Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Aysegul Tumer"'
Autor:
Samantha Creech, Daniel R. Wik, Steven Rossland, Ayşegül Tümer, Ka-Wah Wong, Stephen A. Walker
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 33 (2024)
As the brightest galaxy cluster in the X-ray sky, Perseus is an excellent target for studying the intracluster medium (ICM), but until recently, its active galactic nucleus (AGN) made studies of the diffuse emission near its center nearly impossible
Externí odkaz:
https://doaj.org/article/45c91b339a4c4da4a61c83764d925b41
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 94 (2024)
Observations of galaxy cluster mergers provide insights on the particle acceleration and heating mechanisms taking place within the intracluster medium. Mergers form shocks that propagate through the plasma, which result in shock/cold fronts in the X
Externí odkaz:
https://doaj.org/article/5ae2631a286747fc85f827b36dfe8cf3
Autor:
Cicely Potter, Ayşegül Tümer, Qian H. S. Wang, Daniel R. Wik, Ben J. Maughan, Gerrit Schellenberger
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 2, p 112 (2023)
Galaxy clusters are the most recently formed and most massive, gravitationally bound structures in the Universe. The number of galaxy clusters formed is highly dependent on cosmological parameters, such as the dark matter density, σ _8 , and Ω _m .
Externí odkaz:
https://doaj.org/article/8ec0b54ebb244c6799ef68ae14c59270
Autor:
Randall A. Rojas Bolivar, Daniel R. Wik, Ayşegül Tümer, Fabio Gastaldello, Julie Hlavacek-Larrondo, Paul Nulsen, Valentina Vacca, Grzegorz Madejski, Ming Sun, Craig L. Sarazin, Jeremy Sanders, Damiano Caprioli, Brian Grefenstette, Niels-Jorgen Westergaard
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 1, p 76 (2023)
Observations from past missions such as RXTE and Beppo-SAX suggested the presence of inverse Compton (IC) scattering at hard X-ray energies within the intracluster medium of some massive galaxy clusters. In subsequent years, observations by, e.g., Su
Externí odkaz:
https://doaj.org/article/e87b7b7c99a349b79e50b0d480cb3114
Autor:
Ayşegül Tümer, Daniel R. Wik, Xiaoyuan Zhang, Duy N. Hoang, Massimo Gaspari, Reinout J. van Weeren, Lawrence Rudnick, Chiara Stuardi, François Mernier, Aurora Simionescu, Randall A. Rojas Bolivar, Ralph Kraft, Hiroki Akamatsu, Jelle de Plaa
Publikováno v:
The Astrophysical Journal, Vol 942, Iss 2, p 79 (2023)
Mergers of galaxy clusters are the most energetic events in the universe, driving shock and cold fronts, generating turbulence, and accelerating particles that create radio halos and relics. The galaxy cluster CL 0217+70 is a remarkable late-stage me
Externí odkaz:
https://doaj.org/article/63dc11da1715452e8b057ca011fb4f58