Compositional properties of planet-crossing asteroids from astronomical surveys
arXiv:2309.03555 · doi:10.1051/0004-6361/202346394
Abstract
Context. The study of planet-crossing asteroids is of both practical and fundamental importance. As they are closer than asteroids in the Main Belt, we have access to a smaller size range, and this population frequently impacts planetary surfaces and can pose a threat to life. Aims. We aim to characterize the compositions of a large corpus of planet-crossing asteroids and to study how these compositions are related to orbital and physical parameters. Methods. We gathered publicly available visible colors of near-Earth objects (NEOs) from the Sloan Digital Sky Survey (SDSS) and SkyMapper surveys. We also computed SDSS-compatible colors from reflectance spectra of the Gaia mission and a compilation of ground-based observations. We determined the taxonomy of each NEO from its colors and studied the distribution of the taxonomic classes and spectral slope against the orbital parameters and diameter. Results. We provide updated photometry for 470 NEOs from the SDSS, and taxonomic classification of 7,401 NEOs. We classify 42 NEOs that are mission-accessible, including six of the seven flyby candidates of the ESA Hera mission. We confirm the perihelion dependance of spectral slope among S-type NEOs, likely related to a rejuvenation mechanism linked with thermal fatigue. We also confirm the clustering of A-type NEOs around 1.5-2 AU, and predict the taxonomic distribution of small asteroids in the NEO source regions in the Main Belt.
arXiv comment20 pages, 27 figures
References in corpus (44)
- Astropy: A Community Python Package for Astronomy
- The Sloan Digital Sky Survey: Technical Summary
- The Gaia mission
- The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
- Gaia Data Release 3: Summary of the content and survey properties
- Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
- astroquery: An Astronomical Web-Querying Package in Python
- OSIRIS-REx: Sample Return from Asteroid (101955) Bennu
- Solar System evolution from compositional mapping of the asteroid belt
- A Modified Magnitude System that Produces Well-Behaved Magnitudes, Colors, and Errors Even for Low Signal-to-Noise Ratio Measurements
- The taxonomic distribution of asteroids from multi-filter all-sky photometric surveys
- Debiased orbit and absolute-magnitude distributions for near-Earth objects
- Compositional distributions and evolutionary processes for the near-Earth object population: Results from the MIT-Hawaii Near-Earth Object Spectroscopic Survey (MITHNEOS
- Phase reddening on near-Earth asteroids: Implications for mineralogical analysis, space weathering and taxonomic classification
- The Size Distributions of Asteroid Families in the SDSS Moving Object Catalog 4
- Asteroid Taxonomy from Cluster Analysis of Spectrometry and Albedo
- Asteroid lightcurves from the Palomar Transient Factory survey: Rotation periods and phase functions from sparse photometry
- Albedo Properties of Main Belt Asteroids Based on the Infrared All-Sky Survey of the Astronomical Satellite AKARI
- Identification of meteorite source regions in the Solar System
- Spectral properties of near-Earth and Mars-crossing asteroids using Sloan photometry
- A spectroscopic survey of the small near-Earth asteroid population: peculiar taxonomic distribution and phase reddening
- Taxonomic classification of asteroids based on MOVIS near-infrared colors
- Olivine-dominated A-type asteroids in the Main Belt: Distribution, Abundance and Relation to Families
- Do Planetary Encounters Reset Surfaces of Near Earth Asteroids?
- Olivine-dominated asteroids: Mineralogy and origin
- A million asteroid observations in the Sloan Digital Sky Survey
- Physical properties of ESA Rosetta target asteroid (21) Lutetia: Shape and flyby geometry
- Gaia Data Release 3: Reflectance spectra of Solar System small bodies
- Visible spectroscopy from the Mission Accessible Near-Earth Object Survey (MANOS): Taxonomic dependence on asteroid size
- Solar System Science with ESA Euclid
- Twenty years of SpeX: Accuracy limits of spectral slope measurements in asteroid spectroscopy
- SsODNet: The Solar system Open Database Network
- Composition of the L5 Mars Trojans: Neighbors, not Siblings
- The debiased compositional distribution of MITHNEOS: Global match between the near-Earth and main-belt asteroid populations and excess of D-type Near-Earth Objects
- Prediction of transits of solar system objects in Kepler/K2 images: An extension of the Virtual Observatory service SkyBoT
- Multi-filter photometry of Solar System Objects from the SkyMapper Southern Survey
- A Martian Origin for the Mars Trojan Asteroids
- Isolating the mechanisms for asteroid surface refreshing
- Investigating Taxonomic Diversity within Asteroid Families through ATLAS Dual-Band Photometry
- Precovery of near-Earth asteroids by a citizen-science project of the Spanish Virtual Observatory
- Zero-phase angle asteroid taxonomy classification using unsupervised machine learning algorithms
- Absolute colors and phase coefficients of asteroids
- Olivine-rich asteroids in the near-Earth space
- Composition and origin of L5 Trojan asteroids of Mars: Insights from spectroscopy