Zobrazeno 1 - 10
of 363
pro vyhledávání: '"Comparat, Johan"'
Autor:
Shreeram, Soumya, Comparat, Johan, Merloni, Andrea, Zhang, Yi, Ponti, Gabriele, Nandra, Kirpal, ZuHone, John, Marini, Ilaria, Vladutescu-Zopp, Stephan, Popesso, Paola, Pakmor, Ruediger, Seppi, Riccardo, Peroux, Celine, Sorini, Daniele
The hot phase of the circumgalactic medium (CGM) allows us to probe the inflow and outflow of gas within a galaxy, which is responsible for dictating the evolution of the galaxy. Studying the hot CGM sheds light on a better understanding of gas physi
Externí odkaz:
http://arxiv.org/abs/2409.10397
Autor:
Rodríguez, Iván Muñoz, Georgakakis, Antonis, Shankar, Francesco, Ruiz, Ángel, Bonoli, Silvia, Comparat, Johan, Koulouridis, Elias, Lapi, Andrea, Almeida, Cristina Ramos
Environmental effects are believed to play an important yet poorly understood role in triggering accretion events onto the supermassive black holes (SMBHs) of galaxies (Active Galactic Nuclei; AGN). Massive clusters, which represent the densest struc
Externí odkaz:
http://arxiv.org/abs/2403.07060
Autor:
Kleinebreil, Florian, Grandis, Sebastian, Schrabback, Tim, Ghirardini, Vittorio, Chiu, I-Non, Liu, Ang, Kluge, Matthias, Reiprich, Thomas H., Artis, Emmanuel, Bahar, Emre, Balzer, Fabian, Bulbul, Esra, Clerc, Nicolas, Comparat, Johan, Garrel, Christian, Gruen, Daniel, Li, Xiangchong, Miyatake, Hironao, Miyazaki, Satoshi, Ramos-Ceja, Miriam E., Sanders, Jeremy, Seppi, Riccardo, Okabe, Nobuhiro, Zhang, Xiaoyuan
We aim to participate in the calibration of the X-ray photon count rate to halo mass scaling relation of galaxy clusters selected in the first eROSITA All-Sky Survey on the Western Galactic Hemisphere (eRASS1) using KiDS-1000 weak-lensing (WL) data.
Externí odkaz:
http://arxiv.org/abs/2402.08456
Autor:
Zheng, Xueying, Ponti, Gabriele, Locatelli, Nicola, Sanders, Jeremy, Merloni, Andrea, Becker, Werner, Comparat, Johan, Dennerl, Konrad, Freyberg, Michael, Maitra, Chandreyee, Sasaki, Manami, Strong, Andrew, Yeung, Michael C. H.
Publikováno v:
A&A 689, A328 (2024)
[abridged] Hot plasma plays a crucial role in regulating the baryon cycle within the Milky Way, flowing from the energetic sources in the Galactic center and disc, to the corona and the halo. This hot plasma represents an important fraction of the Ga
Externí odkaz:
http://arxiv.org/abs/2401.17310
Autor:
Zhang, Yi, Comparat, Johan, Ponti, Gabriele, Merloni, Andrea, Nandra, Kirpal, Haberl, Frank, Truong, Nhut, Pillepich, Annalisa, Locatelli, Nicola, Zhang, Xiaoyuan, Sanders, Jeremy, Zheng, Xueying, Liu, Ang, Popesso, Paola, Liu, Teng, Predehl, Peter, Salvato, Mara, Shreeram, Soumya, Yeung, Michael C. H.
