Papers › Visible-Light High-Contrast Imaging and Polarimetry with SCExAO/VAMPIRES
Visible-Light High-Contrast Imaging and Polarimetry with SCExAO/VAMPIRES
Miles Lucas, Barnaby Norris, Olivier Guyon, Michael Bottom, Vincent Deo, Sébastian Vievard, Julien Lozi, Kyohoon Ahn, Jaren Ashcraft, Thayne Currie, David Doelman, Tomoyuki Kudo, Lucie Leboulleux, Lucinda Lilley, Maxwell Millar-Blanchaer, Boris Safonov, Peter Tuthill, Taichi Uyama, Aidan Walk, Manxuan Zhang
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We present significant upgrades to the VAMPIRES instrument, a visible-light (600 nm to 800 nm) high-contrast imaging polarimeter integrated within SCExAO on the Subaru telescope. Key enhancements include new qCMOS detectors, coronagraphs, polarization optics, and a multiband imaging mode, improving sensitivity, resolution, and efficiency. These upgrades position VAMPIRES as a powerful tool for studying sub-stellar companions, accreting protoplanets, circumstellar disks, stellar jets, stellar mass-loss shells, and solar system objects. The instrument achieves angular resolutions from 17 mas to 21 mas and Strehl ratios up to 60%, with 5σ contrast limits of 10⁻⁴ at 0.1'' to 10⁻⁶ beyond 0.5''. We demonstrate these capabilities through spectro-polarimetric coronagraphic imaging of the HD 169142 circumstellar disk, ADI+SDI imaging of the sub-stellar companion HD 1160B, narrowband Hα imaging of the R Aqr emission nebula, and spectro-polarimetric imaging of Neptune.
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