1. The Ejecta distribution of the Cygnus Loop
2009/03/13
大阪大学　常深研究室　
木村　公、内田　裕之、常深　博、勝田　哲

2. Outline Previous observation of the Cygnus Loop
The distribution of various metal
Estimation of progenitor star mass

3. Previous non-rim observations
Tsunemi et al 2007
Katsuda et al 2008
Kimura et al 2009
The spectrum of non-rim region can be fitted by
2-component non-equilibrium ionization model
ISM
Ejecta

4. XMM-Newton Observation
Tsunemi et al 2007
Katsuda et al 2008
Kimura et al 2009
Si and Fe are distributed in the center of the loop

5. Suzaku observation - 1
Tsunemi et al 2007
Katsuda et al 2008
Kimura et al 2009
Si and Fe distributed in south-west part of the loop

6. Suzaku Observation - 2 R
(Arcmin) 0’
40’
80’
-40’
-80’
Suzaku XIS1

7. 爆発噴出物の分布 Suzaku Newton-North Newton-South R Arcmin -80’ -40’ 0’ 40’

8. 949 box regions are obtained
Suzaku: 29 observations
XMM: 9　observations
~10,000 counts / region
949 box regions are obtained
Each spectrum is fitted by
single component VNEI or
two component VNEI
Flux of each component is calculated
2D Flux
Distribution Map

9. 0.2-3.0 keV Flux Distributions of Low- and High-kT Component
in unit of counts cm-2s-1arcmin-2
Low-kT component
High-kT component

10. Temperature Distributions of Low- and High-kT Component

11. ×　 geometric center
(Levenson et al 1998)
+ metal center
10^-19 cm^-5

12. Mass of progenitor star
Type II: Woosley&Weaver 1995
Type Ia: Iwamoto et al 1999

13. Summary The distribution of various metal
There was 25arcmin gap between metal center and geometric center
Estimation of progenitor star mass
Estimated to be 12 solar mass
Future work
Increase our FOV