Assertion: quasar | /r/CapableOf | show no absorption region
Facets:
Source sentences:
text: More recent quasars show no absorption region, but rather their spectra contain a spiky area known as the Lyman-alpha forest; this indicates that the intergalactic medium has undergone reionization into plasma, and that neutral gas exists only in small clouds.
text: More recent quasars show no absorption region but rather
text: More recent quasars show no absorption region but rather