Constraining near-Earth object albedos using near-infrared spectroscopy |
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| Authors: | AS Rivkin RP Binzel SJ Bus |
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| Institution: | a Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge MA 02139, USA
b Institute for Astronomy, 640 N. A'ohoku Place #209, Hilo, HI 96720, USA |
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| Abstract: | Low-albedo near-Earth objects (NEOs) are warm enough to emit detectable thermal flux at 2.5 μm when near perihelion. Thermal radiation can account for 33% or more of the total flux for an object with an albedo ?0.04 at 1.0 AU. This is measurable using near-infrared spectroscopic instruments enabling albedos to be constrained for a larger sample of NEOs. |
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| Keywords: | Asteroids Asteroids composition Infrared observations Surfaces asteroids |
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