activity
20172025
most citedAn Integrated-Photonics Optical-Frequency Synthesizer

968 citations · 2.1k across the 42 of their papers we have counts for

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5 papers · 1 filter

astro-ph.SR2024

Frequency Comb Calibrated Laser Heterodyne Radiometry for Precision Radial Velocity Measurements

Ryan K. Cole, Connor Fredrick, Winter Parts +6

Disk-integrated observations of the Sun provide a unique vantage point to explore stellar activity and its effect on measured radial velocities. Here, we report a new approach for…

astro-ph.SR2022★ 20 cited

Rotational modulation of spectroscopic Zeeman signatures in low-mass stars

Ryan C. Terrien, Allison Keen, Katy Oda +24

Accurate tracers of the stellar magnetic field and rotation are cornerstones for the study of M dwarfs and for reliable detection and characterization of their exoplanetary compani…

astro-ph.SR2022★ 23 cited

An eccentric Brown Dwarf eclipsing an M dwarf

Caleb I. Cañas, Suvrath Mahadevan, Chad F. Bender +16

We report the discovery of a brown dwarf transiting the early M dwarf TOI-2119 on an eccentric orbit () at an orbital period of $7.2008…

astro-ph.SR2021★ 15 cited

High resolution near-infrared spectroscopy of a flare around the ultracool dwarf vB 10

Shubham Kanodia, Lawrence W. Ramsey, Marissa Maney +20

We present high-resolution observations of a flaring event in the M8 dwarf vB 10 using the near-infrared Habitable zone Planet Finder (HPF) spectrograph on the Hobby Eberly Telesco…

astro-ph.SR2020★ 43 cited

Persistent starspot signals on M dwarfs: multi-wavelength Doppler observations with the Habitable-zone Planet Finder and Keck/HIRES

Paul Robertson, Gudmundur Stefansson, Suvrath Mahadevan +23

Young, rapidly-rotating M dwarfs exhibit prominent starspots, which create quasiperiodic signals in their photometric and Doppler spectroscopic measurements. The periodic Doppler s…