A5032701747- Astro and Planetary Science
- Planetary Science and Exploration
- Higher Education Teaching and Evaluation
- Geology and Paleoclimatology Research
- Stellar, planetary, and galactic studies
- E-Learning and Knowledge Management
- Geomagnetism and Paleomagnetism Studies
- Educational Technology in Learning
- Occupational Health and Safety in Workplaces
- Technology in Education and Healthcare
- Isotope Analysis in Ecology
- High-pressure geophysics and materials
- Astrophysics and Star Formation Studies
- Space Exploration and Technology
- Occupational Health and Safety Research
- Geological and Geochemical Analysis
- Distributed systems and fault tolerance
- Educational Innovations and Technology
- Astronomical Observations and Instrumentation
- Knowledge Societies in the 21st Century
- Educational theories and practices
- Sports and Physical Education Studies
- Space Satellite Systems and Control
- Calibration and Measurement Techniques
- Spacecraft and Cryogenic Technologies
University of Alicante
2014-2025
Southwest Research Institute
2012
Consejo Superior de Investigaciones Científicas
2011
Observatoire des Sciences de l’Univers Terre Homme Environnement Temps Astronomie
2008
Herzberg Institute of Astrophysics
2008
University of British Columbia
2008
Cornell University
2008
University of Washington
2008
We report the orbital distribution of trans-Neptunian objects (TNOs) discovered during Canada–France Ecliptic Plane Survey (CFEPS), whose discovery phase ran from early 2003 until 2007. The follow-up observations started just after first discoveries and extended late 2009. obtained characterized 321 deg2 sky to depths in range g ∼ 23.5–24.4 AB mag. provide a database 169 TNOs with high-precision dynamical classification known efficiency. Using this database, we find that classical belt is...
Abstract Asteroids smaller than 10 km are thought to be rubble piles formed from the reaccumulation of fragments produced in catastrophic disruption parent bodies. Ground-based observations reveal that some these asteroids today binary systems, which a secondary orbits larger primary asteroid. However, how became systems remains unclear. Here, we report analysis boulders on surface stony asteroid (65803) Didymos and its moonlet, Dimorphos, data collected by NASA DART mission. The...
We report the orbital distribution of trans-Neptunian comets discovered during first discovery year Canada–France Ecliptic Plane Survey (CFEPS). CFEPS is a Kuiper Belt object survey based on observations acquired by Very Wide component Canada–France–Hawaii Telescope Legacy (LS-VW). The year's detections consist 73 objects, 55 which have now been tracked for three years or more, providing precise orbits. Although this sample size small compared to world-wide inventory, because we an...
We present several lines of evidence, based on different kinds observations, and we conclude that it is likely rotational fission has occurred for a fraction the known trans-Neptunian objects (TNOs). It also number binary systems have formed from process in belt. show Haumea is, potentially, an example object suffered fission. Its current fast spin would be slight evolution primordial spin, rather than result catastrophic collision. This because percentage rotating faster 4 h not small...
<title>Abstract</title> Understanding the physical characteristics of small bodies in Solar System is crucial for refining models their formation and evolution. Although several kilometre-sized asteroids have already been visited by spacecraft, 1998 KY26 will be first asteroid decametre range to explored situ. Its diameter spin period place it above barrier, suggesting that its properties may differ from those previously bodies. However, key remain poorly understood. We conducted a...
The study of binary Kuiper Belt objects helps to probe the dynamic conditions present during planet formation in solar system. We report on mutual-orbit determination 2001 QW 322 , a with very large separation whose properties challenge binary-formation and -evolution theories. Six years tracking indicate that binary's period is ≈25 30 years, orbit pole retrograde inclined 50° 62° from ecliptic plane, and, most surprisingly, mutual orbital eccentricity <0.4. semimajor axis 105,000 135,000...
Abstract Trojan asteroids are small bodies orbiting around the L 4 or 5 Lagrangian points of a Sun-planet system. Due to their peculiar orbits, they provide key constraints Solar System evolution models. Despite numerous dedicated observational efforts in last decade, asteroid 2010 TK 7 has been only known Earth thus far. Here we confirm that recently discovered 2020 XL is second transient known. To study its orbit, used archival data from 2012 2019 and observed object 2021 three...
