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Small-scale Intensity Mapping: Extended Lyα, Hα, and Continuum Emission as a Probe of Halo Star Formation in High-redshift Galaxies

  • Authors: Lluís Mas-Ribas, Mark Dijkstra, Joseph F. Hennawi, Michele Trenti, Rieko Momose, and Masami Ouchi

2017 The Astrophysical Journal 841 19.

  • Provider: AAS Journals

Caption: Figure 6.

Flow chart and plots representing the effect of the different radiative processes on the diffuse extended halos. The left plot displays extended Lyα emission only in blue, indicative of significant scattering and/or cooling effects. The middle plot shows a larger extent for the Hα emission than that of the continuum (red and green, respectively), implying a contribution of fluorescence. The right plot shows extended emission for all cases, indicating the presence of star formation beyond the central galaxy.

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