Infrared observations of the extinct cometary candidate minor planet (3200) 1983TB
Simon GreenDepartment of Astronomy, University of Leicester, University Road, Leicester LE1 7RHA. J. MeadowsDepartment of Astronomy, University of Leicester, University Road, Leicester LE1 7RHJohn K. DaviesDepartment of Space Research, University of Birmingham, PO Box 363, Birmingham B15 2TT
1985en
ABI
Аннотация
The discovery of Apollo asteroid (3200) 1983TB in an orbit virtually coincident with the Geminid meteor stream has raised the possibility that it is an extinct cometary nucleus. Infrared observations between 1 and 20 µm are presented from which an albedo of 0.11±0.02 and diameter of (4.70±0.5) km are derived. Both the thermal spectrum (which implies a surface of relatively high conductivity) and the reflected colors, disagree with the expected properties of an extinct cometary nucleus. However, the blue JHK colors and moderate albedo, when combined with optical data, show 1983TB to be a unique object among the known Apollo asteroids.
Перевод пока недоступен
Идентификаторы
Цитирования и источники
Цитирований: 2Использованных источников: 0