Explanipedia

Aplicações Clínicas e Inovações Tecnológicas da Estimulação Cerebral Profunda: Uma Revisão de Literatura Open

Carlos Walmyr de Mattos Oliveira, Cristiane del Corsso, Monica Montemor Bertazo, Rui Miguel Monteiro de Brito, Filomena Silva , et al. · 2025

A estimulação cerebral profunda (ECP) é uma intervenção neurocirúrgica inovadora que modula circuitos neurais em condições refratárias ao tratamento convencional, evoluindo de técnicas ablativas para estimulação elétrica crônica de alta fr…

Euclid Quick Data Release (Q1)—Spectroscopic Search, Classification, and Analysis of Ultracool Dwarfs in the Deep Fields Open

C. Dominguez-Tagle, M. Žerjal, Nafise Sedighi, P. Mas-Buitrago, E. L. Martı́n , et al. · 2025

The Near-Infrared Spectrometer and Photometer on board the Euclid space mission has obtained near-infrared (NIR) slitless spectra of millions of objects, including hundreds of ultracool dwarfs (UCDs). Euclid observations retrieve images an…

J-PLUS: Understanding outlier white dwarfs in the third data release via dimensionality reduction Open

C. López-Sanjuán, Pier-Emmanuel Tremblay, A. del Pino, H. Domínguez Sánchez, H. Vázquez Ramió , et al. · 2025

Aims . We present the white dwarf catalog derived from the third data release of the Javalambre Photometric Local Universe Survey (J-PLUS DR3), which covers 3284 deg 2 using 12 optical filters. A particular focus is given to the classifica…

Benchmark brown dwarfs – I. A blue M2 + T5 wide binary and a probable young [M4 + M4] + [T7 + T8] hierarchical quadruple Open

Z. H. Zhang, Felipe Navarete, M. C. Gálvez-Ortiz, H. R. A. Jones, Adam J. Burgasser , et al. · 2025

Benchmark brown dwarfs in wide binary systems are crucial for characterizing substellar objects and calibrating atmospheric and evolutionary models. However, brown dwarf benchmarks with subsolar metallicity, very cool temperatures, or suit…

Photometric segregation of dwarf and giant FGK stars using the SVO Filter Profile Service and photometric tools (Corrigendum) Open

Carlos Rodrigo, P. Cruz, John F. Aguilar, A. Aller, E. Solano , et al. · 2025

Euclid Quick Data Release (Q1): A photometric search for ultracool dwarfs in the Euclid Deep Fields Open

M. Žerjal, Carlos Domínguez-Tagle, N Sedighi, E. L. Martín, N. Lodieu , et al. · 2025

We present a catalogue of more than 5000 new ultracool dwarf (UCD) candidates in the three Euclid Deep Fields in the Q1 data release. They range from late M to late T dwarfs, and include 1200 L and T dwarfs. More than 100 of them have been…

Non-invasive intracranial pressure monitoring in management of slit ventricle syndrome - Case report Open

Walter Fagundes, P. Cruz, Wander Valentim, Gustavo Frigieri, Wajid Majeed DANISH Mir · 2024

Slit ventricle syndrome (SVS) is condition of severe headaches, usually intermittent, suffered by patients after ventricular shunting for hydrocephalus with normal or smaller ventricle size, although in some cases the correct diagnosis and…

J-PLUS: Bayesian object classification with a strum of BANNJOS Open

Andrés del Pino, C. López-Sanjuán, A. Hernán-Caballero, H. Domínguez Sánchez, Rodrigo von Marttens , et al. · 2024

Context . With its 12 optical filters, the Javalambre-Photometric Local Universe Survey (J-PLUS) provides an unprecedented multicolor view of the local Universe. The third data release (DR3) covers 3192 deg 2 and contains 47.4 million obje…

J-PLUS: Beyond Spectroscopy. III. Stellar Parameters and Elemental-abundance Ratios for Five Million Stars from DR3 Open

Yang Huang, Timothy C. Beers, Kai Xiao, Haibo Yuan, Young Sun Lee , et al. · 2024

We present a catalog of stellar parameters (effective temperature T eff , surface gravity , age, and metallicity [Fe/H]) and elemental-abundance ratios ([C/Fe], [Mg/Fe], and [ α /Fe]) for some five million stars (4.5 million dwarfs and …

Euclid: Early Release Observations – A glance at free-floating newborn planets in the σ Orionis cluster Open

