Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Werner, Norbert"'
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:
Kara, Sinancan, Plšek, Tomáš, Protušová, Klaudia, Breuer, Jean-Paul, Werner, Norbert, Mernier, François, Ercan, E. Nihal
The chemical enrichment of X-ray-emitting hot atmospheres has hitherto been primarily studied in galaxy clusters. These studies revealed relative abundances of heavy elements that are remarkably similar to Solar. Here, we present measurements of the
Externí odkaz:
http://arxiv.org/abs/2401.04709
Autor:
Vigneron, Benjamin, Hlavacek-Larrondo, Julie, Rhea, Carter Lee, Gendron-Marsolais, Marie-Lou, Lim, Jeremy, Reinheimer, Jake, Li, Yuan, Drissen, Laurent, Bryan, Greg L., Donahue, Megan, Edge, Alastair, Fabian, Andrew, Hamer, Stephen, Martin, Thomas, McDonald, Michael, McNamara, Brian, Richard-Lafferriere, Annabelle, Rousseau-Nepton, Laurie, Voit, G. Mark, Webb, Tracy, Werner, Norbert
Publikováno v:
ApJ 962 96 (2024)
We present new high-spectral resolution observations (R = $\lambda/\Delta\lambda$ = 7000) of the filamentary nebula surrounding NGC 1275, the central galaxy of the Perseus cluster. These observations have been obtained with SITELLE, an imaging Fourie
Externí odkaz:
http://arxiv.org/abs/2311.16247
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:
Zajaček, Michal, Panda, Swayamtrupta, Pandey, Ashwani, Prince, Raj, Rodríguez-Ardila, Alberto, Jaiswal, Vikram, Czerny, Bożena, Hryniewicz, Krzysztof, Urbanowicz, Maciej, Trzcionkowski, Piotr, Śniegowska, Marzena, Fałkowska, Zuzanna, Martínez-Aldama, Mary Loli, Werner, Norbert
Publikováno v:
Astronomy & Astrophysics, Volume 683, id.A140, 18 pp., 2024
Fe II emission is a well-known contributor to the UV spectra of active galactic nuclei and the modeling of this part may affect the results obtained for the MgII$\lambda2800$ emission, which is one of the lines used for black hole mass measurements a
Externí odkaz:
http://arxiv.org/abs/2310.03544
Autor:
Truong, Nhut, Pillepich, Annalisa, Nelson, Dylan, Bogdán, Ákos, Schellenberger, Gerrit, Chakraborty, Priyanka, Forman, William R., Kraft, Ralph, Markevitch, Maxim, Ogorzalek, Anna, Oppenheimer, Benjamin D., Sarkar, Arnab, Veilleux, Sylvain, Vogelsberger, Mark, Wan, Q. Daniel, Werner, Norbert, Zhuravleva, Irina, Zuhone, John
We derive predictions from state-of-the-art cosmological galaxy simulations for the spatial distribution of the hot circumgalactic medium (CGM, ${\rm [0.1-1]R_{200c}}$) through its emission lines in the X-ray soft band ($[0.3-1.3]$ keV). In particula
Externí odkaz:
http://arxiv.org/abs/2307.01277
The outskirts of galaxy clusters host complex interactions between the intra-cluster and circumcluster media. During cluster evolution, ram-pressure stripped gas clumps from infalling substructures break the uniformity of the gas distribution, which
Externí odkaz:
http://arxiv.org/abs/2306.10101
Publikováno v:
A&A 678, A122 (2023)
Past observations and simulations predict an increasingly inhomogeneous gas distribution towards the outskirts of galaxy clusters, but the exact properties of such gas clumping are not yet well known. The outskirts of Abell 133 benefit from deep X-ra
Externí odkaz:
http://arxiv.org/abs/2306.10110
Autor:
Hu, Dan, Zajaček, Michal, Werner, Norbert, Grossová, Romana, Jáchym, Pavel, Roberts, Ian D., Ignesti, Alessandro, Kenney, Jeffrey D. P., Plšek, Tomáš, Breuer, Jean-Paul, Shimwell, Timothy, Tasse, Cyril, Zhu, Zhenhao, Wu, Linhui
We report LOFAR and VLA detections of extended radio emission in the spiral galaxy HCG 97b, hosted by an X-ray bright galaxy group. The extended radio emission detected at 144 MHz, 1.4 GHz and 4.86 GHz is elongated along the optical disk and has a ta
Externí odkaz:
http://arxiv.org/abs/2304.13066
The study of jet-inflated X-ray cavities provides a powerful insight into the energetics of hot galactic atmospheres and radio-mechanical AGN feedback. By estimating the volumes of X-ray cavities, the total energy and thus also the corresponding mech
Externí odkaz:
http://arxiv.org/abs/2304.05457