F. J. Galindo-Guil
A5077124890- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
- Astrophysics and Cosmic Phenomena
- Astro and Planetary Science
- Adaptive optics and wavefront sensing
- Particle Accelerators and Free-Electron Lasers
- Gyrotron and Vacuum Electronics Research
- Astronomical Observations and Instrumentation
- Spaceflight effects on biology
- Galaxies: Formation, Evolution, Phenomena
- Isotope Analysis in Ecology
- Astrophysical Phenomena and Observations
- Radio Astronomy Observations and Technology
- Space Science and Extraterrestrial Life
- Nuclear Physics and Applications
- Dark Matter and Cosmic Phenomena
- Precipitation Measurement and Analysis
- SAS software applications and methods
- Space Exploration and Technology
- Particle Detector Development and Performance
- Big Data and Business Intelligence
- Pulsars and Gravitational Waves Research
- Solar and Space Plasma Dynamics
Centro de Estudios de Física del Cosmos de Aragón
2022-2024
Nordic Optical Telescope
2019-2022
Centro de Astrobiología
2016-2019
Isaac Newton Group
2019
Stellar ages are key to improving our understanding of different astrophysical phenomena. However, many techniques estimate stellar highly model-dependent. The lithium depletion boundary (LDB), based on the presence or absence in low-mass stars, can be used derive associations between 20 and 500~Ma. purpose this work is revise former LDB a consistent way, taking advantage homogeneous \textit{Gaia} parallaxes as well bolometric luminosity estimations that do not rely monochromatic...
Abstract We present a catalog of stellar parameters (effective temperature T eff , surface gravity <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>log</mml:mi> <mml:mi>g</mml:mi> </mml:math> age, and metallicity [Fe/H]) elemental-abundance ratios ([C/Fe], [Mg/Fe], [ α /Fe]) for some five million stars (4.5 dwarfs 0.5 giant stars) in the Milky Way, based on colors from Javalambre Photometric Local Universe Survey (J-PLUS) DR3 Gaia EDR3. These estimates are...
Context. The absolute magnitudes of luminous red novae (LRNe) are intermediate between those and supernovae (SNe), show a relatively homogeneous spectro-photometric evolution. Although they were thought to derive from core instabilities in single stars, there is growing support for the idea that triggered by binary interaction possibly ends with merging two stars. Aims. AT 2018hso new transient showing transitional properties LRNe class intermediate-luminosity transients (ILRTs) similar SN...
Trans-Neptunian objects (TNOs) are icy bodies located in the outer solar system that offer key insights into primordial conditions of our planetary system. The stellar occultation technique has proven to be an essential tool for studying these distant and faint objects, enabling precise determinations their size, shape, albedo, while also improving estimates orbital parameters. Among them, (119951) 2002 KX14 is a large classical TNO with limited previous observations unresolved questions...
WASP-12b is one of the most well-studied transiting exoplanets, as its highly-inflated radius and 1.1 day orbit around a G0-type star make it an excellent target for atmospheric categorisation through observation during secondary eclipse. We present two new eclipse observations WASP-12b, acquired year apart with Wide Field Camera on Isaac Newton Telescope (INT) IO:O instrument Liverpool (LT). These were conducted in $i^\prime$-band, window expected to be dominated by TiO features if...
In this study we present the results of a five-year follow-up campaign long-lived type IIn supernova SN 2017hcc, found in spiral dwarf host near-solar metallicity. The long rise time (57 $\pm$ 2 days, ATLAS $o$ band) and high luminosity (peaking at $-$20.78 0.01 mag point towards an interaction massive ejecta with dense circumstellar material (CSM). evolution 2017hcc is slow, both spectroscopically photometrically, reminiscent IIn, 2010jl. An infrared (IR) excess was apparent soon after...
ABSTRACT The Javalambre Photometric Local Universe Survey (J-PLUS) is a 12-band photometric survey using the 83-cm JAST telescope. Data Release 3 includes 47.4 million sources. J-PLUS DR3 only provides star-galaxy classification so that quasars are not identified from other Given size of data set, machine learning methods could provide valid alternative and solution to quasars. Our objective classify sources into galaxies, stars, quasars, outperforming available classifiers in each class. We...
