57 citations · 295 across the 36 of their papers we have counts for
39 papers
AI and The Enclosure of the Scientific Commons
P. K. G. Williams
The scientific literature can be viewed as an "information commons:" an intangible resource that "no one owns and is shared by everyone." There are well-established economic and po…
The bar-driven central complex of NGC 6946: A panchromatic and spatially resolved view of its star formation history and interstellar medium
Santiago Álvarez-Córdoba, Jacopo Fritz, M. A. Lara-López +14
We present a multi-wavelength analysis of the nearby spiral galaxy NGC 6946, combining optical IFS, infrared, and radio observations. We aim to characterise both the integrated and…
Dynamics of tidal dwarf galaxies in the system Arp 72
Osvan M. Portilla-Narvaez, Javier Zaragoza-Cardiel, Gisela N. Ortiz-León +6
Some interactions between galaxies produce tidal tails primarily composed of material from their disks. Within these tails, concentrations of gas and stars can form, resembling dwa…
J-PAS & FLAMINGO: Cosmic voids and void galaxies in the gravitational landscape of photometric surveys
J. A. Mansour, B. McCarthy, L. J. Liivamägi +34
Photometric surveys offer a powerful way to map the large-scale structure of the Universe, but their redshift errors complicate the identification of cosmic voids, challenging stud…
J-PLUS: Spectral classification and photometric redshifts for 79 million sources in the fourth data release
A. Hernán-Caballero, H. Vázquez Ramió, C. López-Sanjuan +20
We present spectral classifications and photometric redshifts for 79.2 million sources up to an r-band magnitude of 22 in Data Release 4 of the Javalambre Photometric Local Univers…
Size, shape, density, and atmospheric limit of (50000) Quaoar revealed from 14 years of stellar occultation
Giuliano Margoti, Felipe Braga-Ribas, José Luis Ortiz +173
We present results from 28 stellar occultations by the large Trans-Neptunian Object (50000) Quaoar registered between 2018 and 2025. By performing a joint analysis of this occultat…
OJALÁ: Optimizing J-PAS Astronomy for Large-scale Analysis. A foundation model for the SED of galaxies, QSOs and stars
G. Martínez-Solaeche, R. M. González Delgado, R. García-Benito +37
The advent of large-scale surveys requires efficient ML techniques to exploit the information of massive datasets. We present OJALA, a transformer-based autoregressive foundation m…
J-PAS: Semi-Supervised Sim-to-Obs Transfer for Robust Star--Galaxy--Quasar Classification
Daniel López-Cano, L. Raul Abramo, L. Nakazono +28
Modern studies in astrophysics and cosmology increasingly rely on simulations and cross-survey analyses, yet differences in data generation, instrumentation, calibration, and unmod…
The LMT 2 millimeter receiver system (B4R). II. Science demonstration observations toward Orion-KL/OMC-1
Teppei Yonetsu, Ryohei Kawabe, Yuki Yoshimura +26
We present the results of mapping and single-point spectral scans toward Orion-KL/OMC-1 performed as science demonstrations of a 2 mm SIS receiver, the Band 4 Receiver (B4R), insta…
J-PAS: A value-added catalogue of optical line intensities for nebular emission galaxies (JOLINES)
J. A. Fernández-Ontiveros, C. López-Sanjuan, A. Hernán-Caballero +38
We present the value-added catalogue JOLINES (J-PAS optical line intensities for nebular emission galaxies), which provides emission-line fluxes in galaxies at from the spectrophot…
The LMT 2 Millimeter Receiver System (B4R). I. Overview and Results of Science Demonstration
Ryohei Kawabe, Takeshi Sakai, Kunihiko Tanaka +30
We report on the results of the on-sky test and science demonstration conducted with the 2 mm receiver system, B4R, on the 50 m Large Millimeter Telescope (LMT), located at an alti…
The miniJPAS and J-NEP surveys: Machine learning for star-galaxy separation
Ana Paula Jeakel, Gabriel Vieira dos Santos, Valerio Marra +27
We present a supervised machine learning classification of sources from the Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) Pathfinder datasets: miniJP…
