Zobrazeno 1 - 10
of 28
pro vyhledávání: '"SHUHRAT A. EHGAMBERDIEV"'
Autor:
Li-xian Shen, Ali Esamdin, Cheng-long Lv, Hao-zhi Wang, Tao-zhi Yang, Rivkat Karimov, Shuhrat A. Ehgamberdiev, Hu-biao Niu, Jin-zhong Liu
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 1, p 47 (2024)
We investigated the pulsating behavior of KIC 10855535 using Kepler 4 yr long-cadence data. Two independent frequencies were detected: a pulsation frequency F0 = 17.733260(5) day ^−1 and a low frequency f _8 = 0.412643(8) day ^−1 . We identify F0
Externí odkaz:
https://doaj.org/article/ee4756f14759440e9aee5e6b8ffbea9e
Autor:
Artem Y. Shikhovtsev, Alexander V. Kiselev, Pavel G. Kovadlo, Evgeniy A. Kopylov, Kirill E. Kirichenko, Shuhrat A. Ehgamberdiev, Yusufjon A. Tillayev
Publikováno v:
Atmosphere, Vol 15, Iss 1, p 38 (2023)
In the present article, we study the possibilities of machine learning for the estimation of seeing at the Maidanak Astronomical Observatory (38∘40′24″ N, 66∘53′47″ E) using only Era-5 reanalysis data. Seeing is usually associated with th
Externí odkaz:
https://doaj.org/article/0edccfb6630a4dd5b5f814746bb945ed
Autor:
Megan Masterson, Erin Kara, Dheeraj R. Pasham, Daniel J. D’Orazio, Dominic J. Walton, Andrew C. Fabian, Matteo Lucchini, Ronald A. Remillard, Zaven Arzoumanian, Otabek Burkhonov, Hyeonho Choi, Shuhrat A. Ehgamberdiev, Elizabeth C. Ferrara, Muryel Guolo, Myungshin Im, Yonggi Kim, Davron O. Mirzaqulov, Gregory S. H. Paek, Hyun-Il Sung, Joh-Na Yoon
Publikováno v:
The Astrophysical Journal Letters, Vol 945, Iss 2, p L34 (2023)
The nuclear transient AT2019cuk/Tick Tock/SDSS J1430+2303 has been suggested to harbor a supermassive black hole (SMBH) binary near coalescence. We report results from high-cadence NICER X-ray monitoring with multiple visits per day from 2022 January
Externí odkaz:
https://doaj.org/article/f23a2a84a71241c09800a90625f5cf17
Autor:
Zhou Fan, Gang Zhao, Wei Wang, Jie Zheng, Jingkun Zhao, Chun Li, Yuqin Chen, Haibo Yuan, Haining Li, Kefeng Tan, Yihan Song, Fang Zuo, Yang Huang, Ali Luo, Ali Esamdin, Lu Ma, Bin Li, Nan Song, Frank Grupp, Haibin Zhao, Shuhrat A. Ehgamberdiev, Otabek A. Burkhonov, Guojie Feng, Chunhai Bai, Xuan Zhang, Hubiao Niu, Alisher S. Khodjaev, Bakhodir M. Khafizov, Ildar M. Asfandiyarov, Asadulla M. Shaymanov, Rivkat G. Karimov, Qudratillo Yuldashev, Hao Lu, Getu Zhaori, Renquan Hong, Longfei Hu, Yujuan Liu, Zhijian Xu
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 268, Iss 1, p 9 (2023)
The Stellar Abundances and Galactic Evolution Survey (SAGES) of the northern sky is a specifically designed multiband photometric survey aiming to provide reliable stellar parameters with accuracy comparable to those from low-resolution optical spect
Externí odkaz:
https://doaj.org/article/837f84bde9324ff29c0cc595cd4f4a55
Autor:
IGOR E. MOLOTOV, YURIJ N. KRUGLY, LEONID V. ELENIN, THOMAS SCHILDKNECHT, VASILIJ V. RUMYANTSEV, RAGULI YA. INASARIDZE, VOVA R. AIVAZYAN, GIVI V. KAPANADZE, LLUIS R. CANALS, FILIPPO GRAZIANI, PAOLO TEOFILATTO, SHUHRAT A. EHGAMBERDIEV, OTABEK A. BURKHONOV, EKATERINA D. CHORNAYA, ANTON V. KOCHERGIN, YEHIA A. ABDEL-AZIZ, AHMED M. ABDELAZIZ, VLADIMIR V. KOUPRIANOV, MIKHAIL V. ZAKHVATKIN, VICTOR A. STEPANYANTS, INNA V. REVA, ALEXANDER V. SEREBRYANSKIY, SERGEI E. SCHMALZ, IGOR V. NIKOLENKO
