Caught in the act: A helium-reionizing quasar near the line ofsight to Q0302-003

Publisher: Edp Sciences

E-ISSN: 1432-0746|397|3|891-898

ISSN: 0004-6361

Source: Astronomy & Astrophysics, Vol.397, Iss.3, 2003-01, pp. : 891-898

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