D-type asteroid

D-type asteroids have a very low albedo and a featureless reddish spectrum.[1] It has been suggested that they have a composition of organic-rich silicates, carbon and anhydrous silicates, possibly with water ice in their interiors.[2] D-type asteroids are found in the outer asteroid belt and beyond; examples are 152 Atala, 944 Hidalgo and most Jupiter trojans. It has been suggested that the Tagish Lake meteorite was a fragment from a D-type asteroid, and that the Martian moon Phobos is closely related.[3]

The Nice model suggests that D-type asteroids may have originated in the Kuiper belt.[4] 46 D-type asteroids are known, including: 3552 Don Quixote, 944 Hidalgo, 624 Hektor, and 10199 Chariklo.[5]

  1. ^ Cite error: The named reference Fitzsimmons1994 was invoked but never defined (see the help page).
  2. ^ Jones, Thomas D.; Lebofsky, Larry A.; Lewis, John S.; Marley, Mark S. (1990-11-01). "The composition and origin of the C, P, and D asteroids: Water as a tracer of thermal evolution in the outer belt". Icarus. 88 (1): 172–192. Bibcode:1990Icar...88..172J. doi:10.1016/0019-1035(90)90184-B. ISSN 0019-1035.
  3. ^ Cite error: The named reference yahoo-phobos was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference McKinnon-2008 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference SBDB-D-type-list was invoked but never defined (see the help page).