Chapter 8 Radiation Hydrodynamicsips.sjtu.edu.cn/upload/Takabe_PPT_2009/RadHydro.pdf · E Q F Q SK...
Transcript of Chapter 8 Radiation Hydrodynamicsips.sjtu.edu.cn/upload/Takabe_PPT_2009/RadHydro.pdf · E Q F Q SK...
Chapter 8
Radiation Hydrodynamics
1
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8.1 Radiation Transport
/S
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Integrated form
(2) Spherical Geometry
(1) Plane geometry
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rb 22
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22
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112
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, Te
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Sr d d
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Emissivity and Opacity
Coupling term with electron fluid
4
EFE ct
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4
1d
cIE
4dIF
FPF
tc2
1
dc
IP :
1
Angular moment equation
Radiation energy density
Radiation heat flux
Radiation pressure
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4
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Radiation pressure tensor (1)
PE
PE
P
P
P
300
030
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00
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P
1
1
2
2
1 dEP
EFE cxt
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FPF
cxtc
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7
Radiation pressure tensor (2)
Equation to Radiation Energy Density (Plane Geometry)
EFE cr
rrt
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1 2
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EPPF
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312
EP f
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8
Equation to Radiation Energy Density (Plane Geometry)
EEFE
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FFP
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)()(
c
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d
c
EEFE
currrdt
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1)( 2
2
F
EPFP
F
rc
c
ur
rrc
rdt
d
c
3)(
1)()( 2
2
9
Equation of Radiation in Fluid Frame
Plane Geometry
Spherical Geometry
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u
xt
r
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2([)
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RR
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([)2
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xu
tF
PE
10
8.2 Radiation Hydrodynamics
Total Energy and Momentum Conservation Relations
0
1 d
c
r
m FS
0
)4( dcr
e ES
)1
(~~22 c
uo
uu
RR
PE)(~
2
2
2 c
uo
uc
R
F
cos)(1 x
EF3
c
EP
3
1
EF
x
c
3
11
The coupling term with matter
EEE cxx
cl
xt
4)
3(
1l
1
183
3
kThec
h
B
4
0
4)( TBEE
c
R
P
R
12
Multi-group Diffusion Approximation
R
PP
RR
PRR
P cx
cl
xtEEE
4
3
duul
dT
dT
l
l RR )(0
0
0
G
B
B
duud
d
PP )(0
0
0
GB
B
2
4
4 )1(4
15u
u
Re
eu
G
1
15 3
4
uPe
u
G
13
Near LTE Approximation (Gray Approximation)
Rosseland mean-free-path
Planck opacity
R
PRR
x
clEF
3
1j
j
id
EEGG NiNj 1,0
iiii
i
i cx
cl
tt
EEE
4)
3(
1
1
j
j
j
ji
dT
dT
l
l
B
B
1
1
j
j
j
ji
d
d
B
B
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Multi-group gray diffusion approximation
i
i
i
x
cl
EF
3ii cfs
EF
gni
i
i
i c SER
RF
1
i
i
ii
xl
E
ER
1
3
1
coscoth
1)(
RRR
15
Eddington coefficient (How to model angular distribution)
E
x
cR
4 RcERF )(
)1
(coth1
)(R
RR
R
2
11
2
11
02625.05953.01
2694.001932.0
3
1
RR
RRf
2
112
3
2
1
3
1
RR
f
13
1
3
10
1
1
R
R
16
Variable Edington Factor
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8.3 Computer Simulation of Gold Foil
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Spectrum from Gold Foil irradiated by Lasers
(Experiment VS Simulation)
19
X-ray Conversion Rate ( Experiment VS Simulation)
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CRE model is essential for Gold Plasma
CRE: Collisional Radiative Equilibrium
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X-ray confinement with a variety of gold cavities
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Radiation Temperature from Gold Cavity
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8.4 Radiation Hydrodynamics in the Universe
Planetary Nebulae (HST)
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25
Radiation Hydrodynamics Model of Planetary Nebulae
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Eagle Nebula
by HST
27
28
29
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Super-Massive
BH of C of G
(Image by HST)
400 ly
88,000 ly
Photo-ionization by X-rays
from BH
Accretion Disk and Black Hole
31
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多くの銀河の中心には、質量が太陽の一千万倍を超える巨大ブラックホールがあると考えられていますが、確実な証拠はこれまでつかむことができませんでした。このたびVLBI観測によって中心天体のまわりの小さな領域で高速に回転するガスや星のすがたがとらえられました。この回転が太陽系の惑星のようなケプラー運動なら、中心天体の質量は簡単に算出できます。NGC4258(M106) という銀河系の中心近くのガス回転運動の様子をVLBI観測等によって調べたところ、半径0.13 パーセクより小さい領域に太陽の3600万倍の質量が存在することがわかりました。平均密度はこれまでブラックホールの候補と考えられてきた天体の40倍と大きく、NGC4258の中心にブラックホールが存在する有力な証拠と考えられています。
<三好 真>
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Figure 1: NRAO Very Large Array image of the radio galaxy 3C 403 at a wavelength of 3.6 cm. The intensity range of the colors (in Jansky, Jy, units) is indicated at the right hand side. The red arrow points at the galaxy's nucleus. The spectrum shown in the upper left hand inset was taken with the Effelsberg 100m telescope. The y-axis is flux density in Jy, while the x-axis gives the recession velocity (in km/s), i.e. the speed which with 3C 403 and the Milky Way are moving apart. The green arrow points at the systemic radial velocity of the whole galaxy. Image: National Radio Astronomy Observatory/Rick Perley (NRAO/AUI/NSF)
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Eta-Carina
35
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Photo-ionized plasma in binary system
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Ionization Parameter x
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8.5 Photo-ionized Plasma Experiment
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42
43
Experimental setup
• Everything shown is completely destroyed during the experiment!
