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The Near-InfraRed Planet Searcher (NIRPS) is a high-resolution, near-infrared spectrograph optimised for detecting and characterising exoplanets around low-mass stars, working in tandem with the High Accuracy Radial velocity Planet Searcher (HARPS). While HARPS set new standards 20 years ago with its metre-per-second-level precision, NIRPS follows this successful path, achieving even better precision at infrared wavelengths. This article presents an overview of the design of NIRPS, its on-sky performance, its Guaranteed Time Observation programme, and its first scientific results.

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https://ui.adsabs.harvard.edu/abs/2025Msngr.194...13D/abstract

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The Near-InfraRed Planet Searcher (NIRPS) is a high-resolution, near-infrared spectrograph optimised for detecting and characterising exoplanets around low-mass stars, working in tandem with the High Accuracy Radial velocity Planet Searcher (HARPS). While HARPS set new standards 20 years ago with its metre-per-second-level precision, NIRPS follows this successful path, achieving even better precision at infrared wavelengths. This article presents an overview of the design of NIRPS, its on-sky performance, its Guaranteed Time Observation programme, and its first scientific results.

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