JA
J. Sánchez Almeida
astro-ph.GAastro-ph.COastro-phastro-ph.SRastro-ph.IMhep-phcs.LGastro-ph.HEhep-thphysics.data-an
On Valency
published · living versionsW_h4jxr79u·v1 · currentpublished
An Unusual Transient in the Extremely Metal-Poor Galaxy SDSS J094332.35+332657.6 (Leoncino Dwarf)
with Mercedes E. Filho
1 version
W_xhxevuuw·v1published
Preprints & journals
100 papers in the corpus · 1993–2026Ionized Gas Kinematics and Star-forming Clumps in Extremely Metal-poor Galaxies2610.27201v1 · Jyoti Yadav (IAC), Casiana Munoz Tun'on (IAC), Cecilia Farina et al.2026 · 0 citationsarXiv
Constraining the shape of dark matter haloes using only starlight II. Tests of the technique with objects of known gravitational potential2607.27001v1 · Jorge Sanchez Almeida, Angel R. Plastino, Sergio Guerra Arencibia et al.2026 · 0 citationsarXiv
Accurate inner stellar density slopes from projected surface densities in galaxies2606.01956v1 · Jorge Sanchez Almeida2026 · 0 citationsarXiv
Not So Isolated: Green Pea Galaxies in Overdense Environments revealed by VLT/MUSE2605.03676v1 · A. Arroyo-Polonio, J.M. V'ilchez, J. Iglesias-P'aramo et al.2026 · 0 citationsarXiv
The k-MENDEL sample of local analogs to reionization galaxies. Spectral identification of EELGs and properties of green peas in DESI2604.09516v1 · L. Bonatto, R. Amor'in, A. Gim'enez-Alc'azar et al.2026 · 0 citationsarXiv
JWST spectra are consistent with the edge-on star-forming galaxy scenario for the "runaway supermassive black hole"2602.10682v1 · Jorge Sanchez Almeida, Ignacio Trujillo, Sebastian F. Sanchez et al.2026 · 0 citationsarXiv
Search for Faint Lone Double-Peaked H Lines as IMBH Signatures in the MUSE Deep Field2602.02705v1 · Jyoti Yadav, Jorge S'anchez Almeida, Casiana Munoz Tun'on et al.2026 · 0 citationsarXiv
Beyond diagnostic-diagrams: A critical exploration on the classification of ionization processes2510.07256v1 · S. F. S'anchez, C. Munoz-Tun'on, J. S'anchez Almeida et al.2025 · 4 citationsA&A 704, A145 (2025)
Constraints on dark matter models from the stellar cores observed in ultra-faint dwarf galaxies: Self-interacting dark matter2510.05682v1 · Jorge Sanchez Almeida2025 · 2 citationsA&A 704, A210 (2025)
The slow evolution of dark matter halos from cusp to core naturally produces extended stellar core-like distributions2509.03167v1 · Jorge Sanchez Almeida (1, Angel R. Plastino, Ignacio Trujillo (12025 · 1 citationA&A 702, A113 (2025)
Fuzzy dark matter fails to explain the dark matter cores2502.12030v1 · Mar'ia Benito, Gert Hutsi, Kristjan Muursepp et al.2025 · 1 citationarXiv
Constraining the shape of dark matter haloes using only starlight. I. A new technique and its application to the galaxy Nube2501.13015v1 · Jorge Sanchez Almeida, Ignacio Trujillo, Mireia Montes et al.2025 · 2 citationsA&A 694, A283 (2025)
Implications of the intriguing constant inner mass surface density observed in dark matter halos2501.03761v1 · Jorge Sanchez Almeida (12025 · 3 citationsarXiv
Application of the Eddington inversion method to constrain the dark matter halo of galaxies using only observed surface brightness profiles2407.16519v1 · Jorge Sanchez Almeida (1, Angel R. Plastino, Ignacio Trujillo (12024 · 4 citationsA&A 690, A151 (2024)
The stellar distribution in ultra-faint dwarf galaxies suggests deviations from the collision-less cold dark matter paradigm2407.16755v1 · Jorge Sanchez Almeida (1, Ignacio Trujillo (1, Angel R. Plastino2024 · 0 citationsarXiv
