English
Related papers

Related papers: The orbital evolution of Atira asteroids

200 papers

There are only a few known main belt (MB) asteroid families with ages greater than 2 Gyr (Bro\v{z} et al. 2013, Spoto et al. 2015). Estimates based on the family producing collision rate suggest that the lack of >2 Gyr-old families may be…

Earth and Planetary Astrophysics · Physics 2016-11-15 Bryce T. Bolin , Marco Delbo , Alessandro Morbidelli , Kevin J. Walsh

We present preliminary diameters and albedos for 7,959 asteroids detected in the first year of the NEOWISE Reactivation mission. 201 are near-Earth asteroids (NEAs). 7,758 are Main Belt or Mars-crossing asteroids. 17% of these objects have…

Earth and Planetary Astrophysics · Physics 2015-12-01 C. R. Nugent , A. Mainzer , J. Masiero , J. Bauer , R. M. Cutri , T. Grav , E. Kramer , S. Sonnett , R. Stevenson , E. L. Wright

In this work, we study the continuation of a periodic orbit on a relatively large scale and discover the existence of convergence under certain conditions, which has profound significance in research on asteroids and can provide a total…

Earth and Planetary Astrophysics · Physics 2020-10-26 Haokun Kang , Yu Jiang , Hengnian Li

The near-Earth object (NEO) population is a window into the original conditions of the protosolar nebula, and has the potential to provide a key pathway for the delivery of water and organics to the early Earth. In addition to delivering…

Earth and Planetary Astrophysics · Physics 2018-08-01 S. Ieva , E. Dotto , E. Mazzotta Epifani , D. Perna , A. Rossi , M. A. Barucci , A. Di Paola , R. Speziali , M. Micheli , E. Perozzi , M. Lazzarin , I. Bertini

Asteroids and comets are of strategic importance for science in an effort to understand the formation, evolution and composition of the Solar System. Near-Earth Objects (NEOs) are of particular interest because of their accessibility from…

Dynamical Systems · Mathematics 2013-08-09 D. García Yárnoz , J. P. Sánchez , C. R. McInnes

Near-Earth asteroids (NEAs) that may evolve into impactors deserve detailed threat assessment studies. Early physical characterization of a would-be impactor may help in optimizing impact mitigation plans. We first detected NEA…

We propose to use a modest fraction of the re-purposed Kepler mission time and apertures to greatly increase the quantity and quality of our knowledge of near-Earth asteroids (NEAs) rotation and shape. NEAs are important for understanding…

Earth and Planetary Astrophysics · Physics 2013-09-11 Martin Elvis , José Luis Galache , Gareth V. Williams

We report measured spectral properties for more than 1000 NEOs, representing>5% of the currently discovered population. Thermal flux detected below 2.5 {\mu}m allows us to make albedo estimates for nearly 50 objects, including two comets.…

The near-Earth asteroid (NEA) 2015 TB145 had a very close encounter with Earth at 1.3 lunar distances on October 31, 2015. We obtained 3-band mid-infrared observations with the ESO VLT-VISIR instrument and visual lightcurves during the…

Earth and Planetary Astrophysics · Physics 2017-02-08 T. G. Müller , A. Marciniak , M. Butkiewicz-Bąk , R. Duffard , D. Oszkiewicz , H. U. Käufl , R. Szakáts , T. Santana-Ros , C. Kiss , P. Santos-Sanz

Eos family was created during a catastrophic impact about 1.3 Gyr ago. Rotation states of individual family members contain information about the history of the whole population. We aim to increase the number of asteroid shape models and…

We report the discovery of a new asteroid family among the dark asteroids residing in the Phocaea region the Tamara family. We make use of available physical data to separate asteroids in the region according to their surface reflectance…

Earth and Planetary Astrophysics · Physics 2017-05-31 Bojan Novakovic , Georgios Tsirvoulis , Mikael Granvik , Ana Todovic

The orbit of the outer satellite Alexhelios of (216) Kleopatra is already constrained by adaptive-optics astrometry, obtained with the VLT/SPHERE instrument. However, there is also a preceding occultation event in 1980 attributed to this…

Earth and Planetary Astrophysics · Physics 2022-01-19 M. Brož , J. Ďurech , B. Carry , F. Vachier , F. Marchis , J. Hanuš , L. Jorda , P. Vernazza , D. Vokrouhlický , M. Walterová , R. Behrend

Short-arc orbit determination is crucial when an asteroid is first discovered. In these cases usually the observations are so few that the differential correction procedure may not converge. We have developed an initial orbit computation…

Earth and Planetary Astrophysics · Physics 2018-06-13 F. Spoto , A. Del Vigna , A. Milani , G. Tommei , P. Tanga , F. Mignard , B. Carry , W. Thuillot , P. David

We simulate the formation and evolution of Oort clouds around the 200 nearest stars (within 16pc according to the Gaia DR2) database. This study is performed by numerically integrating the planets and minor bodies in orbit around the parent…

Earth and Planetary Astrophysics · Physics 2021-03-24 Simon Portegies Zwart

There is a great deal of scientific interest in characterizing the basaltic asteroids (spectrally classified as V-types), as they are the key to understanding planetesimal formation and evolution in the early Solar System. These have long…

Earth and Planetary Astrophysics · Physics 2022-12-07 Dagmara Oszkiewicz , Hanna Klimczak , Benoit Carry , Antti Penttila , Marcel Popescu , Joahim Kruger , Marcelo Aron Keniger

Asteroid binaries found amongst the Near-Earth objects are believed to have formed from rotational fission. In this paper, we aim to study the dynamical evolution of asteroid systems the moment after fission. The initial condition is…

Earth and Planetary Astrophysics · Physics 2022-09-14 Alex Ho , Margrethe Wold , Mohammad Poursina , John T. Conway

Asteroids residing in the first-order mean motion resonances with Jupiter hold important information about the processes that set the final architecture of giant planets. Here we revise current populations of objects in the J2/1 (Hecuba-gap…

Earth and Planetary Astrophysics · Physics 2011-04-21 Miroslav Brož , David Vokrouhlický

The near-Earth asteroid population suggests the existence of an inner Main Belt source of asteroids that belongs to the spectroscopic X-complex and has moderate albedos. The identification of such a source has been lacking so far. We argue…

Earth and Planetary Astrophysics · Physics 2019-04-17 Marco Delbo , Chrysa Avdellidou , Alessandro Morbidelli

The impact of nova eruptions on the long-term evolution of Cataclysmic Variables(CVs) is one of the least understood and intensively discussed topics in the field. Acrucial ingredient to improve with this would be to establish a large…

Solar and Stellar Astrophysics · Physics 2020-11-18 I. Fuentes-Morales , C. Tappert , M. Zorotovic , N. Vogt , E. C. Puebla , M. R. Schreiber , A. Ederoclite , L. Schmidtobreick

The two and three body mean motion resonances with Jupiter and Mars (and possible with Earth) may have significant effect on dynamics of very young close asteroids pairs and families. The most known example is influence 9:16 resonance with…

Earth and Planetary Astrophysics · Physics 2020-09-11 A. Rosaev , M. Galiazzo , E. Plávalová