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Jeremiah Horrocks Institute
for Mathematics, Physics and Astronomy,
University of Central Lancashire,
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Multiwavelength galaxy simulation visualizer developed by the Extragalactic Research Group at JHI

A new online tool to visualize how galaxies appear at different wavelengths and orientations has been developed by members of the JHI Extragalactic Research Group (Victor Debattista, Giovanni Natale and Cristina Popescu) in collaboration with an undergraduate student from the computing department (Aaron Cunliffe). The website titled "UCLAN's Multiwavelength Galaxy Simulation Visualizer" is accessible through the following link:


The user of the website can move sliders to vary the wavelength of the galaxy image visualized, the "inclination" and the "position angle" (the latter two are two angles which define the orientation of the galaxy). In this way, the user can realize how the appearance of galaxies varies from the ultraviolet to the sub-millimeter as well as from face-on to edge-on orientations. This variation in appearance is due to the interplay of numerous factors, including the age and metallicity of the stars, the amount of interstellar dust and their distribution throughout the galaxy.

The galaxy images have been obtained by post-processing an N-body+SPH galaxy simulation, performed using the code GASOLINE, with the 3D dust radiation transfer code DART-Ray. By following the propagation of the light emitted by the stars in the galaxy simulation, realistic galaxy images have been obtained taking into account absorption and scattering of light by the interstellar dust as well as the re-emission of the absorbed radiation in the infrared regime.

Screenshot of the webpage.

top of page Header Image : Simulated Nanoparticle (Marco Pinna, Joe Smerdon), Solar disk with SDO (NASA UClan SDO archive), V838 Monocerotis (NASA/STScl), NGC7424 (Gemini Observatory), M74 (NASA Hubble Space Telescope) NASA,and ESA ; and solar plume courtesy of SOHO /EIT consortium

Author: BB Thompson, Last Updated: 19 July 2016, 14:30

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