18 citations · 41 across the 5 of their papers we have counts for
9 papers · 1 filter
Studying the Impact of Optical Aberrations on Diffraction-Limited Radial Velocity Instruments
Eric B. Bechter, Andrew J. Bechter, Justin R. Crepp +1
Spectrographs nominally contain a degree of quasi-static optical aberrations resulting from the quality of manufactured component surfaces, imperfect alignment, design residuals, t…
Final Design and On-Sky Testing of the iLocater SX Acquisition Camera: Broadband Single-Mode Fiber Coupling
Jonathan Crass, Andrew Bechter, Brian Sands +22
Enabling efficient injection of light into single-mode fibers (SMFs) is a key requirement in realizing diffraction-limited astronomical spectroscopy on ground-based telescopes. SMF…
EarthFinder Probe Mission Concept Study: Characterizing nearby stellar exoplanet systems with Earth-mass analogs for future direct imaging
Peter Plavchan, Gautam Vasisht, Chas Beichman +52
EarthFinder is a NASA Astrophysics Probe mission concept selected for study as input to the 2020 Astrophysics National Academies Decadal Survey. The EarthFinder concept is based on…
Characterization of Single-Mode Fiber Coupling at the Large Binocular Telescope
Andrew J. Bechter, Jonathan Crass, Jonathan Tesch +2
Optimizing on-sky single-mode fiber (SMF) injection is an essential part of developing precise Doppler spectrometers and new astrophotonics technologies. We installed and tested a…
Assessing the Suitability of H4RG Near Infrared Detectors for Precise Doppler Radial Velocity Measurements
Eric B. Bechter, Andrew J. Bechter, Justin R. Crepp +1
At wavelengths longwards of the sensitivity of silicon, hybrid structured mercury-cadmium-telluride (HgCdTe) detectors show promise to enable extremely precise radial velocity (RV)…
The need for single-mode fiber-fed spectrographs
Jonathan Crass, Andrew Bechter, Eric Bechter +12
Precise Doppler radial-velocity (RV) instruments will continue to play an essential role in advancing our holistic understanding of exoplanetary systems. The combination of orbital…