic Rotation He/H-like Fe-K (6.7 / 6.9 keV) Trace the dynamics of the hot plasma ⇒ Dynamics of the hot plasma Galactic Rotation or Thermal motion ? Sgr A East Sgr A* GC hot Plasma Rotation curve near the GC region

Hot Plasma 100 ks 6.4 keV Lya 6.4 keV ±0.5 eV ±0.3 eV 6.7 keV ±0.5 eV Galactic rotation & Thermal Motion are detectable. 6.7 / 6.9 keV Line Ionization Temp. 6.7 keV / satellites Electron Temp. 6.7 & 6.7 width Ion Temp 6.4 keV Lya

Sgr A East resonance inter-combinations Line center error ±0.3 eV forbidden Line width error ±0.4 eV Li/Be-like satellites 20 km/s galactic rotation: detectable He-like Complex: 0.19 c/s/XRS He-like Resonance: 0.05 c/s/XRS He-like Resonance: 0.19 c/s/XRS

Sgr B2 / Radio Arc X-ray reflection nebulae (XRN) Compton shoulder of 6.4 keV line ⇒ Geometry of the Irradiation source　& Cloud Compton recoil of 6.7 keV irradiation 　⇒ 3D configuration of Molecular cloud and Irradiating Source (Sgr A East). 3’ x1038 (year) Past luminosities of Sgr A*

Sgr B2 (100 ksec) Neutral iron line: 7x10-3 c/s/XRS line center 6.38 ±0.3 eV line width 1.7 ±0.4 eV (70km/s) Compton 6.37±10 eV Irradiation direction 10 %

Radio Arc (100 ksec) Neutral iron line 3.7x10-3 c/s He-like resonance Compton Recoil ? center ±0.3 eV width ±0.5 eV center ±1.2 eV width ±1.5 eV