Séminaire IPAG

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The search of exoplanets around M dwarfs and new planetary occurrence statistics

jeudi 26 septembre 2024 - 11h00

Lucile Mignon - IPAG
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After more 20 years of operation, HARPS continues to be one of the most precise, stable, and and consequently prolific planet-searcher spectrographs. Despite not being specifically designed for low-mass stars, over 200 M dwarfs have been monitored with HARPS during this time. Through a comprehensive and uniform analysis of the radial velocity data from this sample, we have established a new planetary occurrence statistics for M dwarfs. In 2023, NIRPS was officially integrated with HARPS on the ESO 3.6-m telescope, achieving radial velocity precision of 1 m/s. This NIRPS-HARPS tandem stands out as one of the best instruments for probing the habitable zones of the closest M dwarfs.

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Salle Manuel Forestini, 414 rue de la piscine, 38400 Saint Martin d'Hères