Results 21 to 30 of about 2,141 (221)
TMT NFIRAOS: adaptive optics for the Thirty Meter Telescope [PDF]
, 2012 NFIRAOS is the first-light adaptive optics system planned for the Thirty Meter Telescope, and is being designed at the National Research Council of Canada's Herzberg Institute of Astrophysics. NFIRAOS is a laser guide star multi-conjugate adaptive optics
Joeleff Fitzsimmons +46 more
core +1 more source
ChaMPlane Optical Survey: Mosaic Photometry [PDF]
The Astrophysical Journal Supplement Series, 2005 14 pages, 10 figures, 7 tables, accepted in ApJ Supplement for ...
Zhao, Ping +6 more
openaire +2 more sources
Angular Photometry of Biological Tissue by Ellipsoidal Reflector Method
Приборы и методы измерений, 2019 Angular measurements in optics of biological tissues are used for different applied spectroscopic task for roughness surface control, define of refractive index and for research of optical properties.
M. A. Bezuglyi +3 more
doaj +1 more source
Rationale for the Choice of the Ellipsoidal Reflector Parameters for Biomedical Photometers
Приборы и методы измерений, 2021 Biomedical photometersʼ information-measuring systems with ellipsoidal reflectors have acceptable results in determining of biological tissues optical properties in the visible and near-infrared spectral range. These photometers make it possible to study
N. V. Bezuglaya +5 more
doaj +1 more source
Optical photometry and polarimetry and infrared photometry of 3C 345 in outburst
The Astrophysical Journal, 1993 We present V-band CCD photometry, UBVRI photopolarimetry, and near simultaneous JHK photometry of 3C 345 during a renewed outburst in spring of 1992, which reached maximum at the end of April. The observations also show a large and variable polarization.
Mark R. Kidger +4 more
openaire +1 more source
LBT Italia: Current Achievements and Future Directions
InstrumentsThe Large Binocular Telescope (LBT) is a world-leading astronomical observatory, where the Italian partnership has played an important role in increasing the telescope’s productivity, both through an optimized observing strategy and through peer-reviewed
Silvia Tosi +5 more
doaj +1 more source
Optical Properties of Light-Scattering Standards for CCD Photometry
Sensors, 2023 This paper analyzes the light-scattering standards currently used for calibration (verification) and systematic research in photo and spectrophotometry tools. The application specificities in studying the diffuse reflected and transmitted light during biomedical CCD photometry are considered.
Denys Bondariev +4 more
openaire +3 more sources
Detection of extrasolar planet WASP-10b by differential photometry using amateur optics
Defense and Security StudiesThis study presents the detection and characterization of the exoplanet WASP-10b using differential photometry performed with amateur astronomical equipment.
Alan Catovic, Dzan Jasarevic
doaj +1 more source
Optical photometry of the UCM lists I and II [PDF]
Astronomy & Astrophysics, 2001 We present Johnson B surface photometry for the UCM Survey galaxies. One-dimensional bulge-disk decomposition is attempted, discussing on fitting functions and computational procedures. The results from this decomposition, jointly with concentration indices and an asymmetry coefficient, are employed to study the morphological properties of these ...
Pérez González, Pablo Guillermo +3 more
openaire +5 more sources
Evaluation of Multiangle Absorption Photometry for Measuring Aerosol Light Absorption
, 2005 A new multiangle absorption photometer for the measurement of aerosol light absorption was recently introduced that builds on the simultaneous measurement of radiation transmitted through and scattered back from a particle-loaded fiber filter at multiple
Arnott, W.P. +5 more
core +1 more source