4.1k citations · 18.3k across the 152 of their papers we have counts for
5 papers · 2 filters
Optimal non-circular fiber geometries for image scrambling in high-resolution spectrographs
Julian Stürmer, Christian Schwab, Stephan Grimm +6
Optical fibers are a key component for high-resolution spectrographs to attain high precision in radial velocity measurements. We present a custom fiber with a novel core geometry…
Characterizing octagonal and rectangular fibers for MAROON-X
Adam P. Sutherland, Julian Stürmer, Katrina R. Miller +2
We report on the scrambling performance and focal-ratio-degradation (FRD) of various octagonal and rectangular fibers considered for MAROON-X. Our measurements demonstrate the detr…
Rubidium-traced white-light etalon calibrator for radial velocity measurements at the cm/s level
Julian Stürmer, Andreas Seifahrt, Christian Schwab +1
We report on the construction and testing of a vacuum-gap Fabry-Pérot etalon calibrator for high precision radial velocity spectrographs. Our etalon is traced against a rubidium fr…
Development and construction of MAROON-X
Andreas Seifahrt, Jacob L. Bean, Julian Stürmer +4
We report on the development and construction of a new fiber-fed, red-optical, high-precision radial-velocity spectrograph for one of the twin 6.5m Magellan Telescopes in Chile. MA…
A microlens-array based pupil slicer and double scrambler for MAROON-X
Andreas Seifahrt, Julian Stürmer, Jacob L. Bean
We report on the design and construction of a microlens-array (MLA)-based pupil slicer and double scrambler for MAROON-X, a new fiber-fed, red-optical, high-precision radial-veloci…