Results 21 to 30 of about 824,786 (237)

Arecibo radar observations of near-Earth asteroid (3200) Phaethon during the 2017 apparition [PDF]

Planetary and Space Science, 2019
We report Arecibo S-band (2380 MHz; 12.6 cm) radar observations of near-Earth asteroid (3200) Phaethon during the December 2017 apparition when Phaethon passed within 0.07 au of Earth.
P. Taylor, E. Rívera-Valentin, L. Benner, S. Marshall, A. Virkki, F. Venditti, L. Zambrano-Marin, S. Bhiravarasu, B. Aponte-Hernández, C. Rodriguez Sánchez-Vahamonde, J. Giorgini   +10 more
semanticscholar   +1 more source

Near to Mid-infrared Spectroscopy of (65803) Didymos as Observed by JWST: Characterization Observations Supporting the Double Asteroid Redirection Test

The Planetary Science Journal, 2023
The Didymos binary asteroid was the target of the Double Asteroid Redirection Test (DART) mission, which intentionally impacted Dimorphos, the smaller member of the binary system.
Andrew S. Rivkin, Cristina A. Thomas, Ian Wong, Benjamin Rozitis, Julia de León, Bryan Holler, Stefanie N. Milam, Ellen S. Howell, Heidi B. Hammel, Anicia Arredondo, John R. Brucato, Elena M. Epifani, Simone Ieva, Fiorangela La Forgia, Michael P. Lucas, Alice Lucchetti, Maurizio Pajola, Giovanni Poggiali, Jessica N. Sunshine, Josep M. Trigo-Rodríguez   +19 more
doaj   +1 more source

Photometric Survey of the Irregular Satellites [PDF]

, 2003
We present BVRI colors of 13 Jovian and 8 Saturnian irregular satellites obtained with the 2.56m Nordic Optical Telescope on La Palma, the 6.5m Magellan Baade Telescope on La Campanas, and the 6m MMT on Mt. Hopkins.
Barucci, Barucci, Boehnhardt, Boehnhardt, Bowell, Brett J. Gladman, Buratti, Byl, Carruba, Colombo, Dacosta, Dahlgren, Davis, Degewij, Degewij, Degewij, Delsanti, Doressoundiram, Fujiwara, Gladman, Gladman, Gladman, Gladman, Green, Greenberg, Hartmann, Heppenheimer, Heppenheimer, Holman, Howell, Jarvis, Jewitt, Kaare Aksnes, Kuiper, Landolt, Lassell, Luu, Maris, Matthew J. Holman, McLeod, Pollack, Rettig, Romon, Roy, Saha, Schaefer, Scotti, Sheppard, Sheppard, Sheppard, Simonelli, Stetson, Sykes, Tegler, Tegler, Tegler, Tholen, Tholen, Tody, Tody, Tommy Grav, Ćuk, Ćuk   +62 more
core   +2 more sources

THE PRECESSION OF ASTEROID 1620 GEOGRAPHOS

Odessa Astronomical Publications, 2017
The frequency analysis of the fine photometric effects in the photometric observation obtained during asteroid 1620 Geographos approaching to Earth in 1994 allowed to derive the precession of asteroid spin axis.
V. V. Prokof'eva, V. P. Tarashchuk, L. G. Karachkina   +2 more
doaj   +1 more source

Near-IR Spectral Observations of the Didymos System: Daily Evolution Before and After the DART Impact Indicates that Dimorphos Originated from Didymos

The Planetary Science Journal, 2023
Ejecta from Dimorphos following the DART mission impact significantly increased the brightness of the Didymos–Dimorphos system, allowing us to examine subsurface material.
David Polishook, Francesca E. DeMeo, Brian J. Burt, Cristina A. Thomas, Andrew S. Rivkin, Juan A. Sanchez, Vishnu Reddy   +6 more
doaj   +1 more source

On the stability of the satellites of asteroid 87 Sylvia [PDF]

