| Affiliation: | 1. National Research Institute of Astronomy and Geophysics (NRIAG), Helwan 11421, Cairo, Egypt;2. Astronomy, Space Science and Meteorology Department, Faculty of Science, Cairo University, Giza 12613, Egypt;3. Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, Campus Morelia, A.P. 3–72, Michoacán C.P. 58089, México;4. Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, India;2. Department of Ophthalmology, Queen''s University, Kingston, Ont.;1. Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, Kunming 650216, China;2. National Astronomical Research Institute of Thailand, Ministry of Higher Education Science Research and Innovation, 260 Moo 4, T. Donkaew, A. Maerim, Chiangmai, 50180, Thailand;3. Guizhou Provincial Key Laboratory of Radio Data Processing, School of Physics and Electronic Sciences, Guizhou Education University, Guiyang 550001, China;4. Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, China;5. Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, P.R. China;6. University of Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, Beijing 100049, China;1. Mathematics Department, Faculty of Science, Taibah University, Saudi Arabia;2. Astronomy Department, National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt;3. Department of Mathematics, Institute of Applied Sciences & Humanities, GLA University, Mathura 281406, Uttar Pradesh, India |
