358 citations
- Universidade de São PauloBR52 papers
- Universidade Federal do Rio de JaneiroBR36 papers
- Centre National de la Recherche ScientifiqueFR35 papers
- Osservatorio Astronomico di PadovaIT26 papers
- Valongo ObservatoryBR23 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR21 papers
- University of PaduaIT21 papers
- Instituto Nacional de Pesquisas EspaciaisBR20 papers
- Universidade Federal do ABCBR20 papers
- Universidade Federal do Rio Grande do SulBR20 papers
- Aix-Marseille UniversitéFR18 papers
- Laboratoire d’Astrophysique de MarseilleFR18 papers
206 papers
The Radial Acceleration Relation in Galaxies and Clusters from a Two-Component, Virial-Motivated Framework
Christine C. Dantas, Andre L. B. Ribeiro, Hugo V. Capelato
We present a comparative analysis of acceleration data for gravitational systems drawn from multiple observational sources, including: (i) early-type galaxies (ETGs) (Lelli et al.…
The Limits of Photometric Dynamics: Benchmarking Cluster Relaxation Diagnostics
Alisson P. Costa, Andre L. B. Ribeiro, Zhonglue L. Wen +1
Galaxy clusters are key probes of cosmology and structure formation, yet their dynamical classification traditionally relies on spectroscopic redshifts, which do not scale efficien…
Future Perspectives on Black Hole Jet Mechanisms: Insights from Next-Generation Observatories and Theoretical Developments
Andre L. B. Ribeiro, Nathalia M. N. da Rocha
Black hole jets represent one of the most extreme manifestations of astrophysical processes, linking accretion physics, relativistic magnetohydrodynamics, and large-scale feedback…
A Near-Infrared and Optical Study of NGC 5822: An Open Cluster Hosting Barium-stars and Lithium-Enriched Giant Stars
N. Holanda, V. Loaiza-Tacuri, A. Sonally +7
We present a chemical abundance study of giant stars in the Galactic open cluster NGC 5822, which hosts two barium stars (#002 and #201) and three lithium-enriched giants (#006, #1…
Equilibration and the eigenstate thermalization hypothesis as limits to observing macroscopic quantum superpositions
Gabriel Dias Carvalho, Pedro S. Correia, Thiago R. de Oliveira
Macroscopic quantum superpositions are widely believed to be unobservable because large systems cannot be perfectly isolated from their environments. Here, we show that even under…
Stopping power monitoring during proton therapy by means of prompt gamma timing: first experimental results with a homogeneous phantom
Julius Werner, Francesco Pennazio, Piergiorgio Cerello +11
Proton therapy's full potential is limited by uncertainties that prevent optimal dose distribution. Monitoring techniques can reduce these uncertainties and enable adaptive treatme…