, 2009
The triple asteroidal system (87) Sylvia is composed of a 280-km primary and two small moonlets named Romulus and Remus (Marchis et al. 2005b). Sylvia is located in the main asteroid belt, with semi-major axis of about 3.49 au, eccentricity of 0.08 and ...
O. Winter, L. Boldrin, E. V. Neto, R. V. Martins, S. G. Winter, R. Gomes, F. Marchis, P. Descamps   +7 more
semanticscholar   +1 more source

DYNAMICS AROUND AN ASTEROID MODELED AS A MASS TRIPOLE [PDF]

Revista mexicana de astronomía y astrofísica, 2020
The orbital dynamics of a spacecraft orbiting around irregular small celestial bodies is a challenging problem. Diffculties to model the gravity field of these bodies arise from the poor knowledge of the exact shape as observed from the Earth.
L. Santos, L. O. Marchi, P. Sousa-Silva, D. M. Sanchez, S. Aljbaae, A. Prado   +5 more
semanticscholar   +1 more source

Review: A Coherent and Comprehensive Model of the Evolution of the Outer Solar System [PDF]

, 2010
Since the discovery of the first extra-solar planets, we are confronted with the puzzling diversity of planetary systems. Processes like planet radial migration in gas-disks and planetary orbital instabilities, often invoked to explain the exotic orbits ...
Adams, Alessandro Morbidelli, Augereau, Batygin, Bottke, Brasser, Chiang, Chiang, Dones, Duncan, Fernandez, Gomes, Gomes, Gomes, Hahn, Heppenheimer, Jewitt, Kenyon, Kortenkamp, Lagrange, Levison, Levison, Levison, Marzari, Masset, Michtchenko, Morbidelli, Morbidelli, Morbidelli, Morbidelli, Morbidelli, Nesvorný, O'Brien, Pierens, Thommes, Tsiganis, Walsh, Weidenschilling, Wetherill, Youdin, Ćuk   +40 more
core   +5 more sources

Outgassing of Ordinary Chondritic Material and Some of its Implications for the Chemistry of Asteroids, Planets, and Satellites [PDF]

, 2006
We used chemical equilibrium calculations to model thermal outgassing of ordinary chondritic material as a function of temperature, pressure, and bulk compositions and use our results to discuss outgassing on asteroids and the early Earth.
Abe, Ahrens, Alexander, Allen, Ansdell, Aston, Belov, Brearley, Breger, Brett, Britt, Brown, Bruce Fegley, Chipman, Chipman, Consolgmano, Craig, Delano, Dodd, Dreibus, Fegley, Fegley, Fegley, Funkhouser, Gaffey, Garrison, Ghosh, Gibson, Gibson, Gibson, Gibson, Gooding, Grady, Hart, Hashizume, Hashizume, Hashizume, Hashizume, Hutchison, Jarosewich, Kaplan, Kargel, Kasting, Kasting, Keller, Kothari, Kress, Krot, Kuhn, Kung, Lange, Larimer, Laura Schaefer, Lee, Lewis, Lodders, Lodders, Mason, Mason, McNaughton, McNaughton, McSween, McSween, McSween, Menzies, Merrill, Merrill, Michalak, Miller, Miller, Moore, Mostefaoui, Mueller, Muenow, Müller, Nash, O'Neill, Oparin, Oró, Pavlov, Prinn, Ramdohr, Richardson, Rietmeijer, Robert, Robert, Robert, Robie, Rubin, Rubin, Russell, Sagan, Saxena, Schaefer, Schaefer, Schaefer, Schaefer, Schaefer, Slater-Reynolds, Spear, Stribling, Sugiura, Tian, Travers, Urey, Van Zeggern, Vdovykin, Von Seckendorff, Wada, Walter, Wasson, Williams, Wilson, Wänke, Yang, Zahnle   +115 more
core   +2 more sources

Formation and Evolution of Binary Asteroids

, 2015
Satellites of asteroids have been discovered in nearly every known small body population, and a remarkable aspect of the known satellites is the diversity of their properties.
Jacobson, Seth A., Walsh, Kevin J.
core   +1 more source