Pushing the Limits of Radial Velocity Exoplanet Science with NEID and NETS

  • CART Astrophysics Seminar Series

September 24, 2026 2:00 PM - September 24, 2026 3:00 PM
PAIS 3205

Host:
Diana Dragomir
Presenter:
Arvind Gupta (University of Arizona)
Extreme precision radial velocity (EPRV) spectrographs are making strides in extending the limits of radial velocity exoplanet detection. The NEID Earth Twin Survey (NETS), a long-term RV search for low-mass planets around nearby, Sun-like stars with the NEID spectrograph, is among the most significant contributors to this effort. The NETS data set has enabled new exoplanet discoveries, the refinement of cutting-edge stellar variability mitigation methods, and detailed characterization of the performance of NEID itself. For many of our target stars – all of which have an extensive radial velocity monitoring history – we have far surpassed the exoplanet sensitivity limits achieved with the previous generation of instruments. I will present science highlights from this survey, including notable exoplanet discoveries, and I will describe how I have leveraged the data set to diagnose and improve instrument performance. I will conclude with the future outlook of NEID and the EPRV field at large, which is now perfectly positioned to play a key role in informing the design and target selection for the Habitable Worlds Observatory.

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