A5083760271- Astro and Planetary Science
- Stellar, planetary, and galactic studies
- Planetary Science and Exploration
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Gamma-ray bursts and supernovae
- Isotope Analysis in Ecology
- Geology and Paleoclimatology Research
- High-pressure geophysics and materials
- Space Satellite Systems and Control
- Geological and Geochemical Analysis
- Galaxies: Formation, Evolution, Phenomena
- Astronomical and nuclear sciences
- Solar and Space Plasma Dynamics
- Astrophysical Phenomena and Observations
- Astronomical Observations and Instrumentation
- Astrophysics and Cosmic Phenomena
- Scientific Research and Discoveries
- Space Exploration and Technology
- Space Science and Extraterrestrial Life
- Chaos control and synchronization
- Atomic and Molecular Physics
- Radio Astronomy Observations and Technology
- Geomagnetism and Paleomagnetism Studies
- Pulsars and Gravitational Waves Research
Universidad Complutense de Madrid
2014-2024
Suffolk University Madrid
2005-2010
Suffolk University
2006
Saint Louis University
1998-1999
The existence of an outer planet beyond Pluto has been a matter debate for decades and the recent discovery 2012 VP113 just revived interest this controversial topic. This Sedna-like object most distant perihelion any known minor value its argument is close to 0 degrees. property appears be shared by almost all asteroids with semimajor axis greater than 150 au 30 (the extreme trans-Neptunian objects or ETNOs), fact interpreted as evidence super-Earth at 250 au. In scenario, population stable...
A number of Earth co-orbital asteroids experience repeated transitions between the quasi-satellite and horseshoe dynamical states. Asteroids 2001 GO2, 2002 AA29, 2003 YN107 2015 SO2 are well-documented cases such a behaviour. These depend on gravitational influence other planets, owing to overlapping multiplicity secular resonances. Here, we show that recently discovered asteroid (469219) 2016 HO3 is our planet -the fifth one, joining ranks (164207) 2004 GU9, (277810) 2006 FV35, 2013 LX28...
Nearly all known extreme trans-Neptunian objects (ETNOs) have argument of perihelion close to 0 degrees. An existing observational bias strongly favours the detection ETNOs with arguments degrees and 180 yet no been found at No plausible explanation has offered so far account for this unusual pattern. Here, we study dynamical evolution comet 96P/Machholz 1, a bizarre near-Earth object (NEO) that may provide key explain puzzling clustering orbits around recently population ETNOs. Comet 1 is...
Small bodies in Earth-like orbits, the Arjunas, are good targets for scientific exploration, and space mining or situ resource utilization (ISRU) trials as they enable low-cost missions. The subset of these objects that experience recurrent temporarily captured flyby orbiter episodes among best ranked terms accessibility. Only a handful known to have engaged such dynamical behavior. Finding characterizing more them may help expand commercial research activities over next few decades....
Abstract The Porangaba meteorite fall was the result of a daylight fireball observed on 2015 January 9, in large area Sao Paulo, Brazil. It considered sporadic bolide not associated with any known meteor shower. Here, we show that orbital properties recently discovered virtual impactor 2024 YR 4 (impact probability 0.021) are possible match to those meteoroid responsible for 0.050. Our data mining exploration also uncovered group seemingly related objects includes impactors 2017 UW 5 , 2018...
The minor planet 2002 VE68 was identified as a quasi-satellite of Venus shortly after its discovery. At that time data-arc span only 24 d; now it is 2947 d. Here we revisit the topic dynamical status this remarkable object well look into past and explore future orbital evolution which driven by close encounters with both Earth–Moon system Mercury. In our calculations, use Hermite integration scheme, most updated ephemerides include perturbations eight major planets, Moon three largest...
Abstract Near-Earth objects (NEOs) moving in resonant, Earth-like orbits are potentially important. On the positive side, they ideal targets for robotic and human low-cost sample return missions a much cheaper alternative to using Moon as an astronomical observatory. negative side even if small size (2–50 m), have enhanced probability of colliding with Earth causing local but still significant property damage loss life. Here, we show that recently discovered asteroid 2013 BS45 is co-orbital,...
Abstract Mars was second to Jupiter in being recognized as the host of a population Trojan minor bodies. Since 1990, five asteroids – 5261 Eureka, (101429) 1998 VF31, (121514) 1999 UJ7, 2001 DH47 and (311999) 2007 NS2 have been identified Trojans, one L4 four L5. Dynamical spectroscopic evidence suggests that some Trojans may be remnants original planetesimal formed terrestrial planets region. Here, we revisit long-term dynamical evolution previously known show 2011 SC191, SL25 UN63 are also...
Planet Nine is a hypothetical planet located well beyond Pluto that has been proposed in an attempt to explain the observed clustering physical space of perihelia six extreme trans-Neptunian objects or ETNOs. The predicted approximate values its orbital elements include semimajor axis 700 au, eccentricity 0.6, inclination 30 degrees, and argument perihelion 150 degrees. Searching for this putative already under way. Here, we use Monte Carlo approach create synthetic population orbits study...
