This paper performs to research in detail the Epson Expression 10000XL scanner for photographic astroplate archive of the Ulugh Beg Astronomical Institute (UBAI) of the Uzbekistan Academy of Sciences. For processing the astroplates, it is used special developed software in the LINUX/MIDAS/ROMAFOT. The test plate was digitized with grayscale 8 and 16 bits with various scanner resolutions. Astronomical and photometric parameters were carried out from the plate and an evaluation of the developed method accuracy for determining rectangular coordinates and photometry. The repeatability of astrometric and photometric errors of the scanner for the digitized resolutions, 6 successive scans of every plate with a spatial resolution 600, 900, 1200, 1500, 1800, 2100, 2400 and 2540 dpi were processed.
| Mualliflar | Yuldoshev, Q., Muminov, M., Andruk, V., Ehgamberdiev, Sh., Turaev, S. |
|---|---|
| Jurnal | O‘zbekiston fizika jurnali |
| Nashr sanasi | 2022-06-07 |
| Jild | 24 |
| Son | 2 |
| Betlar | 81-89 |
| Til | Ingliz |
| DOI | 10.52304/.v24i2.324 |
DOI: 10.52304/.v24i2.324 · Maqolaning asl sahifasi
фото- метрическая система, фотометрия, обработка оцифрованных пластинок, звездные каталоги, photometric system, photometry, digitized plate processing, stellar catalogs
The energy characteristics of the octupole states of the 238U nucleus are studied within the framework of a phenomenological model that takes into account the Coriolis mixing of the states of rotational bands. The…
Recently, much attention has been paid to solar cells based on inorganic perovskite materials. However, the quality and thickness of perovskite films are still unsatisfactory due to the limited solubility of the…
Using the Kubo-Greenwood formula in the approximation of Davis-Mott, the region of exponential absorption of amorphous semiconductors has been theoretically investigated. Analytical expressions for partial absorption…
In this work, methods for determining the radiochemical purity and specific activity of the radionuclide lutetium-177 in the form of chloride are considered. These indicators were determined by thin layer and paper…
In this work, a liquid aniline was studied in a pure and aqueous solution using experimental and theoretical calculations. Using Raman spectra, the region of 100–3200 cm−1 was analyzed, and blue shift and red shift were…
In this work, we consider the experimental results of studies of the surface structure of ZnO crystals under electron irradiation using the total current spectroscopy technique. The objects of research were the wide-gap…
The optimal geometric parameters and potential energies of the gauche- and trans-conformers of the ethanol molecule have been calculated by quantum chemical modeling method. Using the optimal structures of conformers…
In this work, we investigated the effect of gamma-radiation of various doses on surface morphology, molecular vibrations, and polyketone structures. After irradiation of polyketone with gamma-quanta with a dose of…
In this work, the intermolecular interactions of diacetyl and water molecules were studied using the vibration spectrum. The Raman scattering spectra obtained in the range of 500– 2000 cm−1 were analyzed and compared…
In present work the experimental results of the specific total alpha activity of natural alphaemitting radionuclide from ancient and standard bones as well as soils from the places of detection, measured by the…