Talk at Galaxy Group Meeting, University of Michigan, MI, USA, November 25, 2019, https://doi.org/10.6084/m9.figshare.13699429

1. Ashkbiz Danehkar
Department of Astronomy, University of Michigan
danehkar@umich.edu
In Collaborations with: Sally Oey, Will Gray, Sergiy Silich, and et al.
Galaxy Group Meeting, University of Michigan, November 25th
, 2019
Simulations of
Superwind Suppression
in Super Star Clusters
Horsehead Nebula
Horsehead Nebula

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Outline

Superwinds and Super bubbles
 Super bubble Observation
 Super bubble Thoery
 Superwind Theory

Superwinds Suppression Cooling Conditions for Star Formation
→ →

Starburst and Radiation Leakage

Hydrodynamic Simulation of Superwinds

Photoionization Modeling of Superwinds

Diagnostic Diagrams

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Superwinds and Super Bubbles
Schematic View of Superwind and Super Bubble (Romero+ 2018, Strickland+ 2003)

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Superwinds and Super Bubbles
Rosette Nebula
(Credit: Schmitz/PhotographingSpace)

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Superwinds and Super Bubbles
Rosette Nebula (Bruhweiler + 2010): 6 OB stars of NGC 2244

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Superwinds and Super Bubbles

O-type Stars:
– Temperature: 30,000 – 50,000 K
– Lumisoity: 104
- 106
L⊙
– Mass: 20 – 60 M⊙

Early B-type Stars:
– Temperature: 15,000 – 25,000 K
– Lumisoity: 103
- 104
L⊙
– Mass: 10 – 20 M⊙

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Superwinds and Super Bubbles

O-type Stars:
– Temperature: 30,000 – 50,000 K
– Lumisoity: 104
- 106
L⊙
– Mass: 20 – 60 M⊙

Early B-type Stars:
– Temperature: 15,000 – 25,000 K
– Lumisoity: 103
- 104
L⊙
– Mass: 10 – 20 M⊙

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Infrared X-ray
Optical Composite Colors
NGC 1929, LMC N44 Superbubble
Cool
Hot
Cool
Hot
Cool
Hot
Cool
Hot

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Superwinds and Super Bubbles
Schematic View of Superwind and Super Bubble (Strickland+2003)

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Superwinds and Super Bubbles
Heckman et al. 1993

Starburst SN explosions thermal-driven winds shock heat superwinds
→ → → →

Snowplow Phase Blowout phase
→

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Superwind Theory
Superbubble Theory
●
Castor+ 1975
●
Weaver+ 1977
Weaver+ 1977
Weaver+ 1977

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Superwind Theory
Supewind Theory: Starburst M82
●
Adiabatic Wind (γ=5/3)
●
Chevalier & Clegg 1985
●
Without radiative cooling
Chevalier & Clegg 1985

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Superwind Theory
Supewind Theory
●
Silich et al. 2004
●
With radiative cooling
Silich + 2004

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Hydrodynamic Simulation of Superwinds
●
Radiative Cooling
Silich + 2004
Silich + 2004

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Hydrodynamic Simulation of Superwinds
●
MAIHEM Model in FLASH: Gray+2017
●
Based on Turbulence Models with FLASH: Gray+2015, 2016, 2017
Gray, Oey, Silich + 2019

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Hydrodynamic Simulation of Superwinds
●
MAIHEM Simulations in FLASH
Temperature Density
Danehkar, Oey, Gray +

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Superwind Suppression
E
A1
A
C
B1-1
B
F L
Smith+ 2006
500 pc

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Superwind Suppression
NGC 2366
NGC 2366
Green Pea analog!
Green Pea analog!
[O II], [O III] and Continuum (Oey+ 2017)
Mrk 71
Mrk 71

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Superwind Suppression
Super Star Cluster NGC 5253 (Turner et
al. 2017)

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Conditions for Star Formation

Cold Gas (10-1000 K) → Molecular Gas (H2
and CO)

Cold Gas (10-1000 K) → Dense Clump http://abyss.uoregon.edu/~js/

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Star Formation in Dark Nebulae
Pillars of Creation
Pillars of Creation
Eagle Nebula
Eagle Nebula
Pillars of Creation
Pillars of Creation

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Conditions for Star Formation

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Hydrodynamic Simulation of Superwinds
●
MAIHEM Simulations in FLASH
Temperature Density
Danehkar, Oey, Gray +

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Physical Conditions for Star Formation

Cold Gas (10-1000 K) → Molecular Gas (H2
and CO)

Cold Gas (10-1000 K) → Dense Clump
http://astrodoc.ca/b33/
Larson 1985
Omukai et al. 2005

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Physical Conditions for Star Formation

Cold Gas (10-1000 K) → Molecular Gas (H2
and CO)

Cold Gas (10-1000 K) → Dense Clump
http://astrodoc.ca/b33/
Larson 1985
Omukai et al. 2005

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Starburst and Radiation Leakage
Heckman et al. 1993

Snowplow Phase → Blowout phase

Snowplow Phase: Superbubble

Blowout phase: Radiation Leakage

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Starburst and Radiation Leakage
Adamo et al. 2010
Haro 11
Rivera-Thorsen et al. 2017: UV continuum: green, Ha: red, Lyα: blue

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Starburst and Radiation Leakage
Rivera-Thorsen et al. 2017: UV continuum: green, Ha: red, Lyα: blue
Haro 11
Dynlop 2013

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Photoionization Modeling of Superwinds
●
Emission Lines: C IV, O III], C III], He II
GP-like galaxies J104557 & J141851 (Berg + 2019)

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Diagnostic Diagrams

BPT Diagram (Baldwin, Phillips & Terlevich 1981)
Groves et al. 2006
(Starburst)
Kewley+ 2001, 2006

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Diagnostic Diagrams
●
Emission Lines of Superwinds
BPT diagram of GP galaxies (Jaskot & Oey 2013)

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Diagnostic Diagrams
Amorin + 2017
AGN: Feltre + 2016
SF: Gutkin + 2016
AGN SF
AGN SF
AGN SF
AGN SF

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Diagnostic Diagrams
●
Emission Lines of Superwinds
Danehkar, Oey, Gray +
Radiation-bounded
Density-bounded

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Diagnostic Diagrams
●
Emission Lines of Superwinds
Zachrusson + 2013

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Starburst and Radiation Leakage
Adamo et al. 2010
Rivera-Thorsen et al. 2017: UV continuum: green, Ha: red, Lyα: blue
Haro 11

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Thank you for your attention
Thank you for your attention
Horsehead Nebula
Horsehead Nebula
Superwind Suppression in Super Star Clusters

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Superwinds and Super Bubbles
Massive Globular Cluster M54 (NGC 6715; Siegel et al. 2007)