Where to Search for Supermassive Binary Black Holes by Paola Marziani, Edi Bon, Natasa Bon, Mauro D’Onofrio

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Ratios of forbidden [OIII] λλ4959,5007 and [NII] λλ6548,6583 lines in nearby narrow emission line galaxies by Natas̆a Bon, Edi Bon, Paola Marziani, Luka C̆. Popović

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Editorial: Frontiers in astronomy and space sciences: a decade of discovery and advancement-10th anniversary conference by Julio Navarro, Alberto G. Fairén, Alberto G. Fairén, Didier Fraix-Burnet, Steve B. Howell, Paola Marziani, Cristina Puzzarini, Miriam Rengel

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Monitoring AGNs with Hβ Asymmetry. V. Long-term Variation and Evolution of the Broad Hβ Emission-line Profiles by Feng-Na Fang, Pu Du, Michael S. Brotherton, Jacob N. McLane, T. E. Zastrocky, Kianna A. Olson, Dong-Wei Bao, Shuo Zhai, Hua-Rui Bai, Yi-Xin Fu, Bi-Xuan Zhao, Yong-Jie Chen, Yue-Chang Peng, Yu-Yang Songsheng, Yan-Rong Li, Chen Hu, Ming Xiao, Bo-Wei Jiang, Yi-Lin Wang, Hao Zhang, Yu Zhao, Jia-Qi Feng, Yi-Peng Zhao, David H. Kasper, William T. Chick, My L. Nguyen, Jaya Maithil, H. A. Kobulnicky, D. A. Dale, Derek Hand, C. Adelman, Z. Carter, G. M. Murphree, M. Oeur, S. Schonsberg, T. Roth, Hartmut Winkler, Paola Marziani, Mauro D’Onofrio, Keith Horne, Luis C. Ho, Jin-Ming Bai, Jian-Min Wang, (MAHA Collaboration)

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