a three-dimensional core-collapse supernova model resembling...
TRANSCRIPT
![Page 1: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/1.jpg)
A Three-dimensional core-collapse supernova model resembling Cassiopeia A
Annop Wongwathanarat
Ewald MüllerHans-Thomas Janka
Max-Planck-Institutfür Astrophysik
SNR II : an odyssey in space after stellar death, 5 Jun 2019
Else PllumbiShinya Wanajo Sophia University
and Garching supernova group
![Page 2: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/2.jpg)
Ingredients in CCSN models and observables
Figure from Janka et al. (2012)
![Page 3: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/3.jpg)
PNS 1.1 M⊙
L�contracting inner grid
ray-by-ray grey transport
tabulated EOS by Janka & Müller (1996)
3D Newtonian self-gravity
monopole GR correction
random perturbation of 0.1% amplitude
4 nuclear species in NSE (n, p, 4He,
54Mn)
14 species (4He- 56Ni+X) alpha-reactions network
Numerics in parametrized 3D setup
PROMETHEUS-HotB
~60000 cpu hr /run
![Page 4: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/4.jpg)
core-collapse and bounce
Explosion >>> 1.3 s post bounce
Stellar evolution model
1D
3D
1.25 day after explosions
Light curves calculations
1D
State-of-the-art long-time simulations
PROMETHEUS-HotB
PROMETHEUS-HotB + Yin-Yang grid
>10 years after explosions
Michael Gabler(paper in prep.)
Victor UtrobinSasha Kozyreva
X-ray, Gamma-ray,Etc. (e.g. Dennis Alp, Anders Jerkstrand)
Thomas Ertl
![Page 5: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/5.jpg)
Progenitor models considered In 9 years , (>?)71 explosion models in 3D
![Page 6: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/6.jpg)
Explosion dynamics shock propagates according to blast wave solution (Sedov, 1959)
accelerates when ρr3 decreases, and vice versa
RSG
BSG
![Page 7: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/7.jpg)
Rayleigh-Taylor instabilities induce mixing
Kifonidis+ 2003
![Page 8: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/8.jpg)
W15-IIb: explosion of H-stripped star
Image credit: NASA/CXC/SAO
Our ejecta asymmetries came from chaotic (not
controlled) growth of hydrodynamic
instabilities
~1 day
Wongwathanarat et al. (2015,2017)
Eexp ~1.5 x 1051 erg
![Page 9: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/9.jpg)
W15-IIb: explosion of H-stripped star
Iron in Cas A
Image credit: NASA/CXC/SAO
Our ejecta asymmetries came from chaotic (not
controlled) growth of hydrodynamic
instabilities
~1 day
Wongwathanarat et al. (2015,2017)
Eexp ~1.5 x 1051 erg
![Page 10: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/10.jpg)
W15-IIb
Interactive 3D figure for 44Ti and 56Ni distribution
Our modelhttps://wwwmpa.mpa-garching.mpg.de/mpa/institute/news_archives/news1706_thj/ti.htmlhttps://wwwmpa.mpa-garching.mpg.de/mpa/institute/news_archives/news1706_thj/ni.html
Smithsonian 3Dhttps://3d.si.edu/model/fullscreen/p1b-1474716020541-1478115220819-0
![Page 11: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/11.jpg)
Type IIb model
Simulation
Grefenstette et al. (2014)
Similarities in orientation of three large Fe plumes in
our model and observations from
Cas AMore Fe opposite to NS kick as a result of
gravitational tug boat mechanism
NuSTARobservation
![Page 12: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/12.jpg)
Neutron star kicks by gravitational tug boat mechanism
Hemispheric asymmetries of heavy and intermediate mass elements Wongwathanarat et al. (2013)
![Page 13: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/13.jpg)
Spins and kicks Wongwathanarat+ (2013) Wongwathanarat+ (in prep.)
Kicks ~ several hundreds km/sSpins ~100 ms – 7 s No spin-kick alignment
![Page 14: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/14.jpg)
Pulsar kicks Katsuda+ (2018)
![Page 15: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/15.jpg)
Pulsar kicks Katsuda+ (2018)
- IME ejecta ejected preferentially opposite to the NS kick direction
- Strong support for hydrodynamic kick mechanism- See also talk by Holland-Ashford on Friday
![Page 16: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/16.jpg)
Distribution in velocity space
W15-2
W15-IIb
Without strong reverse shock from He/H
interface heavy elements retain high velocities
![Page 17: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/17.jpg)
Type IIb model
Major contribution from alpha-rich freeze-out in
neutrino-processed high-entropy ejecta
Our model can synthesize 56Ni and 44Ti roughly in
the ballpark of observational values,
without having to assume rapid rotation or jet-
driven explosion
BUT !!, subject to Ye uncertainties in SN ejecta
which still cannot be determined accurately
![Page 18: A Three-dimensional core-collapse supernova model resembling …snr2019.astro.noa.gr/wp-content/uploads/2019/08/D3-1000-Wongwat… · core-collapse and bounce Explosion>>> 1.3 s post](https://reader035.vdocument.in/reader035/viewer/2022071013/5fcb43fedbc53364a730024f/html5/thumbnails/18.jpg)
Conclusions - perform 3D simulations of CCSN from shortly after core bounce until shock breakout
- High 44Ti mass observed in Cas A can be accounted for by neutrino-driven mechanism, given the favorable condition of Ye close to 0.5
- velocities of heavy elements compatible with high values observed in stripped envelope case
- Morphology of 44Ti and 56Ni roughly in agreement with observations
- NS kick & heavy element distributions agree with theoretical expectation
- Large set of parametrized 3D models becoming feasible