Astrophysics Visualization

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G. M. Machado, F. Sadlo, T. Müller, D. Müller, T. Ertl:

Visualizing Solar Dynamics Data

In Proceedings of International Workshop on Vision, Modeling and Visualization (VMV), pp. 95–102, 2012.

Abstract

Solar dynamics data, particularly those from the Solar Dynamics Observatory, are now available in a sheer volume that is hard to investigate with traditional visualization tools, which mainly display 2D images. While the challenge of data access and browsing has been solved by web-based interfaces and efforts like the Helioviewer project, the approaches so far only provide 2D visualizations. We introduce the visualization of such data in the full 3D context, providing appropriate coordinate systems and projection techniques. We also apply and extend methods from volume rendering and flow visualization to 3D magnetic fields, which we derive from the sensor data in an interactive process, and introduce space-time visualization of photospheric data. Here, we concentrate on two solar phenomena: the structure and dynamics of coronal loops, and the development of the plasma convection in close vicinity of sunspots over time. Our approach avoids the time-coherence issue inherent in traditional magnetic field line placement, providing insight in the magnetic field and the structure of the coronal plasma. We are convinced that the presented techniques are applicable in many other fields such as the terrestrial magnetospheric physics, or magnetohydrodynamics simulations.

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Publications

To Appear
Reviewed Journal Papers
A. Brown, .. ..., A. Sagristà, .. ..., :
Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
Astronomy & Astrophysics, to appear.
Available files: [BibTeX] [DOI]

T. Prusti, .. ..., A. Sagristà, .. ..., :
The Gaia mission
Astronomy & Astrophysics, to appear.
Available files: [BibTeX] [DOI]

2019
Reviewed Journal Papers
A. Sagristà, S. Jordan, T. Müller, F. Sadlo:
Gaia Sky: Navigating the Gaia Catalog
IEEE Transactions on Visualization and Computer Graphics, vol. 25, no. 1, pp. 1070–1079, 2019.
Available files: [BibTeX] [DOI] [PDF] [Highres PDF] [Video] [Details]

2017
Reviewed Journal Papers
A. Sagristà, S. Jordan, A. Just, F. Dias, L. G. Nonato, F. Sadlo:
Topological Analysis of Inertial Dynamics
IEEE Transactions on Visualization and Computer Graphics, vol. 23, no. 1, pp. 950–959, 2017.
Available files: [BibTeX] [DOI] [PDF] [Highres PDF] [Technical Addendum] [Video] [Details]

Reviewed Conference Papers
R. Peikert, G. M. Machado, F. Sadlo:
Topological Extraction of Escape Maps in Divergence-Free Vector Fields
In Topological Methods in Data Analysis and Visualization IV, Springer International Publishing, pp. 171–186, 2017.
Available files: [BibTeX] [DOI] [Details]

2015
Reviewed Journal Papers
A. Manrique, E. Salvador-Solé, E. Juan, E. Hatziminaoglou, J. M. Rozas, A. Sagristà, K. Casteels, G. Bruzual, G. Magris:
Leaving the Dark Ages with AMIGA
The Astrophysical Journal Supplement Series, vol. 216, no. 1, pp. 13, 2015.
Available files: [BibTeX] [DOI] [Details]

2014
Reviewed Journal Papers
G. M. Machado, F. Sadlo, T. Müller, T. Ertl:
Escape Maps
IEEE Transactions on Visualization and Computer Graphics, vol. 20, no. 12, pp. 2604–2613, 2014.
Available files: [BibTeX] [DOI] [PDF] [Highres PDF] [Details]

2013
Reviewed Journal Papers
M. Ament, F. Sadlo, D. Weiskopf:
Ambient Volume Scattering
IEEE Transactions on Visualization and Computer Graphics, vol. 19, no. 12, pp. 2936–2945, 2013.
Available files: [BibTeX] [DOI] [PDF] [Details]

Reviewed Conference Papers
G. M. Machado, F. Sadlo, T. Ertl:
Local Extraction of Bifurcation Lines
In Proceedings of International Workshop on Vision, Modeling and Visualization (VMV), pp. 17–24, 2013.
Available files: [BibTeX] [DOI] [PDF] [Details]

2012
Reviewed Conference Papers
G. M. Machado, F. Sadlo, T. Müller, D. Müller, T. Ertl:
Visualizing Solar Dynamics Data
In Proceedings of International Workshop on Vision, Modeling and Visualization (VMV), pp. 95–102, 2012.
Available files: [BibTeX] [DOI] [PDF] [Technical Addendum] [Video] [Details]