ESPRESSO: The next European exoplanet hunter
- Pepe, F.
- Molaro, P.
- Cristiani, S.
- Rebolo, R.
- Santos, N.C.
- Dekker, H.
- M\ue9gevand, D.
- Zerbi, F. M.
- Cabral, A.
- Di Marcantonio, P.
- Abreu, M.
- Affolter, M.
- Aliverti, M.
- Allende Prieto, C.
- Amate, M.
- Avila, G.
- Baldini, V.
- Bristow, P.
- Broeg, C.
- Cirami, R.
- Coelho, J.
- Conconi, P.
- Coretti, I.
- Cupani, G.
- D'Odorico, V.
- De Caprio, V.
- Delabre, B.
- Dorn, R.
- Figueira, P.
- Fragoso, A.
- Galeotta, S.
- Genolet, L.
- Gomes, R.
- Gonz\ue1lez Hern\ue1ndez, J.I.
- Hughes, I.
- Iwert, O.
- Kerber, F.
- Landoni, M.
- Lizon, J.-L.
- Lovis, C.
- Maire, C.
- Mannetta, M.
- Martins, C.
- Monteiro, M.
- Oliveira, A.
- Poretti, E.
- Rasilla, J. L.
- Riva, M.
- Santana Tschudi, S.
- Santos, P.
- Sosnowska, D.
- Sousa, S.
- Span\uf3, P.
- Tenegi, F.
- Toso, G.
- Vanzella, E.
- Viel, M.
- Zapatero Osorio, M. R.
DOIAbstract
The acronym ESPRESSO stems for Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations; this instrument will be the next VLT high resolution spectrograph. The spectrograph will be installed at the Combined-Coud\ue9 Laboratory of the VLT and linked to the four 8.2 m Unit Telescopes (UT) through four optical Coud\ue9 trains. ESPRESSO will combine efficiency and extreme spectroscopic precision. ESPRESSO is foreseen to achieve a gain of two magnitudes with respect to its predecessor HARPS, and to improve the instrumental radial-velocity precision to reach the 10 cm s-1 level. It can be operated either with a single UT or with up to four UTs, enabling an additional gain in the latter mode. The incoherent combination of fo...
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