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Spectral characterization
• 300 11.5 m tungsten wires
• 20 MA current
• 100 ns rise time
• 8 ns FWHM peak
• 120 TW peak power
• x 25 erg cm/s at the peak
• 165 eV near-BB radiation
• Synchrotron high energy tail
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46
47
Cloudy models
48
Super-Massive
BH of C of G
(Image by HST)
400 ly
88,000 ly
Photo-ionization by X-rays
from BH
8.6 Photo-ionization in X-ray Binary System
At Institute of Physics, Beijing, China, Summer 2006
Japan-China Joint Research funded by JSPS and NSFC (2005-2007) still on going.
PI(project): H. Takabe (Japan) and J. Zhang(China)PI(experiment): H. Nishimura (Japan) and Y. Li (China)Staff: S. Fujioka, N. Yamamoto, W. Feilu, D. Salzman etc.
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Two Type of Experiments have been done with GXII and Shengang II
1. H. G. Wei et al., Opacity studies of silicon in radiatively
heated plasma
Astrophysical J. Lett. 683, Page 577–583, (2008)
2. Fei-lu Wang et al., Experimental evidence and
theoretical analysis of photo-ionized plasma under x-ray
radiation produced by intense laser
Phys. Plasmas 15, 073108 (2008)
Japan-China Joint Research by JSPS and NSFC (2005-2007)
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We are carrying out the second step.
Radiation Temperature Tr = 0.5 keV
Final Purpose is the Prediction of Candidate of X-ray Laser Object near
Compact Object in Universe.
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H. Takabe1, S. Fujioka1, N. Yamamoto1, F. L. Wang2, D.
Saltzmann3, Y. T. Li4, Q.L. Dong4, S.J. Wang4, Y. Zhang4, Yong-
Woo Lee5, Yong-Joo Rhee5, Jae Min Han5, M. Tanabe1, T.
Fujiwara1, Y. Nakabayashi1, J. Zhang4, H. Nishimura1,
1Institute of Laser Engineering, Osaka University, 2-6 Yamada-
oka, Suita, Osaka, 565-0871,Japan.2National Astronomical Observatories, Chinese Academy of
Sciences, Beijing 100012, China.3Department of Plasma Physics, Soreq Nuclear Research Center,
Yavne, Israel.4Beijing National Laboratory for Condensed Matter Physics,
Institute of Physics, Chinese Academy of Sciences, Beijing
100080, China.5Quantum Optics Center, Korea Atomic Energy Research Institute,
1045 Daedeok Street Yuseonggu, Daejon 305-353, Korea.52
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Photo-ionization of X-ray Binary System (VELA X-1)
S. Watanabe et al., ApJ 651; 421, 200654
He-like Silicon Line Emissions from VELA X-1
N. R. Schultz et al., ApJ 564; L21, 200255
X-ray from Companion Compact Star (Image)
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X-ray from Companion Star of Cyg X-3
57F. Paerels, et al., Astrophys. J. 533, L135 (2000).
Photo-ionization by X-rays from
BH candidate (Chandra)
Experiment has been done
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Spectrum from Imploded CH Core Plasma
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Experimental Data
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Experimental Spectrum
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1S
1S3S
3P1P
wz
1/43/4
Courtesy by Prof. Kuni Masai
Az=10-6Aw
Case (1) in AstrophysicsEn
erg
y
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1S
1S3S
3P
wz
1/43/4
Courtesy by Prof. Kuni Masai
Case (2) in Astrophysics
1P
Ene
rgy
64
K
Satellite Lines from Be-like Si
Ene
rgy
L
Photon from Radiation Source
Photo-ionized electron
Satellite Line
65
Details of Theoretical Spectrum
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Chandra X-ray Data from VELA X-1
N. R. Schultz et al., ApJ 564; L21, 2002
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0.012
0.008
0.004
0.000
Inte
nsit
y (
a.u
.)
1.881.861.841.821.80
Photon energy (keV)4.00
2.00
0.00Co
un
t/s/k
eV
1.881.861.841.821.80
Energy (keV)
実験室
ブラックホール
67
Black HoleUniverse
Experiment
Joint Exp. Japan-
China-Korea
This is accepted for publication in the Nature-Physics (2009)
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Example of Atomic Process Rates
69