Showing 781 - 800 results of 918 for search '"adaptive optics"', query time: 0.18s Refine Results
  1. 781

    The SWELLS survey - IV. Precision measurements of the stellar and dark matter distributions in a spiral lens galaxy by Barnabè, M, Dutton, A, Marshall, P, Auger, M, Brewer, B, Treu, T, Bolton, A, Koo, D, Koopmans, L

    Published 2012
    “…We adopt a very flexible axisymmetric mass model constituted by a generalized Navarro-Frenk-White (NFW) dark matter halo and a stellar mass distribution obtained by deprojecting the multi-Gaussian expansion fit to the high-resolution K'-band laser guide star adaptive optics imaging data of the galaxy, with the (spatially constant) mass-to-light ratio as a free parameter. …”
    Journal article
  2. 782
  3. 783

    Planet Hunters. V. A Confirmed Jupiter-Size Planet in the Habitable Zone and 42 Planet Candidates from the Kepler Archive Data by Wang, J, Fischer, D, Barclay, T, Boyajian, T, Crepp, JR, Schwamb, M, Lintott, C, Jek, K, Smith, A, Parrish, M, Schawinski, K, Schmitt, J, Giguere, M, Brewer, J, Lynn, S, Simpson, R, Hoekstra, A, Jacobs, T, LaCourse, D, Schwengeler, H, Chopin, M

    Published 2013
    “…We conducted spectroscopic observations for nine of the brighter targets to improve the stellar parameters and we obtained adaptive optics imaging for four of the stars to search for blended background or foreground stars that could confuse our photometric modeling. …”
    Journal article
  4. 784

    The mass of the black hole in Centaurus A from SINFONI AO-assisted integral-field observations of stellar kinematics by Cappellari, M, Neumayer, N, Reunanen, J, van der Werf, P, de Zeeuw, P, Rix, H

    Published 2009
    “…The observations were obtained with SINFONI (Spectrograph for INtegral Field Observations in the Near Infrared) at the European Southern Observatory Very Large Telescope in the near-infrared (IR) (K band), using adaptive optics (AO) to correct for the blurring effect of the Earth's atmosphere. …”
    Journal article
  5. 785

    A COMPREHENSIVE VIEW OF A STRONGLY LENSED PLANCK-ASSOCIATED SUBMILLIMETER GALAXY by Fu, H, Jullo, E, Cooray, A, Bussmann, R, Ivison, R, Perez-Fournon, I, Djorgovski, S, Scoville, N, Yan, L, Riechers, D, Aguirre, J, Auld, R, Baes, M, Baker, A, Bradford, M, Cava, A, Clements, D, Dannerbauer, H, Dariush, A, De Zotti, G, Dole, H, Dunne, L, Dye, S, Eales, S, Frayer, D

    Published 2012
    “…It is the only high-redshift Planck detection in the 130deg2 H-ATLAS Phase-I area. Keck Adaptive Optics images reveal a quadruply imaged galaxy in the K band while the Submillimeter Array and the Jansky Very Large Array show doubly imaged 880 μm and CO(1→0) sources, indicating differentiated distributions of the various components in the galaxy. …”
    Journal article
  6. 786

    An Optical Distortion Solution for the Keck I OSIRIS Imager by Matthew S. R. Freeman, Jessica R. Lu, Jim Lyke, Abhimat Gautam, Renate Kupke, Andrea Ghez, Shoko Sakai, Jay Anderson, Andrea Bellini

    Published 2023-01-01
    “…Here, we derive a distortion solution for the OSIRIS Imager fed by the Keck I adaptive optics system at the W. M. Keck Observatory. …”
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    Article
  7. 787

    Performances Study of PSK and ASK Modulation Technique under Atmospheric Turbulence in FSO Communication System by Esraa Al – Gazzi, Ekbal Ali, Assel Mohammed

    Published 2024-02-01
    “…The systems can operate using adaptive optics and evaluate the system's performance in the presence of atmospheric turbulence in terms of signal quality, received power, and signal-to-noise ratio.…”
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    Article
  8. 788

