Results 21 to 30 of about 20,096 (267)

Tracing the young massive high-eccentricity binary system Theta 1 Orionis C through periastron passage [PDF]

, 2009
The nearby high-mass star binary system Theta 1 Orionis C is the brightest and most massive of the Trapezium OB stars at the core of the Orion Nebula Cluster, and it represents a perfect laboratory to determine the fundamental parameters of young hot ...
Baize, Baldwin, Bessell, Conti, D. Schertl, Demircan, Docobo, G. Weigelt, Genzel, Gómez, Herbig, Hillenbrand, Hirota, Hofmann, Hofmann, J. A. Docobo, Jeffries, K. Ohnaka, K.-H. Hofmann, Kratter, Kraus, Kraus, Kraus, Labeyrie, Lohmann, M. Schöller, M. Smith, Martins, Mason, Mathieu, McCaughrean, Menten, Morrell, Mozurkewich, O'Dell, Patience, Petrov, Polyakov, Pourbaix, R. Petrov, Rodríguez, Rubin, S. Kraus, Sandstrom, Schertl, Simón-Díaz, Stahl, Stahl, Stassun, Struve, T. Driebe, T. Preibisch, Tan, Tatulli, V. S. Tamazian, Vacca, Vitrichenko, Weigelt, Weigelt, Weigelt, Y. Y. Balega, Zinnecker   +61 more
core   +2 more sources

Speckle interferometry and radiative transfer modelling of the Wolf-Rayet star WR 118 [PDF]

, 2001
WR 118 is a highly evolved Wolf-Rayet star of the WC10 subtype surrounded by a permanent dust shell absorbing and re-emitting in the infrared a considerable fraction of the stellar luminosity.
Allen, B. Yudin, Cherchneff, Cohen, Crowther, D. Schertl, Draine, Egan, G. Weigelt, Ivezic, Jäger, K.-H. Hofmann, Labeyrie, Leung, Massey, Roche, Schutte, T. Blöcker, van der Hucht, van der Hucht, van der Hucht, Veen, Williams, Williams, Williams, Y. Balega   +25 more
core   +2 more sources

The use of laser dynamical speckle interferometry in the study of cellular processes

Journal of Biomedical Photonics & Engineering, 2016
A speckle interferometry setup is mounted, tested and approved that allows the analysis of intracellular processes with large optical magnification. For different part of the cell, the dependences of speckle image correlation coefficients upon time are ...
A. P. Vladimirov, I. A. Novoselova, Y. A. Mikhailova, A. A. Bakharev, D. I. Yakin   +4 more
doaj   +1 more source

Michelson Interferometry with the Keck I Telescope [PDF]

, 2000
We report the first use of Michelson interferometry on the Keck I telescope for diffraction-limited imaging in the near infrared JHK and L bands. By using an aperture mask located close to the f/25 secondary, the 10 m Keck primary mirror was transformed ...
Buscher D., Buscher D. F., Buscher D. F., C. A. Haniff, Chanan G., Cornwell T. J., E. H. Wishnow, Golay M. J. E., Gull S. F., Haniff C. A., Hogbom J., J. D. Monnier, Jennison R. C., Labeyrie A., Lohmann A. W., Michelson A. A., Monnier J. D., Negrete-Regagnon P., P. G. Tuthill, Roddier F., W. C. Danchi, Weigelt G., Wilson R. W.   +22 more
core   +2 more sources

THERMAL DEFORMATION WAVES IN HETEROGENEOUS MATERIALS [PDF]

Journal of Engineering Science (Chişinău), 2018
In the paper, a stress-strain detection method is used by correlation point interferometry, inwhich the resolution of the recording surface changes has been significantly (ten times) improved. This result was obtained
V. Zhukovsky, A. Gokhman, M. Zavoloka, I. Grynyova   +3 more
doaj   +1 more source

Outflows from the high-mass protostars NGC 7538 IRS1/2 observed with bispectrum speckle interferometry -- Signatures of flow precession [PDF]

, 2006
NGC 7538 IRS1 is a high-mass (approx. 30 M_sun) protostar with a CO outflow, an associated UCHII region, and a linear methanol maser structure, which might trace a Keplerian-rotating circumstellar disk.
A. Rosen, Akabane, Alvarez, Armitage, Balog, Bate, Blitz, Bloomer, Campbell, Campbell, Churchwell, Cliffe, D. Schertl, Davis, De Buizer, Dickel, Dyck, Dyck, E. T. Young, Eislöffel, Elsaesser, Fazio, Fendt, Fischer, Franco-Hernández, G. Weigelt, Gaume, Hackwell, Hoffman, Hofmann, Hutawarakorn, Johnston, K.-H. Hofmann, Kameya, Kameya, Kawabe, Krumholz, Labeyrie, Larwood, Lohmann, Lubow, Lugo, Lynds, M. Elitzur, Madden, McCaughrean, Menten, Minier, Minier, Ojha, Pestalozzi, Preibisch, Raga, Raga, Reid, Rosen, Rots, S. Kraus, Sandell, Scoville, Shepherd, Smith, Smith, Smith, Tamura, Terquem, Th. Preibisch, Vacca, Völker, Weigelt, Weigelt, Weigelt, Werner, Wu, Wynn-Williams, Y. Balega   +75 more
core   +2 more sources

Digital Double-Pulse Holographic Interferometry for Vibration Analysis

Shock and Vibration, 1996
Different arrangements for double-pulsed holographic and speckle interferometry for vibration analysis will be described. Experimental results obtained with films (classical holographic interferometry) and CCD cameras (digital holographic interferometry)
H.J. Tiziani, G. Pedrini
doaj   +1 more source

Imaging through turbulence with a quadrature-phase optical interferometer [PDF]

, 2005
We present an improved technique for imaging through turbulence at visible wavelengths using a rotation shearing pupil-plane interferometer, intended for astronomical and terrestrial imaging applications.
Dimotakis, Paul E., Kern, Brian, Lang, Daniel B., Martin, Chris, Thessin, Rachel N.   +4 more
core   +1 more source

Effect of the Speckle Size on the Quality of Speckle Pattern in DSPI System

IEEE Access, 2019
In order to detect the deformation and strain of materials accurately, the key is to obtain the phase information caused by dynamic loading in digital speckle pattern interferometry (DSPI).
Zhisong Li, Ping Zhong, Xin Tang, Jiayao Ling, Jiawei Chen, Guoxing He   +5 more
doaj   +1 more source

Computational de-noising based on deep learning for phase data in digital holographic interferometry

APL Photonics, 2020
This paper presents a deep-learning-based algorithm dedicated to the processing of speckle noise in phase measurements in digital holographic interferometry.
Silvio Montresor, Marie Tahon, Antoine Laurent, Pascal Picart   +3 more
doaj   +1 more source