HIP 94666 Archives - Astrobiology

Top row: CCF between the best-fit model and the measured spectra for (a) HIP 21543, (b) HIP 94666, and (c) HIP 50319. The CCF SNR is included in the top left of the plots. The periodic oscillations in the CCF for HIP 50319 are due to residual fringing that was not fully removed in the fits, limiting us to a tentative detection on this target. Lower two rows: CHARA detection maps for HIP 21543 and HIP 50319. HIP 94666 is omitted as it was not detected by CHARA. The axes mark distance in milliarcseconds from the primary, with North up and East left. The white crosshairs denote the detected companion. Four maps are shown for HIP 21543, two for MIRC-X (d,f) and two for MYSTIC (e,g), across both nights. HIP 50319 has two maps (h,i), both from MYSTIC, one for each night. The upper left text in the CHARA maps denotes the observing night, beam combiner, and band for each plot.

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

Vortex Fiber Nulling for Exoplanet Observations: First Direct Detection of M Dwarf Companions around HIP 21543, HIP 94666, and HIP 50319

by Keith CowingMarch 27, 2024March 27, 2024

Vortex fiber nulling (VFN) is a technique for detecting and characterizing faint companions at small separations from their host star.