E. L. Martín, M. Žerjal, H. Bouy, D Martin-Gonzalez, S. Muñoz Torres , et al. · 2024

We provide an early assessment of the imaging capabilities of the Euclid space mission to deeply probe nearby star-forming regions and associated very young open clusters, and in particular, to determine to which extent it can shed light i…

J-PLUS: Beyond Spectroscopy III. Stellar Parameters and Elemental-abundance Ratios for Five Million Stars from DR3 Open

Yang Huang, Timothy C. Beers, Kai Xiao, Haibo Yuan, Young Sun Lee , et al. · 2024

We present a catalog of stellar parameters (effective temperature $T_{\rm eff}$, surface gravity $\log g$, age, and metallicity [Fe/H]) and elemental-abundance ratios ([C/Fe], [Mg/Fe], and [$α$/Fe]) for some five million stars (4.5 million…

The VISTA Variables in the Vía Láctea extended (VVVX) ESO public survey: Completion of the observations and legacy Open

R. K. Saito, M. Hempel, J. Alonso-García, P. W. Lucas, D. Minniti , et al. · 2024

Context. The ESO public survey VISTA Variables in the Vía Láctea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from 2009–2015. Upon its conclusion, the complementary VVV extended (VVVX) survey has expanded…

The VISTA Variables in the Vía Láctea eXtended (VVVX) ESO public survey: Completion of the observations and legacy Open

R. K. Saito, M. Hempel, J. Alonso-García, P. W. Lucas, D. Minniti , et al. · 2024

The ESO public survey VISTA Variables in the Vía Láctea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from $2009-2015$. Upon its conclusion, the complementary VVV eXtended (VVVX) survey has expanded both t…

Photometric segregation of dwarf and giant FGK stars using the SVO Filter Profile Service and photometric tools Open

Carlos Rodrigo, P. Cruz, John F. Aguilar, A. Aller, E. Solano , et al. · 2024

Aims. This paper is focused on the segregation of FGK dwarf and giant stars through narrow-band photometric data using the Spanish Virtual Observatory (SVO) Filter Profile Service and associated photometric tools. Methods. We selected spec…

Photometric segregation of dwarf and giant FGK stars using the SVO Filter Profile Service and photometric tools Open

Carlos Rodrigo, P. Cruz, John F. Aguilar, A. Aller, E. Solano , et al. · 2024

This paper is focused on the segregation of FGK dwarf and giant stars through narrow-band photometric data using the Spanish Virtual Observatory (SVO) Filter Profile Service and associated photometric tools. We selected spectra from the MI…

The evolution of lithium in FGK dwarf stars. Influence of planets and Galactic migration Open

F. Llorente de Andrés, R. de la Reza, P. Cruz, D. Cuenda-Muñoz, E. J. Alfaro , et al. · 2024

This work aims to investigate the behaviour of the lithium abundance in stars with and without detected planets. Our study is based on a sample of 1332 FGK main-sequence stars with measured lithium abundances, for 257 of which planets were…

The evolution of lithium in FGK dwarf stars Open

F. Llorente de Andrés, R. de la Reza, P. Cruz, D. Cuenda-Muñoz, E. J. Alfaro , et al. · 2024

This work aims to investigate the behaviour of the lithium abundance in stars with and without detected planets. Our study is based on a sample of 1332 FGK main-sequence stars with measured lithium abundances, for 257 of which planets were…

Substellar science in the wake of the ESA Euclid space mission Open

E. L. Martı́n, H. Bouy, Diego Martín, M. Žerjal, Jerry J. -Y. Zhang , et al. · 2023

The ESA space mission Euclid was launched on July 1st, 2023 and is undergoing its science verification phase. In this invited review we show that Euclid means a before and an after for our understanding of ultra-cool dwarfs and substellar-…

EP13.03-03 RWD of Atezolizumab Plus Chemotherapy in First Line SCLC Open

P. Cruz, L. Fernández Franco, Brigitte Montès, Sandra Falagán, L.E. Chara , et al. · 2023

White dwarf spectral type-temperature distribution from Gaia DR3 and the Virtual Observatory Open

Santiago Torres, P. Cruz, Raquel Murillo-Ojeda, F. Jiménez-Esteban, A. Rebassa–Mansergas , et al. · 2023

