Results 21 to 30 of about 1,351 (207)
Optical Photometry of GRB 021004: The First Month [PDF]
The Astronomical Journal, 2003 21 pages with five figures. Uses AASTEX 5.02. To appear in AJ.
Holland, S.T. +19 more
openaire +4 more sources
Machinery & Energetics, 2022 This paper presents new scientific results of experimental studies that refute the generally accepted fact that the coat solely protects animals from the effects of solar energy.
L. Сhervinsky +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
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The photometry of optical instruments [PDF]
Transactions of the Optical Society, 1922 The use of a portable surface-brightness photometer of the polarisation type for the measurement of the fraction of the incident light transmitted by an optical instrument or reflected by a mirror or system of mirrors, and for the measurement of the relative brightness of different parts of the field of view of an optical instrument, is described.
openaire +2 more sources
Fast CCD Photometry in the Taiwan-America Occultation Survey
Open Astronomy, 2003 We describe the efforts of the Taiwan-America Occultation Survey (TAOS) project to develop a data acquisition and analysis scheme for fast CCD imaging photometry.
Chen W. P. +18 more
doaj +1 more source
Optical and Infrared Photometry of the nearby SN 2017cbv [PDF]
The Astrophysical Journal, 2018 Abstract On 2017 March 11, the DLT40 Transient Discovery Survey discovered SN 2017cbv in NGC 5643, a Type 2 Seyfert Galaxy in the Lupus Constellation. SN 2017cbv went on to become a bright Type Ia supernova, with a V max of 11.51 ± 0.05 mag.
Jerrick Wee +3 more
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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
Optical photometry of the UCM Lists I and II [PDF]
Astronomy and Astrophysics Supplement Series, 2000 14 pages, 7 PostScript figures, accepted for publication in A&AS, also available vi ftp at ftp://cutrex.fis.ucm.es/pub/OUT/pag/PAPERS/
Pérez González, Pablo Guillermo +3 more
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Optical Photometry of Black-Hole Candidates [PDF]
Symposium - International Astronomical Union, 1996 The orbital light curves of SXTs are discussed. In principle, the orbital inclination can be determined from the ellipsoidal variations, allowing a complete solution for the component masses. Complications in this analysis are described, and the evidence for superhumps in the light curves is reviewed.
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Optical and Radio Surface Photometry of NGC 891 [PDF]
Symposium - International Astronomical Union, 1990 A general correlation between the radio and optical continuum surface brightness has been found in the edge-on galaxy NGC 891. This suggests that the relativistic electrons are produced/accelerated in the vicinity of evolved stars or stellar remnants which have a spatial distribution similar to old disk stars.
F. X. Hu +3 more
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