Context. The BL Lac object 3C 371 was observed by the Transiting Exoplanet Survey Satellite (TESS) for approximately a year, between July 2019 and 2020, with an unmatched two-minute imaging cadence. In parallel, Whole Earth Blazar Telescope (WEBT) Collaboration organized extensive observing campaign, providing three years of continuous optical monitoring 2018 2020. These datasets allow thorough investigation variability source. Aims. goal this study is to evaluate 371. Taking advantage...
The BL Lac object 3C 371 has been observed by the Transiting Exoplanet Survey Satellite (\textit{TESS}) for approximately a year, between July 2019 and 2020, with an unmatched 2-minute observing cadence. In parallel, Whole Earth Blazar Telescope (WEBT) Collaboration organized extensive campaign, providing three years of continuous optical monitoring 2018 2020. These datasets allow thorough investigation variability source. goal this study is evaluating 371. Taking advantage remarkable...
We present the overview and first results from North-PHASE Legacy Survey, which follows six young clusters for five years, using 2 deg$^2$ FoV of JAST80 telescope Javalambre Observatory (Spain). investigates stellar variability on timescales days to years thousands stars distributed over entire clusters. This allows us find new YSO, characterise accretion study inner disk evolution within cluster context. Each region (Tr37, CepOB3, IC5070, IC348, NGC2264, NGC1333) is observed in filters...
ABSTRACT We present the overview and first results from North-PHASE Legacy Survey, which follows six young clusters for five years, using 2 deg$^2$ FoV of JAST80 telescope Javalambre Observatory (Spain). investigates stellar variability on time-scales days to years thousands stars distributed over entire clusters. This allows us find new YSO, characterize accretion, study inner disc evolution within cluster context. Each region (Tr 37, Cep OB3, IC 5070, 348, NGC 2264, 1333) is observed in...
The Observatorio Astrofísico de Javalambre (OAJ<sup>†1</sup> ) in Spain is a young astronomical facility, conceived and developed from the beginning as fully automated observatory with main goal of optimizing processes scientific general operation Observatory. OAJ has been particularly for carrying out large sky surveys two unprecedented telescopes unusually fields view: JST/T250, 2.55 m telescope 3 deg field view, JAST/T80, an 83 cm 2 view. most immediate objective next years unique...
The BL Lac object 3C 371 is one of the targets that are regularly monitored by Whole Earth Blazar Telescope (WEBT) Collaboration to study blazar variability on both short and long timescales. We aim evaluate long-term multiwavelength (MWL) behaviour 371, comparing it with results derived for its optical emission in our previous study. For this, we make use multi-band campaigns organized WEBT radio between January 2018 December 2020, public data from Swift Fermi satellites MOJAVE Very Large...
The BL Lac object 3C 371 is one of the targets regularly monitored by Whole-Earth Blazar Telescope (WEBT), a collaboration observers studying blazar variability on both short and long timescales. We aim to evaluate long-term multi-wavelength (MWL) behaviour 371, comparing it with results derived from its optical emission in our previous study. For this, we make use multi-band campaigns organised WEBT radio between January 2018 December 2020, public data Swift Fermi satellites MOJAVE Very...
We present a catalog of stellar parameters (effective temperature $T_{\rm eff}$, surface gravity $\log g$, age, and metallicity [Fe/H]) elemental-abundance ratios ([C/Fe], [Mg/Fe], [$\alpha$/Fe]) for some five million stars (4.5 dwarfs 0.5 giants stars) in the Milky Way, based on colors from Javalambre Photometric Local Universe Survey (J-PLUS) DR3 \textit{Gaia} EDR3. These estimates are obtained through construction large spectroscopic training set with abundances adjusted to uniform...
ABSTRACT High-velocity stars in the Milky Way are related to extreme astrophysical phenomena. In this work, we characterize 28 with Galactocentric velocities higher than 400 $\mathrm{km\, s^{-1}}$ observed Javalambre Photometric Local Universe Survey Data Release 2 (J-PLUS DR2) survey. We combine J-PLUS photometry astrometric data from Gaia DR3 catalogue analyse kinematics, dynamics, and fundamental stellar parameters of these stars. Our results indicate that most have typical behaviour...
The Observatorio Astrofísico de Javalambre (OAJ†1 ) in Spain is a young astronomical facility, conceived and developed from the beginning as fully automated observatory with main goal of optimizing processes scientific general operation Observatory. OAJ has been particularly for carrying out large sky surveys two unprecedented telescopes unusually fields view (FoV): JST/T250, 2.55m telescope 3deg field view, JAST/T80, an 83cm 2deg view. most immediate objective next years unique photometric...