Research Areas - (4) Star and Planet Formation

Full path: Astronomy / Astrophysics > Observational Astrophysics > Star and Planet Formation

Department(s)/lab(s): Physics | Astrophysics Group @ Imperial
Summary:

Mohanty's group studies the formation and early evolution of stars, brown dwarfs and planetary systems, combining optical/infrared spectroscopy and ALMA observations of protoplanetary disks to understand accretion, disk chemistry and planet formation.

Department(s)/lab(s): Physics | Astrophysics Group @ Imperial
Summary:

Owen works on the theory and observational consequences of protoplanetary disk evolution, photoevaporation and exoplanet demographics, explaining features such as the observed radius gap in close-in exoplanets.

Department(s)/lab(s): School of Physics | Tinney Exoplanetary Science Group @ UNSW
Summary:

Tinney is an exoplanet hunter who builds the spectrographs he uses. He leads Veloce, the high-resolution, ultra-stable echelle spectrograph on the Anglo-Australian Telescope, whose entire purpose is to measure stellar radial velocities at the ~1 m/s level — a fractional wavelength shift of order 10^-9 — which requires obsessive control of thermal, mechanical and illumination systematics plus laser-comb or etalon wavelength calibration. He also works on brown dwarfs and on disentangling stellar activity from planetary signals. 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 — precision radial velocity is a frequency-metrology problem dressed as astronomy: like a pT/sqrt(Hz) magnetometer, the instrument's raw sensitivity was solved years ago and all remaining progress is in systematics and calibration. Good pivot target for a metrology-trained candidate.

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.