Zobrazeno 1 - 10
of 41
pro vyhledávání: '"V. S. Akhmetov"'
Autor:
V. M. Andruk, L. K. Pakuliak, I. Eglitis, Q. Yuldoshev, A. Mullo-Abdolov, S. V. Shatokhina, O. M. Yizhakevych, Yu. I. Protsyuk, H. Relke, V. S. Akhmetov, M. M. Muminov, Sh. A. Ehgamberdiev, G. Kokhirova
Publikováno v:
Odessa Astronomical Publications, Vol 32, Iss 0, Pp 185-188 (2019)
The plan of the photographic survey of the northern sky (FON) was proposed in 1976 in Golosiiv ob- servatory (now MAO NAS of Ukraine) by I. Kolchinsky and A. Onegina. The final project of the Compiled FONAC catalog (FON Astrographic Catalog) is based
Externí odkaz:
https://doaj.org/article/e5d29657414543d197a93e16f67eb34b
Publikováno v:
Odessa Astronomical Publications, Vol 31, Iss 0, Pp 199-203 (2018)
The comparison results of three catalogues (FON-KIEV, FON-KITAB and FON-DUSHANBE) were received as result of work of the FON project and presented in the paper. The data of zero zone (from -2 to 2 degrees of declination) from the mentioned catalogues
Externí odkaz:
https://doaj.org/article/0bea592191484522a572dabc5df95e79
Publikováno v:
Odessa Astronomical Publications, Vol 32, Iss 0, Pp 21-23 (2019)
We present the results of applying deep convolutional neural network to the images of redshift-limited ( z < 0 . 1) sample of ∼ 300000 galaxies from the SDSS DR9. We aimed to classify galaxies into the two classes: Elliptical and Spiral. To create
Externí odkaz:
https://doaj.org/article/9143f6e651544192ab60c62660ac4a6d
Publikováno v:
Odessa Astronomical Publications, Vol 32, Iss 0, Pp 178-180 (2019)
The arrivals of the new more accuracy reference catalogues and also development of new meth- ods and approaches for reduction astrometric data give the new life for photographic plates archives. Gaia DR2 is not only a giant step in the astrometric ac
Externí odkaz:
https://doaj.org/article/dc27e7bab2644626af63b33aab2bdaf7
Autor:
V. S. Akhmetov
Publikováno v:
Odessa Astronomical Publications, Vol 29, Iss 0, Pp 116-119 (2016)
The method described by Wielen is very efficient provided the data under comparison are independent quantities. In this case, dispersion of position or magnitude differences is equal to the sum of their dispersions, because the index of correlation b
Externí odkaz:
https://doaj.org/article/9356511e0f9d4cb8b11922f74a7a335f
Autor:
A. M. Dmytrenko, V. S. Akhmetov
Publikováno v:
Odessa Astronomical Publications, Vol 30, Iss 0, Pp 163-165 (2017)
This article presents the main results of the initial processing of some of the astronomical images obtained from the archive of the digitized photographics survey of the whole sky SuperCOSMOS. Using of the median filtering and gausian convolution pr
Externí odkaz:
https://doaj.org/article/c65135375639484886b56966e0bf2a18
Publikováno v:
Odessa Astronomical Publications, Vol 28, Iss 2, Pp 154-157 (2016)
Based on the Ogorodnikov-Milne model, we analyze the proper motions of XPM2, UCAC4 and PPMXL stars. To estimate distances to the stars we used the method of statistical parallaxes herewith the random errors of the distance estimations do not exceed 1
Externí odkaz:
https://doaj.org/article/5fbebd3602c441cab98c00c319460175
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 521:4247-4256
We present the results of determining the coordinates of the vertices of various stellar systems, the centroids of which are located in the Galactic plane. To do this, the positions, parallaxes, proper motions, and radial velocities of red giants and
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 518:2761-2774
We present the results of a kinematic analysis of red giants and subgiants whose centroids are in the plane of our Galaxy. For this, the positions, parallaxes, proper motions, and radial velocities of these stars from the $Gaia$ EDR3 catalog were use
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 494:1430-1447
We aim at analysis of kinematics of main-sequence stars from the GaiaDR2 and PMA catalogues as well as comparison of kinematic parameters derived from their proper motions. We decompose the stellar velocity field on to a set of vector spherical harmo