Einasto gravitational potentials have difficulty to hold spherically symmetric stellar systems with cores2406.13613v1 · Jorge Sanchez Almeida (12024 · 2 citationsarXiv
Deep HST imaging favors the bulgeless edge-on galaxy explanation for the hypothetical stellar wake created by a runaway supermassive black hole2406.00102v1 · Mireia Montes (IAC/ULL), Jorge S'anchez Almeida (IAC/ULL), Ignacio Trujillo (IAC/ULL)2024 · 3 citationsarXiv
More fundamental than the fundamental metallicity relation: The effect of the stellar metallicity on the gas-phase mass-metallicity and gravitational potential-metallicity relations2402.01222v1 · Laura S'anchez-Menguiano, Sebasti'an F. S'anchez, Jorge S'anchez Almeida et al.2024 · 0 citationsarXiv
Stellar mass is not the best predictor of galaxy metallicity. The gravitational potential-metallicity relation 2312.02046v1 · Laura S'anchez-Menguiano, Jorge S'anchez Almeida, Sebasti'an F. S'anchez et al.2023 · 0 citationsarXiv
The WHaD diagram: Classifying the ionizing source with one single emission line2311.10573v1 · S. F. S'anchez, A. Z. Lugo-Aranda, J. S'anchez Almeida et al.2023 · 0 citationsarXiv
Supermassive black hole wake or bulgeless edge-on galaxy? II: Order-of-magnitude analysis of the two physical scenarios2309.02494v1 · J. Sanchez Almeida (12023 · 0 citationsarXiv
The PAU Survey: Classifying low-z SEDs using Machine Learning clustering2307.13840v1 · A.L. Gonz'alez-Mor'an, P. Arrabal Haro, C. Mun'oz-Tun'on et al.2023 · 1 citationarXiv
Can cuspy dark matter dominated halos hold cored stellar mass distributions?2307.01256v1 · Jorge Sanchez Almeida (1, Angel R. Plastino, Ignacio Trujillo (12023 · 11 citationsarXiv
Super-massive black hole wake or bulgeless edge-on galaxy?2304.12344v1 · Jorge Sanchez Almeida (1, Mireia Montes (1, Ignacio Trujillo (12023 · 9 citationsA&A 673, L9 (2023)
Spatially-resolved chemodynamics of the starburst dwarf galaxy CGCG 007-025: Evidence for recent accretion of metal-poor gas2212.10585v2 · M. G. del Valle-Espinosa, R. Sanchez-Janssen, R. Amorin et al.2022 · 20 citationsarXiv
Hubble Space Telescope Observations of Tadpole Galaxies Kiso 3867, SBS0, SBS1, and UM4612211.09292v1 · Debra Meloy Elmegreen, Bruce G. Elmegreen, John S. Gallagher et al.2022 · 1 citationarXiv
Dwarf galaxies with central cores in modified Newtonian dynamics (MOND) gravity2209.12547v1 · J. Sanchez Almeida (12022 · 5 citationsarXiv
Discovery of faint double-peak Halpha emission in the halo of low redshift galaxies2205.12782v1 · J. Sanchez Almeida (1, J. Calhau (1, C. Munoz-Tunon (1 et al.2022 · 5 citationsarXiv
The principle of maximum entropy and the distribution of mass in galaxies2203.04150v1 · J. Sanchez Almeida (12022 · 16 citationsarXiv
Physically motivated fit to mass surface density profiles observed in galaxies2109.02615v1 · J. Sanchez Almeida (1, I. Trujillo (1, A.R. Plastino2021 · 8 citationsarXiv
History of the gas fuelling star formation in eagle galaxies2106.02478v1 · L. Scholz-Diaz (1, J. Sanchez Almeida (1, C. Dalla Vecchia (12021 · 10 citationsarXiv
Numerical simulations of dark matter haloes produce polytropic central cores when reaching thermodynamic equilibrium2104.08055v1 · Jorge Sanchez Almeida, Ignacio Trujillo2021 · 10 citationsarXiv
