Zobrazeno 1 - 10
of 6 868
pro vyhledávání: '"Carraro, P"'
Autor:
Bortolotti, Samuele, Marconato, Emanuele, Carraro, Tommaso, Morettin, Paolo, van Krieken, Emile, Vergari, Antonio, Teso, Stefano, Passerini, Andrea
The advent of powerful neural classifiers has increased interest in problems that require both learning and reasoning. These problems are critical for understanding important properties of models, such as trustworthiness, generalization, interpretabi
Externí odkaz:
http://arxiv.org/abs/2406.10368
Autor:
Albarrán, M. L. Gutiérrez, Montes, D., Tabernero, H. M., Hernández, J. I. González, Marfil, E., Frasca, A., Lanzafame, A. C., Klutsch, A., Franciosini, E., Randich, S., Smiljanic, R., Korn, A. J., Gilmore, G., Alfaro, E. J., Bensby, T., Biazzo, K., Casey, A., Carraro, G., Damiani, F., Feltzing, S., François, P., Esteban, F. Jiménez, Magrini, L., Morbidelli, L., Prisinzano, L., Prusti, T., Worley, C. C., Zaggia, S., builders, GES
The Li abundance observed in pre-main sequence and main sequence late-type stars is strongly age-dependent, but also shows a complex pattern depending on several parameters, such as rotation, chromospheric activity and metallicity. The best way to ca
Externí odkaz:
http://arxiv.org/abs/2404.08859
Autor:
Kulesh, Maxim V., Samirkhanova, Aleksandra E., Carraro, Giovanni, Silva, Joao Sales, Dolcetta, Roberto Capuzzo, Seleznev, Anton F.
We use a Kernel Density Estimator method to evaluate the stellar velocity dispersion in the open cluster NGC 2571. We derive the 3-D velocity dispersion using both proper motions as extracted from Gaia DR3 and single epoch radial velocities as obtain
Externí odkaz:
http://arxiv.org/abs/2403.06137
Autor:
Rain, M. J., Pera, M. S., Perren, G., Benvenuto, O., Panei, J., de Vito, A., Carraro, G., Villanova, S.
Building on the recent release of a new \emph{Gaia}-based blue straggler star catalog in Galactic open star clusters (OCs), we explored the properties of these stars in a cluster sample spanning a wide range in fundamental parameters. We employed \em
Externí odkaz:
http://arxiv.org/abs/2402.14990
AIMS. We derive the morphology of the stellar component in the outer halo volume, and search for possible overdensities due to substructures therein. METHODS. We made use of some of the data releases of the spectroscopic survey LAMOST DR8-DR9 in tand
Externí odkaz:
http://arxiv.org/abs/2402.05157
Autor:
Carraro, Diego, Bridge, Derek
It has long been recognized that it is not enough for a Recommender System (RS) to provide recommendations based only on their relevance to users. Among many other criteria, the set of recommendations may need to be diverse. Diversity is one way of h
Externí odkaz:
http://arxiv.org/abs/2401.11506
Autor:
Haddad, I. Carraro, Chafatinos, D. L., Kuznetsov, A. S., Papuccio-Fernández, I. A., Reynoso, A. A., Bruchhausen, A. E., Biermann, K., Santos, P. V., Usaj, G., Fainstein, A.
Publikováno v:
Science 384, 995-1000 (2024)
Time crystals (TCs) are many-body systems displaying spontaneous breaking of time translation symmetry. Here, we demonstrate a TC using driven-dissipative condensates of microcavity exciton-polaritons, spontaneously formed from an incoherent particle
Externí odkaz:
http://arxiv.org/abs/2401.06246
Autor:
Ramos-Pérez, I. A., Carraro-Haddad, I., Fainstein, F., Chafatinos, D. L., Usaj, G., Mindlin, G. B., Fainstein, A., Reynoso, A. A.
Publikováno v:
Phys. Rev. B 109, 165305 (2024)
The ubiquitous phenomenon of synchronization is inherently characteristic of dynamical dissipative non-linear systems. In particular, synchronization has been theoretically and experimentally demonstrated for exciton-polariton condensates with time-i
Externí odkaz:
http://arxiv.org/abs/2312.08420
Autor:
Cavallo, L., Spina, L., Carraro, G., Magrini, L., Poggio, E., Cantat-Gaudin, T., Pasquato, M., Lucatello, S., Ortolani, S., Schiappacasse-Ulloa, J.
With the unprecedented increase of known star clusters, quick and modern tools are needed for their analysis. In this work, we develop an artificial neural network trained on synthetic clusters to estimate the age, metallicity, extinction, and distan
Externí odkaz:
http://arxiv.org/abs/2311.03009
Autor:
Wang, Hai-Feng, Carraro, Giovanni, Li, Xin, Li, Qi-Da, Spina, Lorenzo, Chen, Li, Wang, Guan-Yu, Deng, Li-Cai
In this study we estimate the stellar ages of LAMOST DR8 Red Giant Branch (RGB) stars based on the Gradient Boosting Decision Tree algorithm (GBDT). We used 2,643 RGB stars extracted from the APOKASC-2 astero-seismological catalog as training data-se
Externí odkaz:
http://arxiv.org/abs/2310.17196