Fig. 2: Comparison of Azahar to an observed galaxy merger. | Nature Astronomy

Fig. 2: Comparison of Azahar to an observed galaxy merger.

From: Deciphering Lyman-α emission deep into the epoch of reionization

Fig. 2

a, NIRCam F150W (top) and HST F160W (bottom) imaging of the LAE EGSY8p68. The NIRCam imaging shows three components of the system that were previously unresolved by HST. be, analogue galaxy merger from the Azahar simulation: large-scale view of the filaments encompassing the galaxy merger (b; blue, H i density; grey-black, H ii density; yellow-white, F150W intensity), simulated NIRCam F150W observation of the Azahar merger (c); fully resolved simulated observation in the NIRCam filters (d) and hydrogen gas and ionizing radiation properties (e; blue, H i density; grey-black, H ii density; yellow-white, F150W intensity; purple, LyC radiation energy density; orange, He ii ionizing radiation energy density). The appearance of the observed system is very well reproduced by a continuing merger of three galaxies with an extended escaping LyC radiation field.

Back to article page