Performances of X-shooter, the new wide-band intermediate resolution spectrograph at the VLT

X-shooter is the first second-generation instrument newly commissioned a the VLT. It is a high efficiency single target intermediate resolution spectrograph covering the range 300 - 2500 nm in a single shot. We summarize the main characteristics of the instrument and present its performances as measured during commissioning and the first months of science operations.

[1]  Sabine Moehler,et al.  The physical model in action: quality control for X-Shooter , 2010, Astronomical Telescopes + Instrumentation.

[2]  J. Vernet,et al.  Data reduction software of the X-shooter spectrograph , 2006, SPIE Astronomical Telescopes + Instrumentation.

[3]  Ramon Navarro,et al.  X-shooter near-IR spectrograph arm: design and manufacturing methods , 2006, SPIE Astronomical Telescopes + Instrumentation.

[4]  Ramon Navarro,et al.  X-shooter near infra-red spectrograph cryogenic design , 2008, Astronomical Telescopes + Instrumentation.

[5]  Paolo Conconi,et al.  X-shooter: UV-to-IR intermediate-resolution high-efficiency spectrograph for the ESO VLT , 2004, SPIE Astronomical Telescopes + Instrumentation.

[6]  Isabelle Guinouard,et al.  An integral field unit for X-shooter , 2006, SPIE Astronomical Telescopes + Instrumentation.

[7]  Filippo Maria Zerbi,et al.  X-shooter UV- to K-band intermediate-resolution high-efficiency spectrograph for the VLT: status report at the final design review , 2006, SPIE Astronomical Telescopes + Instrumentation.

[8]  Marco Riva,et al.  X-shooter-backbone and UV-blue and visible spectrographs: final AIV and measured performances , 2008, Astronomical Telescopes + Instrumentation.

[9]  Andrea Zacchei,et al.  The ESO-VLT X-shooter instrument software in the VLT environment , 2006, SPIE Astronomical Telescopes + Instrumentation.

[10]  Paolo Goldoni,et al.  The X‐shooter pipeline , 2011 .

[11]  Gert Finger,et al.  X-shooter near-IR spectrograph arm realisation , 2008, Astronomical Telescopes + Instrumentation.

[12]  P. Spanò,et al.  The optical design of the X-shooter for the VLT , 2006, SPIE Astronomical Telescopes + Instrumentation.

[13]  Sabine Moehler,et al.  Using the X-shooter physical model to understand instrument flexure , 2010, Astronomical Telescopes + Instrumentation.