Question

(d) What is the Sunburst Arc and how was it discovered?

Accepted Answer

The recently discovered strongly lensed Lyman continuum (LyC) emitter
at z=2.37, known as the "Sunburst" arc. Sources like Sunburst but
without lensing magnification might appear as Ion2-like galaxies, in
which spatially unresolved massive star clusters dominate the
ultraviolet emission. It discovered using spectroscopy.

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