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 93, Iss suppl 1 (2021)
Abstract International Scientific Optical Network (ISON) is an open international voluntary project specializing in observations of the near-Earth space objects. Observatories collaborating with ISON provide the global coverage and successfully combi
Externí odkaz:
https://doaj.org/article/1c56e00b6d294d7cb5c66bf512eaad3d
Autor:
Artem Yu. Shikhovtsev, Pavel G. Kovadlo, Evgeniy A. Kopylov, Mansur A. Ibrahimov, Shuhrat A. Ehgamberdiev, Yusufjon A. Tillayev
Publikováno v:
Atmosphere, Vol 12, Iss 12, p 1614 (2021)
Knowledge of the turbulence spectra is of interest for describing atmospheric conditions as applied to astronomical observations. This article discusses the deformations of the turbulence spectra with heights in a wide range of scales at the sites of
Externí odkaz:
https://doaj.org/article/76900c416d094df19c2aadc8aad81875
Autor:
Shuhrat Abdumannapovich, Ehgamberdiev1,2 (AUTHOR), Qudratillo Khabibullaevich, Yuldoshev2 (AUTHOR), Sobir Jurakobilovich, Turaev1,2 (AUTHOR) sobr8488@mail.ru, Zhao, Jianhai3 (AUTHOR), Yang, Meiting3 (AUTHOR), Tang, Zhenghong3 (AUTHOR), Yu, Yong3 (AUTHOR)
Publikováno v:
Journal for the History of Astronomy. Nov2023, Vol. 54 Issue 4, p456-468. 13p.
Autor:
Weili Lin, Xiaofeng Wang, Lin Yan, Avishay Gal-Yam, Jun Mo, Thomas G. Brink, Alexei V. Filippenko, Danfeng Xiang, Ragnhild Lunnan, Weikang Zheng, Peter Brown, Mansi Kasliwal, Christoffer Fremling, Nadejda Blagorodnova, Davron Mirzaqulov, Shuhrat A. Ehgamberdiev, Han Lin, Kaicheng Zhang, Jicheng Zhang, Shengyu Yan, Jujia Zhang, Zhihao Chen, Licai Deng, Kun Wang, Lin Xiao, Lingjun Wang
Superluminous supernovae are among the most energetic stellar explosions in the Universe, but their energy sources remain an open question. Here we present long-term observations of one of the closest examples of the hydrogen-poor subclass (SLSNe-I),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d5e595b3b99883aa0f92348978abfda
http://arxiv.org/abs/2304.10416
http://arxiv.org/abs/2304.10416
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems. 8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3209df3d7055a1ba2e21b8b68101ac8
https://doi.org/10.1117/1.jatis.8.4.047002
https://doi.org/10.1117/1.jatis.8.4.047002
Autor:
Gaobo Xi, Xiaofeng Wang, Wenxiong Li, Jun Mo, Jujia Zhang, Jialian Liu, Zhihao Chen, Alexei V Filippenko, Weikang Zheng, Thomas G Brink, Xinghan Zhang, Hanna Sai, Shuhrat A Ehgamberdiev, Davron Mirzaqulov, Jicheng Zhang
We present extensive optical photometric and spectroscopic observations for the nearby Type Ia supernova (SN Ia) 2019ein, spanning the phases from $\sim 3$ days to $\sim 330$ days after the explosion. This SN Ia is characterized by extremely fast exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d0147b1ab9cd9c87cc616375fada553
http://arxiv.org/abs/2209.14731
http://arxiv.org/abs/2209.14731