Search Results - "TUTHILL, Peter"

Radiation-driven acceleration in the expanding WR140 dust shell by Han, Yinuo, Tuthill, Peter G., Lau, Ryan M., Soulain, Anthony

“…The Wolf–Rayet (WR) binary system WR140 is a close (0.9–16.7 mas; ref. 1 ) binary star consisting of an O5 primary and WC7 companion 2 and is known as the…”
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A close halo of large transparent grains around extreme red giant stars by Norris, Barnaby R. M., Tuthill, Peter G., Ireland, Michael J., Lacour, Sylvestre, Zijlstra, Albert A., Lykou, Foteini, Evans, Thomas M., Stewart, Paul, Bedding, Timothy R.

“…The dust shells of three intermediate-mass stars are observed to lie remarkably close to the photosphere and to be composed of unexpectedly large grains,…”
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Low bend loss waveguides enable compact, efficient 3D photonic chips by Arriola, Alexander, Gross, Simon, Jovanovic, Nemanja, Charles, Ned, Tuthill, Peter G, Olaizola, Santiago M, Fuerbach, Alexander, Withford, Michael J

“…We present a novel method to fabricate low bend loss femtosecond-laser written waveguides that exploits the differential thermal stabilities of laser induced…”
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Kernel Phase and Coronagraphy with Automatic Differentiation by Pope, Benjamin J. S., Pueyo, Laurent, Xin, Yinzi, Tuthill, Peter G.

“…Abstract The accumulation of aberrations along the optical path in a telescope produces distortions and speckles in the resulting images, limiting the…”
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First on-sky demonstration of an integrated-photonic nulling interferometer: the GLINT instrument by Norris, Barnaby R M, Cvetojevic, Nick, Lagadec, Tiphaine, Jovanovic, Nemanja, Gross, Simon, Arriola, Alexander, Gretzinger, Thomas, Martinod, Marc-Antoine, Guyon, Olivier, Lozi, Julien, Withford, Michael J, Lawrence, Jon S, Tuthill, Peter

“…ABSTRACT The characterization of exoplanets is critical to understanding planet diversity and formation, their atmospheric composition, and the potential for…”
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A new gas detection technique through cross-correlation with a complex aperiodic FBG by Rahme, Matthew, Tuthill, Peter, Betters, Christopher, Large, Maryanne, Leon-Saval, Sergio

“…Optical cross-correlation is a technique that can achieve both high specificity and high sensitivity when deployed as the basis for a sensing technology…”
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MAPPING THE SHORES OF THE BROWN DWARF DESERT. IV. OPHIUCHUS by Cheetham, Anthony C., Kraus, Adam L., Ireland, Michael J., Cieza, Lucas, Rizzuto, Aaron C., Tuthill, Peter G.

“…ABSTRACT We conduct a multiplicity survey of members of the Ophiuchus cloud complex with high-resolution imaging to characterize the multiple-star population…”
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Two Rings and a Marginally Resolved, 5 au Disk around LkCa 15 Identified via Near-infrared Sparse Aperture Masking Interferometry by Blakely, Dori, Francis, Logan, Johnstone, Doug, Soulain, Anthony, Tuthill, Peter, Cheetham, Anthony, Sanchez-Bermudez, Joel, Sivaramakrishnan, Anand, Dong, Ruobing, van der Marel, Nienke, Cooper, Rachel, Vigan, Arthur, Cantalloube, Faustine

“…Abstract Sparse aperture masking interferometry (SAM) is a high-resolution observing technique that allows for imaging at and beyond a telescope’s diffraction…”
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Nonlinear Wave Front Reconstruction from a Pyramid Sensor using Neural Networks by Wong, Alison P., Norris, Barnaby R. M., Deo, Vincent, Tuthill, Peter G., Scalzo, Richard, Sweeney, David, Ahn, Kyohoon, Lozi, Julien, Vievard, Sébastien, Guyon, Olivier

“…Abstract The pyramid wave front sensor (PyWFS) has become increasingly popular to use in adaptive optics (AO) systems due to its high sensitivity. The main…”
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Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument by Martinod, Marc-Antoine, Norris, Barnaby, Tuthill, Peter, Lagadec, Tiphaine, Jovanovic, Nemanja, Cvetojevic, Nick, Gross, Simon, Arriola, Alexander, Gretzinger, Thomas, Withford, Michael J., Guyon, Olivier, Lozi, Julien, Vievard, Sébastien, Deo, Vincent, Lawrence, Jon S., Leon-Saval, Sergio

“…Characterisation of exoplanets is key to understanding their formation, composition and potential for life. Nulling interferometry, combined with extreme…”
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Resolving Decades of Periodic Spirals from the Wolf-Rayet Dust Factory WR 112 by Lau, Ryan M., Hankins, Matthew J., Han, Yinuo, Endo, Izumi, Moffat, Anthony F. J., Ressler, Michael E., Sakon, Itsuki, Sanchez-Bermudez, Joel, Soulain, Anthony, Stevens, Ian R., Tuthill, Peter G., Williams, Peredur M.

