Contributo in atti di convegno, 2016, ENG, 10.1117/12.2231898

GIANO and HARPS-N together, towards an Earth-mass detection instrument

Tozzi, A.; Oliva, E.; Iuzzolino, M.; Fini, L.; Puglisi, A.; Sozzi, M.; Falcini, G.; Carbonaro, L.; Ghedina, A.; Mercatelli, L.; Seemann, U.; Claudi, R.

INAF-Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, Firenze, 50125, Italy; Fundación Galileo Galilei - INAF, Rambla J. Pérez 7, Breña Baja, TF, 38712, Spain; INO-CNR, largo E. Fermi 5, Firenze, 50125, Italy; Georg-August-Univ Göttingen, Wilhelmsplatz 1, Göttingen, 37073, Germany; INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio, 5, Padova, 35141, Italy

This article describes the works we are doing for modifying the interface between the high resolution infrared spectrograph GIANO (0.97-2.4 micron) and the TNG telescope, passing from a fiber feed configuration to the original design of a direct light-feeding from the telescope to the spectrograph. So doing the IR spectrograph, GIANO, will work in parallel to HARPS-N spectrometer (0.38-0.70 micron), the visible high resolution spectrograph, thanks to a new telescope interface based on a dichroic window that simultaneously feeds the two instrumentes: this is GIARPS (GIAno & haRPS). The scientific aims of this project are to improve the radial velocity accuracy achievable with GIANO, down to a goal of 1 m/s, the value necessary to detect Earth-mass planets on habitable orbits around late-M stars, to implement simultaneous observations with Harps-N and GIANO optimizing the study of planets around cool stars. The very broad wavelengths range is particularly important to discriminate false radial velocity signals caused by stellar activity. We therefore include several absorption cells with different mixtures of gases and a stabilized Fabry Perot cavity, necessary to have absorption lines over the 0.97-2.4 microns range covered by GIANO. The commissioning of GIARPS is scheduled by the end of 2016.

Conference on Ground-Based and Airborne Instrumentation for Astronomy VI, pp. 99086C–99086C, Edinburgh, SCOTLAND, JUN 26-30, 2016

Keywords

High Resolution spectrograph, Planetary detection, IR optics, GIANO, HARPS-N

CNR authors

Mercatelli Luca

CNR institutes

INO – Istituto nazionale di ottica

ID: 370268

Year: 2016

Type: Contributo in atti di convegno

Creation: 2017-05-23 12:31:29.000

Last update: 2023-03-17 16:22:16.000

CNR authors

External IDs

CNR OAI-PMH: oai:it.cnr:prodotti:370268

DOI: 10.1117/12.2231898

Scopus: 2-s2.0-85007236250

ISI Web of Science (WoS): 000391509100181