Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Forman, William"'
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:
Sarkar, Arnab, Andrade-Santos, Felipe, van Weeren, Reinout J., Kraft, Ralph P., Hoang, Duy N., Shimwell, Timothy W., Nulsen, Paul, Forman, William, Randall, Scott, Su, Yuanyuan, Chakraborty, Priyanka, Jones, Christine, Miller, Eric, Bautz, Mark, Grant, Catherine E.
We present a 368 ks deep Chandra observation of Abell~1240, a binary merging galaxy cluster at a redshift of 0.195 with two Brightest Cluster Galaxies (BCGs) may have passed each other 0.3 Gyr ago. Building upon previous investigations involving GMRT
Externí odkaz:
http://arxiv.org/abs/2401.02000
Autor:
Hou, Meicun, He, Lin, Hu, Zhensong, Li, Zhiyuan, Jones, Christine, Forman, William, Su, Yuanyuan, Wang, Jing, Ho, Luis C.
We present a systematic study of the putative hot gas corona around late-type galaxies (LTGs) residing in the Virgo cluster, based on archival Chandra observations. Our sample consists of 21 nearly edge-on galaxies representing a star formation rate
Externí odkaz:
http://arxiv.org/abs/2312.04050
Autor:
Ubertosi, Francesco, Schellenberger, Gerrit, O'Sullivan, Ewan, Vrtilek, Jan, Giacintucci, Simona, David, Laurence P., Forman, William, Gitti, Myriam, Venturi, Tiziana, Jones, Christine, Brighenti, Fabrizio
Recent observations of galaxy clusters and groups with misalignments between their central AGN jets and X-ray cavities, or with multiple misaligned cavities, have raised concerns about the jet - bubble connection in cooling cores, and the processes r
Externí odkaz:
http://arxiv.org/abs/2312.02283
Autor:
HyeongHan, Kim, Cho, Hyejeon, Jee, M. James, Wittman, David, Cha, Sangjun, Lee, Wonki, Finner, Kyle, Rajpurohit, Kamlesh, Brüggen, Marcus, Forman, William, Jones, Christine, van Weeren, Reinout, Botteon, Andrea, Lovisari, Lorenzo, Stroe, Andra, Domínguez-Fernández, Paola, O'Sullivan, Ewan, Vrtilek, Jan
Publikováno v:
2024 ApJ 962 100
The galaxy cluster Abell 746 (A746; $z$=0.214), featuring a double radio relic system, two isolated radio relics, a possible radio halo, disturbed V-shaped X-ray emission, and intricate galaxy distributions, is a unique and complex merging system. We
Externí odkaz:
http://arxiv.org/abs/2311.00643
Autor:
Khabibullin, Ildar, Galeazzi, Massimiliano, Bogdan, Akos, Cann, Jenna M., Churazov, Eugene, Dolag, Klaus, Drake, Jeremy J., Forman, William, Hernquist, Lars, Koutroumpa, Dimitra, Kraft, Ralph, Kuntz, K. D., Markevitch, Maxim, McCammon, Dan, Ogorzalek, Anna, Pfeifle, Ryan, Pillepich, Annalisa, Plucinsky, Paul P., Ponti, Gabriele, Schellenberger, Gerrit, Truong, Nhut, Valentini, Milena, Veilleux, Sylvain, Vladutescu-Zopp, Stephan, Wang, Q. Daniel, Weaver, Kimberly
The Line Emission Mapper (LEM) is an X-ray Probe with with spectral resolution ~2 eV FWHM from 0.2 to 2.5 keV and effective area >2,500 cm$^2$ at 1 keV, covering a 33 arcmin diameter Field of View with 15 arcsec angular resolution, capable of perform
Externí odkaz:
http://arxiv.org/abs/2310.16038
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:
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