J-PAS: forecast on the primordial power spectrum reconstruction
Guillermo Martínez-Somonte, Airam Marcos-Caballero, Enrique Martínez-González +27
We investigate the capability of the J-PAS survey to constrain the primordial power spectrum using a non-parametric Bayesian method. Specifically, we analyze simulated power spectr…
Metal-THINGS: gas metallicity gradients in nearby galaxies
Guillermo Valé, Maritza A. Lara-López, Mabel Valerdi +13
This paper explores the gas metallicity gradients in a sample of 25 nearby galaxies using new Integral Field Spectroscopy observations from the Metal-THINGS survey. We derive and s…
Metal-THINGS: The Milky Way twin candidate NGC 3521
L. S. Pilyugin, M. A. Lara-Lopez, G. Tautvaisiene +6
The 3D spectrophotometry measurements of the galaxy NGC~3521, a structural Milky Way analogue (sMWA), were carried out within the Metal-THINGS project. We found that the oxygen abu…
Detection and characterization of detached tidal dwarf galaxies
Javier Zaragoza-Cardiel, Beverly J. Smith, Mark G. Jones +7
Tidal interactions between galaxies often give rise to tidal tails, which can harbor concentrations of stars and interstellar gas resembling dwarf galaxies. Some of these tidal dwa…
Chemical abundances and ionizing mechanisms in the star-forming double-ring of AM 0644-741 using MUSE data
V. M. A. Gómez-González, Y. D. Mayya, J. Zaragoza-Cardiel +6
We present the analysis of archival Very Large Telescope (VLT) Multi-Unit Spectroscopic Explorer (MUSE) observations of 179 HII regions in the star-forming double-ring collisional…
What holes in the gas distribution of nearly face-on galaxies can tell us about the host disk parameters: the case of the NGC 628 South-East superbubble
S. Jiménez, S. Silich, Y. D. Mayya +1
Here we explore the impact of all major factors, such as the non-homogeneous gas distribution, galactic rotation and gravity, on the observational appearance of superbubbles in nea…
Metal-THINGS: a panchromatic analysis of the local scaling relationships of the dwarf irregular galaxy NGC 1569
L. E. Garduño, J. Zaragoza-Cardiel, M. A. Lara-López +12
We investigate several panchromatic scaling relations (SRs) for the dwarf irregular galaxy NGC 1569 using IFU data from the Metal-THINGS Survey. Among the spatially resolved proper…
The massive relic galaxy NGC 1277 is dark matter deficient. From dynamical models of integral-field stellar kinematics out to five effective radii
Sébastien Comerón, Ignacio Trujillo, Michele Cappellari +7
According to the CDM cosmology, present-day galaxies with stellar masses should contain a sizable fraction of dark matter within their stellar bo…
The stellar population responsible for a kiloparsec size superbubble seen in the JWST "phantom" images of NGC628
Y. D. Mayya, J. A. Alzate, L. Lomelí-Núñez +11
We here study the multi-band properties of a kiloparsec-size superbubble in the late-type spiral galaxy NGC628. The superbubble is the largest of many holes seen in the early relea…
Detection of He++ ion in the star-forming ring of the Cartwheel using MUSE data and ionizing mechanisms
Y. D. Mayya, A. Plat, V. M. A. Gómez-González +3
We here report the detection of the nebular HeII4686 line in 32 HII regions in the metal-poor collisional ring galaxy Cartwheel using the Multi-Unit Spectroscopic Explorer (MUSE) d…
Spatially-resolved properties of the ionized gas in the HII galaxy J084220+115000
D. Fernández-Arenas, E. Carrasco, R. Terlevich +20
We present a spatially resolved spectroscopic study for the metal poor HII galaxy J084220+115000 using MEGARA Integral Field Unit observations at the Gran Telescopio Canarias. We e…
Metal-THINGS: The association and optical characterization of SNRs with HI holes in NGC 6946
M. A. Lara-Lopez, L. S. Pilyugin, J. Zaragoza-Cardiel +9
NGC~6946, also known as the `Fireworks' galaxy, is an unusual galaxy that hosts a total of 225 supernova remnant (SNR) candidates, including 147 optically identified with high [SII…