English
Related papers

Related papers: Far from random: dynamical groupings among the NEO…

200 papers

Dynamical models of the asteroid delivery from the main belt suggest that the current impact flux of diameter D>10 km asteroids on the Earth is 0.5-1 per Gyr. Studies of the Near-Earth Asteroid (NEA) population find a much higher flux, with…

Earth and Planetary Astrophysics · Physics 2018-01-10 D. Nesvorny , F. Roig

Centaurs are objects whose orbits are found between those of the giant planets. They are supposed to originate mainly from the TransNeptunian objects, and they are among the sources of NearEarth Objects.TransNeptunian Objects (TNOs) cross…

Earth and Planetary Astrophysics · Physics 2016-11-18 Mattia Alvise Galiazzo , Paul Wiegert , Safwan Aljbaae

We estimate the total population of near-Earth objects (NEOs) in the Solar System, using an extensive, `Solar System to pixels' fake-asteroid simulation to debias detections of real NEOs by the ATLAS survey. Down to absolute magnitudes…

Recently, Near Earth Objects (NEOs) have been attracting great attention, and thousands of NEOs have been found to date. This paper examines the NEOs' orbital dynamics using the framework of an accurate solar system model and a…

Earth and Planetary Astrophysics · Physics 2011-08-25 Hexi Baoyin , Yang Chen , Junfeng Li

The Taurid Complex is a large interplanetary system that contains comet 2P/Encke, several meteoroid streams, and possibly a number of near-Earth asteroids. The size and nature of the system has led to the speculation that it was formed…

Near-Earth Objects (NEOs) that orbit the Sun on or within Earth's orbit are tricky to detect for Earth-based observers due to their proximity to the Sun in the sky. These small bodies hold clues to the dynamical history of the inner solar…

Using the Secular Light Curve (SLC) formalism (Ferr\'in, 2010), we have catalogued 88 probable members of the Taurid Complex (TC). 51 of them have useful SLCs and 34 of these (67%) exhibit cometary activity. This high percentage of active…

Earth and Planetary Astrophysics · Physics 2021-09-15 Ignacio Ferrin , Vincenzo Orofino

The Virginid meteoroid streams produce a series of meteor showers active annually during February-May. A certain parent comet is not found but a related association of some showers with near-Earth asteroids was previously established and a…

Earth and Planetary Astrophysics · Physics 2023-05-26 G. I. Kokhirova , A. I. Zhonmuhammadi , U. H. Khamroev , T. J. Jopek

NEOs come close to the Earth's orbit so that any dust ejected from them, might be seen as a meteor shower. Orbits evolve rapidly, so that a similarity of orbits at one given time is not suffcient to prove a relationship, orbital evolution…

Earth and Planetary Astrophysics · Physics 2015-06-18 Tadeusz J. Jopek , Iwan P. Williams

All airless bodies are subject to the space environment, and spectral differences between asteroids and meteorites suggest many asteroids become weathered on very short (<1My) timescales. The spectra of some asteroids, particularly Q-types,…

Earth and Planetary Astrophysics · Physics 2015-06-17 Francesca E. DeMeo , Richard P. Binzel , Matthew Lockhart

We investigate numerically the dynamical evolution of simulated meteoroid stream of the Quadrantids ejected from the parent body of the asteroid (196256) 2003 EH1. The main goal of this work is to identify mean motion and secular resonances…

Earth and Planetary Astrophysics · Physics 2020-08-11 Georgy E. Sambarov , Tatyana Yu. Galushina , Olga M. Syusina

We present spectro-photometric griz colors for 189 near-Earth objects (NEOs) collected by the Mission Accessible Near-Earth Object Survey (MANOS). Data acquisition involved non-simultaneous multi-band exposures, thus particular attention…

On 2018 June 2, meteoroid 2018 LA became the third natural body ever to be observed before entering our atmosphere ---small asteroids 2014 AA and 2008 TC3 had stricken the Earth on 2014 January 2 and 2008 October 7, respectively. Here, we…

Earth and Planetary Astrophysics · Physics 2018-06-20 C. de la Fuente Marcos , R. de la Fuente Marcos

We demonstrate dynamical pathways from main-belt asteroid and Centaur orbits to those in co-orbital motion with Jupiter, including the retrograde (inclination $i>90^o$) state. We estimate that at any given time, there should be $\sim1$…

Earth and Planetary Astrophysics · Physics 2020-09-09 Sarah Greenstreet , Brett Gladman , Henry Ngo

The near-Earth objects with low-Jovian Tisserand invariant ($T_J$) represent about 9 per cent of the known objects orbiting in the near-Earth space, being subject of numerous planetary encounters and large temperature variations. We aim to…

Earth and Planetary Astrophysics · Physics 2021-09-28 N. G. Simion , M. Popescu , J. Licandro , O. Vaduvescu , J. de Leon , R. M. Gherase

The goal of this work is to determine if the dynamics of individual Taurid Complex (TC) objects are consistent with the formation of the complex via fragmentation of a larger body, or if the current orbital affinities between the TC members…

Earth and Planetary Astrophysics · Physics 2021-08-11 A. Egal , P. Wiegert , P. G. Brown , P. Spurný , J. Borovička , G. B. Valsecchi

Asteroids that could collide with the Earth are listed on the publicly available Near-Earth object (NEO) hazard web sites maintained by the US and European space agencies (NASA and ESA). The impact probability distribution of 69 potentially…

Earth and Planetary Astrophysics · Physics 2017-02-21 Clemens Rumpf , Hugh G. Lewis , Peter M. Atkinson

The structure of the Taurid meteor complex based on photographic orbits available in the IAU Meteor database is studied. We have searched for potential sub-streams or filaments to be associated with the complex utilizing the…

Earth and Planetary Astrophysics · Physics 2011-03-23 V. Porubčan , L. Kornoš , I. P. Williams

The orbital evolution of more than 22000 Jupiter-crossing objects under the gravitational influence of planets was investigated. We found that the mean collision probabilities of Jupiter-crossing objects (from initial orbits close to the…

Astrophysics · Physics 2009-11-07 S. I. Ipatov , J. C. Mather

The nature and origin of the asteroids orbiting in near-Earth space, including those on a potentially hazardous trajectory, is of both scientific interest and practical importance. We aim here at determining the taxonomy of a large sample…

Earth and Planetary Astrophysics · Physics 2016-02-24 Benoit Carry , Enrique Solano , Siegfried Eggl , Francesca E. DeMeo