Two-dimensional spectroscopy reveals an arc of extended emission in the gravitational lens system Q2237+0305

1. Mediavilla, E.
2. Arribas, S.
3. Del Burgo, C.
4. Oscoz, A.
5. Serra-Ricart, M.
6. Alcalde, D.
7. Falco, E.E.
8. Goicoechea, L.J.
9. García-Lorenzo, B.
10. Buitrago, J.