“…WR 112 is a dust-forming carbon-rich Wolf-Rayet (WC) binary with a dusty circumstellar nebula that exhibits a complex asymmetric morphology, which traces the…”
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From Dust to Nanodust: Resolving Circumstellar Dust from the Colliding-wind Binary Wolf-Rayet 140 by Lau, Ryan M., Wang, Jason, Hankins, Matthew J., Currie, Thayne, Deo, Vincent, Endo, Izumi, Guyon, Olivier, Han, Yinuo, Jones, Anthony P., Jovanovic, Nemanja, Lozi, Julien, Moffat, Anthony F. J., Onaka, Takashi, Ruane, Garreth, Sander, Andreas A. C., Tinyanont, Samaporn, Tuthill, Peter G., Weigelt, Gerd, Williams, Peredur M., Vievard, Sebastien

“…Abstract Wolf-Rayet (WR) 140 is the archetypal periodic dust-forming colliding-wind binary that hosts a carbon-rich WR (WC) star and an O-star companion with…”
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Fizeau interferometric cophasing of segmented mirrors: experimental validation by Cheetham, Anthony, Cvetojevic, Nick, Norris, Barnaby, Sivaramakrishnan, Anand, Tuthill, Peter

“…We present an optical testbed demonstration of the Fizeau Interferometric Cophasing of Segmented Mirrors (FICSM) algorithm. FICSM allows a segmented mirror to…”
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A First Look with JWST Aperture Masking Interferometry: Resolving Circumstellar Dust around the Wolf–Rayet Binary WR 137 beyond the Rayleigh Limit by Lau, Ryan M., Hankins, Matthew J., Sanchez-Bermudez, Joel, Thatte, Deepashri, Soulain, Anthony, Cooper, Rachel A., Sivaramakrishnan, Anand, Corcoran, Michael F., Greenbaum, Alexandra Z., Gull, Theodore R., Han, Yinuo, Jones, Olivia C., Madura, Thomas, Moffat, Anthony F. J., Morris, Mark R., Onaka, Takashi, Russell, Christopher M. P., Richardson, Noel D., Smith, Nathan, Tuthill, Peter, Volk, Kevin, Weigelt, Gerd, Williams, Peredur M.

“…Abstract We present infrared aperture-masking interferometry (AMI) observations of newly formed dust from the colliding winds of the massive binary Wolf–Rayet…”
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A demonstration of wavefront sensing and mirror phasing from the image domain by Pope, Benjamin, Cvetojevic, Nick, Cheetham, Anthony, Martinache, Frantz, Norris, Barnaby, Tuthill, Peter

“…In astronomy and microscopy, distortions in the wavefront affect the dynamic range of a high-contrast imaging system. These aberrations are either imposed by a…”
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Fizeau interferometric cophasing of segmented mirrors by Cheetham, Anthony C, Tuthill, Peter G, Sivaramakrishnan, Anand, Lloyd, James P

“…Segmented mirror telescope designs address issues of mechanical rigidity, but introduce the problem of aligning, or cophasing, the separate segments to conform…”
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High-angular-resolution stellar imaging with occultations from the Cassini spacecraft – III. Mira by Stewart, Paul N, Tuthill, Peter G, Nicholson, Philip D, Hedman, Matthew M

“…We present an analysis of spectral and spatial data of Mira obtained by the Cassini spacecraft, which not only observed the star's spectra over a broad range…”
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The Prototype Colliding-Wind Pinwheel WR 104 by Tuthill, Peter G, Monnier, John D, Lawrance, Nicholas, Danchi, William C, Owocki, Stan P, Gayley, Kenneth G

“…Results from the most extensive study of the time-evolving dust structure around the prototype 'pinwheel' nebula WR 104 are presented. Encompassing 11 epochs…”
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High-performance 3D waveguide architecture for astronomical pupil-remapping interferometry by Norris, Barnaby, Cvetojevic, Nick, Gross, Simon, Jovanovic, Nemanja, Stewart, Paul N, Charles, Ned, Lawrence, Jon S, Withford, Michael J, Tuthill, Peter

“…The detection and characterization of extra-solar planets is a major theme driving modern astronomy. Direct imaging of exoplanets allows access to a parameter…”
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High angular resolution stellar imaging with occultations from the Cassini spacecraft – II. Kronocyclic tomography by Stewart, Paul N., Tuthill, Peter G., Nicholson, Philip D., Hedman, Matthew M., Lloyd, James P.

“…We present an advance in the use of Cassini observations of stellar occultations by the rings of Saturn for stellar studies. Stewart et al. demonstrated the…”
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