Constraining, near-Earth object albedos using near-infrared spectroscopy

被引：50
|
作者：
Rivkin, AS
Binzel, RP
Bus, SJ
机构：
[1] MIT, Cambridge, MA 02139 USA
[2] Inst Astron, Hilo, HI 96720 USA
来源：
ICARUS | 2005年 / 175卷 / 01期
基金：
美国国家航空航天局; 美国国家科学基金会;
关键词：
asteroids; composition; infrared observations; surfaces;
D O I：
10.1016/j.icarus.2004.11.005
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Low-albedo near-Earth objects (NEOs) are warm enough to emit detectable thermal flux at 2.5 mu m 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. (c) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：175 / 180
页数：6
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