AEC, Initiatives in SME Cluster Development and Export Consortia Formation
Masscive Cluster Formation
-
Upload
eli-bressert -
Category
Documents
-
view
332 -
download
0
Transcript of Masscive Cluster Formation
![Page 1: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/1.jpg)
Cluster FormationMassive
Eli Bressert@astrobiased
Bolton Fellow
![Page 2: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/2.jpg)
1 2
How do YMCs form?
Where are the progenitors?
![Page 3: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/3.jpg)
What is a young massive cluster?
![Page 4: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/4.jpg)
M > ~ 10 ☉M 4
r ~ 5 pc
t ~ 2 MyrPortegies-Zwart et al. 2010
![Page 5: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/5.jpg)
Credit: ESO/VISTA Magellanic Cloud survey
100 pc
R1361-2 Myr
>104 M⊙
SFE > 30 %
![Page 6: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/6.jpg)
15 pc
Credit: ESO/S. Guisard
Ophiuchus~2 Myr
~102 M⊙
SFE < 10 %
![Page 7: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/7.jpg)
15 pc
Credit: ESO/S. Guisard
Ophiuchus~2 Myr
~102 M⊙
SFE < 10 %
![Page 8: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/8.jpg)
Theory
![Page 9: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/9.jpg)
Cluster
Clump
![Page 10: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/10.jpg)
Potential
Kinetic
![Page 11: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/11.jpg)
![Page 12: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/12.jpg)
vesc > CII
Bressert et al. (2012)
![Page 13: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/13.jpg)
vesc > CII
10 km/s
Bressert et al. (2012)
![Page 14: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/14.jpg)
⌦ = vescCII
Bressert et al. (2012)
![Page 15: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/15.jpg)
Ω < 1
Ω >1
![Page 16: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/16.jpg)
Are these precursors important?
![Page 17: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/17.jpg)
We clusters
![Page 18: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/18.jpg)
Meanwhile, back in the Galactic Centre ...
![Page 19: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/19.jpg)
The BrickLongmore et al. (2012)
Credit: NASA/JPL-Caltech/GLIMPSE Team
![Page 20: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/20.jpg)
Bressert et al. (2012) Ginsburg et al. (2012)
![Page 21: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/21.jpg)
d < 20 kpc
d < 40 Mpc
F = 31 Jy500
F = 4 Jy850
F = 2 Jy1100
F = 78 mJy500
F = 8 mJy850
F = 2 mJy1200
![Page 22: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/22.jpg)
We are able to detect all YMC progenitors in the observed Milky Way
![Page 23: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/23.jpg)
?
![Page 24: Masscive Cluster Formation](https://reader036.fdocuments.in/reader036/viewer/2022062419/5599fd771a28ab22098b45a3/html5/thumbnails/24.jpg)
Bressert et al. (2012)
Pw ⇠ 10�10 dynes cm�2. . .h
Df
2 pc
i�2
Prad ⇠ 10�10 dynes cm�2. . .h
Df
2 pc
i�2
PH ii ⇠ 10�9 dynes cm�2. . .h
Df
2 pc
i�3/2