3D Printing Meets Computational Astrophysics: Deciphering the Structure of Eta Carinae's Inner Colliding Winds

Abstract

We present the first 3D prints of output from a supercomputer simulation of a complex astrophysical system, the colliding stellar winds in the massive (>120 M_Sun), highly eccentric (e ~ 0.9) binary star system Eta Carinae. We demonstrate the methodology used to incorporate 3D interactive figures into a PDF journal publication and the benefits of using 3D visualization and 3D printing as tools to analyze data from multidimensional numerical simulations. Using a consumer-grade 3D printer (MakerBot Replicator 2X), we successfully printed 3D smoothed particle hydrodynamics (SPH) simulations of Eta Carinae's inner (r ~ 110 au) wind-wind collision interface at multiple orbital phases. The 3D prints and visualizations reveal important, previously unknown 'finger-like' structures at orbital phases shortly after periastron (phi ~ 1.045) that protrude radially outward from the spiral wind-wind collision region. We speculate that these fingers are related to instabilities (e.g. thin-shell, Rayleigh-Taylor) that arise at the interface between the radiatively-cooled layer of dense post-shock primary-star wind and the fast (3000 km/s), adiabatic post-shock companion-star wind. The success of our work and easy identification of previously unrecognized physical features highlight the important role 3D printing and interactive graphics can play in the visualization and understanding of complex 3D time-dependent numerical simulations of astrophysical phenomena.

arXiv comment15 pages, 14 figures, 12 interactive 3D figures, 1 embedded movie. Accepted for publication in MNRAS. To view 3D interactive figures and movie, use Adobe PDF viewer

References in corpus (34)

• SPLASH: An interactive visualisation tool for Smoothed Particle Hydrodynamics simulations
• Fundamental differences between SPH and grid methods
• Modelling discontinuities and Kelvin-Helmholtz instabilities in SPH
• Nonlinear Instabilities in Shock-Bounded Slabs
• In Hot Pursuit of the Hidden Companion of Eta Carinae: An X-ray Determination of the Wind Parameters
• On the miscible Rayleigh-Taylor instability: two and three dimensions
• The periodicity of the eta Carinae events
• 3D Models of Radiatively Driven Colliding Winds In Massive O+O Star Binaries: I. Hydrodynamics
• 3D modelling of the colliding winds in Eta Carinae - evidence for radiative inhibition
• Spiralling out of control: 3D hydrodynamical modelling of the colliding winds in $\eta$Carinae
• Radiation-Hydrodynamic Models of the evolving Circumstellar Medium around Massive Stars
• The UV Scattering Halo of the Central Source Associated with Eta Carinae
• The 2003 Shell Event in eta Carinae
• Incorporating interactive 3-dimensional graphics in astronomy research papers
• Constraining the Absolute Orientation of Eta Carinae's Binary Orbit: A 3-D Dynamical Model for the Broad [Fe III] Emission
• Constraints on decreases in Eta Carinae's mass loss from 3D hydrodynamic simulations of its binary colliding winds
• X-ray Spectral Variation of Eta Carinae through the 2003 X-ray Minimum
• A multispectral view of the periodic events in eta Carinae
• Modeling the RXTE light curve of $\eta$ Carinae from a 3-D SPH simulation of its binary wind collision
• On the influence of the companion star in Eta Carinae: 2D radiative transfer modeling of the ultraviolet and optical spectra
• Multi-dimensional models of circumstellar shells around evolved massive stars
• Effect of the Coriolis Force on the Hydrodynamics of Colliding Wind Binaries
• He II 4686 in eta Carinae: collapse of the wind-wind collision region during periastron passage
• Detection of high-velocity material from the wind-wind collision zone of Eta Carinae across the 2009.0 periastron passage
• Submillimetre Variability of Eta Carinae: cool dust within the outer ejecta
• X-ray Emission from Eta Carinae near Periastron in 2009 I: A Two State Solution
• The three-dimensional structure of the Eta Carinae Homunculus
• Galaxy emission line classification using 3D line ratio diagrams
• Is Eta Carinae a fast rotator, and how much does the companion influence the inner wind structure?
• 3D radiative transfer simulations of Eta Carinae's inner colliding winds - I. Ionization structure of helium at apastron
• A Lighthouse Effect in Eta Carinae
• A companion as the cause of latitude-dependent effects in the wind of Eta Carinae
• Augmented Reality in Astrophysics
• 3D Radiative Transfer in $\eta$ Carinae: Application of the SimpleX Algorithm to 3D SPH Simulations of Binary Colliding Winds

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• A Case Study in Astronomical 3-D Printing: The Mysterious Eta Carinae
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