PoS - Proceedings of Science
Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - GAD - Gamma Ray Direct
Analyzing the Fermi Bubbles with DArk Matter Particle Explorer
Presented by Z.Q. Shen*, K.K. Duan, Z.L. Xu, X. Li and Q. Yuan  on behalf of F. Alemanno, Q. An, P. Azzarello, F.C.T. Barbato, P. Bernardini, X.J. Bi, M.S. Cai, E. Casilli, E. Catanzani, J. Chang, D.Y. Chen, J.L. Chen, Z.F. Chen, M.Y. Cui, T.S. Cui, Y.X. Cui, H.T. Dai, A. De Benedittis, I. De Mitri, F. de Palma, Q. Ding, I. Di Santo, T.K. Dong, Z.X. Dong, G. Donvito, D. Droz, J.L. Duan, D. D'urso, R.R. Fan, Y.Z. Fan, F. Fang, K. Fang, C.Q. Feng, L. Feng, P. Fusco, V. Gallo, M. Gao, F. Gargano, K. Gong, Y.Z. Gong, D.Y. Guo, J.H. Guo, S.X. Han, Y.M. Hu, G.S. Huang, X.Y. Huang, Y.Y. Huang, M. Ionica, W. Jiang, J. Kong, A. Kotenko, D. Kyratzis, S.J. Lei, W.L. Li, W.H. Li, X.Q. Li, Y.M. Liang, C.M. Liu, H. Liu, J. Liu, S.B. Liu, Y. Liu, F. Loparco, C.N. Luo, M. Ma, P.X. Ma, T. Ma, X.Y. Ma, G. Marsella, M.N. Mazziotta, D. Mo, X.Y. Niu, X. Pan, A. Parenti, W.X. Peng, X.Y. Peng, C. Perrina, R. Qiao, J.N. Rao, A. Ruina, M.M. Salinas, G.Z. Shang, W.H. Shen, Z.T. Shen, L. Silveri, J.X. Song, M. Stolpovskiy, H. Su, M. Su, H. Sun, Z.Y. Sun, A. Surdo, X.J. Teng, A. Tykhonov, H. Wang, J.Z. Wang, L.G. Wang, S. Wang, S.X. Wang, X.L. Wang, Y.F. Wang, Y. Wang, Y.Z. Wang, D.M. Wei, J.J. Wei, Y.F. Wei, D. Wu, J. Wu, L.B. Wu, S.S. Wu, X. Wu, Z.Q. Xia, E.H. Xu, H.T. Xu, Z.H. Xu, Z.Z. Xu, G.F. Xue, H.B. Yang, P. Yang, Y.Q. Yang, H.J. Yao, Y.H. Yu, G.W. Yuan, C. Yue, J.J. Zang, S.X. Zhang, W.Z. Zhang, Y. Zhang, Y.P. Zhang, Y. Zhang, Y.J. Zhang, Y.Q. Zhang, Y.L. Zhang, Z. Zhang, Z.Y. Zhang, C. Zhao, H.Y. Zhao, X.F. Zhao and C.Y. Zhouet al. (click to show)
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Pre-published on: July 26, 2021
Published on: March 18, 2022
Abstract
The Fermi bubbles are two large structures above and below the Galactic Plane. They are first discovered by Fermi-LAT and thought to be related to the jet or the wind from the Galactic center. The DArk Matter Particle Explorer (DAMPE) is a space-borne high energy particle telescope aiming at measuring cosmic rays and photons in a broad energy range. In this work, we use 4.8 years of DAMPE photon data to search for the emission from the Fermi Bubbles. We calculate the TS values of the lobes and the significance of its curved spectrum. The obtained spectral parameters are then compared with those from the Fermi-LAT. We also search for the emission from the cocoon in the southeast part of lobes. Since the Galactic diffuse emission (GDE) model is a major source of systematic uncertainty, we also switch to the GDE models calculated with Galprop and evaluate the influence.
DOI: https://doi.org/10.22323/1.395.0640
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