Himiko, a gaseous cloud half the diameter of the Milky Way that is the most massive structure known to have existed in the early universe, belongs to a class of objects named for this scientist.
This scientist names a phenomenon that has only been detected in Tololo-1247-232, Haro 11, and a handful of "green pea" galaxies. Himiko, a gaseous cloud half the diameter of the Milky Way that is the most massive structure known to have existed in the early universe, belongs to a class of objects named for this scientist. He also names a technique that enables the identification of star-forming galaxies with redshifts around  z  equals three based on the suppression of radiation at wavelengths shorter than 91.2 nanometers. At redshifts greater than  z  equals six, there is enough neutral hydrogen in the intergalactic medium to cause quasar emission spectra to exhibit a Gunn-Peterson trough rather than this scientist's namesake "alpha forest." For 10 points, identify this scientist whose namesake series is generated by electrons transitioning to the lowest energy level of the hydrogen atom.
This scientist names a phenomenon that has only been detected in Tololo-1247-232, Haro 11, and a handful of "green pea" galaxies.
Theodore  Lyman  [or  Lyman  continuum leakage; or  Lyman -alpha blobs; or  Lyman  break technique; or Lyman -alpha forest; or  Lyman  series]