FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3090333003> ?p ?o ?g. }

• W3090333003 abstract "ESPRESSO is the new high-resolution spectrograph of ESO's Very-Large Telescope (VLT). It was designed for ultra-high radial-velocity precision and extreme spectral fidelity with the aim of performing exoplanet research and fundamental astrophysical experiments with unprecedented precision and accuracy. It is able to observe with any of the four Unit Telescopes (UT) of the VLT at a spectral resolving power of 140,000 or 190,000 over the 378.2 to 788.7 nm wavelength range, or with all UTs together, turning the VLT into a 16-m diameter equivalent telescope in terms of collecting area, while still providing a resolving power of 70,000. We provide a general description of the ESPRESSO instrument, report on the actual on-sky performance, and present our Guaranteed-Time Observation (GTO) program with its first results. ESPRESSO was installed on the Paranal Observatory in fall 2017. Commissioning (on-sky testing) was conducted between December 2017 and September 2018. The instrument saw its official start of operations on October 1st, 2018, but improvements to the instrument and re-commissioning runs were conducted until July 2019. The measured overall optical throughput of ESPRESSO at 550 nm and a seeing of 0.65 arcsec exceeds the 10% mark under nominal astro-climatic conditions. We demonstrate a radial-velocity precision of better than 25 cm/s during one night and 50 cm/s over several months. These values being limited by photon noise and stellar jitter show that the performanceis compatible with an instrumental precision of 10 cm/s. No difference has been measured across the UTs neither in throughput nor RV precision. The combination of the large collecting telescope area with the efficiency and the exquisite spectral fidelity of ESPRESSO opens a new parameter space in RV measurements, the study of planetary atmospheres, fundamental constants, stellar characterisation and many other fields." @default.
• W3090333003 created "2020-10-08" @default.
• W3090333003 creator A5000324864 @default.
• W3090333003 creator A5000856599 @default.
• W3090333003 creator A5003139286 @default.
• W3090333003 creator A5004966471 @default.
• W3090333003 creator A5006049715 @default.
• W3090333003 creator A5008637582 @default.
• W3090333003 creator A5009520486 @default.
• W3090333003 creator A5009963700 @default.
• W3090333003 creator A5011234810 @default.
• W3090333003 creator A5011576807 @default.
• W3090333003 creator A5011676504 @default.
• W3090333003 creator A5011676724 @default.
• W3090333003 creator A5011724072 @default.
• W3090333003 creator A5013853402 @default.
• W3090333003 creator A5013913491 @default.
• W3090333003 creator A5014784928 @default.
• W3090333003 creator A5017120736 @default.
• W3090333003 creator A5017440587 @default.
• W3090333003 creator A5018156597 @default.
• W3090333003 creator A5020918152 @default.
• W3090333003 creator A5022132633 @default.
• W3090333003 creator A5023734359 @default.
• W3090333003 creator A5024361650 @default.
• W3090333003 creator A5024547756 @default.
• W3090333003 creator A5025842199 @default.
• W3090333003 creator A5027906360 @default.
• W3090333003 creator A5028163484 @default.
• W3090333003 creator A5028172061 @default.
• W3090333003 creator A5028455617 @default.
• W3090333003 creator A5029489954 @default.
• W3090333003 creator A5029732789 @default.
• W3090333003 creator A5030793101 @default.
• W3090333003 creator A5031730966 @default.
• W3090333003 creator A5031906583 @default.
• W3090333003 creator A5032685144 @default.
• W3090333003 creator A5033950660 @default.
• W3090333003 creator A5035619346 @default.
• W3090333003 creator A5036591975 @default.
• W3090333003 creator A5037261358 @default.
• W3090333003 creator A5038326744 @default.
• W3090333003 creator A5038506715 @default.
• W3090333003 creator A5038607708 @default.
• W3090333003 creator A5039326581 @default.
• W3090333003 creator A5045522063 @default.
• W3090333003 creator A5047942316 @default.
• W3090333003 creator A5048656711 @default.
• W3090333003 creator A5048892215 @default.
• W3090333003 creator A5049404469 @default.
• W3090333003 creator A5049542489 @default.
• W3090333003 creator A5051065251 @default.
• W3090333003 creator A5052220235 @default.
• W3090333003 creator A5053146383 @default.
• W3090333003 creator A5053861334 @default.
• W3090333003 creator A5054099586 @default.
• W3090333003 creator A5054400631 @default.
• W3090333003 creator A5054652868 @default.
• W3090333003 creator A5056032217 @default.
• W3090333003 creator A5057030235 @default.
• W3090333003 creator A5057649247 @default.
• W3090333003 creator A5060868956 @default.
• W3090333003 creator A5062161295 @default.
• W3090333003 creator A5063107374 @default.
• W3090333003 creator A5064622518 @default.
• W3090333003 creator A5064893292 @default.
• W3090333003 creator A5065770219 @default.
• W3090333003 creator A5066527569 @default.
• W3090333003 creator A5066751693 @default.
• W3090333003 creator A5067366870 @default.
• W3090333003 creator A5069271571 @default.
• W3090333003 creator A5069924596 @default.
• W3090333003 creator A5070509762 @default.
• W3090333003 creator A5070801123 @default.
• W3090333003 creator A5070842775 @default.
• W3090333003 creator A5070961158 @default.
• W3090333003 creator A5072631207 @default.
• W3090333003 creator A5073332770 @default.
• W3090333003 creator A5073740589 @default.
• W3090333003 creator A5073896204 @default.
• W3090333003 creator A5075415729 @default.
• W3090333003 creator A5076041127 @default.
• W3090333003 creator A5076266576 @default.
• W3090333003 creator A5077370020 @default.
• W3090333003 creator A5080577515 @default.
• W3090333003 creator A5081468149 @default.
• W3090333003 creator A5082101542 @default.
• W3090333003 creator A5083285161 @default.
• W3090333003 creator A5083631885 @default.
• W3090333003 creator A5084594696 @default.
• W3090333003 creator A5084661358 @default.
• W3090333003 creator A5085237456 @default.
• W3090333003 creator A5085280806 @default.
• W3090333003 creator A5085959277 @default.
• W3090333003 creator A5086211609 @default.
• W3090333003 creator A5087654538 @default.
• W3090333003 creator A5087945190 @default.
• W3090333003 creator A5088213768 @default.
• W3090333003 creator A5090111701 @default.
• W3090333003 creator A5090139703 @default.

• next