Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Donald T. Gavel"'
Autor:
Andrew Norton, Bruce Macintosh, James E. Larkin, Abhijith Rajan, Zachary H. Draper, James R. Graham, Li-Wei Hung, Quinn Konopacky, Jennifer Patience, Donald T. Gavel, Markus Hartung, Jérôme Maire, Robert J. De Rosa, Rebecca Oppenheimer, Travis Barman, Fredrik T. Rantakyrö, Maxwell A. Millar-Blanchaer, Julien Rameau, Stephen J. Goodsell, Schuyler Wolff, Adam Burrows, Rémi Soummer, Kimberly Ward-Duong, Patrick Ingraham, Katie M. Morzinski, Gaspard Duchene, David Palmer, Andrew Cardwell, Katherine B. Follette, J. Kent Wallace, Michael P. Fitzgerald, Jennifer Dunn, Vanessa P. Bailey, Andrew Serio, Brian J. Bauman, Sandrine Thomas, Dmitry Savransky, Paul Kalas, Leslie Saddlemyer, Adam C. Schneider, Jeffrey Chilcote, Lisa Poyneer, Anand Sivaramakrishnan, Pascale Hibon, Stanimir Metchev, Sebastian Bruzzone, Alexandra Z. Greenbaum, René Doyon, Christine Chen, Joanna Bulger, Inseok Song, Daren Dillon, Jason J. Wang, Tara Cotten, Darren Erikson, Eric L. Nielsen, Naru Sadakuni, Franck Marchis, Mark S. Marley, Jeffrey Vargas, Christian Marois, Sloane Wiktorowicz, Marshall D. Perrin, Laurent Pueyo
Publikováno v:
Chilcote, J; Pueyo, L; Rosa, RJD; Vargas, J; Macintosh, B; Bailey, VP; et al.(2017). 1-2.4 μm Near-IR Spectrum of the Giant Planet β Pictoris b Obtained with the Gemini Planet Imager. Astronomical Journal, 153(4). doi: 10.3847/1538-3881/aa63e9. UCLA: Retrieved from: http://www.escholarship.org/uc/item/156460nx
Astronomical journal, 2017, Vol.153(4), pp.182 [Peer Reviewed Journal]
The Astronomical Journal, vol 153, iss 4
Astronomical Journal, vol 153, iss 4
Astronomical journal, 2017, Vol.153(4), pp.182 [Peer Reviewed Journal]
The Astronomical Journal, vol 153, iss 4
Astronomical Journal, vol 153, iss 4
Using the Gemini Planet Imager (GPI) located at Gemini South, we measured the near-infrared (1.0-2.4 micron) spectrum of the planetary companion to the nearby, young star $\beta$ Pictoris. We compare the spectrum obtained with currently published mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c198779204bbeeeb0663398563565d7
https://doi.org/10.3847/1538-3881/aa63e9
https://doi.org/10.3847/1538-3881/aa63e9
Publikováno v:
Adaptive Optics Systems V.
We present a review of the ongoing research activity surrounding the adaptive optics system at the Shane telescope (ShaneAO) particularly the R&D efforts on the technology and algorithms for that will advance AO into wider application for astronomy.
Autor:
Daren Dillon, David Palmer, Katherine B. Follette, Alexandra Z. Greenbaum, Dmitry Savransky, S. Mark Ammons, Pascale Hibon, Jason J. Wang, Bruce Macintosh, Marshall D. Perrin, Markus Hartung, Brian J. Bauman, Jean-Pierre Véran, Donald T. Gavel, Naru Sadakuni, Vanessa P. Bailey, Andrew Cardwell, Sandrine Thomas, Fredrik T. Rantakyrö, Anand Sivaramakrishnan, Lisa Poyneer
The Gemini Planet Imager's adaptive optics (AO) subsystem was designed specifically to facilitate high-contrast imaging. A definitive description of the system's algorithms and technologies as built is given. 564 AO telemetry measurements from the Ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21ecb2485f90f647ff501df5371127d5
https://doi.org/10.1364/ao.55.000323
https://doi.org/10.1364/ao.55.000323
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 387:173-187
Over the past decade, adaptive optics (AO) has become an established method for overcoming the effects of atmospheric turbulence on both astronomical imaging and spectroscopic observations. These systems are now beginning to make extensive use of las
Autor:
James E. Larkin, J. Kent Wallace, Brian J. Bauman, René Doyon, David W. Palmer, James R. Graham, Darren Erikson, Anand Sivaramakrishnan, L. Poyneer, Bruce Macintosh, Rémi Soummer, Donald T. Gavel, Jean-Pierre Véran, Ben R. Oppenheimer, L. Saddlemyer
Publikováno v:
Comptes Rendus Physique. 8:365-373
The direct detection of photons emitted or reflected by extrasolar planets, spatially resolved from their parent star, is a major frontier in the study of other solar systems. Direct detection will provide statistical information on planets in 5–50
Second Generation Laser Guide Star Adaptive Optics for Astronomy: MEMS and Fiber Lasers Lead the Way
Autor:
Donald T. Gavel
Publikováno v:
Imaging and Applied Optics 2015.
