Zobrazeno 1 - 10
of 32 207
pro vyhledávání: '"Ak, T."'
Autor:
Khalid, Neha Andaleeb1 muhammad.saeed@umt.edu.pk, Saeed, Muhammad1 f2022265012@umt.edu.pk, Smarandache, Florentin2 smarand@unm.edu
Publikováno v:
Neutrosophic Sets & Systems. 2023, Vol. 58, p443-463. 21p.
Autor:
GLABISZ, GRZEGORZ
Publikováno v:
Kwartalnik Historyczny; 2022, Vol. 129 Issue 4, p875-892, 18p
A detailed analysis of ground-based CCD UBV photometry and space-based Gaia Data Release 3 (DR3) data for the open clusters King 6 and NGC 1605 was performed. Using the pyUPMASK algorithm on Gaia astrometric data to estimate cluster membership probab
Externí odkaz:
http://arxiv.org/abs/2311.00054
The spatial distribution, Galactic model parameters and luminosity function of cataclysmic variables (CVs) are established using re-estimated trigonometric parallaxes of {\it Gaia} DR3. The data sample of 1,587 CVs in this study is claimed to be suit
Externí odkaz:
http://arxiv.org/abs/2302.11568
We present results from quasi-simultaneous multiwavelength observations of the Galactic black hole X-ray transient MAXI J1820$+$070 during the decay of the 2018 outburst and its entire subsequent mini-outburst in March 2019. We fit the X-ray spectra
Externí odkaz:
http://arxiv.org/abs/2206.02461
This study calculated astrophysical parameters, as well as kinematic and galactic orbital parameters, of the open clusters NGC 1664 and NGC 6939. The work is based on CCD UBV and Gaia photometric and astrometric data from ground and space-based obser
Externí odkaz:
http://arxiv.org/abs/2202.11126
We analysed the open clusters Czernik 2 and NGC 7654 using CCD UBV photometric and Gaia Early Data Release 3 (EDR3) photometric and astrometric data. Structural parameters of the two clusters were derived, including the physical sizes of Czernik 2 be
Externí odkaz:
http://arxiv.org/abs/2107.03462
Autor:
Yontan, T., Bilir, S., Ak, T., Akbulut, B., Canbay, R., Banks, T., Paunzen, E., Ak, S., Bostanci, Z. F.
We present reddening, photometric metallicity, age and distance estimates for the Frolov 1 and NGC 7510 open clusters based on CCD UBV photometric and Gaia data. Photometric observations were collected using the 1-m telescope of the T\"UB\.ITAK Natio
Externí odkaz:
http://arxiv.org/abs/2012.12269
Autor:
Kolesnikov, I. A.1 (AUTHOR) ia.kolesnikov@mail.ru, Sharofov, A. Kh.1 (AUTHOR)
Publikováno v:
Siberian Mathematical Journal. Sep2020, Vol. 61 Issue 5, p818-829. 12p.