Cosmic Web Stripping

Cosmic web stripping can explain the observed scarcity of dwarf galaxies compared with the predicted large number of low-mass objects in a universe made mainly of Cold Dark Matter and Dark Energy (A. Benítez-Llambay, J. F. Navarro, M. G. Abadi, S. Gottlöber, G. Yepes., Y. Hoffman, M. Steinmetz, Dwarf-galaxies and the Cosmic Web, APJ 763 (2013) L41).



This movie shows the evolution of the gas component of the high-resolution region of the simulation. We track the orbits of a few galaxies in order to illustrate their interaction with the cosmic web. Legends at the start of the animation identify the ...
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Credit: Alejandro Benítez-Llambay, Mario Abadi, Julio Navarro and the CLUES team, py-sphviewer

[avi, 15 MB]
[mp4, 9.5 MB]
Snapshot [jpg, 32 KB]

This movie shows the evolution of the gaseous component of the simulation on a scale much smaller than movie #1. It adopts the same projection and reference frame as movie #1, centered on galaxy 17. Movie #2 shows in more detail an intrincate ...
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Credit: Alejandro Benítez-Llambay, Mario Abadi, Julio Navarro and the CLUES team, py-sphviewer

[avi, 6.8 MB]
[mpeg, 9.3 MB]
Snapshot [jpg, 38 KB]

This movie shows the evolution of the dark matter component in the same scale and reference frame as Movie #2. This animation shows again the intrincate network of filaments/ pancakes that collapse into a ...
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Credit: Alejandro Benítez-Llambay, Mario Abadi, Julio Navarro and the CLUES team, py-sphviewer

[avi, 11 MB]
[mp4, 7.4 MB]
Snapshot [jpg, 44 KB]

This movie shows the evolution of the dark matter and gas component centered on galaxy 17. This movie shows the same like Movie #2 and Movie #3 but with the camera at a distance "d" from galaxy 17. It is possible to distinguish the 3D environment surrounding galaxy 17. Movie #4 makes clear that the interaction between the galaxy and the cosmic web leads to the removal of a large part of the gaseous halo of galaxy 17 and several other galaxies. This gas may be seen streaming down toward the pancake at z ~ 1.4, as the camera rotates. The change of contrast in the right-side panel was made in order to make clear the ram pressure stripping features that halo of galaxy 17 shows. Once the camera stops, the contrast returns to the previous value and the animation continues.

Credit: Alejandro Benítez-Llambay, Mario Abadi, Julio Navarro and the CLUES team, py-sphviewer

[avi, 26 MB]
[mp4, 23 MB]
Snapshot [jpg, 37 KB]