Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Michael Lloyd-Hart"'
Autor:
Laird M. Close, D. Potter, Aigen Li, P. M. Hinz, Francois Wildi, Michael Lloyd-Hart, Beth Biller, Benjamin D. Oppenheimer, William F. Hoffmann, G. Brusa, D. Miller, John H. Bieging
Publikováno v:
The Astrophysical Journal. 620:450-458
We present high resolution (~0.1"), very high Strehl ratio (0.97+-0.03) mid-infrared (IR) adaptive optics (AO) images of the AGB star RV Boo utilizing the MMT adaptive secondary AO system. RV Boo was observed at a number of wavelengths over two epoch
Autor:
William F. Hoffmann, Patrick C. McGuire, James Roger P. Angel, Guido Brusa, Matthew A. Kenworthy, W. M. Liu, Francois Wildi, Michael Lloyd-Hart, Doug Miller, Philip M. Hinz
Publikováno v:
The Astrophysical Journal. 610:L125-L128
We present the results of mid-infrared nulling interferometric observations of the main-sequence star alpha Lyr (Vega) using the 6.5 m MMT with its adaptive secondary mirror. From the observations at 10.6 microns, we find that there is no resolved em
Autor:
Manny Montoya, R. G. Allen, Nick Siegler, R. Sosa, Mario Rascon, Armando Riccardi, Dylan Curley, Donald W. McCarthy, Hubert M. Martin, Piero Salinari, Francois Wildi, Michael Lloyd-Hart, Don Fisher, Doug Miller, Matt Rademacher, Roger Angel, Wolfgang J. Duschl, Guido Brusa, Laird M. Close
Publikováno v:
The Astrophysical Journal. 599:537-547
We present the first scientific images obtained with a deformable secondary mirror adaptive optics (AO) system. We utilized the 6.5 m Multiple Mirror Telescope adaptive optics system to produce high-resolution (FWHM ¼ 0>07) near-infrared (1.6 lm) im
Autor:
Phil Hinz, Michael Lloyd-Hart, John H. Bieging, Doug Miller, Don Fisher, Beth Biller, Guido Brusa, Francois Wildi, Laird M. Close, William F. Hoffmann, Roger Angel
Publikováno v:
The Astrophysical Journal. 598:L35-L38
We utilized the MMT's unique deformable secondary adaptive optics system to produce high-resolution (FWHM=0.3"), very high Strehl mid-infrared (9.8, 11.7 & 18 micron) images of the post-AGB star AC Her. The very high (98+/-2%) Strehls achieved with M
Publikováno v:
Computing in Science & Engineering. 5:42-51
Advances in computing power are improving astronomical imaging by enabling adaptive-optics technology to mitigate atmospheric and other physical variables. Present-day 3.5- to 10-meter telescopes fitted with adaptive optics see farther and with highe
Autor:
Michael Lloyd-Hart
Publikováno v:
Publications of the Astronomical Society of the Pacific. 112:264-272
An adaptive optics system is being built for the 6.5 m Multiple Mirror Telescope (MMT) conversion on Mount Hopkins for diffraction-limited observations in the near-infrared. At the heart of the system is a deformable secondary mirror which introduces
Publikováno v:
Publications of the Astronomical Society of the Pacific. 111:1577-1585
Laser beams directed into the sky from astronomical observatories to generate guide beacons for adaptive optics image-sharpening systems are a potential hazard to aircraft. Detection systems are needed to sense aircraft and interrupt the laser beam t
Autor:
E. K. Hege, Donald W. McCarthy, Brian McLeod, Todd D. Groesbeck, Eric J. Hooper, David G. Sandler, James Roger P. Angel, Ty Martinez, Bruce P. Jacobsen, Michael Lloyd-Hart
Publikováno v:
The Astrophysical Journal. 493:950-954
Adaptive optics with a sodium resonance laser guide star was used at the Multiple Mirror Telescope (MMT) in 1996 April to image the core of the globular cluster M13 (NGC 6205). A 23'' field was recorded in the Ks band with image resolution of 051, wh
Autor:
Matt Rademacher, Sebastian Ihle, Andreas Quirrenbach, Richard F. Green, Peter Buschkamp, Walfried Raab, Joar Brynnel, E. Nussbaum, Lorenzo Busoni, Udo Beckmann, Michael Lloyd-Hart, P. Hubbard, J. Borelli, Richard Davies, Luca Carbonaro, Victor Gasho, L. Barl, C. Connot, Christina Loose, Jamison Noenickx, Jesper Storm, Christian Schwab, D. Peter, M. Lehmitz, Martin Kulas, Marcus Haug, Marco Bonaglia, J. Ziegleder, Olivier Durney, Jason Lewis, Vidhya Vaitheeswaran, Thomas Bluemchen, Gilles Orban de Xivry, Guido Brusa, M. Deysenroth, Hans Gemperlein, Sebastian Rabien, Simone Esposito, Wolfgang Gässler, R. Lederer
Publikováno v:
SPIE Proceedings.
ARGOS the Advanced Rayleigh guided Ground layer adaptive Optics System for the LBT (Large Binocular Telescope) is built by a German-Italian-American consortium. It will be a seeing reducer correcting the turbulence in the lower atmosphere over a fiel
Autor:
James Roger P. Angel, Brian A. McLeod, D'nardo Colucci, Michael Lloyd-Hart, Peter Wizinowich, David Wittman, Richard G. Dekany, Donald W. McCarthy, I. Scott-Fleming
Publikováno v:
Applied optics. 31(28)
A near-infrared adaptive optics system operating at about 50 Hz has been used to control phase errors adaptively between two mirrors of the Multiple Mirror Telescope by stabilizing the position of the interference fringe in the combined unresolved fa