P
Paul Stewart
Researcher at University of Sydney
Publications - 36
Citations - 1279
Paul Stewart is an academic researcher from University of Sydney. The author has contributed to research in topics: Interferometry & Aperture masking interferometry. The author has an hindex of 14, co-authored 36 publications receiving 1140 citations.
Papers
More filters
Journal ArticleDOI
The Subaru Coronagraphic Extreme Adaptive Optics System: Enabling High-Contrast Imaging on Solar-System Scales
Nemanja Jovanovic,Nemanja Jovanovic,Frantz Martinache,Olivier Guyon,Olivier Guyon,Christophe Clergeon,Garima Singh,Garima Singh,Tomoyuki Kudo,Vincent Garrel,K. Newman,K. Newman,D. Doughty,D. Doughty,Julien Lozi,Jared R. Males,Yosuke Minowa,Yutaka Hayano,Naruhisa Takato,Jun-Ichi Morino,Jonas Kühn,Eugene Serabyn,Barnaby Norris,Peter G. Tuthill,Guillaume Schworer,Paul Stewart,Laird M. Close,Elsa Huby,Guy Perrin,Sylvestre Lacour,L. Gauchet,Sébastien Vievard,Naoshi Murakami,Fumika Oshiyama,Naoshi Baba,Taro Matsuo,Jun Nishikawa,Motohide Tamura,Motohide Tamura,Olivier Lai,Olivier Lai,Franck Marchis,Gaspard Duchêne,Gaspard Duchêne,Takayuki Kotani,Julien Woillez +45 more
TL;DR: The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument as discussed by the authors is a multiband instrument which makes use of light from 600 to 2500 nm, allowing for coronagraphic direct exoplanet imaging of the inner 3λ/D from the stellar host.
Journal ArticleDOI
A close halo of large transparent grains around extreme red giant stars
Barnaby Norris,Peter G. Tuthill,Michael J. Ireland,Michael J. Ireland,Michael J. Ireland,Sylvestre Lacour,Albert A. Zijlstra,Foteini Lykou,Thomas M. Evans,Thomas M. Evans,Paul Stewart,Timothy R. Bedding +11 more
TL;DR: Spatially resolved, multiwavelength observations of circumstellar dust shells of three stars on the asymptotic giant branch of the Hertzsprung–Russell diagram show that transparency usually implies insufficient radiative pressure to drive a wind, the radiation field can accelerate these large grains through photon scattering rather than absorption—a plausible mass loss mechanism for lower-amplitude pulsating stars.
Journal ArticleDOI
The VAMPIRES instrument: imaging the innermost regions of protoplanetary discs with polarimetric interferometry
Barnaby Norris,Guillaume Schworer,Guillaume Schworer,Peter G. Tuthill,Nemanja Jovanovic,Olivier Guyon,Paul Stewart,F. Martinache +7 more
TL;DR: VAMPIRES as mentioned in this paper combines non-redundant aperture masking interferometry with differential polarimetry to directly image the innermost region of a protoplanetary disk.
Journal ArticleDOI
Mapping the shores of the brown dwarf desert. iii. young moving groups
Thomas M. Evans,Thomas M. Evans,Michael J. Ireland,Michael J. Ireland,Michael J. Ireland,Adam L. Kraus,Frantz Martinache,Paul Stewart,Peter G. Tuthill,Sylvestre Lacour,Sylvestre Lacour,John M. Carpenter,Lynne A. Hillenbrand +12 more
TL;DR: In this paper, an aperture masking interferometry survey for substellar companions around 67 members of the AB Doradus, β Pictoris, Hercules-Lyra, TW Hya, and Tucana-Horologium stellar associations is presented.
Journal ArticleDOI
Starlight demonstration of the Dragonfly instrument: an integrated photonic pupil-remapping interferometer for high-contrast imaging
Nemanja Jovanovic,Nemanja Jovanovic,Peter G. Tuthill,Peter G. Tuthill,Barnaby Norris,Simon Gross,Simon Gross,Paul Stewart,Ned Charles,Sylvestre Lacour,Martin Ams,Martin Ams,Jon Lawrence,Jon Lawrence,Andrew Lehmann,C. Niel,James Robertson,Graham D. Marshall,Michael J. Ireland,Michael J. Ireland,Alexander Fuerbach,Alexander Fuerbach,Michael J. Withford,Michael J. Withford +23 more
TL;DR: The integrated pupil-remapping interferometer as mentioned in this paper was proposed for the detection of young faint companions in the nearest star-forming regions by using a photonically enhanced interferometry.