Matches in SemOpenAlex for { <https://semopenalex.org/work/W2232774313> ?p ?o ?g. }
- W2232774313 endingPage "354" @default.
- W2232774313 startingPage "340" @default.
- W2232774313 abstract "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 of near-Earth and Mars-crosser asteroids and analyze the distribution of these classes with orbit. We use this distribution to identify the source regions of near-Earth objects and to study the strength of planetary encounters to refresh asteroid surfaces. We measure the photometry of these asteroids over four filters at visible wavelengths on images taken by the Sloan Digital Sky Survey (SDSS). These colors are used to classify the asteroids into a taxonomy consistent with the widely used Bus-DeMeo taxonomy (DeMeo et al. [2009]. Icarus 202, 160–180) based on visible and near-infrared spectroscopy. We report here on the taxonomic classification of 206 near-Earth and 776 Mars-crosser asteroids determined from SDSS photometry, representing an increase of 40% and 663% of known taxonomy classifications in these populations. Using the source region mapper by Greenstreet et al. (Greenstreet, S., Ngo, H., Gladman, B. [2012]. Icarus, 217, 355–366), we compare for the first time the taxonomic distribution among near-Earth and main-belt asteroids of similar diameters. Both distributions agree at the few percent level for the inner part of the main belt and we confirm this region as a main source of near-Earth objects. The effect of planetary encounters on asteroid surfaces are also studied by developing a simple model of forces acting on a surface grain during planetary encounter, which provides the minimum distance at which a close approach should occur to trigger resurfacing events. By integrating numerically the orbit of the 519 S-type and 46 Q-type asteroids in our sample back in time for 500,000 years and monitoring their encounter distance with Venus, Earth, Mars, and Jupiter, we seek to understand the conditions for resurfacing events. The population of Q-type is found to present statistically more encounters with Venus and the Earth than S-types, although both S- and Q-types present the same amount of encounters with Mars." @default.
- W2232774313 created "2016-06-24" @default.
- W2232774313 creator A5006011475 @default.
- W2232774313 creator A5012635099 @default.
- W2232774313 creator A5076220550 @default.
- W2232774313 creator A5079572082 @default.
- W2232774313 date "2016-04-01" @default.
- W2232774313 modified "2023-10-17" @default.
- W2232774313 title "Spectral properties of near-Earth and Mars-crossing asteroids using Sloan photometry" @default.
- W2232774313 cites W1488776166 @default.
- W2232774313 cites W1585054956 @default.
- W2232774313 cites W1608315623 @default.
- W2232774313 cites W1617188689 @default.
- W2232774313 cites W1668178623 @default.
- W2232774313 cites W1953739714 @default.
- W2232774313 cites W1965369483 @default.
- W2232774313 cites W1968300080 @default.
- W2232774313 cites W1969641999 @default.
- W2232774313 cites W1970228009 @default.
- W2232774313 cites W1974153453 @default.
- W2232774313 cites W1984927679 @default.
- W2232774313 cites W1985751980 @default.
- W2232774313 cites W1986817034 @default.
- W2232774313 cites W1988468514 @default.
- W2232774313 cites W1989033868 @default.
- W2232774313 cites W1992308186 @default.
- W2232774313 cites W1994739619 @default.
- W2232774313 cites W1995350618 @default.
- W2232774313 cites W1998825340 @default.
- W2232774313 cites W1999811809 @default.
- W2232774313 cites W2000108955 @default.
- W2232774313 cites W2003372524 @default.
- W2232774313 cites W2014519161 @default.
- W2232774313 cites W2014703566 @default.
- W2232774313 cites W2021072354 @default.
- W2232774313 cites W2023016915 @default.
- W2232774313 cites W2023688816 @default.
- W2232774313 cites W2023789814 @default.
- W2232774313 cites W2024322793 @default.
- W2232774313 cites W2027145273 @default.
- W2232774313 cites W2027657785 @default.
- W2232774313 cites W2027875633 @default.
- W2232774313 cites W2028633009 @default.
- W2232774313 cites W2028871270 @default.
- W2232774313 cites W2030941136 @default.
- W2232774313 cites W2035050546 @default.
- W2232774313 cites W2039479112 @default.
- W2232774313 cites W2039553709 @default.
- W2232774313 cites W2040166826 @default.
- W2232774313 cites W2043326404 @default.
- W2232774313 cites W2045172384 @default.
- W2232774313 cites W2049683407 @default.
- W2232774313 cites W2053951728 @default.
- W2232774313 cites W2056567459 @default.
- W2232774313 cites W2057144909 @default.
- W2232774313 cites W2057737559 @default.
- W2232774313 cites W2059461957 @default.
- W2232774313 cites W2059579545 @default.
- W2232774313 cites W2061800640 @default.
- W2232774313 cites W2062328050 @default.
- W2232774313 cites W2064106185 @default.
- W2232774313 cites W2067089387 @default.
- W2232774313 cites W2067989437 @default.
- W2232774313 cites W2068196043 @default.
- W2232774313 cites W2071161573 @default.
- W2232774313 cites W2071329863 @default.
- W2232774313 cites W2073482989 @default.
- W2232774313 cites W2075710827 @default.
- W2232774313 cites W2080041949 @default.
- W2232774313 cites W2085879809 @default.
- W2232774313 cites W2087930533 @default.
- W2232774313 cites W2088269951 @default.
- W2232774313 cites W2089337790 @default.
- W2232774313 cites W2090172880 @default.
- W2232774313 cites W2091903312 @default.
- W2232774313 cites W2092609569 @default.
- W2232774313 cites W2093235418 @default.
- W2232774313 cites W2096282597 @default.
- W2232774313 cites W2113340041 @default.
- W2232774313 cites W2113512300 @default.
- W2232774313 cites W2114367147 @default.
- W2232774313 cites W2114821020 @default.
- W2232774313 cites W2124400970 @default.
- W2232774313 cites W2126086415 @default.
- W2232774313 cites W2127321377 @default.
- W2232774313 cites W2129579272 @default.
- W2232774313 cites W2134219202 @default.
- W2232774313 cites W2136858939 @default.
- W2232774313 cites W2145003850 @default.
- W2232774313 cites W2154308560 @default.
- W2232774313 cites W2155897550 @default.
- W2232774313 cites W2163257413 @default.
- W2232774313 cites W2163755141 @default.
- W2232774313 cites W2168188376 @default.
- W2232774313 cites W2168371555 @default.
- W2232774313 cites W2254682304 @default.
- W2232774313 cites W2283689578 @default.
- W2232774313 cites W2478443047 @default.