Near-Earth Objects: Finding Them before They Find Us

By Donald K. Yeomans | Go to book overview

INDEX
ablation, 110–12, 114, 141, 146
acid rain, 6, 55n7, 112
Advanced Space Systems Engineering, 148–49
air blasts, 5, 110–11, 116–18, 127
Air Force Space Command, 126
air resistance, 110–11
Alexander Helios (moon), 91
Alexhelios (moon), 91
Almahata Sitta meteorites, 128
aluminum, 80
Alvarez, Luis, 53–54
Alvarez, Walter, 53–54
amino acids, 51n6, 52
ammonia, 51n6, 95
Amor asteroid group, 11, 61–62
angular momentum, 23
aphelion, 9–10
Apollo asteroid group, 11, 61–62, 64, 120, 137, 148n3
Apollo program, 39n5, 65n7, 132–33, 144
Arecibo antenna, 78, 88
Asiago-Cima Ekar, Italy, 67n8
Asphaug, Erik, 147
asteroids: ablation and, 110–12, 114, 141, 146; Amor group, 11, 61–62; Apollo group, 11, 61–62, 64, 120, 137, 148n3; astronauts on, 79, 105–8, 144; Aten group, 11–12, 61–62, 105n5, 137; Atira group, 11–12, 61–62; binary, 46, 86; carbon and, 40–41, 46, 134, 153; C-class, 41; classifications for, 41; collisions and, 80–85; comets and, 7, 91–92; Committee for Small Body Nomenclature and, 13n5; D-class, 41–42; death of dinosaurs and, 5–6, 8, 53–56, 67, 101, 114–15; definition of, 6, 10t; deflection of, 138–53; delivery of building blocks of life and, 51–53; density and, 83; differentiation and, 80; diverse shapes of, 79; dust and, 107; elements and, 41; entry speed and, 110; as greater threat than comets, xi–xii; heat and, 77, 80, 85, 110–12, 114, 115n3, 141, 146; Herschel and, 60n5; inactive comets and, 7; inner belt, 11, 16, 32, 42–43, 62; K-T extinction event and, 53–56; landing on, 105–6; light and, 64, 85–86, 88, 89; main belt of, 8, 12–13, 16, 25, 40, 46, 58–61, 66, 67, 71n12, 72, 89, 97; M-class, 41; metals and, 14, 21n5, 41, 81, 85, 89, 99, 101–3, 105, 107–8, 153; meteoroids and, 7; minerals and, 14, 26, 40–41, 81n2, 85, 99, 101, 103, 105n5, 108, 153; mining of, 101– 5; as minor planets, 6, 60; moons of, 79, 86, 88–89, 90n1, 91, 99; mounting rocket engine on, 140; naming, 12–13, 62; nature of, 79–91, 98–99; Nice model and, 40–41; nickel-iron, 80–81, 99, 102; number of, 8, 12; origin of solar system and, 29; OSIRIS-REx mission and, 134; Palomar Asteroid and Comet Survey (PACS) and, 65; Palomar Planet-Crossing Asteroid Survey (PCAS) and, 64; planetesimals and, 80; porosity and, 83–84, 143–44; radar images of, 88–91; recent discovery of great population near Earth, xi; rotation of, 85–88; rubble pile model and, 46, 79–86, 99; S-class, 41, 86; seismic shaking and, 85, 112, 118; self-gravity and, 80, 82; shape models and, 83, 89, 91; silicate, 13, 41, 80, 98, 102; sinks and, 41–43; slow-pull gravity tractor and, 144–45; stony, 5, 81, 110, 111n2, 114, 115n1, 121, 124, 151–52; transition objects and, 97–98; Trojan, 16, 36–37, 40; Tunguska event and, 3–5, 116–19; Van der Waals forces and, 82; as vermin of the skies, 61, 66; water and, 99, 106, 107;

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