SN 2022ann: a Type Icn supernova from a dwarf galaxy that reveals helium in its circumstellar environment

K. W. Davis*, K. Taggart, S. Tinyanont, R. J. Foley, V. A. Villar, L. Izzo, C. R. Angus, M. J. Bustamante-Rosell, D. A. Coulter, N. Earl, D. Farias, J. Hjorth, M. E. Huber, D. O. Jones, P. L. Kelly, C. D. Kilpatrick, D. Langeroodi, H. Y. Miao, C. M. Pellegrino, E. Ramirez-RuizC. L. Ransome, S. Rest, M. R. Siebert, G. Terreran, I. M. Thornton, S. K. Yadavalli, G. R. Zeimann, K. Auchettl, C. R. Bom, T. G. Brink, J. Burke, Y. Camacho-Neves, K. C. Chambers, T. J.L. De Boer, L. Demarchi, A. V. Filippenko, L. Galbany, C. Gall, H. Gao, F. R. Herpich, D. A. Howell, W. V. Jacobson-Galan, S. W. Jha, A. Kanaan, N. Khetan, L. A. Kwok, Z. Lai, C. Larison, C. C. Lin, K. C. Loertscher, E. A. Magnier, C. Mccully, P. McGill, M. Newsome, E. Padilla Gonzalez, Y. C. Pan, A. Rest, J. Rho, T. Ribeiro, A. Santos, W. Schoenell, S. N. Sharief, K. W. Smith, R. J. Wainscoat, Q. Wang, Y. Zenati, W. Zheng

*Corresponding author for this work

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Physics