Type Ibn Supernovae Show Photometric Homogeneity and Spectral Diversity at Maximum Light

Hosseinzadeh, G. and Arcavi, I. and Valenti, S. and McCully, C. and Howell, D. A. and Johansson, J. and Sollerman, J. and Pastorello, A. and Benetti, S. and Cao, Y. and Cenko, S. B. and Clubb, K. I. and Corsi, A. and Duggan, G. and Elias-Rosa, N. and Filippenko, A. V. and Fox, O. D. and Fremling, C. and Horesh, A. and Karamehmetoglu, E. and Kasliwal, M. and Marion, G. H. and Ofek, E. and Sand, D. and Taddia, F. and Zheng, W. and Fraser, M. and Gal-Yam, A. and Inserra, C. and Laher, R. and Masci, F. and Rebbapragada, U. and Smartt, S. and Smith, K. W. and Sullivan, M. and Surace, J. and Woźniak, P.

ApJ