ESO DOI Service

• European Southern Observatory (ESO) [European Southern Observatory (ESO)]

https://archive.eso.org/doidownload/script/NIRPS

2025

European Southern Observatory (ESO)

Dataset/Dataset

Abstract: This is the collection of reduced spectra from the high-resolution near-infrared spectrograph NIRPS (Near Infra-Red Planet Searcher) in operation at the ESO La Silla 3.6m telescope. The spectrograph offers a wavelength range from 970 to 1850 nm. The median resolving power is 82000 in the HA (High Accuracy) mode and 75000 in HE (High Efficieny) mode. The spectrograph is fed with two fibres. One fibre, fibre A is placed on the object, the second fibre, fibre B can be used to either measure the sky background or to simultaneously collect light from a reference calibration source. A Fabry-Perot (FP) cavity is the operationally used simultaneous reference which allows to measure the instrumental drift between the night-time observation and the daytime wavelength calibration. The release covers practically all NIRPS science data in both HA and HE Modes. All data have been reduced automatically using the Data Reduction Software (DRS) pipeline version 3.2.6 or higher developed by the NIRPS Consortium and made publicly available to the community. It includes extraction of the spectrum, flat fielding, wavelength calibration, and flux calibration. Sky subtraction can only be performed if fibre B is placed on sky. A cross correlation with a stellar reference mask is executed in order to calculate the radial velocity (RV) of the observed object. This is an open stream release. It is complete from start of operations on 1st April 2023 until present. Data content is not fixed but grows with time as new data is acquired and processed.
Other: This is a dynamic dataset; it is growing as new data is added. The DOI refers to the newest available dataset.

DataCurator: Lo Curto, Gaspare [European Southern Observatory (ESO)]
DataCurator: Dumuque, Xavier [Université de Genève]
DataCurator: Peroux, Celine [European Southern Observatory (ESO)]
DataCurator: Bouchy, François [Université de Genève]
DataCurator: Sosnowska, Danuta [Université de Genève]
DataCurator: Mascetti, Laura [Terma Gmbh]
DataCurator: Ivanov, Valentin [European Southern Observatory (ESO)]
DataCurator: Barbieri, Mauro [Terma Gmbh]

collection_name:NIRPS collection_type:Data Stream instrument:NIRPS

References: https://archive.eso.org/ (URL)

Issued: 2025-05-21

FITS

Data Access Policy for ESO Data held in the ESO Science Archive Facility