PHOTOMETRY OF THE GRAVITATIONALLY LENSED QUASAR GRAL J024848.7+191331
Keywords:
Gravitational lens quasar: GRAL J024848.7 191331
Abstract
We presents the results of a photometric research of the four-component of the gravitational lensed quasar GRAL J024848.7+191331, which was observed at the Maidanak Observatory in 2021-2022. The light curves of the system and individual components are shown; there are no signs of microlensing. The values of time delay between the three main pairs of object components are calculated.
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2. P. Schneider, J. Ehlers, E. Falco. Gravitational lenses. Astronomy and Astrophysics Library, pp. XIV, 560 (1993).
3. F. Ostrovski, R.G. McMahon,A.J. Connolly, C.A. Lemon, et al. Monthly Notices of the Royal Astronomical Society 465, 4325–4334 (2017).
4. L. Delchambre, A. Krone-Martins, O. Wertz, C. Ducourant, L. Galluccio et al. Astronomy & Astrophysics, 622, A165 (2019)
5. A. J. Shajib, S. Birrer, T. Treu, M.W. Auger, A. Agnello, et al. Monthly Notices of the Royal Astronomical Society 483, 5649–5671 (2019)
6. D. Stern, S.G. Djorgovski, A. Krone-martins, D. Sluse, et al., The Astrophysical Journal, 921, 42 (2020).
7. T. Akhunov, O. Wertz, A. Elyiv, et al., Monthly Notices Royal Astron. Soc. 465, 3607 (2017)
8. D. Tody, Proc. SPIE, 627, 733 (1986)
9. D. Tody, 1993, in ASP Conf. Ser. 52, Astronomical Data Analysis Software and Systems II, ed. R. J. Hanisch, R. J. V. Brissenden, & J. Barnes (San Francisco, CA: ASP), 173
10. E.R. Gaynullina, R.W. Schmidt, T. Akhunov, O. Burkhonov, S. Gottlöber, K. Mirtadjieva, S.N. Nuritdinov, I. Tadjibaev, J. Wambsganss, L. Wisotzki. Astronomy & Astrophysics 440, Issue 1, 53-58 (2005).
11. R. Gil-Merino, L. Wisotzki, J. Wambsganss. Astronomy & Astrophysics 381, 428 (2002).
12. V. Vakulik, R. Schild, V. Dudinov, S. Nuritdinov, V. Tsvetkova, O. Burkhonov, and T. Akhunov. A&A 447, 905–913 (2006).
13. Т.А. Ахунов. Узбекский физический журнал 20, 275-282 (2018)
Published
2024-03-29
How to Cite
Nigina ALIMOVA, Ta’lat AXUNOV, Dilshod BEKOV, & Otabek BURXONOV. (2024). PHOTOMETRY OF THE GRAVITATIONALLY LENSED QUASAR GRAL J024848.7+191331. News of the NUUz, 3(3.1), 483-487. https://doi.org/10.69617/uzmu.v3i3.1.1912
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