Conveners
Parallel Astro: LIA 4 block 1
- Francisco Javier (Patxi) Casas (IFCA)
Parallel Astro: LIA 4 block 2
- Francisco Javier (Patxi) Casas (IFCA)
Parallel Astro: LIA 4 block 3
- Carlos Lopez Sanjuan
Parallel Astro: LIA2
- Ignacio Mateos
Parallel Astro: LIA 4 block 4
- Antonio J. Cuesta (Universidad de Cordoba (Spain))
Parallel Astro: LIAs 2 y 7
- Jesus Aceituno Castro (Centro Astronómico Hispano en Andalucía (CAHA))
Parallel Astro: LIA 8 y 3
- Jose Enrique Garcia Navarro (Univ. of Valencia and CSIC (ES))
We present a transformer-based autoregressive foundation model specifically designed to analyze narrow-band photometry from the Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS), simulated using 18 million spectra from the Dark Energy Spectroscopic Instrument (DESI). By crossmatching DESI value-added catalogs, our model incorporates detailed stellar population...
Understanding how the Milky Way formed and evolved is a central goal of Galactic archaeology. In this talk, I will present our published results on the star-formation history of the Galactic disc based on multi-filter photometry from the J-PLUS survey combined with Gaia astrometry. Our analysis showed clear differences between the chemically distinct components of the disc and provides clear...
In the paper (in preparation) presented here, we characterize the origin of the optical emission from the ionized gas in the cluster Abell 2390, which is included in the CATARSIS galaxy cluster catalog (the Calar Alto “Tetra-ARmed Super-Ifu spectrograph” Survey). We carried out this analysis using 2D spectroscopy with the MUSE instrument on the Very Large Telescope (VLT), together with data...
Summary talk about J-PAS activities, highlighting PPCC-funded results, during the LIA4 plennary session.
Funding from the "Planes Complementarios de I+D+I en Astrofísica y Física de Altas Energías (Marco de Recuperación y Resiliencia)" has led to a profound transformation in how Astrophysics and Cosmology are conducted at the Universidad de Córdoba. Our project, "Análisis de la estadística de la distribución de galaxias en la estructura a gran escala mediante grandes cartografiados astronómicos",...
We present J-HERTz (J-PLUS Heritage Exploration of Radio Targets at z < 5), a new multi-wavelength catalog combining optical narrow-band filter observations from the Javalambre Photometric Local Universe Survey (J-PLUS) with low-frequency radio data from the LOFAR Two-Metre SKy Survey (LoTSS), and infrared detections from WISE for 500,000 sources over 2100 deg² in the northern sky. The catalog...
This project is part of Línea 4.4: Grandes cartografiados astronómicos.
The Calar Alto Void Integral-field Treasury surveY, CAVITY, is a Legacy project of the Calar Alto Observatory for the coming years. It is generating the first statistically complete data set of galaxies in voids exploring the mass assembly, dark and baryonic, and gas properties of galaxies inhabiting these very low...
Extreme emission line galaxies (EELGs) constitute a population of unique systems undergoing very intense events of star formation. These objects are very rare in our immediate environment, but they are crucial for understanding the physical limits of star formation, and most importantly, the formation of the first galaxies, during the early history of the Universe. While EELGs were abundant...
We evaluate the capability of the J-PAS survey to constrain the primordial power spectrum using a non-parametric Bayesian reconstruction approach. Simulated spectra are generated with localized oscillatory features—motivated by non-standard inflationary scenarios—and analyzed over the range $k \in [0.02,0.2] \text{ h } \mathrm{Mpc}^{-1}$, where J-PAS offers optimal sensitivity and...
During the last two and a half years we have explored how the Javalambre surveys (primarily J-VAR, the time-domain extension of J-PLUS) together with J-PLUS itself, can be used for Solar System science. Thanks to their wide coverage and multi-filter strategy we have recovered data for more than 17,000 small bodies, most of them located in the Main Belt. From J-VAR DR1 alone we compiled a...
The Calar Alto Observatory (CAHA) in collaboration with IAA-CSIC have initiated the MARCOT project (Multi Array of Combined Telescopes) as a strategic step towards the next generation of large-size optical facilities. MARCOT aims to explore modular architectures for combined telescopes, providing enhanced flexibility, scalability, and cost-efficiency for future astronomical...
