Zobrazeno 1 - 10
of 1 846
pro vyhledávání: '"Merloni A."'
Autor:
Zhang, He-Shou, Ponti, Gabriele, Carretti, Ettore, Liu, Ruo-Yu, Morris, Mark R., Haverkorn, Marijke, Locatelli, Nicola, Zheng, Xueying, Aharonian, Felix, Zhang, Haiming, Zhang, Yi, Stel, Giovanni, Strong, Andrew, Yeung, Micheal, Merloni, Andrea
Large-scale magnetic fields are observed off the midplanes of disk galaxies, indicating that they harbour magnetised halos. These halos are crucial to studies of galaxy evolution, galactic-scale outflows, and feedback from star formation activity. Id
Externí odkaz:
http://arxiv.org/abs/2408.06312
Autor:
Saxena, A., Salvato, M., Roster, W., Shirley, R., Buchner, J., Wolf, J., Kohl, C., Starck, H., Dwelly, T., Comparat, J., Malyali, A., Krippendorf, S., Zenteno, A., Lang, D., Schlegel, D., Zhou, R., Dey, A., Valdes, F., Myers, A., Assef, R. J., Ricci, C., Temple, M. J., Merloni, A., Koekemoer, A., Anderson, S. F., Morrison, S., Liu, X., Nandra, K.
(abridged)Photometric redshifts for AGN (galaxies hosting an accreting supermassive black hole in their center) are notoriously challenging and currently better computed via SED fitting, assuming that deep photometry for many wavelengths is available
Externí odkaz:
http://arxiv.org/abs/2407.10788
Autor:
Arcodia, R., Linial, I., Miniutti, G., Franchini, A., Giustini, M., Bonetti, M., Sesana, A., Soria, R., Chakraborty, J., Dotti, M., Kara, E., Merloni, A., Ponti, G., Vincentelli, F.
Quasi-periodic eruptions (QPEs) are repeated X-ray flares from galactic nuclei. Despite some diversity in the recurrence and amplitude of eruptions, their striking regularity has motivated theorists to associate QPEs with orbital systems. Among the k
Externí odkaz:
http://arxiv.org/abs/2406.17020
Autor:
Sánchez-Sáez, P., Hernández-García, L., Bernal, S., Bayo, A., Rivera, G. Calistro, Bauer, F. E., Ricci, C., Merloni, A., Graham, M. J., Cartier, R., Arévalo, P., Assef, R. J., Concas, A., Homan, D., Krumpe, M., Lira, P., Malyali, A., Martínez-Aldama, M. L., Arancibia, A. M. Muñoz, Rau, A., Bruni, G., Förster, F., Pavez-Herrera, M., Tubín-Arenas, D., Brightman, M.
The galaxy SDSS1335+0728, which had exhibited no prior optical variations during the preceding two decades, began showing significant nuclear variability in the Zwicky Transient Facility (ZTF) alert stream from December 2019 (as ZTF19acnskyy). Its be
Externí odkaz:
http://arxiv.org/abs/2406.11983
Autor:
Hagen, Scott, Done, Chris, Silverman, John D., Li, Junyao, Liu, Teng, Ren, Wenke, Buchner, Johannes, Merloni, Andrea, Nagao, Tohru, Salvato, Mara
The structure of the accretion flow onto supermassive black holes (SMBH) is not well understood. Standard disc models match to zeroth order in predicting substantial energy dissipation within optically-thick material producing a characteristic strong
Externí odkaz:
http://arxiv.org/abs/2406.06674
Autor:
Wolf, J., Salvato, M., Belladitta, S., Arcodia, R., Ciroi, S., Di Mille, F., Sbarrato, T., Buchner, J., Hämmerich, S., Wilms, J., Collmar, W., Dwelly, T., Merloni, A., Urrutia, T., Nandra, K.
The SRG/eROSITA All-Sky Survey (eRASS) is expected to contain ~100 quasars that emitted their light when the universe was less than a billion years old, i.e. at z>5.6. By selection, these quasars populate the bright end of the AGN X-ray luminosity fu
Externí odkaz:
http://arxiv.org/abs/2406.05118
Autor:
Zhang, X., Bulbul, E., Malavasi, N., Ghirardini, V., Comparat, J., Kluge, M., Liu, A., Merloni, A., Zhang, Y., Bahar, Y. E., Artis, E., Sanders, J., Garrel, C., Balzer, F., Brüggen, M., Freyberg, M., Gatuzz, E., Grandis, S., Krippendorf, S., Nandra, K., Ponti, G., Ramos-Ceja, M., Predehl, P., Reiprich, T. H., Veronica, A., Yeung, M. C. H., Zelmer, S.
The properties of the warm-hot intergalactic medium (WHIM) in the cosmic filaments are among the least quantified in modern astrophysics. eROSITA All Sky Survey (eRASS) provides us with a unique opportunity to study the X-ray emission of the WHIM. We
Externí odkaz:
http://arxiv.org/abs/2406.00105
Autor:
Buchner, Johannes, Starck, Hattie, Salvato, Mara, Netzer, Hagai, Igo, Zsofi, Laloux, Brivael, Georgakakis, Antonis, Gauger, Isabelle, Olechowska, Anna, Lopez, Nicolas, Shankar, Suraj D, Li, Junyao, Nandra, Kirpal, Merloni, Andrea
The assembly and co-evolution of supermassive black holes (SMBH) and their host galaxy stellar population is a key open questions in galaxy evolution. Stellar mass ($M_\star$) and star formation rate (SFR), are inferred by modeling the spectral energ
Externí odkaz:
http://arxiv.org/abs/2405.19297
Autor:
Liu, Teng, Merloni, Andrea, Sanders, Jeremy, Ponti, Gabriele, Strong, Andrew, Yeung, Michael, Locatelli, Nicola, Predehl, Peter, Zheng, Xueying, Sasaki, Manami, Freyberg, Michael, Dennerl, Konrad, Becker, Werner, Nandra, Kirpal, Mayer, Martin, Buchner, Johannes
There are two contradictory views of the eROSITA bubbles: either a 10 kpc-scale pair of giant bubbles blown by the Galactic center (GC), or a 100 pc-scale local structure coincidentally located in the direction of GC. A key element of this controvers
Externí odkaz:
http://arxiv.org/abs/2405.04264
Autor:
Liu, A., Bulbul, E., Shin, T., von der Linden, A., Ghirardini, V., Kluge, M., Sanders, J. S., Grandis, S., Zhang, X., Artis, E., Bahar, Y. E., Balzer, F., Clerc, N., Malavasi, N., Merloni, A., Nandra, K., Ramos-Ceja, M. E., Zelmer, S.
Publikováno v:
A&A 688, A186 (2024)
We explore halo assembly bias on cluster scales using large samples of superclusters. Leveraging the largest-ever X-ray galaxy cluster and supercluster samples obtained from the first SRG/eROSITA all-sky survey, we construct two subsamples of galaxy
Externí odkaz:
http://arxiv.org/abs/2404.17345