13 citations · 34 across the 19 of their papers we have counts for
20 papers
GPUPHOT: A Python Framework for High-Performance GPU-Accelerated Photometry and Distributed Astronomical Data Reduction
Samuel Lemes-Perera, Miguel R. Alarcon, Miquel Serra-Ricart +1
We present GPUPHOT, an open-source Python framework for GPU-accelerated real-time photometry and astrometry of astronomical CCD and scientific CMOS images. Four of its seven stages…
Long-baseline ATLAS photometry of the seven main-belt asteroid targets of the Emirates Mission to the Asteroid Belt
Nicolas Erasmus, Josef Ďurech, David E. Trilling +6
The Emirates Mission to the Asteroid Belt (EMA) will use the MBR Explorer spacecraft to fly past six main-belt asteroids -- (10253) Westerwald, (623) Chimaera, (13294) Rockox, (880…
Serendipitous discovery of an almost-dark galaxy in the Virgo Cluster
Minh Ngoc Le, Ignacio Trujillo, Sergio Guerra Arencibia +9
Analogues of extreme Local Group galaxies with very low surface brightnesses and large effective radii must exist elsewhere, still hidden due to current detection limits. We report…
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…
Dust colour, phase behaviour, and Monte Carlo modelling of interstellar comet 3I/ATLAS from 4 au pre- to 4 au post-perihelion
F. Moreno, M. Serra-Ricart, J. Licandro +4
We report multi-band photometric imaging observations and Monte Carlo dust tail modelling of the interstellar comet 3I/ATLAS covering a wide range of heliocentric distances, from a…
The explosive growth of the Messier 74 galaxy. A galaxy doubling its size in less than a Gigayear
Ignacio Ruiz Cejudo, Ignacio Trujillo, Sergio Guerra Arencibia +3
Galaxy formation models predict that galaxies grow inside-out, becoming larger over time. While observations broadly support this paradigm, the nature and timescales of this growth…
The flash-ionised SN Ibn 2025kzr: H-free CSM formed during a precursor outburst 55 days prior to explosion
S. de Wet, G. Leloudas, D. A. H. Buckley +33
Type Ibn supernovae (SNe) are a class of interacting SNe characterised by narrow helium lines in their spectra. We present an extensive observational dataset of the Type Ibn SN 202…
Accessible does not mean exploitable: HiPERCAM reveals the ultra-fast rotation of 2022 OB
Miguel R. Alarcon, Javier Licandro, Miquel Serra-Ricart +2
2022 OB is a sub-10-metre Apollo-type near-Earth asteroid whose orbital configuration placed it among the most dynamically accessible small bodies in near-Earth space, motivati…
Spin Parameters and Shape Models of Near-Earth Asteroids (4660) Nereus, (21088) Chelyabinsk, (66146) 1998 TU3, and (297418) 2000 SP43
Javier Rodríguez Rodríguez, Enrique Díez Alonso, Santiago Iglesias Álvarez +8
We present our shape and rotational characterization of four near-Earth asteroids observed as part of the Visible NEAs Observations Survey. This work includes 61 new light curves o…
A High-Throughput AES-GCM Implementation on GPUs for Secure, Policy-Based Access to Massive Astronomical Catalogs
Samuel Lemes-Perera, Miguel R. Alarcon, Pino Caballero-Gil +1
The era of large astronomical surveys generates massive image catalogs requiring efficient and secure access, particularly during pre-publication periods where data confidentiality…
On the rotation of M-type asteroids: statistical evidence for higher rotation rates
Fernando Abarzuza, Noemí Pinilla-Alonso, Miquel Serra-Ricart +2
Rotational dynamics of asteroids carry important information about their internal structure, collisional history and material composition. This work investigates whether M-type ast…
Pre-perihelion detection of a wobbling high-latitude jet in the interstellar comet 3I/ATLAS
M. Serra-Ricart, J. Licandro, M. R. Alarcon
We present observations of the detection of a faint high-latitude jet in the inner coma of comet 3I/ATLAS that coincides with the broad plume detected in visible images along PA $2…
Deep imaging of the very isolated dwarf galaxy NGC6789
Ignacio Trujillo, Sergio Guerra Arencibia, Ignacio Ruiz Cejudo +3
We present deep optical imaging of the extremely isolated dwarf galaxy NGC 6789, obtained with the new 2-meter Two-meter Twin Telescope (TTT3) at Teide Observatory. Despite its loc…
ATLAS Photometry of Interstellar Object 3I/ATLAS
John Tonry, Larry Denneau, Miguel Alarcon +7
We present calibrated ATLAS photometry of the interstellar comet 3I/ATLAS (C/2025 N1) from 28 March through 29 Aug 2025, obtained with the five-site, robotic ATLAS network in the c…
Deep imaging of the galaxy Malin 2 shows new faint structures and a candidate satellite dwarf galaxy
Junais, Ignacio Ruiz Cejudo, Sergio Guerra Arencibia +5
Giant Low Surface Brightness (GLSB) galaxies are extreme disk systems with exceptionally large sizes and low stellar densities. Their formation and evolution remain poorly constrai…
Characterization of of (98943) 2001 CC, the target of Hayabusa2
Marcel M. Popescu, Eri Tatsumi, Javier Licandro +11
The near-Earth asteroid (98943) Torifune, previously designated 2001 CC, is the flyby target of the Hayabusa2 extended mission, nicknamed Hayabusa2 (SHARP: Small Hazardo…
Light-curve analysis and shape models of NEAs 7335, 7822, 154244 and 159402
Javier Rodríguez Rodríguez, Enrique Díez Alonso, Santiago Iglesias Álvarez +8
In an attempt to further characterise the near-Earth asteroid (NEA) population we present 38 new light-curves acquired between September 2020 and November 2023 for NEAs (7335) 1989…
TOI-1135 b: A young hot Saturn-size planet orbiting a solar-type star
M. Mallorquín, N. Lodieu, V. J. S. Béjar +20
Despite the thousands of planets in orbit around stars known to date, the mechanisms of planetary formation, migration, and atmospheric loss remain unresolved. In this work, we con…
Improved models for near-Earth asteroids (2100) Ra-Shalom, (3103) Eger, (12711) Tukmit & (161989) Cacus
Javier Rodríguez Rodríguez, Enrique Díez Alonso, Santiago Iglesias Álvarez +7
We present 24 new dense lightcurves of the near-Earth asteroids (3103) Eger, (161989) Cacus, (2100) Ra-Shalom and (12711) Tukmit, obtained with the Instituto Astrofísico Canarias 8…
Observations of two super fast rotator NEAs: 2021 NY and 2022 AB
J. Licandro, M. Popescu, E. Tatsumi +5
In the framework of the Visible NEAs Observations Survey (ViNOS) that uses several telescopes at the Canary Islands observatories since 2018, we observed two super fast rotator NEA…