Zobrazeno 1 - 10
of 727
pro vyhledávání: '"Forman, P. R."'
Autor:
Machacek, Marie E., Jones, Christine, Kraft, Ralph P., Forman, William R., Roediger, Elke, Sheardown, Alex, Wan, Jenny T.
Publikováno v:
The Astrophysical Journal, 958, (2023), 93
Analyses of major group mergers are key to understanding the evolution of large-scale structure in the Universe and the microphysical properties of the hot gas in these systems. We present imaging and spectral analyses of deep Chandra observations of
Externí odkaz:
http://arxiv.org/abs/2410.06196
Autor:
Lyskova, N., Churazov, E., Khabibullin, I., Bikmaev, I. F., Burenin, R. A., Forman, W. R., Khamitov, I. M., Rajpurohit, K., Sunyaev, R., Jones, C., Kraft, R., Zaznobin, I., Gorbachev, M. A., Suslikov, M. V., Gumerov, R. I., Sakhibullin, N. A.
Massive clusters of galaxies are very rare in the observable Universe. Even rarer are mergers of such clusters observed close to pericenter passage. Here, we report on one such case: a massive (~ $10^{15}\,M_\odot$) and hot (kT ~ 10 keV) cluster CL02
Externí odkaz:
http://arxiv.org/abs/2409.07856
Based on a proposal to observe 18 bright radio sources from the SMS4 catalog with the Neil Gehrels Swift Observatory (hereafter Swift), we obtained X-ray observations of 17 targets (one target was not observed). Following up our first paper that disc
Externí odkaz:
http://arxiv.org/abs/2407.06024
Autor:
Kovacs, Orsolya E., Bogdan, Akos, Natarajan, Priyamvada, Werner, Norbert, Azadi, Mojegan, Volonteri, Marta, Tremblay, Grant R., Chadayammuri, Urmila, Forman, William R., Jones, Christine, Kraft, Ralph P.
While supermassive black holes (BHs) are widely observed in the nearby and distant universe, their origin remains debated with two viable formation scenarios with light and heavy seeds. In the light seeding model, the first BHs form from the collapse
Externí odkaz:
http://arxiv.org/abs/2403.14745
Autor:
Whyley, Arthur, Randall, Scott W., Clarke, Tracy E., van Weeren, Reinout J., Rajpurohit, Kamlesh, Forman, William R., Edge, Alastair C., Blanton, Elizabeth L., Lovisari, Lorenzo, Intema, Huib T.
Ultra-steep spectrum (USS) radio sources with complex filamentary morphologies are a poorly understood subclass of diffuse radio source found in galaxy clusters. They are characterised by power law spectra with spectral indices less than -1.5, and ar
Externí odkaz:
http://arxiv.org/abs/2402.04876
Autor:
Mernier, François, Su, Yuanyuan, Markevitch, Maxim, Zhang, Congyao, Simionescu, Aurora, Rasia, Elena, Lin, Sheng-Chieh, Zhuravleva, Irina, Sarkar, Arnab, Kraft, Ralph P., Ogorzalek, Anna, Ayromlou, Mohammadreza, Forman, William R., Jones, Christine, Bregman, Joel N., Ettori, Stefano, Dolag, Klaus, Biffi, Veronica, Churazov, Eugene, Sun, Ming, ZuHone, John, Bogdán, Ákos, Khabibullin, Ildar I., Werner, Norbert, Truong, Nhut, Chakraborty, Priyanka, Walker, Stephen A., Vogelsberger, Mark, Pillepich, Annalisa, Mirakhor, Mohammad S.
Synthesized in the cores of stars and supernovae, most metals disperse over cosmic scales and are ultimately deposited well outside the gravitational potential of their host galaxies. Since their presence is well visible through their X-ray emission
Externí odkaz:
http://arxiv.org/abs/2310.04499
Autor:
Zhang, Congyao, Zhuravleva, Irina, Markevitch, Maxim, ZuHone, John, Mernier, François, Biffi, Veronica, Bogdán, Ákos, Chakraborty, Priyanka, Churazov, Eugene, Dolag, Klaus, Ettori, Stefano, Forman, William R., Jones, Christine, Khabibullin, Ildar, Kilbourne, Caroline, Kraft, Ralph, Lau, Erwin T., Lin, Sheng-Chieh, Nagai, Daisuke, Nelson, Dylan, Ogorzałek, Anna, Rasia, Elena, Sarkar, Arnab, Simionescu, Aurora, Su, Yuanyuan, Vogelsberger, Mark, Walker, Stephen
High-resolution spectroscopy in soft X-rays will open a new window to map multiphase gas in galaxy clusters and probe physics of the intracluster medium (ICM), including chemical enrichment histories, circulation of matter and energy during large-sca
Externí odkaz:
http://arxiv.org/abs/2310.02225
Autor:
Massaro, F., White, S. V., Paggi, A., Jimenez-Gallardo, A., Madrid, J. P., Mazzucchelli, C., Forman, W. R., Capetti, A., Leto, C., Garcia-Perez, A., Cheung, C. C., Chavushyan, V., Nesvadba, N. P. H., Andruchow, I., Pena-Herazo, H. A., Sani, E., Grossova, R., Reynaldi, V., Kraft, R. P., Balmaverde, B., Cellone, S.
Publikováno v:
The Astrophysical Journal Supplement Series, 268, 32 (2023)
We recently constructed the G4Jy-3CRE, a catalog of extragalactic radio sources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing the number of powerful radio galaxies and quasars with similar selection criteria to those of the revise
Externí odkaz:
http://arxiv.org/abs/2309.10956
Autor:
Hu, Zhensong, Su, Yuanyuan, Li, Zhiyuan, Hess, Kelley M., Kraft, Ralph P., Forman, William R., Nulsen, Paul E. J., Sridhar, Sarrvesh S., Stroe, Andra, Baek, Junhyun, Chung, Aeree, Grupe, Dirk, Chen, Hao, Irwin, Jimmy A., Jones, Christine, Randall, Scott W., Roediger, Elke
To understand the formation and growth of supermassive black holes (SMBHs) and their co-evolution with host galaxies, it is essential to know the impact of environment on the activity of active galactic nuclei (AGN). We present new Chandra X-ray obse
Externí odkaz:
http://arxiv.org/abs/2308.12565
Autor:
Massaro, F., White, S. V., Garcia-Perez, A., Jimenez-Gallardo, A., Capetti, A., Cheung, C. C., Forman, W. R., Mazzucchelli, C., Paggi, A., Nesvadba, N. P. H., Madrid, J. P., Andruchow, I., Cellone, S., Pena-Herazo, H. A., Grossova, R., Balmaverde, B., Sani, E., Chavushyan, V., Kraft, R. P., Reynaldi, V., Leto, C.
Publikováno v:
The Astrophysical Journal Supplement Series, 265, 32 (2023)
Since the early sixties, our view of radio galaxies and quasars has been drastically shaped by discoveries made thanks to observations of radio sources listed in the Third Cambridge catalog and its revised version (3CR). However, the largest fraction
Externí odkaz:
http://arxiv.org/abs/2308.10071