Search Results - "Christou, J."

Refine Results
  1. 1

    Recurrence Quantification Analysis as a Post-processing Technique in Adaptive Optics High-contrast Imaging by Stangalini, M., Causi, G. Li, Pedichini, F., Antoniucci, S., Mattioli, M., Christou, J., Consolini, G., Hope, D., Jefferies, S. M., Piazzesi, R., Testa, V.

    Published in The Astrophysical journal (20-11-2018)
    “…In this work we explore the possibility of using recurrence quantification analysis (RQA) in astronomical high-contrast imaging to statistically discriminate…”
    Get full text
    Journal Article
  2. 2
  3. 3

    Stellar Bow Shocks in the Northern Arm of the Galactic Center: More Members and Kinematics of the Massive Star Population by Tanner, A, Ghez, A. M, Morris, M. R, Christou, J. C

    Published in The Astrophysical journal (10-05-2005)
    “…We present new 2.2 km diffraction-limited images from the W. M. Keck 10 m and Gemini 8 m telescopes of the cool Galactic center sources, IRS 1W, 5, 8, 10W, and…”
    Get full text
    Journal Article
  4. 4
  5. 5
  6. 6

    Vortex-stripe soliton interactions by Kivshar, Y.S., Nepomnyashchy, A., Tikhonenko, V., Christou, J., Luther-Davies, B.

    “…Summary form only given. Recently, different types of the soliton transverse instabilities have been observed experimentally for photorefractive, saturable…”
    Get full text
    Conference Proceeding
  7. 7
  8. 8

    The orbit of asteroid (317) Roxane’s satellite Olympias from Gemini, Keck, VLT and the SOR, and (22) Kalliope’s Linus from the SOR by Drummond, Jack D., Merline, W.J., Carry, B., Conrad, A., Tamblyn, P., Enke, B., Christou, J., Dumas, C., Chapman, C.R., Durda, D.D., Owen, W.M., Grundy, W.M., Reynolds, O.R., Buckman, M.D.

    Published in Icarus (New York, N.Y. 1962) (01-04-2021)
    “…A definitive orbit is derived for asteroid (317) Roxane’s satellite Olympias [S/2009 (317)1] by combining the 2009 discovery images from Gemini North (Merline…”
    Get full text
    Journal Article
  9. 9

    Triaxial ellipsoid dimensions and rotational poles of seven asteroids from Lick Observatory adaptive optics images, and of Ceres by Drummond, Jack, Christou, Julian

    Published in Icarus (New York, N.Y. 1962) (01-10-2008)
    “…Seven main belt asteroids, 2 Pallas, 3 Juno, 4 Vesta, 16 Psyche, 87 Sylvia, 324 Bamberga, and 707 Interamnia, were imaged with the adaptive optics system on…”
    Get full text
    Journal Article
  10. 10
  11. 11

    Photoevaporating stellar envelopes observed with Rayleigh beacon adaptive optics by Mccullough, P. R., Fugate, R. Q., Christou, J. C., Ellerbroek, B. L., Higgins, C. H., Spinhirne, J. M., Cleis, R. A., Moroney, J. F.

    Published in The Astrophysical journal (01-01-1995)
    “…We present H-alpha and I-band images of a approximately 1 min diameter field centered on theta(sup 1) C Ori made with a unique adaptive optics system that uses…”
    Get full text
    Journal Article
  12. 12

    IMAGE QUALITY, TIP-TILT CORRECTION, AND SHIFT-AND-ADD INFRARED IMAGING by CHRISTOU, JULIAN C.

    “…The image quality obtainable with shift-and-add (SAA) imaging for the recovery of diffractionlimited information is quantitatively investigated using data…”
    Get full text
    Journal Article
  13. 13

    Triaxial ellipsoid dimensions and poles of asteroids from AO observations at the Keck-II telescope by Drummond, Jack, Christou, Julian, Nelson, Jerry

    Published in Icarus (New York, N.Y. 1962) (01-07-2009)
    “…Five main belt asteroids, 2 Pallas, 129 Antigone, 409 Aspasia, 532 Herculina, and 704 Interamnia were imaged with the adaptive optics system on the 10 m…”
    Get full text
    Journal Article
  14. 14

    The Resolved Asteroid Program – Size, shape, and pole of (52) Europa by Merline, W.J., Drummond, J.D., Carry, B., Conrad, A., Tamblyn, P.M., Dumas, C., Kaasalainen, M., Erikson, A., Mottola, S., Ďurech, J., Rousseau, G., Behrend, R., Casalnuovo, G.B., Chinaglia, B., Christou, J.C., Chapman, C.R., Neyman, C.

    Published in Icarus (New York, N.Y. 1962) (01-07-2013)
    “…► We analyze adaptive-optics images of C-type Asteroid (52) Europa. ► We determine its ellipsoidal triaxial diameters, and pole orientation. ► We derive a…”
    Get full text
    Journal Article
  15. 15

    The Resolved Asteroid Program - Size, shape, and pole of (52) Europa by Merline, W. J, Drummond, J. D, Carry, B, Conrad, A, Tamblyn, P. M, Dumas, C, Kaasalainen, M, Erikson, A, Mottola, S, Durech, J, Rousseau, G, Behrend, R, Casalnuovo, G. B, Chinaglia, B, Christou, J. C, Chapman, C. R, Neyman, C

    Published 22-01-2013
    “…With the adaptive optics (AO) system on the 10 m Keck-II telescope, we acquired a high quality set of 84 images at 14 epochs of asteroid (52) Europa on 2005…”
    Get full text
    Journal Article
  16. 16

    Synthetic aperture imaging at infrared wavelengths by Haniff, C. A., Buscher, D. F., Christou, J. C., Ridgway, S. T.

    “…Observations of η Oph and γ CrB at a wavelength of 2.2 µm indicate that diffraction-limited images of high dynamic range are routinely attainable with…”
    Get full text
    Journal Article
  17. 17
  18. 18

    The triaxial ellipsoid dimensions, rotational pole, and bulk density of ESA Rosetta target asteroid (21) Lutetia by Drummond, J. D, Conrad, A, Merline, W. J, Carry, B, Chapman, C. R, Weaver, H. A, Tamblyn, P. M, Christou, J. C, Dumas, C

    Published 17-06-2010
    “…We seek the best size estimates of the asteroid (21) Lutetia, the direction of its spin axis, and its bulk density, assuming its shape is well described by a…”
    Get full text
    Journal Article
  19. 19

    Physical properties of ESA Rosetta target asteroid (21) Lutetia: Shape and flyby geometry by Carry, B, Kaasalainen, M, Leyrat, C, Merline, W. J, Drummond, J. D, Conrad, A, Weaver, H. A, Tamblyn, P. M, Chapman, C. R, Dumas, C, Colas, F, Christou, J. C, Dotto, E, Perna, D, Fornasier, S, Bernasconi, L, Behrend, R, Vachier, F, Kryszczynska, A, Polinska, M, Fulchignoni, M, Roy, R, Naves, R, Poncy, R, Wiggins, P

    Published 17-06-2010
    “…Aims. We determine the physical properties (spin state and shape) of asteroid (21) Lutetia, target of the ESA Rosetta mission, to help in preparing for…”
    Get full text
    Journal Article
  20. 20

    Effect of wavelength on in vivo images of the human cone mosaic by Choi, Stacey S, Doble, Nathan, Lin, Julianna, Christou, Julian, Williams, David R

    “…In images of the human fundus, the fraction of the total returning light that comes from the choroidal layers behind the retina increases with wavelength…”
    Get more information
    Journal Article