    Pulse Burst Generation and Diffraction with Spatial Light Modulators for Dynamic Ultrafast Laser Materials Processing by Zheng Fang, Tong Zhou, Walter Perrie, Matthew Bilton, Jörg Schille, Udo Löschner, Stuart Edwardson, Geoff Dearden

    Published 2022-12-01
    “…This novel technique extends the flexibility of parallel beam surface micro-structuring with adaptive optics.…”
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    Article
  9. 789

    Microcirculation in Hypertension: A Therapeutic Target to Prevent Cardiovascular Disease? by Damiano Rizzoni, Claudia Agabiti-Rosei, Gianluca E. M. Boari, Maria Lorenza Muiesan, Carolina De Ciuceis

    Published 2023-07-01
    “…New non-invasive techniques, such as scanning laser Doppler flowmetry or adaptive optics, are presently under development, focusing mainly on the evaluation of WLR in retinal arterioles; recently, also retinal microvascular WLR was demonstrated to have a prognostic impact in terms of cardio- and cerebrovascular events. …”
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    Article
  10. 790
  11. 791

    Proliferative diabetic retinopathy and diabetic macular edema are two factors that increase macrophage-like cell density characterized by en face optical coherence tomography by Wenyu Wang, Gongpeng Sun, Amin Xu, Changzheng Chen

    Published 2023-02-01
    “…Abstract Background Macrophage-like cells (MLCs) located at the ILM were observed in live human retinas using adaptive optics optical coherence tomography (OCT) as well as clinically-used OCT. …”
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    Article
  12. 792

    The Effects of Optical Aberrations to Illumination Beam Thickness in Two-Photon Excitation Microscopes by Nan Li, Fanglin Luo, Chengliang Yang, Zenghui Peng, Li Xuan, Qingpan Bu, Quanquan Mu, Xingyun Zhang

    Published 2022-07-01
    “…These results may provide important guidance for the design and evaluation of adaptive optical systems in a two-photon excitation microscope.…”
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    Article
  13. 793

    Interocular symmetry, intraobserver repeatability, and interobserver reliability of cone density measurements in the 13-lined ground squirrel. by Benjamin S Sajdak, Alexander E Salmon, Rachel E Linderman, Jenna A Cava, Heather Heitkotter, Joseph Carroll

    Published 2019-01-01
    “…The ability for longitudinal assessment of a cone-dominant photoreceptor mosaic with an adaptive optics scanning light ophthalmoscope (AOSLO) has positioned the 13-LGS to become an accessible model for vision research. …”
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    Article
  14. 794

    Cone Photoreceptors in Diabetic Patients by Ann E. Elsner, Brittany R. Walker, Robert N. Gilbert, Vamsi Parimi, Joel A. Papay, Thomas J. Gast, Stephen A. Burns

    Published 2022-03-01
    “…All subjects were consented and tested in a manner approved by the Indiana University Institutional Review Board, which adhered to the Declaration of Helsinki. Custom adaptive optics scanning laser ophthalmoscopy (AOSLO) was used to image cones and retinal microcirculation. …”
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    Article
  15. 795

    KIC 7177553: A QUADRUPLE SYSTEM OF TWO CLOSE BINARIES by Lehmann, H., Borkovits, T., Ngo, H., Mawet, D., Csizmadia, Sz., Rappaport, Saul A., Forgacs-Dajka, E.

    Published 2016
    “…Direct imaging using adaptive optics reveals that the two binaries are separated by 0[" over .]4 (~167 AU) and have nearly the same magnitude (to within 2%). …”
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    Article
  16. 796
  17. 797

    The Multiplanet System TOI-421

    Published 2021
    “…We performed ground-based follow-up observations - comprised of Las Cumbres Observatory Global Telescope transit photometry, NIRC2 adaptive optics imaging, and FIbre-fed Echellé Spectrograph, CORALIE, High Accuracy Radial velocity Planet Searcher, High Resolution chelle Spectrometer, and Planet Finder Spectrograph high-precision Doppler measurements - and confirmed the planetary nature of the 16 day transiting candidate announced by the TESS team. …”
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    Article
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