8.6k citations · 10.6k across the 63 of their papers we have counts for
63 papers
RadialPaths: Radial profiles in multi-centred astronomical structures
Rafael S. de Souza
Radial profiles are routinely used to locate structural changes within resolved astronomical systems, but they generally define radial position relative to a single centre. In inte…
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…
The Milky Way in motion: gauging stellar trajectories that shape the Galactic thin disc
M. L. L. Dantas, R. Smiljanic, R. S. de Souza +2
As stars traverse the Milky Way, their orbits evolve through perturbations that alter their orbital radii. These changes arise from two mechanisms: churning, which modifies angular…
A Brief History of Inference in Astronomy
Rafael S. de Souza, Emille E. O. Ishida, Alberto Krone-Martins
In this short review, we trace the evolution of inference in astronomy, highlighting key milestones rather than providing an exhaustive survey. We focus on the shift from classical…
Capivara: A Spectral-based Segmentation Method for IFU Data Cubes
Rafael S. de Souza, Luis G. Dahmer-Hahn, Shiyin Shen +7
We present capivara, a fast and scalable spectral-based segmentation package designed to study astrophysical properties within distinct structural components of galaxies. This spec…
Galmoss: A package for GPU-accelerated Galaxy Profile Fitting
Mi Chen, Rafael S. de Souza, Quanfeng Xu +5
We introduce galmoss, a python-based, torch-powered tool for two-dimensional fitting of galaxy profiles. By seamlessly enabling GPU parallelization, galmoss meets the high computat…
NSCs from groups to clusters: A catalogue of dwarf galaxies in the Shapley Supercluster and the role of environment in galaxy nucleation
Emilio J. B. Zanatta, Ruben Sanchéz-Janssen, Rafael S. de Souza +2
Nuclear star clusters (NSCs) are dense star clusters located at the centre of galaxies spanning a wide range of masses and morphologies. Analysing NSC occupation statistics in diff…
The 2022-2023 accretion outburst of the young star V1741 Sgr
Michael A. Kuhn, Lynne A. Hillenbrand, Michael S. Connelley +12
V1741 Sgr (= SPICY 71482/Gaia22dtk) is a Classical T Tauri star on the outskirts of the Lagoon Nebula. After at least a decade of stability, in mid-2022, the optical source brighte…
Spatially resolved self-consistent spectral modelling of jellyfish galaxies from MUSE with FADO: trends with mass and stripping intensity
Gabriel M. Azevedo, Ana L. Chies-Santos, Rogério Riffel +5
We present a spatially resolved stellar population analysis of 61 jellyfish galaxies and 47 control galaxies observed with ESO/MUSE attempting to understand the general trends of t…
Are classification metrics good proxies for SN Ia cosmological constraining power?
Alex I. Malz, Mi Dai, Kara A. Ponder +10
Context: When selecting a classifier to use for a supernova Ia (SN Ia) cosmological analysis, it is common to make decisions based on metrics of classification performance, i.e. co…
Repeating Outbursts from the Young Stellar Object Gaia23bab (= SPICY 97589)
Michael A. Kuhn, Robert A. Benjamin, Emille E. O. Ishida +3
The light curve of Gaia23bab (= SPICY 97589) shows two significant ( mag) brightening events, one in 2017 and an ongoing event starting in 2022. The source's quiescent spectr…
From Images to Features: Unbiased Morphology Classification via Variational Auto-Encoders and Domain Adaptation
Quanfeng Xu, Shiyin Shen, Rafael S. de Souza +7
We present a novel approach for the dimensionality reduction of galaxy images by leveraging a combination of variational auto-encoders (VAE) and domain adaptation (DA). We demonstr…
Constraining Supernova Physics through Gravitational-Wave Observations
Gergely Dálya, Sibe Bleuzé, Bence Bécsy +2
We examine the potential for using the LIGO-Virgo-KAGRA network of gravitational-wave detectors to provide constraints on the physical properties of core-collapse supernovae throug…
Bayesian Estimation of the Factor and Thermonuclear Reaction Rate for O(p,)F
Christian Iliadis, Vimal Palanivelrajan, Rafael S. de Souza
The O(p,)F reaction is the slowest hydrogen-burning process in the CNO mass region. Its thermonuclear rate sensitively impacts predictions of oxygen isotopic ratio…
Enabling the discovery of fast transients: A kilonova science module for the Fink broker
B. Biswas, E. E. O. Ishida, J. Peloton +4
We describe the fast transient classification algorithm in the center of the kilonova (KN) science module currently implemented in the Fink broker and report classification results…
SCONCE: A cosmic web finder for spherical and conic geometries
Yikun Zhang, Rafael S. de Souza, Yen-Chi Chen
The latticework structure known as the cosmic web provides a valuable insight into the assembly history of large-scale structures. Despite the variety of methods to identify the co…
Gaia Data Release 3: Surface brightness profiles of galaxies and host galaxies of quasars
C. Ducourant, A. Krone-Martins, L. Galluccio +13
Since July 2014, the Gaia space mission has been continuously scanning the sky and observing the extragalactic Universe with unprecedented spatial resolution in the optical domain…
galmask: A Python package for unsupervised galaxy masking
Yash Gondhalekar, Rafael S. de Souza, Ana L. Chies-Santos
Galaxy morphological classification is a fundamental aspect of galaxy formation and evolution studies. Various machine learning tools have been developed for automated pipeline ana…
A graph-based spectral classification of Type II supernovae
Rafael S. de Souza, Stephen Thorp, Lluís Galbany +5
Given the ever-increasing number of time-domain astronomical surveys, employing robust, interpretative, and automated data-driven classification schemes is pivotal. Based on graph…
qrpca: A Package for Fast Principal Component Analysis with GPU Acceleration
Rafael S. de Souza, Xu Quanfeng, Shiyin Shen +2
We present qrpca, a fast and scalable QR-decomposition principal component analysis package. The software, written in both R and python languages, makes use of torch for internal m…
Spectroscopic Confirmation of a Population of Isolated, Intermediate-Mass YSOs
Michael A. Kuhn, Ramzi Saber, Matthew S. Povich +8
Wide-field searches for young stellar objects (YSOs) can place useful constraints on the prevalence of clustered versus distributed star formation. The Spitzer/IRAC Candidate YSO (…
How have astronomers cited other fields in the last decade?
Michele Delli Veneri, Rafael S. de Souza, Alberto Krone-Martins +3
We present a citation pattern analysis between astronomical papers and 13 other disciplines, based on the arXiv database over the past decade (). We analyze 12,600 ast…
J-PLUS: A catalogue of globular cluster candidates around the M81/M82/NGC3077 triplet of galaxies
Ana L. Chies-Santos, Rafael S. de Souza, Juan P. Caso +16
Globular clusters (GCs) are proxies of the formation assemblies of their host galaxies. However, few studies exist targeting GC systems of spiral galaxies up to several effective r…
GLADE+: An Extended Galaxy Catalogue for Multimessenger Searches with Advanced Gravitational-wave Detectors
G. Dálya, R. Díaz, F. R. Bouchet +10
We present GLADE+, an extended version of the GLADE galaxy catalogue introduced in our previous paper for multimessenger searches with advanced gravitational-wave detectors. GLADE+…