Context. The characterization of white dwarf atmospheres is crucial for accurately deriving stellar parameters such as effective temperature, mass, and age. However, the inclusion of physical processes such as convective mixing and convect…

White dwarf spectral type-temperature distribution from Gaia-DR3 and the Virtual Observatory Open

Santiago Torres, P. Cruz, Raquel Murillo-Ojeda, F. Jiménez-Esteban, A. Rebassa-Mansergas , et al. · 2023

The characterization of white dwarf atmospheres is crucial for accurately deriving stellar parameters such as effective temperature, mass, and age. We aim to classify the population of white dwarfs up to 500 pc into hydrogen-rich or hydrog…

The Calar Alto CAFOS Direct Imaging First Data Release Open

M. Cortés‐Contreras, E. Solano, Jaime Alonso-Hernández, N. Cardiel, P. Cruz , et al. · 2023

We present the first release of the Calar Alto CAFOS direct imaging data, a project led by the Spanish Virtual Observatory with the goal of enhancing the use of the Calar Alto archive by the astrophysics community. Data Release 1 contains …

Searching for the nature of stars with debris disks and planets Open

R. de la Reza, C. Chavero, S. Roca-Fàbrega, F. Llorente de Andrés, P. Cruz , et al. · 2023

The nature of the few known solar-mass stars simultaneously containing debris disks and planets remains an open question. A number of works have shown that this property appears to be independent of planetary masses as well as of stellar a…

M dwarf stars in the b294 field from the VISTA Variables in the Vía Láctea (VVV) Open

P. Cruz, M. Cortés‐Contreras, E. Solano, C. Rodrigo, D. Minniti , et al. · 2023

M dwarf stars are the dominant stellar population in the Milky Way, and they are important for a wide variety of astrophysical topics. The Gaia mission has delivered a superb collection of data, nevertheless, ground-based photometric surve…

M-dwarf stars in the b294 field from the VISTA Variables in the Vía Láctea (VVV) Open

P. Cruz, M. Cortés‐Contreras, E. Solano, C. Rodrigo, D. Minniti , et al. · 2023

M-dwarf stars are the dominant stellar population in the MilkyWay and they are important for a wide variety of astrophysical topics. The Gaia mission has delivered a superb collection of data, nevertheless, ground-based photometric surveys…

Spectral classification of the 100 pc white dwarf population from Gaia-DR3 and the virtual observatory Open

F. Jiménez-Esteban, Santiago Torres, A. Rebassa–Mansergas, P. Cruz, Raquel Murillo-Ojeda , et al. · 2022

The third data release of Gaia has provided low-resolution spectra for ∼100 000 white dwarfs (WDs) that, together with the excellent photometry and astrometry, represent an unrivalled benchmark for the study of this population. In this wor…

Photometric Masses of Eclipsing Binary Components Open

P. Cruz, Marcos P. Diaz, John F. Aguilar, H. E. Garrido, E. Solano · 2022

Eclipsing binaries allow the study of physical stellar parameters in a model-independent way, when photometric and spectroscopic data are combined. However, when spectroscopic data are not available, purely photometric methods can be adopt…

J-PLUS: Discovery and characterisation of ultracool dwarfs using Virtual Observatory tools Open

P. Mas-Buitrago, E. Solano, Ana González‐Marcos, C. Rodrigo, E. L. Martín , et al. · 2022

Context. Ultracool dwarfs (UCDs) comprise the lowest mass members of the stellar population and brown dwarfs, from M7 V to cooler objects with L, T, and Y spectral types. Most of them have been discovered using wide-field imaging surveys, …

Gaia 0007–1605: An Old Triple System with an Inner Brown Dwarf–White Dwarf Binary and an Outer White Dwarf Companion Open

A. Rebassa–Mansergas, Siyi Xu, R. Raddi, A. F. Pala, E. Solano , et al. · 2022

We identify Gaia 0007–1605 A,C as the first inner brown dwarf–white dwarf binary of a hierarchical triple system in which the outer component is another white dwarf (Gaia 0007–1605 B). From optical/near-infrared spectroscopy obtained at th…

Searching for detached EBs in large samples: the persistence of the radius anomaly in low-mass stars Open

P. Cruz, John F. Aguilar, H. E. Garrido, Marcos P. Diaz · 2021

The majority of the short-period low-mass eclipsing binaries in the literature, with orbital periods of less than 2 days, presents measured stellar radii that are usually 5 to 20% larger than the expected values when compared to stellar mo…

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