| Institution: | 1. Department of Physics, DSB Campus, Kumaun University, Nainital-263002, Uttarakhand, India;2. Aryabhatta Research Institute of Observational Sciences, Manora Peak Nainital 263002, India;1. INAF- Catania Astrophysical Observatory, via S.Sofia 78, Catania, I-95123, Italy;2. Klein Karoo Observatory, Western Cape, South Africa;3. South African Astronomical Observatory, P.O. Box 9, Observatory, 7935, South Africa;4. Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE, UK;1. Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, PR China;2. Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, PR China;3. Graduate University of Chinese Academy of sciences, Beijing, PR China;1. Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China;2. Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, China;3. University of the Chinese Academy of Sciences, Beijing 100049, China;1. Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain;2. Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain |
