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Dynamics of Lyman-α blobs

Lyman-α blobs are spatially extended nebulae of hydrogen line emission that may hold clues for understanding the formation and evolution of massive galaxies at high redshifts. Recent observations and simulations suggest that multiple mechanisms can explain the origin of these objects, notably including gravitational cooling radiation.

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Fig. 1: False colour image of a high-redshift Lyman-α blob from a cosmological zoom-in hydrodynamics simulation.


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Correspondence to Aaron Smith.

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Smith, A. Dynamics of Lyman-α blobs. Nat Astron 4, 648–649 (2020).

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