Zobrazeno 1 - 10
of 3 732
pro vyhledávání: '"P, ARRIGONI"'
Autor:
Chang, Seok-Jun, Dutta, Rajeshwari, Gronke, Max, Fumagalli, Michele, Battaia, Fabrizio Arrigoni, Fossati, Matteo
We investigate the properties of cold gas at $10^4~\rm K$ around star-forming galaxies at $z~\sim~1$ using Mg II spectra through radiative transfer modeling. We utilize a comprehensive dataset of 624 galaxies from the MAGG and MUDF programs. We focus
Externí odkaz:
http://arxiv.org/abs/2412.08837
Autor:
Rodi, James Craig, Pacholski, Dominik Patryk, Mereghetti, Sandro, Arrigoni, Edoardo, Bazzano, Angela, Natalucci, Lorenzo, Salvaterra, Ruben, Ubertini, Pietro
We report the results on the short gamma-ray burst GRB 241107A, obtained with the IBIS instrument on board the INTEGRAL satellite. The burst had a duration of about 0.2 s, a fluence of $8 \times 10^{-7}$ erg cm-2 in the 20 keV-10 MeV range and a hard
Externí odkaz:
http://arxiv.org/abs/2412.06668
Autor:
Tornotti, Davide, Fumagalli, Michele, Fossati, Matteo, Battaia, Fabrizio Arrigoni, Benitez-Llambay, Alejandro, Dayal, Pratika, Dutta, Rajeshwari, Peroux, Celine, Rafelski, Marc, Revalski, Mitchell
We detect Ly$\alpha$ emission from a ~5 Mpc-long (comoving) portion of the cosmic web hosting an overdensity ($\delta \approx 25$) of 19 Ly$\alpha$ emitters (LAEs) at $z\approx 4$ within the MUSE Ultra Deep Field (MUDF), reaching an average surface b
Externí odkaz:
http://arxiv.org/abs/2412.06895
Giant flares from magnetars can reach, for a fraction of a second, luminosities greater than 10$^{47}$ erg s$^{-1}$ in the hard X-ray/soft $\gamma$-ray range. This makes them visible at distances of several megaparsecs. However, at extragalactic dist
Externí odkaz:
http://arxiv.org/abs/2411.03235
Autor:
Peng, Bo, Battaia, Fabrizio Arrigoni, Vishwas, Amit, Li, Mingyu, Iani, Eduardo, Sun, Fengwu, Li, Qiong, Ferkinhoff, Carl, Stacey, Gordon, Cai, Zheng
Although the circumgalactic medium (CGM) plays a vital role in galaxy evolution, studying the emission from CGM is challenging due to its low surface brightness and the complexities involved in interpreting resonant lines like Ly$\alpha$. The near-in
Externí odkaz:
http://arxiv.org/abs/2410.10993
Autor:
Pensabene, A., Galbiati, M., Fumagalli, M., Fossati, M., Smail, I., Rafelski, M., Revalski, M., Arrigoni-Battaia, F., Beckett, A., Cantalupo, S., Dutta, R., Lusso, E., Lazeyras, T., Quadri, G., Tornotti, D.
We present new ALMA continuum and spectral observations of the MUSE Ultra Deep Field (MUDF), a $2\times 2$ arcmin$^2$ region with ultradeep multiwavelength imaging and spectroscopy hosting two bright $z\approx 3.22$ quasars used to study intervening
Externí odkaz:
http://arxiv.org/abs/2410.06249
Autor:
Arrigoni, Valentin
We study an inverse resonance problem on a radially and compactly perturbed infinite hyperbolic cylinder. Using the symmetries of this kind of geometry, we are led to study a stationary Schr{\"o}dinger equation on the line with a potential V which is
Externí odkaz:
http://arxiv.org/abs/2410.03374
Multiple galaxies hosting active galactic nuclei (AGNs) at kpc separation from each other are exceedingly rare, and in fact, only one quadruple AGN is known so far. These extreme density peaks are expected to pinpoint protocluster environments and th
Externí odkaz:
http://arxiv.org/abs/2410.00974
Autor:
Dutta, Rajeshwari, Fumagalli, Michele, Fossati, Matteo, Rafelski, Marc, Revalski, Mitchell, Battaia, Fabrizio Arrigoni, D'Odorico, Valentina, Peroux, Celine, Prichard, Laura J., Swinbank, A. M.
We characterize, for the first time, the average extended emission in multiple lines ([OII], [OIII], and Hbeta) around a statistical sample of 560 galaxies at z~0.25-0.85. By stacking the Multi Unit Spectroscopic Explorer (MUSE) 3D data from two larg
Externí odkaz:
http://arxiv.org/abs/2409.02182
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
Publikováno v:
A&A 691, A210 (2024)
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