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<abridged> NASA's Asteroid Redirect Mission (ARM) has been proposed with the aim to capture a small asteroid a few meters in size and redirect it into an orbit around the Moon. There it can be investigated at leisure by astronauts aboard an…

Earth and Planetary Astrophysics · Physics 2015-05-27 Patrick Hatch , Paul Wiegert

In recent years a paradigm shift has occurred in exoplanet science, wherein low-mass stars are increasingly viewed as a foundational pillar of the search for potentially habitable worlds in the solar neighborhood. However, the formation…

Earth and Planetary Astrophysics · Physics 2022-04-06 Matthew S. Clement , Elisa V. Quintana , Billy L. Quarles

Small bodies in the solar system are conventionally classified into asteroids and comets. However, it is recently found that a small number of objects can exhibit properties of both asteroids and comets. Some are more consistent with…

Earth and Planetary Astrophysics · Physics 2018-12-05 Quan-Zhi Ye

Multiple terrestrial and space-based telescopes have been proposed for detecting and tracking near-Earth objects (NEOs). Detailed simulations of the search performance of these systems have used complex computer codes that are not widely…

Earth and Planetary Astrophysics · Physics 2016-03-23 Nathan Myhrvold

The Scattered Disk Objects (SDOs) are a population of trans-Neptunian bodies with semimajor axes $50< a \lesssim 1000$ au and perihelion distances $q \gtrsim 30$ au. The detached SDOs with orbits beyond the reach of Neptune (roughly…

Earth and Planetary Astrophysics · Physics 2023-08-23 David Nesvorny , Pedro Bernardinelli , David Vokrouhlicky , Konstantin Batygin

Besides new observations, mining old photographic plates and CCD image archives represents an opportunity to recover and secure newly discovered asteroids, also to improve the orbits of Near Earth Asteroids (NEAs), Potentially Hazardous…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 O. Vaduvescu , L. Curelaru , M. Birlan , G. Bocsa , L. Serbanescu , A. Tudorica , J. Berthier

The properties of the relative abundances of rapid and slow neutron-capture elements are studied using a catalog containing spectroscopic abundance determinations for 14~elements produced in various nuclear-synthesis processes for 90~open…

Astrophysics of Galaxies · Physics 2016-02-22 V. A. Marsakov , M. L. Gozha , V. V. Koval' , L. V. Shpigel'

The reachable set of controlled dynamical systems consist of the set of all possible reachable states from an initial condition, over a certain period of time under various control and operation constraints and exogenous disturbances. For…

Optimization and Control · Mathematics 2023-12-14 Sean R. Bowerfind , Ehsan Taheri

We describe enhancements to the digest2 software, a short-arc orbit classifier for heliocentric orbits. Digest2 is primarily used by the Near-Earth Object (NEO) community to flag newly discovered objects for a immediate follow-up and has…

Earth and Planetary Astrophysics · Physics 2023-09-29 Peter Vereš , Richard Cloete , Robert Weryk , Abraham Loeb , Matthew J. Payne

Dormant comets in the near-Earth object (NEO) population are thought to be involved in the terrestrial accretion of water and organic materials. Identification of dormant comets is difficult as they are observationally indistinguishable…

Earth and Planetary Astrophysics · Physics 2016-09-07 Quan-Zhi Ye , Peter G. Brown , Petr Pokorný

Context. Young and embedded stellar populations are important probes of the star formation process. Paradoxically, we have a better census of nearby embedded young populations than the slightly more evolved optically visible young…

We present new results of the observing program which is a part of the NEOROCKS project aimed to improve knowledge on physical properties of near-Earth Objects (NEOs) for planetary defense. Photometric observations were performed using the…

Among the currently known Near Earth Objects (NEOs), roughly 1400 are classified as being potentially hazardous asteroids. The recent Chelyabinsk event has shown that these objects can pose a real threat to mankind. We illustrate that high…

Instrumentation and Methods for Astrophysics · Physics 2013-11-19 Siegfried Eggl , Anatoliy Ivantsov , Daniel Hestroffer , Davide Perna , David Bancelin , William Thuillot

The organization of the orbits of most minor bodies in the Solar system seems to follow random patterns, the result of billions of years of chaotic dynamical evolution. Much as heterogeneous orbital behaviour is ubiquitous, dynamically…

Earth and Planetary Astrophysics · Physics 2017-12-08 C. de la Fuente Marcos , R. de la Fuente Marcos

A substantial fraction of our solar system's trans-Neptunian objects (TNOs) are in mean motion resonance with Neptune. Many of these objects were likely caught into resonances by planetary migration---either smooth or…

Earth and Planetary Astrophysics · Physics 2018-07-18 Tze Yeung Mathew Yu , Ruth Murray-Clay , Kathryn Volk

We describe the digest2 software package, a fast, short-arc orbit classifier for small Solar System bodies. The digest2 algorithm has been serving the community for more than 13 years. The code provides a score, D2, which represents a…

Asteroids and other Small Solar System Bodies (SSSBs) are of high general and scientific interest in many aspects. The origin, formation, and evolution of our Solar System (and other planetary systems) can be better understood by analysing…

Thermal infrared observations are the most effective way to measure asteroid diameter and albedo for a large number of near-Earth objects. Major surveys like NEOWISE, NEOSurvey, ExploreNEOs, and NEOLegacy find a small fraction of high…

In this paper we calculate the expected orbital elements, radiants, and velocities of Earth-impacting interstellar objects. We generate a synthetic population of $\sim10^{10}$ interstellar objects with M-star kinematics in order to obtain…

Earth and Planetary Astrophysics · Physics 2025-11-26 Darryl Z. Seligman , Dušan Marčeta , Eloy Peña-Asensio

Context. Orbital similarity measures, such as the D-values, have been extensively used in meteor science to identify meteoroid streams and associate meteorite falls with near-Earth objects (NEOs). However, the chaotic nature of near-Earth…

Earth and Planetary Astrophysics · Physics 2024-12-25 Patrick M. Shober , Ariane Courtot , Jeremie Vaubaillon