Zobrazeno 1 - 10
of 13 325
pro vyhledávání: '"Ponti A."'
(Abridged) Sgr A$^\star$ is the electromagnetic counterpart of the accreting supermassive black hole in the Galactic center. Its emission is variable in the near-infrared (NIR) and X-ray wavelengths on short timescales. The physical origin of NIR and
Externí odkaz:
http://arxiv.org/abs/2410.09971
Reinforcement Learning from Human Feedback aligns the outputs of Large Language Models with human values and preferences. Central to this process is the reward model (RM), which translates human feedback into training signals for optimising LLM behav
Externí odkaz:
http://arxiv.org/abs/2409.17407
Autor:
Berger, Uri, Ponti, Edoardo M.
Do speakers of different languages talk differently about what they see? Behavioural and cognitive studies report cultural effects on perception; however, these are mostly limited in scope and hard to replicate. In this work, we conduct the first lar
Externí odkaz:
http://arxiv.org/abs/2409.16646
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:
Giustini, Margherita, Miniutti, Giovanni, Arcodia, Riccardo, Goodwin, Adelle, Alexander, Kate D., Chakraborty, Joheen, Buchner, Johannes, Kosec, Peter, Saxton, Richard, Bonetti, Matteo, Franchini, Alessia, Ryu, Taeho, Shu, Xinwen, Kara, Erin, Ponti, Gabriele, Quintin, Erwan, Vincentelli, Federico, Webb, Natalie, Kajava, Jari, von Fellenberg, Sebastiano D.
Quasi-periodic eruptions (QPEs) are an extreme X-ray variability phenomenon associated with low-mass supermassive black holes. First discovered in the nucleus of the galaxy GSN 069, they have been so far securely detected in five other galaxies, incl
Externí odkaz:
http://arxiv.org/abs/2409.01938
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
Publikováno v:
Nature Astronomy (2024)
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:
Mondal, Samaresh, Ponti, Gabriele, Filor, Luke, Bao, Tong, Haberl, Frank, Salcedo, Ciro, Campana, Sergio, Hailey, Charles J., Mori, Kaya, Rea, Nanda
Publikováno v:
A&A 689, A172 (2024)
We aim at characterizing the population of low-luminosity X-ray sources in the Galactic plane by studying their X-ray spectra and periodic signals in the light curves. We are performing an X-ray survey of the Galactic disk using XMM-Newton, and the s
Externí odkaz:
http://arxiv.org/abs/2407.03025
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.
Publikováno v:
A&A 690, A80 (2024)
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:
De Ponti, Jacopo M., Zhao, Xuanyi, Iorio, Luca, Maggioli, Tommaso, Colangelo, Marco, Davaji, Benyamin, Ardito, Raffaele, Craster, Richard V., Cassella, Cristian
A variety of scientific fields like proteomics and spintronics have created a new demand for on-chip devices capable of sensing parameters localized within a few tens of micrometers. Nano and microelectromechanical systems (NEMS/MEMS) are extensively
Externí odkaz:
http://arxiv.org/abs/2406.15903
Multilingual Large Language Models (LLMs) achieve remarkable levels of zero-shot cross-lingual transfer performance. We speculate that this is predicated on their ability to align languages without explicit supervision from parallel sentences. While
Externí odkaz:
http://arxiv.org/abs/2406.13229