activity
20112025
most citedThe Sun as a planet-host star: Proxies from SDO images for HARPS radial-velocity variations

184 citations · 1.8k across the 52 of their papers we have counts for

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7 papers · 1 filter

astro-ph.IM2025

Building SPARCS, an Ultraviolet Science CubeSat for Exoplanet Habitability Studies, Technology Advancements, and Mission Training

Evgenya L. Shkolnik, David R. Ardila, Logan Jensen +17

The Star-Planet Activity Research CubeSat (SPARCS) is a NASA-funded 6U-CubeSat mission designed to monitor ultraviolet (UV) radiation from low-mass stars. These stars' relatively h…

astro-ph.IM2022★ 3 cited

The Star-Planet Activity Research CubeSat (SPARCS): Determining Inputs to Planetary Habitability

David R. Ardila, Evgenya Shkolnik, Paul Scowen +19

Seventy-five billion low-mass stars in our galaxy host at least one small planet in their habitable zone (HZ). The stellar ultraviolet (UV) radiation received by the planets is str…

astro-ph.IM2021★ 3 cited

Onboard Dynamic Image Exposure Control for the Star-Planet Activity Research CubeSat (SPARCS)

Tahina Ramiaramanantsoa, Judd D. Bowman, Evgenya L. Shkolnik +19

The Star-Planet Activity Research CubeSat (SPARCS) is a 6U CubeSat under development to monitor the flaring and chromospheric activity of M dwarfs at near-ultraviolet (NUV) and far…

astro-ph.IM2021★ 3 cited

Time-Resolved Photometry of the High-Energy Radiation of M Dwarfs with the Star-Planet Activity Research CubeSat (SPARCS)

Tahina Ramiaramanantsoa, Judd D. Bowman, Evgenya L. Shkolnik +18

Know thy star, know thy planet,... especially in the ultraviolet (UV). Over the past decade, that motto has grown from mere wish to necessity in the M dwarf regime, given that the…

astro-ph.IM2021★ 6 cited

IGRINS RV: A Precision RV Pipeline for IGRINS Using Modified Forward Modeling in the Near-Infrared

Asa G. Stahl, Shih-Yun Tang, Christopher M. Johns-Krull +7

Application of the radial velocity (RV) technique in the near infrared is valuable because of the diminished impact of stellar activity at longer wavelengths, making it particularl…

astro-ph.IM2020★ 76 cited

Performance Verification of the EXtreme PREcision Spectrograph

Ryan T. Blackman, Debra A. Fischer, Colby A. Jurgenson +25

The EXtreme PREcision Spectrograph (EXPRES) is a new Doppler spectrograph designed to reach a radial velocity measurement precision sufficient to detect Earth-like exoplanets orbit…