This talk will provide an overview the second generation adaptive optics system at the Shane telescope (ShaneAO) along with R&D efforts on devices and algorithms for that will advance AO into wider application for astronomy.
Pulsed sodium laser guide stars (LGS) are useful because they allow for Rayleigh blanking and fratricide avoidance in multiple-LGS systems. Bloch-equation simulations of sodium-light interactions show that these may be able to achieve photon returns
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::732e7f949b2a892b3f053af6432dc12c
Autor:
Inseok Song, Naru Sadakuni, Sloane J. Wiktorowicz, Brian J. Bauman, Mark S. Marley, Paul Kalas, Daren Dillon, Dmitry Savransky, Stephen J. Goodsell, Schuyler Wolff, Bruce Macintosh, Andrew Norton, B. R. Oppenheimer, Jennifer Dunn, Andrew Serio, James R. Graham, Pascale Hibon, J. Kent Wallace, Travis Barman, Markus Hartung, Christian Marois, Jennifer Patience, Donald T. Gavel, Jeffrey Chilcote, Michael P. Fitzgerald, Jérôme Maire, Robert J. De Rosa, Andrew Cardwell, Katie M. Morzinski, Laurent Pueyo, Patrick Ingraham, Quinn Konopacky, Adam Burrows, Rémi Soummer, Sandrine Thomas, Marshall D. Perrin, Franck Marchis, Max Millar-Blanchaer, David W. Palmer, Anand Sivaramakrishnan, Lisa Poyneer, Fredrik T. Rantakyrö, René Doyon, James E. Larkin, Leslie Saddlemyer, Darren Erikson
Publikováno v:
Astrophysical Journal Letters, vol 798, iss 1
Chilcote, J; Barman, T; Fitzgerald, MP; Graham, JR; Larkin, JE; Macintosh, B; et al.(2015). The first H-band spectrum of the giant planet β Pictoris b. Astrophysical Journal Letters, 798(1). doi: 10.1088/2041-8205/798/1/L3. UCLA: Retrieved from: http://www.escholarship.org/uc/item/74m935rd
The Astrophysical Journal Letters, vol 798, iss 1
Chilcote, J; Barman, T; Fitzgerald, MP; Graham, JR; Larkin, JE; Macintosh, B; et al.(2015). The first H-band spectrum of the giant planet β Pictoris b. Astrophysical Journal Letters, 798(1). doi: 10.1088/2041-8205/798/1/L3. UCLA: Retrieved from: http://www.escholarship.org/uc/item/74m935rd
The Astrophysical Journal Letters, vol 798, iss 1
© 2015. The American Astronomical Society. All rights reserved. Using the recently installed Gemini Planet Imager (GPI), we have obtained the first H-band spectrum of the planetary companion to the nearby young star β Pictoris. GPI is designed to i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::274602f2cd2b476b4eaa339ab1351593
https://escholarship.org/uc/item/74m935rd
https://escholarship.org/uc/item/74m935rd
Autor:
Donald T. Gavel, Claire E. Max, I. de Pater, Bruce Macintosh, Seran G. Gibbard, Eliot F. Young, Henry G. Roe, Andrea M. Ghez, Christopher P. McKay
Publikováno v:
Icarus. 169:429-439
We present results from 14 nights of observations of Titan in 1996-1998 using near-infrared (centered at 2.1 microns) speckle imaging at the 10-meter W.M. Keck Telescope. The observations have a spatial resolution of 0.06 arcseconds. We detect bright
Autor:
M Eckart, Claire E. Max, Andrea M. Ghez, Donald T. Gavel, John R. Spencer, I. de Pater, Seran G. Gibbard, Bruce Macintosh
Publikováno v:
Icarus. 165:137-143
Using speckle imaging techniques on the 10-m W.M. Keck I telescope, we observed near-infrared emission at 2.2 μm from volcanic hotspots on Io in July–August 1998. Using several hundreds of short-exposure images we reconstructed diffraction-limited