| Affiliation: | 1. School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, Anhui Province, PR China;2. College of Science/Department of Physics & NAOC-GZU-Sponsored Center for Astronomy Research, GuiZhou University, Guiyang 550025, PR China;3. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, PR China;1. Harish Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211019, India;2. S. N. Bose National Centre for Basic Sciences, Block JD Sector III, Salt Lake City, Kolkata 700098, India;3. Sarojini Naidu College for Women, Kolkata 700028, India;4. Department of Physics, The University of Mysore, Mysore 6, India;5. Ferguson College, Pune 411004, India;6. Nicolaus Copernicus Astronomical Center, Bartycka 18, 00-716 Warsaw, Poland;7. INAF – Osservatorio Astronomico di Trieste, Via G.B. Tiepolo 11, I-34143 Trieste, Italy;8. Department of Physics, The College of New Jersey, P.O. Box 7718, Ewing, NJ 08628, USA;9. Astronomical Institute of the Academy of Sciences in Czech Republic, Boˇcní II 1401, CZ-141 31 Praha 4 Spořilov, Czech Republic;10. Department of Theoretical Physics, Indian Association of the Cultivation of Science, 2A& 2B Raja S. C. Mullick Road, Kolkata 700032, India |
