Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for...
-
Upload
kylee-bufford -
Category
Documents
-
view
216 -
download
0
Transcript of Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for...
![Page 1: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/1.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Jarrod Hurley (Centre for Astrophysics & Supercomputing)
“Dynamics of Low-Mass Stellar Systems” ESO, Santiago, Chile April 4-8 2011
![Page 2: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/2.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Sizes of low-mass stellar systems
Huxor+11
![Page 3: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/3.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Sizes of low-mass stellar systems
Huxor+11
MWM31
![Page 4: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/4.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Sizes of low-mass stellar systems
Huxor+11
MWM31
M31dIrr
![Page 5: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/5.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Sizes of low-mass stellar systems
Huxor+11
M31dIrr
DM halo
MWM31
![Page 6: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/6.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
simulations of low-mass stellar systems in different tidal fields
Huxor+11
M31dIrr
DM halo
MWM31
![Page 7: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/7.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
N-body simulation background
Equation of Motion
O(N3)special-purpose GRAPE hardware
stellar evolution
binaryevolution
techniques for few-body subsystems
tidalfield
[Hurley et al. 2001] [Mardling & Aarseth 2001; Mikkola 2006, etc.]
[ NBODY4/NBODY6: Aarseth 1999; Aarseth 2003]
GPU
![Page 8: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/8.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Extended Clusters?
N = 100,000, 5% binaries, Z = 0.001, KTG IMF, Plummer/King
![Page 9: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/9.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Extended Clusters?
N = 100,000, 5% binaries, Z = 0.001, KTG IMF, Plummer/King RGC = 10 kpc
MG = 9x109 Msun M = 9x1010 Msun
point-mass point-mass or 3-componente.g. NGC6822 e.g. M31
![Page 10: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/10.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Extended Clusters?
N = 100,000, 5% binaries, Z = 0.001, KTG IMF, Plummer/King
e.g. NGC6822 e.g. M31
![Page 11: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/11.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Extended Clusters?
N = 100,000, 5% binaries, Z = 0.001, KTG IMF, Plummer/King
Hurley+Mackey10
![Page 12: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/12.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Extended Clusters?
Da Costa+09
![Page 13: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/13.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Extended Clusters?
Da Costa+09
![Page 14: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/14.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
The N = 200,000 model
200k2% binariesRgc = 4 kpc
100k5% binariesRgc = 8.5 kpc
![Page 15: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/15.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
31 127 132 308 170
25 64 152 321 554size/pc
sigma ~ 3-10 km/s
Strigari+08
![Page 16: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/16.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?MNFW = 109
c = 16Rgc = 0.5 kpc
![Page 17: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/17.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?MNFW = 109
c = 16Rgc = 0.5 kpc
![Page 18: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/18.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?MNFW = 109
c = 16Rgc = 0.5 kpc
![Page 19: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/19.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?MNFW = 109
c = 16Rgc = 0.5 kpc
![Page 20: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/20.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
N = 100,000, 5% binaries N = 28,000, 40% binaries
![Page 21: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/21.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
N = 100,000, 5% binaries N = 28,000, 40% binaries
Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
![Page 22: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/22.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
N = 100,000, 5% binaries N = 28,000, 40% binaries
Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
![Page 23: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/23.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
N = 100,000, 5% binaries N = 28,000, 40% binaries
Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
![Page 24: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/24.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
N = 100,000, 5% binaries N = 28,000, 40% binaries
Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
![Page 25: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/25.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
N = 100,000, 5% binaries N = 28,000, 40% binaries
Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
Sand+10Leo IV
![Page 26: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/26.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
N = 100,000, 5% binaries N = 28,000, 40% binaries
Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
![Page 27: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/27.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
N = 100,000, 5% binaries N = 28,000, 40% binaries
Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
rpl = 27 pc rpl = 15 pc
![Page 28: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/28.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
N = 100,000, 5% binaries N = 28,000, 40% binaries
Star cluster near centre (Rgc=20pc), MNFW = 108, c=20
Martin+08
![Page 29: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/29.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Models of Ultra-Faint Dwarfs?
M300 ~ 0.7x107 Msun sigma ~ 5 km/s
![Page 30: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/30.jpg)
Models of Faint Galaxy Production through Star Cluster Evolution
Future …
• complex tidal fields• definition of tidal radius?
• explore initial N, fb, density, sigma … non-virial protoclusters, e.g. Hurley+Bekki08
• include gas?
• …
![Page 31: Models of Faint Galaxy Production through Star Cluster Evolution Jarrod Hurley (Centre for Astrophysics & Supercomputing) “Dynamics of Low-Mass Stellar.](https://reader035.fdocuments.us/reader035/viewer/2022062417/551b1bee550346f70d8b6496/html5/thumbnails/31.jpg)
N-body simulation background