Tags - (12) astronomical instrumentation

Department(s)/lab(s): School of Physics / Sydney Institute for Astronomy | Tuthill High Angular Resolution Group @ USyd
Summary:

Tuthill is the world's leading practitioner of aperture-masking interferometry and its modern photonic successors. His group's instruments — GLINT (a photonic nuller that destructively interferes starlight on a chip), Dragonfly, and the kernel-phase analysis framework — exist to recover structure at and below the formal diffraction limit of the telescope, in the photon-starved, speckle-dominated regime where naive imaging fails. Science targets are the dusty pinwheel nebulae of Wolf-Rayet binaries, protoplanetary discs and direct detection of exoplanets. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — this is the astronomy entry in the search that most closely mirrors the intellectual structure of quantum sensing: the instrument's performance is set by a fundamental noise floor (photon and speckle noise, analogous to the shot-noise floor at pT/sqrt(Hz)), and the entire game is designing an estimator and a hardware front end that saturate it. Preferred attribute strongly present.

Department(s)/lab(s): School of Physics | Webster Astrophysics Group @ UMelb
Summary:

Webster works on the Epoch of Reionisation with the Murchison Widefield Array, where the science goal — detecting the redshifted 21-cm signal from the first stars — is a five-orders-of-magnitude foreground-subtraction and instrumental-calibration problem rather than an astrophysics problem. Her group's contributions are in foreground modelling, ionospheric and beam calibration, and the statistical detection of a signal buried far below the systematics floor; she also works on quasar accretion physics. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — the methodological parallel is exact: like a pT/sqrt(Hz) NV ensemble measurement, a 21-cm detection lives or dies on the control of correlated systematics rather than on raw sensitivity. Borderline inclusion under the astronomy criterion, kept because the array and its calibration are the central object of study.