next science of the galactic diffuse & snr what i am learning from suzaku
DESCRIPTION
NeXT Science of the Galactic Diffuse & SNR What I am learning from Suzaku Hard Tail ( > 6 keV) : Galactic Center (GC), Arches XRNs Galactic Ridge (GR), SN1006, RXJ 1713, Vera-Jr. RXJ Sgr A East, Cas A, Tycho Fe 6.4 keV line GC, GR, XRNs, RCW86 - PowerPoint PPT PresentationTRANSCRIPT
NeXT Science of the Galactic Diffuse & SNR What I am learning from SuzakuHard Tail ( > 6 keV) : Galactic Center (GC), Arches XRNs Galactic Ridge (GR), SN1006, RXJ 1713, Vera-Jr. RXJ Sgr A East, Cas A, Tycho Fe 6.4 keV line GC, GR, XRNs, RCW86
He-like(6.7 keV) , H-like(6.9 keV) lines: Oeigin
Hard Tail(1) Synchrotron X-rays: Very High energy electron (Cosmic Rays)
(2) Bremsstrahlung of Supra thermal electrons (<100 keV) 6.4 keV line(3) XRN
Lyman Series limit
Non Thermal X-ray filaments
1
2
3
Collisonal Ionization Z-4.3 EW of Fe~ 0.3 KeV O,Ne, Si, S, Fe : 360, 110, 70, 40, 290 eV 1.2: 0.38: 0.24: 0.14: 1 0.11: 0.06: 0.05: 0.04: 1Cross Section of photo ionization Z-2.3 EW of Fe~1 keV
(Tatischeff et al.2002)
6.4 keV
(2)
SN 1006: Hard Tail vs Thermal Plasma
He-O line vs. Hard X-ray emission
Northern rim
Eastern rim
Inner region
Beautiful correlation !
He-like Fe K = 6680 eV Close to 6679--6685eVWidth () = 38 eV (Triplet, not Velocity) Collisional Excitation
Name Observed Lab ⊿ (eV)-----------------------------S Ly 2622.4+3.6-2.7 2621.6 0.8FeLy 6969.5+2.8-2.1 6965.7 3.8Mn K 5899.6+1.7-0.4 5895.1 4.5
Collisional Excitation= 6685 eVElectron Capture = 6666eV
r
rf
f
6679-6685eV
6666eV
FeXXV FeXXIV
i
i
G-ratio = r / (i+f)
Wargelin, Beiersdorfer et al. 2005, ApJ, 634,687