Understanding how the properties of galaxies relate to the properties of the hot circum-galactic medium (CGM) around them can constrain galaxy evolution models. We measured the X-ray luminosity of the hot CGM based on the surface brightness profiles
Externí odkaz:
http://arxiv.org/abs/2401.17309
Autor:
Zhang, Yi, Comparat, Johan, Ponti, Gabriele, Merloni, Andrea, Nandra, Kirpal, Haberl, Frank, Locatelli, Nicola, Zhang, Xiaoyuan, Sanders, Jeremy, Zheng, Xueying, Liu, Ang, Popesso, Paola, Liu, Teng, Truong, Nhut, Pillepich, Annalisa, Predehl, Peter, Salvato, Mara, Shreeram, Soumya, Yeung, Michael C. H., Ni, Qingling
The circumgalactic medium (CGM) provides the material needed for galaxy formation and influences galaxy evolution. The hot ($T>10^6K$) CGM is poorly detected around galaxies with stellar masses ($M_*$) lower than $3\times10^{11}M_\odot$ due to the lo
Externí odkaz:
http://arxiv.org/abs/2401.17308
Autor:
Hoyer, Nils, Arcodia, Riccardo, Bonoli, Silvia, Merloni, Andrea, Neumayer, Nadine, Zhang, Yi, Comparat, Johan
Massive black holes (MBHs) are typically hosted in the centres of massive galaxies but they appear to become rarer in lower mass galaxies, where nuclear star clusters (NSCs) frequently appear instead. The transition region, where both an MBH and NSC
Externí odkaz:
http://arxiv.org/abs/2401.17288
Autor:
Zheng, Xueying, Ponti, Gabriele, Freyberg, Michael, Sanders, Jeremy, Locatelli, Nicola, Merloni, Andrea, Strong, Andy, Sasaki, Manami, Comparat, Johan, Becker, Werner, Kerp, Juergen, Maitra, Chandreyee, Liu, Teng, Predehl, Peter, Anastasopoulou, Konstantina, Lamer, Georg
By June of 2020, the extended ROentgen Survey with an Imaging Telescope Array (eROSITA) on board the Spectrum Roentgen Gamma observatory had completed its first of the planned eight X-ray all-sky survey (eRASS1). The large effective area of the X-ray
Externí odkaz:
http://arxiv.org/abs/2312.06745
Autor:
Zhong, Fucheng, Napolitano, Nicola R., Heneka, Caroline, Li, Rui, Bauer, Franz Erik, Bouche, Nicolas, Comparat, Johan, Kim, Young-Lo, Krogager, Jens-Kristian, Longhetti, Marcella, Loveday, Jonathan, Roukema, Boudewijn F., Rouse, Benedict L., Salvato, Mara, Tortora, Crescenzo, Assef, Roberto J., Cassarà, Letizia P., Costantin, Luca, Croom, Scott, Davies, Luke J M, Fritz, Alexander, Guiglion, Guillaume, Humphrey, Andrew, Pompei, Emanuela, Ricci, Claudio, Sifón, Cristóbal, Tempel, Elmo, Zafar, Tayyaba
Large sky spectroscopic surveys have reached the scale of photometric surveys in terms of sample sizes and data complexity. These huge datasets require efficient, accurate, and flexible automated tools for data analysis and science exploitation. We p
Externí odkaz:
http://arxiv.org/abs/2311.04146
Autor:
Musiimenta, Blessing, Brusa, Marcella, Liu, Teng, Salvato, Mara, Buchner, Johannes, Igo, Zsofi, Waddell, Sophia G. H., Toba, Yoshiki, Arcodia, Riccardo, Comparat, Johan, Alexander, David M., Shankar, Francesco, Lapi, Andrea, Almeida, Cristina Ramos, Georgakakis, Antonis, Merloni, Andrea, Urrutia, Tanya, Li, Junyao, Terashima, Yuichi, Shen, Yue, Wu, Qiaoya, Dwelly, Tom, Nandra, Kirpal, Wolf, Julien
Publikováno v:
A&A 679, A84 (2023)
In the context of an evolutionary model, the outflow phase of an Active Galactic Nuclei (AGN) occurs at the peak of its activity, once the central SMBH is massive enough to generate sufficient power to counterbalance the potential well of the host ga
Externí odkaz:
http://arxiv.org/abs/2309.16528