En el marco del Plan de Recuperación, Transformación y Resiliencia (PRTR), la Universidad de Jaén (UJA) ha desarrollado su labor dentro de la Actuación 4.6 “CTA Galactic Plane Survey y su seguimiento multifrecuencia”, mediante dos contrataciones que han permitido consolidar su participación en las colaboraciones internacionales CTA (Cherenkov Telescope Array) y LST (Large Size Telescope),...
The PLATO mission will discover thousands of planetary systems by means of the transit method. These new systems will have to be confirmed with additional observations from ground observatories in order to discard false positive scenarios, and such additional observations will also be critical to further characterise the properties of the exoplanets such as their mass. To achieve this goal,...
We investigated the strong gravitational lensing properties of fuzzy dark matter (FDM) haloes, focussing on the magnification properties near radial critical curves (CCs). Using simulated lenses, we computed magnification maps for a range of axion masses and halo configurations. We show that FDM produces enhanced central magnification and secondary CCs that are not easily reproduced by...
Unexpected anomalies have been identified in the WMAP and Planck cosmic microwave background (CMB) temperature data, showing a mild tension with the remarkably successful ΛCDM model. However, their statistical significance is not sufficient to distinguish between a genuine departure from ΛCDM and the possibility of observing a rare realisation of the CMB, where those anomalies are merely...
The Javalambre Photometric Local Universe Survey (J-PLUS) and the Javalambre Physics of the Accelerated Universe Astrophysical Survey (J-PAS) are two northern sky surveys conducted with the 80 cm and 250 cm telescopes at the Javalambre Astrophysical Observatory. Using these surveys, We present wide-field narrow-band imaging studies of emission-line galaxies to study their extended...
In this presentation, we will summarize the activities carried out at CEFCA within the framework of LA2, whose objective has been to support the completion of JPCam, the 1.2 Gpix panoramic camera integrated on the JST250 telescope at the ICTS Observatorio Astrofísico de Javalambre (OAJ), and to initiate scientific operations, starting with the J-PAS survey observations.
El proyecto “Desarrollo tecnológico y preparación para la explotación científica de Athena X-IFU” surgió con el objetivo de contribuir al desarrollo del instrumento X-IFU, un espectrógrafo calorímetro de rayos X integrado en el telescopio espacial NewAthena de la Agencia Europea del Espacio mediante el desarrollo del simulador científico y de herramientas avanzadas de análisis espectral y...
As ultra-high resolution thermometry gains prominence in fields of experimental and applied physics, the demand for diverse and innovative technologies becomes imperative. This is particularly crucial as applications extend to lower frequency windows, as exemplified by space-borne gravitational wave observatorieslike LISA (Laser Interferometer Space Antenna), operating in the Hz-mHz window. To...
The European Solar Telescope (EST) will be equipped with a suite of state-of-the-art instruments designed to observe the solar atmosphere at high spatial and temporal resolution. Among them are three Tunable-Imaging Spectropolarimeters/Fixed-Band Imagers (TIS/FBIs) that will provide diffraction-limited measurements of photospheric and chromospheric magnetic fields over large fields of view....
In the era of large astronomical spectroscopic surveys, automated analysis tools have become a necessity. Unfortunately, the analysis of very luminous stars presents many challenges not encountered with solar-type stars. To overcome these difficulties, we have created a large, interactive online database, Astro+, at the University of Alicante. Astro+ is designed to gather large samples of...
Within the framework of the "Plan Complementario de Astrofísica y Física de Altas Energías", the Instituto de Astrofísica de Andalucía (IAA-CSIC) has led the design and development of a miniaturized wide-angle CMOS space camera for upcoming space and interplanetary missions. Building on the know-how gained through participation in ESA’s Fast-Class (F-type) missions, the project capitalizes on...
This work presents the design, development, and experimental validation of a Power Conditioning and Distribution Unit (PCDU) for a 6U CubeSat platform intended for deep-space missions. The proposed architecture adheres to the “New Space” paradigm, aiming to minimize development time and cost while maintaining high reliability and robustness. To achieve this, the system has been entirely...
Multimessenger astronomy is an emerging field that combines observations from different sources of cosmic events, such as gravitational waves, photons and neutrinos. This approach provides a new framework for investigating the origin and underlying mechanisms of energetic astrophysical events. By integrating complementary observational perspectives, it becomes possible to explore different...
The project ‘Technological development and preparation for the scientific exploitation of Athena X-IFU’ was created with the aim of contributing to the development of the X-IFU instrument, an X-ray calorimeter spectrograph integrated into the European Space Agency's NewAthena space telescope, through the development of the scientific simulator and advanced spectral and temporal analysis tools....
