# MAESTRO, CASTRO, and SEDONA -- Petascale Codes for Astrophysical Applications

@article{Almgren2010MAESTROCA, title={MAESTRO, CASTRO, and SEDONA -- Petascale Codes for Astrophysical Applications}, author={Ann S. Almgren and John B. Bell and Daniel N. Kasen and Michael Lijewski and Andrew Nonaka and Peter E. Nugent and Charles A. Rendleman and R. C. Thomas and Michael Zingale}, journal={arXiv: Instrumentation and Methods for Astrophysics}, year={2010} }

Performing high-resolution, high-fidelity, three-dimensional simulations of Type Ia supernovae (SNe Ia) requires not only algorithms that accurately represent the correct physics, but also codes that effectively harness the resources of the most powerful supercomputers. We are developing a suite of codes that provide the capability to perform end-to-end simulations of SNe Ia, from the early convective phase leading up to ignition to the explosion phase in which deflagration/detonation waves… Expand

#### 16 Citations

Lawrence Berkeley National Laboratory Recent Work Title From Convection to Explosion : End-to-End Simulation of Type Ia

- Geology
- 2011

We present our end-to-end capability for computing the convective phase through the explosion phase of Type Ia supernovae. We compute the convective phase up to the time of ignition using our low… Expand

Type Ia supernovae: Advances in large scale simulation

- Physics
- 2009

There are two principal scientific objectives in the study of Type Ia supernovae - first, a better understanding of these complex explosions from as near first principles as possible, and second,… Expand

Petascale Block-Structured AMR Applications without Distributed Meta-data

- Computer Science
- Euro-Par
- 2011

That the Chombo AMR framework is able to achieve petascale performance without distribution of the metadata is a significant advance which allows for much simpler and faster AMR codes. Expand

High-Performance Astrophysical Simulations and Analysis with Python

- Computer Science, Physics
- 2011

Yt, an open source, community-developed astrophysical analysis and visualization toolkit for data generated by high-performance computing (HPC) simulations of astrophysical phenomena, is presented. Expand

Type I Superluminous Supernovae as Explosions inside Non-Hydrogen Circumstellar Envelopes

- Physics
- 2015

A number of Type I (hydrogenless) superluminous supernova (SLSN) events have been discovered recently. However, their nature remains debatable. One of the most promising ideas is the… Expand

Supernova Explosions inside Carbon-Oxygen Circumstellar Shells

- Physics
- 2010

Motivated by a recent discovery of Supernova 2010gx and numerical results of Fryer et al.(2010), we simulate light curves for several type I supernova models, enshrouded by dense circumstellar… Expand

PREPARING FOR AN EXPLOSION: HYDRODYNAMIC INSTABILITIES AND TURBULENCE IN PRESUPERNOVAE

- Physics
- 2014

Both observations and numerical simulations are discordant with predictions of conventional stellar evolution codes for the latest stages of a massive star's life before core collapse. The most… Expand

Toward simulating Black Widow binaries with CASTRO

- 2017

We present results and lessons learned from a 2015-2016 Blue Waters Student Internship. The project was to perform preliminary simulations of an astrophysics application, Black Widow binary systems,… Expand

Radiation hydrodynamics of supernova shock breakouts

- Physics
- 2013

Abstract The first powerful burst of photon radiation in a supernova appears when the shock front is a few photon mean-free paths below the star photosphere. This is called “shock breakout” and it is… Expand

Extending the Uintah Framework through the Petascale Modeling of Detonation in Arrays of High Explosive Devices

- Computer Science
- SIAM J. Sci. Comput.
- 2016

These improvements enabled scalable runs for the target problem and provided the capability to mode mode the fluid-structure interaction problem at the required scale. Expand

#### References

SHOWING 1-3 OF 3 REFERENCES

MAESTRO: AN ADAPTIVE LOW MACH NUMBER HYDRODYNAMICS ALGORITHM FOR STELLAR FLOWS

- Physics, Computer Science
- 2010

The development of MAESTRO is continued by incorporating adaptive mesh refinement (AMR), a low Mach number stellar hydrodynamics code that can be used to simulate long-time, low-speed flows that would be prohibitively expensive to model using traditional compressible codes. Expand

CASTRO: A NEW COMPRESSIBLE ASTROPHYSICAL SOLVER. I. HYDRODYNAMICS AND SELF-GRAVITY

- Physics
- 2010

We present a new code, CASTRO, that solves the multicomponent compressible hydrodynamic equations for astrophysical flows including self-gravity, nuclear reactions, and radiation. CASTRO uses an… Expand

Time-dependent Monte Carlo Radiative Transfer Calculations for Three-dimensional Supernova Spectra, Light Curves, and Polarization

- Physics
- 2006

We discuss Monte Carlo techniques for addressing the three-dimensional time-dependent radiative transfer problem in rapidly expanding supernova atmospheres. The transfer code SEDONA has been… Expand