![Two-dimensional Spectroscopy Reveals an Arc of Extended Emission in the Gravitational Lens System Q2237+0305]()
Two-dimensional Spectroscopy Reveals an Arc of Extended Emission in the Gravitational Lens System Q2237+0305Mediavilla, E.; Arribas, S.; del Burgo, C.; Oscoz, A.; Serra-Ricart, M.; Alcalde, D.; Falco, E. E.; Goicoechea, L. J.; García-Lorenzo, B.; Buitrago, J. · The Astrophysical Journal · 1998