Extreme Emission-Line Galaxies in SDSS. I. Empirical and model-based calibrations of chemical abundances2103.10464v1 · E. P'erez-Montero, R. Amor'in, J. S'anchez Almeida et al.2021 · 50 citationsarXiv
Evidence for the Accretion of Gas in Star-Forming Galaxies: High N/O Abundances in Regions of Anomalously-Low Metallicity2012.04073v1 · Yuanze Luo, Timothy Heckman, Hsiang-Chih Hwang et al.2020 · 22 citationsarXiv
The principle of maximum entropy explains the cores observed in the mass distribution of dwarf galaxies2009.08994v1 · Jorge Sanchez Almeida, Ignacio Trujillo, Angel Ricardo Plastino2020 · 14 citationsA&A 642, L14 (2020)
White Paper on MAAT@GTC2007.01603v2 · Francisco Prada, Robert Content, Ariel Goobar et al.2020 · 3 citationsarXiv
Analysis of the galaxy size versus stellar mass relation2004.09433v1 · J. Sanchez Almeida2020 · 12 citationsarXiv
Triaxiality can explain the alleged dark matter deficiency in some dwarf galaxies1912.05268v1 · J. Sanchez Almeida, M. Filho2019 · 5 citationsarXiv
Machine learning in APOGEE: Identification of stellar populations through chemical abundances1907.12796v1 · Rafael Garcia-Dias, Carlos Allende Prieto, Jorge S'anchez Almeida et al.2019 · 18 citationsA&A 629, A34 (2019)
A contribution of star-forming clumps and accreting satellites to the mass assembly of z ~ 2 galaxies1907.12136v1 · A. Zanella, E. Le Floc'h, C. M. Harrison et al.2019 · 76 citationsarXiv
The fundamental metallicity relation emerges from the local anti-correlation between star formation rate and gas-phase metallicity existing in disk galaxies1905.05826v1 · J. Sanchez Almeida, L.Sanchez-Menguiano2019 · 23 citationsarXiv
Stellar content, planetary nebulae, and globular clusters of [KKS2000]04 (NGC1052-DF2)1903.09163v2 · T. Ruiz-Lara, I. Trujillo, M. A. Beasley et al.2019 · 22 citationsarXiv
Anomalously low metallicity regions in MaNGA star-forming galaxies: Accretion Caught in Action?1812.04614v1 · Hsiang-Chih Hwang, Jorge K. Barrera-Ballesteros, Timothy M. Heckman et al.2018 · 54 citationsarXiv
Global Correlations Between the Radio Continuum, Infrared and CO Emission in Dwarf Galaxies1811.06577v1 · Mercedes E. Filho, Fatemeh S. Tabatabaei, Jorge Sanchez Almeida et al.2018 · 11 citationsarXiv
A headless tadpole galaxy: the high gas-phase metallicity of the ultra-diffuse galaxy UGC 21621810.08453v1 · J. Sanchez Almeida (1, A. Olmo-Garcia (1, B. G. Elmegreen et al.2018 · 4 citationsarXiv
A distance of 13 Mpc resolves the claimed anomalies of the galaxy lacking dark matter1806.10141v2 · Ignacio Trujillo, Michael A. Beasley, Alejandro Borlaff et al.2018 · 153 citationsarXiv
An Unusual Transient in the Extremely Metal-Poor Galaxy SDSS J094332.35+332657.6 (Leoncino Dwarf)1804.11166v1 · Mercedes E. Filho, J. S'anchez Almeida2018 · 6 citationsarXivon Valency
Local anti-correlation between star-formation rate and gas-phase metallicity in disk galaxies1802.08111v1 · J. Sanchez Almeida, N. Caon, C. Munoz-Tunon et al.2018 · 31 citationsarXiv
Machine learning in APOGEE: Unsupervised spectral classification with -means1801.07912v2 · Rafael Garcia-Dias, Carlos Allende Prieto, Jorge S'anchez Almeida et al.2018 · 23 citationsA&A 612, A98 (2018)
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment1707.09322v3 · Bela Abolfathi, D. S. Aguado, Gabriela Aguilar et al.2017 · 683 citationsarXivon Valency
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