Zobrazeno 1 - 10
of 2 104
pro vyhledávání: '"Obreja, A."'
Cosmological simulations are a powerful tool to advance our understanding of galaxy formation and many simulations model key properties of real galaxies. A question that naturally arises for such simulations in light of high-quality observational dat
Externí odkaz:
http://arxiv.org/abs/2410.10606
Autor:
Herwig, Eileen, Battaia, Fabrizio Arrigoni, Lobos, Jay González, Farina, Emanuele P., Man, Allison W. S., Bañados, Eduardo, Kauffmann, Guinevere, Cai, Zheng, Obreja, Aura, Prochaska, J. Xavier
Extended Ly$\alpha$ emission is routinely found around single quasars (QSO) across cosmic time. However, few studies have investigated how such emission changes in fields with physically associated QSO pairs, which should reside in dense environments
Externí odkaz:
http://arxiv.org/abs/2408.16826
Autor:
Muñoz-Elgueta, N., Battaia, F. Arrigoni, Kauffmann, G., Pakmor, R., Walch, S., Obreja, A., Buhlmann, L.
Publikováno v:
A&A 690, A392 (2024)
Extended [CII] emission on tens of kpc, also known as a [CII] halo, is being currently reported around z$\sim$4-6 star-forming galaxies, especially thanks to the statistics of the ALPINE survey. The [CII] emission is expected to trace dense cold gas
Externí odkaz:
http://arxiv.org/abs/2407.17359
Autor:
Waterval, Stefan, Macciò, Andrea V., Buck, Tobias, Obreja, Aura, Cho, Changhyun, Jin, Zehao, Davis, Benjamin L., Dixon, Keri L., Kang, Xi
We present the High-$z$ Evolution of Large and Luminous Objects (HELLO) project, a set of $\sim\!30$ high-resolution cosmological simulations aimed to study Milky Way analogues ($M_\star\sim10^{10-11}$\,\Msun) at high redshift ($z\sim [2-4]$). Based
Externí odkaz:
http://arxiv.org/abs/2403.03985
Autor:
Yuxi, Lu, Buck, Tobias, Nidever, David, Ratcliffe, Bridget, Minchev, Ivan, Macciò, Andrea V., Obreja, Aura
It is well known that stars move away from their birth location over time via radial migration. This dynamical process makes computing the correct chemical evolution, e.g., metallicity gradients, of galaxies very difficult. This dynamical process mak
Externí odkaz:
http://arxiv.org/abs/2312.07219
Active Galactic Nuclei (AGN) in cosmological simulations generate explosive feedback that regulates star formation in massive galaxies, modifying the gas phase structure out to large distances. Here, we explore the direct effects that AGN radiation h
Externí odkaz:
http://arxiv.org/abs/2311.01503
Autor:
Emilio A. Cafferata, Ausra Ramanauskaite, Astrid Cuypers, Karina Obreja, Eva Dohle, Shahram Ghanaati, Frank Schwarz
Publikováno v:
BMC Oral Health, Vol 24, Iss 1, Pp 1-15 (2024)
Abstract Purpose Cumulating evidence supports the close association between periodontal diseases, neuroinflammation and neurodegenerative pathologies, except for peri-implantitis (PI). Thus, this study explored the association between experimental PI
Externí odkaz:
https://doaj.org/article/1a12b2a0055d4a5d8de4275c4e3898f1
Autor:
Lobos, Vale González, Battaia, Fabrizio Arrigoni, Chang, Seok-Jun, Gronke, Max, Kauffmann, Guinevere, Chen, Chian-Chou, Fu, Hai, Obreja, Aura, Farina, Emanuele P.
Publikováno v:
A&A 679, A41 (2023)
We present VLT/MUSE observations targeting the extended Lyman-$\alpha$ (Ly$\alpha$) emission of five high-redshift ($z\sim$3-4) submillimeter galaxies (SMGs) with increasing quasar (QSO) radiation: two SMGs, two SMGs hosting a QSO, and one SMG hostin
Externí odkaz:
http://arxiv.org/abs/2308.15955
Cool ($T\sim10^4$~K) gas is commonly observed around $z>2$ quasars as traced by extended Ly$\alpha$ emission. These large-scale nebulae are usually studied using circularly averaged surface brightness profiles, which suppress information on morpholog
Externí odkaz:
http://arxiv.org/abs/2306.14334
Autor:
Battaia, Fabrizio Arrigoni, Obreja, Aura, Chen, Chian-Chou, Nowotka, Marta, Fumagalli, Michele, Prochaska, J. Xavier, Yang, Yujin, Cai, Zheng, Muñoz-Elgueta, Nahir, Fossati, Matteo
Publikováno v:
A&A 676, A51 (2023)
We conducted a systematic survey of the environment of high-z quasars at submillimeter wavelengths to unveil and characterize the surrounding distribution of dusty submillimeter galaxies (SMGs). We took sensitive JCMT/SCUBA-2 observations for 3 enorm
Externí odkaz:
http://arxiv.org/abs/2305.15606