434 citations
- Universidade de São PauloBR82 papers
- Centre National de la Recherche ScientifiqueFR25 papers
- Valongo ObservatoryBR24 papers
- National ObservatoryBR22 papers
- Center for Astrophysics Harvard & SmithsonianUS16 papers
- Universidade Federal do Rio de JaneiroBR16 papers
- Instituto de Astrofísica de AndalucíaES14 papers
- Massachusetts Institute of TechnologyUS14 papers
- Universidade Federal de Santa CatarinaBR14 papers
- European Southern ObservatoryCL13 papers
- University of MichiganUS13 papers
- Joint Institute for Nuclear AstrophysicsUS12 papers
145 papers
SpectralUnmix: A Torch-Based Regularized Non-negative Matrix Factorization
Rafael S. de Souza, Paula Coelho, Niranjana P +2
We present SpectralUnmix, an R package for regularized non-negative matrix factorization (NMF), implemented in torch with optional GPU acceleration. The package estimates low-rank…
Complex segregation patterns in confined nonuniform granular shearing flows
Santiago Caro, Riccardo Artoni, Patrick Richard +2
When polydisperse granular systems are sheared, the transverse dynamics is characterized by the interplay of size segregation and diffusion. Segregation in nonuniform and confined…
APOGEE chemical abundances of stars in the MW satellites Fornax, Sextans, Draco and Carina
Cheng Xu, Yi Qiao, Baitian Tang +3
During its evolution, the Milky Way (MW) incorporated numerous dwarf galaxies, particularly low-mass systems. The surviving dwarf galaxies orbiting the MW serve as exceptional labo…
Discovery of an Star in XP Spectra
Guilherme Limberg, Vinicius M. Placco, Alexander P. Ji +5
We report on the discovery of GDR3_526285 ( DR3 Source ID 5262850721755411072), a star with and one of the lowest metal ($\text{atomic number} >…
Origin of the ring ellipticity in the black hole images of M87*
Rohan Dahale, Ilje Cho, Kotaro Moriyama +273
We investigate the origin of the elliptical ring structure observed in the images of the supermassive black hole M87*, aiming to disentangle contributions from gravitational, astro…
Multiple-scale gas infall through gravity torques on Milky Way twins
Patrícia da Silva, F. Combes
One of the main problems raised by the feeding of supermassive black holes (SMBHs) at the centres of galaxies is the huge angular momentum of the circumnuclear gas and of the gas r…