Results 31 to 40 of about 337,219 (230)
MODERNIZATION OF AZT-22 TELESCOPE OF MAIDANAK HIGH-ALTITUDE OBSERVATORY: TESTING RESULTS
Radio Physics and Radio Astronomy, 2014 The AZT-22 telescope, equipped with the ML09000-65 CCD camera, has shown to be capable of obtaining high-quality images of astronomical objects and thus solving a wide range of observational tasks.
A. V. Sergeev +9 more
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 +3 more sources
Optical surface photometry of radio galaxies [PDF]
Astronomy and Astrophysics Supplement Series, 2000 Optical imaging observations for 50 radio galaxies are presented. For each object isophotal contours, photometric profiles, structural parameters (position angle, ellipticity, Fourier coefficients), and total magnitudes are given. These observations, obtained in the Cousins R band, complement the data presented in a previous paper and are part of a ...
Govoni, F. +3 more
openaire +2 more sources
Quantifying the Contamination from nearby Stellar Companions in Gaia DR3 Photometry
The Astronomical JournalIdentifying and removing binary stars from stellar samples is a crucial but complicated task. Regardless of how carefully a sample is selected, some binaries will remain and complicate interpretation of results, especially via flux contamination of ...
Kendall Sullivan +3 more
doaj +1 more source
Energies, 2018 Energy saving in street lighting is garnering more interest and has become a priority in municipal management. Therefore, LED luminaires are gradually becoming prevalent in our cities.
Alfonso Gago-Calderón +3 more
doaj +1 more source
Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes
FEBS Open Bio, EarlyView.Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard +12 more
wiley +1 more source
Profiling the turbulent atmosphere and novel correction techniques for imaging and photometry in astronomy [PDF]
, 2010 The turbulent atmosphere has two detrimental effects in astronomy. The phase aberration induced by the turbulence broaden the point spread function (PSF) and limits the resolution for imaging.
OSBORN, JAMES
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Advanced Materials Interfaces, EarlyView.Hemagglutinin precomplexation with antibodies (Abs) results in broad valency distributions, though it increases the total avidity from mM to nM to high nM. The valency distribution and the orientation of multivalent HA‐Ab complexes determine the extent of binding to different types of assays, whether the receptors are displayed in 2D or 3D.
Daniel Y. E. L. Tambuwun +8 more
wiley +1 more source
MACHO Proper Motions from Optical/Infrared Photometry [PDF]
The Astrophysical Journal, 1996 Optical/infrared photometry can double the number of proper motion measurements of Massive Compact Objects (MACHOs) relative to single band photometry. The proper motion of a MACHO can be measured by finding the ratio $q$ of the (known) radius of the source star to the Einstein radius of the MACHO, $q=θ_s/θ_e$.
Gould, Andrew, Welch, Douglas L.
openaire +2 more sources
Micro-machined membrane deformable mirrors for cryogenic adaptive optics [PDF]
, 2002 In this Thesis, the suitability of 37 actuator Micro-machined membrane deformable mirrors (MMDM) for adaptive optics at cryogenic temperatures is evaluated. A method is described to safely cool MMDMs to 78K. The initial surface figures of three MMDMs are
Dyson, H.M., Dyson, Harold Michael
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