Abstract The Planet Nine hypothesis has now enough constraints to deserve further attention in the form of detailed numerical experiments. results such studies can help us improve our understanding dynamical effects a hypothetical object on extreme trans-Neptunian objects or ETNOs and perhaps provide additional orbit itself. Here, we present direct N-body calculations including latest data available conjecture. present-day orbits six originally linked are evolved backwards time into future...
The distribution of the orbital elements known extreme trans-Neptunian objects or ETNOs has been found to be statistically incompatible with that an unperturbed asteroid population following heliocentric or, better, barycentric orbits. Such trends, if confirmed by future discoveries ETNOs, strongly suggest one more massive perturbers could located well beyond Pluto. Within trans-Plutonian planets paradigm, Planet Nine hypothesis received much attention as a robust scenario explain observed...
<i>Context. <i/>Observations indicate that the fraction of potential binary star clusters in Magellanic Clouds is about 10%. In contrast, it widely accepted cluster frequency Galaxy disk much lower.<i>Aims. <i/>Here we investigate multiplicity Milky Way to either confirm or disprove this dearth binaries.<i>Methods. <i/>We quantify open using complete, volume-limited samples from WEBDA and NCOVOCC.<i>Results. <i/>At Solar Circle, at least 12% all appear be experiencing some type interaction...
Minor bodies trapped in 1:1 co-orbital resonances with a host planet could be relevant to explain the origin of captured satellites. Among giant planets, Uranus has one smallest known populations co-orbitals, three objects, and all them are short-lived. Asteroid 2015 DB216 an orbital period that matches well Uranus, here we investigate its dynamical state. Direct N-body calculations used assess current status this object, reconstruct immediate past, explore future evolution. A covariance...
Hierarchical star formation leads to a progressive decrease in the clustering of clusters both terms spatial scale and age. Consistently, statistical analysis positions ages Milky Way disk strongly suggests that correlation between duration region its size does exist. The average age difference pairs open increases with their separation as ∼0.16 power. In contrast, for Large Magellanic Cloud, Efremov & Elmegreen found scales ∼0.35 power size. This discrepancy may be tentatively interpreted...
It is a well-known fact that the presence of massive perturber interacting with population minor bodies following very eccentric orbits can strongly affect distribution their nodal distances. The details this process have been explored numerically and its outcome confirmed observationally in case Jupiter, where bimodal distances comets has found. Here, we show evidence for possible extreme trans-Neptunian objects (ETNOs) form previously unnoticed correlation between distance orbital...
Venus has three known co-orbitals: (322756) 2001 CK32, 2002 VE68 and 2012 XE133. The first two have absolute magnitudes 18 < H 21. third one, significantly smaller at = 23.4 mag, is a recent discovery that signals the probable presence of many other similar objects: small transient companions to are also potentially hazardous asteroids (PHAs). Here, we study dynamical evolution recently discovered asteroid 2013 ND15. At 24.1 this minor body yet another co-orbital PHA, currently close...
Observed hyperbolic minor bodies might have an interstellar origin, but they can be natives of the Solar system as well. Fly-bys with known planets or Sun may result in ejection originally bound body; addition, members Oort cloud could forced to follow inbound paths a secular perturbations induced by Galactic disc or, less frequently, due impulsive interactions passing stars. These four processes must leave distinctive signatures distribution radiants observed objects, both terms coordinates...
Abstract Near-Earth objects (NEOs) that follow horseshoe paths, and approach our planet at close range low relative velocity, may undergo mini-moon events in which their geocentric energy becomes negative for hours, days or months, but without completing one revolution around Earth while bound. An example of NEO experiencing such a temporarily captured flyby is 2022 NX 1 , was short-lived 1981 2022. Here, we show the recently discovered small body 2024 PT 5 follows path it will become 2024,...
The currently accepted paradigm for star formation assumes that field stars are born in clusters. These not formed isolation but stellar complexes out of giant molecular clouds. In the Galactic disk, clouds have distinctive orbits, which, as they disappear after is complete, may seed disk with families young gradually disperse to become individual clusters and, eventually, populations. We investigate existence dynamical open solar neighborhood using both age- and volume-limited samples from...
The basic properties of the candidate binary cluster population in Magellanic Clouds and Galaxy are similar. fraction systems is $\sim$10% pair separation histogram exhibits a bimodal distribution commonly attributed to their transient nature. However, if primordial pairs cannot survive for long as recognizable bound systems, how they ending up? Here, we use simulations confirm that merging, extreme tidal distortion ionization possible depending on initial orbital elements mass ratio pair....
Our planet has one permanently bound satellite – the Moon a likely large number of mini-moons or transient irregular natural satellites, and three temporary retrograde satellites quasi-satellites. These quasi-moons (164207) 2004 GU9, (277810) 2006 FV35 2013 LX28 are unbound companions to Earth. The orbital evolution quasi-satellites may transform them into temporarily our planet. Here, we study dynamical recently discovered Aten asteroid 2014 OL339 show that it is currently following...