Astro-E2 target: The Galactic Center

Red: 1-3 keV Green: 3-5 keV Blue: 5-8 keV

Sgr B2

Wang et al. 2002

Yoshitomo MaedaHiroshi Murakami2 degree

The Arches Cl.? Sgr A

The Great Annihilator

G 0.9+0.1

Radio Arc

1E1743.1-2843

Sgr C

Pointing 1: Sgr A

SMBH Sgr A* Persistent 1033 ergs s-1

Too faintFlare Max 1035-36 ergs s-1

Can detect

Sgr A East: MM SNR (W49B Type?)A SNR at 20” offset from A*Strong Fe- K (EW~3keV)

Line dynamics & plasma diagnostics with XRS

XRS

(Plasma motion, & age ？ )

Thermal1kT (CIE)!!

S ArCa Fe

Sgr A East (100 ksec)

0.85 c/s/XRS

XRS Simulation (100 ksec)Sgr A East (100 ksec)

( line center ±0.3 eV 、 line width ±0.2 eV)

0.19 c/s/XRS

He-like Resonance: 0.19 c/s/XRS

Galactic Rotation

Sgr A East

Pointing 2: Sgr B2

Sgr B2 Ｘ線反射星雲外部のＸ線源に照らされて蛍光で輝いている 中心核の過去の活動性？

Cloud velocity, Compton scattered line 照射源特定

Murakami, Koyama & Maeda (2001)

6-7 keV

６ｘ６（ normal ）

Sgr B2 (100 ksec)

0.20 c/s/XRS

Compton recoil

line center ±0.3 eVline width ±0.4 eV

Neutral iron line: 7x10-3 c/s/XRS

Compton ±10 eV

Pointing 3: Radio Arc

Radio Arc SNR? Shock? XRN?色々な放射が混在

⇒ non-thermal

⇒ 中性鉄輝線

⇒ Thermal + 中性鉄輝線

Radio Arc (100 ksec) Thermal1.3x10-2 c/s

Neutral iron line3.7x10-3 c/s

center ±0.3 eVwidth ±0.5 eV

center ±1.2 eVwidth ±1.5 eV

He-like resonance6.5x10-4 c/s

Radio

Mid-infrared

6.4 keV line (fluorescent radiation)

Galactic Center Across the Spectrum

６ｘ６（ normal ）

Pointing 4: Sgr C

XRN? + radio filamentfilament shock 加速？XRN Sgr B2 と対照的な位置で中心核起源かどうか探るのに重要

Plasma plasma motion 　 negative longitude も見るのが

重要

電波の filament の絵