activity
20182022
most citedThe EXPRES Stellar Signals Project II. State of the Field in Disentangling Photospheric Velocities

61 citations · 111 across the 3 of their papers we have counts for

collaborators

7 papers

astro-ph.EP2022★ 61 cited

The EXPRES Stellar Signals Project II. State of the Field in Disentangling Photospheric Velocities

Lily L. Zhao, Debra A. Fischer, Eric B. Ford +40

Measured spectral shifts due to intrinsic stellar variability (e.g., pulsations, granulation) and activity (e.g., spots, plages) are the largest source of error for extreme precisi…

astro-ph.EP2021

EXPRES. III. Revealing the Stellar Activity Radial Velocity Signature of Eridani with Photometry and Interferometry

Rachael M. Roettenbacher, Samuel H. C. Cabot, Debra A. Fischer +20

The distortions of absorption line profiles caused by photospheric brightness variations on the surfaces of cool, main-sequence stars can mimic or overwhelm radial velocity (RV) sh…

astro-ph.EP2020★ 12 cited

EXPRES. II. Searching for Planets Around Active Stars: A Case Study of HD 101501

Samuel H. C. Cabot, Rachael M. Roettenbacher, Gregory W. Henry +7

By controlling instrumental errors to below 10 cm/s, the EXtreme PREcision Spectrograph (EXPRES) allows for a more insightful study of photospheric velocities that can mask weak Ke…

astro-ph.EP2020★ 38 cited

EXPRES I. HD~3651 an Ideal RV Benchmark

John M. Brewer, Debra A. Fischer, Ryan T. Blackman +10

The next generation of exoplanet-hunting spectrographs should deliver up to an order of magnitude improvement in radial velocity precision over the standard 1 m/s state of the art.…

astro-ph.IM2020

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…

astro-ph.IM2020

An Extreme Precision Radial Velocity Pipeline: First Radial Velocities from EXPRES

Ryan R. Petersburg, J. M. Joel Ong, Lily L. Zhao +13

The EXtreme PREcision Spectrograph (EXPRES) is an environmentally stabilized, fiber-fed, , optical spectrograph. It was recently commissioned at the 4.3-m Lowell Discove…