The inventory of the populations trans-Neptunian objects (TNO) has grown considerably over last decade. As for other groups small bodies in our solar system, TNOs are expected to have experienced a collisional evolution owing their mutual impacts. knowledge statistics collisions, including determination rate collisions and distribution impact velocity, is indeed fundamental prerequisite developing models evolution. We revised evaluation those statistical parameters provided more than ten...
An increasing number of Near Earth Asteroids (NEAs) in the range a few hundred meters to kilometres size have relatively high spin rates, from less than 4 h, down $\sim$2.2 depending on spectral type. For some these bodies, local acceleration near equator may be directed outwards so that lift off near-equatorial material is possible. In particular, this case for asteroid Didymos, primary (65803) Didymos binary system, which target DART (NASA) and Hera (ESA) space missions. The study dynamics...
Almost 20 years of observations the trans-Neptunian region have shed light on overall dynamical structure object (TNO) populations and absolute magnitude distributions. The TNO can be inserted in global frame evolution giant planets, as described by Nice model. Any reliable collisional model should account for effects produce results that meet constraints imposed current observables. With this aim, we developed a code package [Asteroid-LIke Collisional ANd Dynamical Evolution Package...
Results are presented from a programme of linear polarimetry to find unpolarized stars in the solar vicinity that could be used as standard and within reach telescopes southern hemisphere. We up 10 suitable candidates. On other hand, among observed stars, HD 112164, 114613, 130307 160691 objects 27 pc Sun but showed relatively high polarization ≈0.1 per cent level, which must intrinsic origin.
Aims. We present results of a polarimetric survey main-belt asteroids at Complejo Astronómico El Leoncito (Casleo), San Juan, Argentina. The aims this are to increase the database asteroid polarimetry, estimate diversity in properties that belong different taxonomic classes, and search for objects exhibit anomalous properties.
Context. Extensive photometric surveys continue to produce enormous stores of data on small bodies. These are typically sparsely obtained at arbitrary (or unknown) rotational phases. Therefore, new methods for processing such need be developed make the most these vast catalogs. Aims. We aim a method recreating phase curves bodies by considering uncertainties introduced nominal errors in magnitudes and effect variations. use SLOAN Moving Objects Catalog as benchmark construct all u ′, g r i z...
Abstract The Double Asteroid Redirection Test (DART, NASA) spacecraft revealed that the primary of (65803) Didymos near-Earth asteroid (NEA) binary system is not exactly expected spinning top shape observed for other km-size asteroids. Ground based radar observations predicted such was compatible with uncertainty along direction spin axis. Indeed, shows crater and landslide features, evidence boulder motion at low equatorial latitudes. Altogether, seems to have undergone sudden structural...
ABSTRACT We investigated the propagation of energy and momentum inside a small gravitational aggregate asteroid following hypervelocity impact, comparable to NASA’s Double Asteroid Redirection Test (DART) on Dimorphos. show that impact damps rapidly different kinds granular structures, unable reach antipodal hemisphere impact. However, global reshaping after formation sizeable (${\gt}1/3$ target size) crater causes meter-range displacement boulders due mass rearrangement achieve new...
Abstract Morphological mapping is a fundamental step in studying the processes that shaped an asteroid surface. However, it challenging and often requires multiple independent assessments by trained experts. Here we present fast methods to detect characterize meaningful terrains from topographic roughness: entropy of information, local mean surface orientation. We apply our techniques Didymos Dimorphos, target asteroids NASA's Double Asteroid Redirection Test mission—the first attempt...
The scenarios proposed in the literature for genesis of system formed by dwarf planet 136108 Haumea, its two satellites and a group some 10 bodies (the family) with semimajor axes, eccentricities inclinations close to Haumea's values, are analysed against collisional, physical, dynamical statistical arguments order assess their likelihood. All based on collisional events reviewed under physical corresponding formation probabilities environment evaluated according evolution model alicandep....