论文标题
热改变和差异升华可以创建伪造的“岩石彗星”活动和蓝色
Thermal Alteration and Differential Sublimation Can Create Phaethons "Rock Comet" Activity and Blue Color
论文作者
论文摘要
2010年，Jewitt和Li发表了一篇论文，研究了Comet-asteroid过渡对象的行为3200 Phaethon，认为它在整个轨道的大部分轨道上都像小行星一样，但是在其附近的围绕围栏的距离仅为0.165 au，距离太阳的距离仅为0.165 au，其天气的温度足以使岩石的温度很热，足以使岩石变热（> 1000 k，> 1000 k，2016年6月。因此，它的作用就像是“岩石彗星”，因为蒸发岩石产生的气体从体内释放出来，类似于将水冰更熟悉的升华为真空吸尘器，可在〜3 au之内的彗星中看到的真空吸尘器。在本说明中，我们预测，在Perihelion的QGAS 〜10 $^{22} $ mol/sec的同样的热效应也将有助于通过优先的热改变和过多的表面Fe和折磨有机物，已知的重新填充和黑暗的Agents，有助于极大地蓝色Phaethon的表面。这些预测是可以通过在类似Phaethon样的小围栏轨道中的其他物体表面的光谱蓝色的迹象，以及通过jaxa by jaxa by jaxa by Phaethon的Phaethon+ Missions的Phaethons表面和昏迷组成的原位测量的迹象进行测试。
In 2010 Jewitt and Li published a paper examining the behavior of comet-asteroid transition object 3200 Phaethon, arguing it was asteroid-like in its behavior throughout most of its orbit, but that near its perihelion, at a distance of only 0.165 AU from the sun, its dayside temperatures would be hot enough to vaporize rock (>1000 K, Hanus et al. 2016). Thus it would act like a "rock comet" as gases produced from evaporating rock were released from the body, in a manner similar to the more familiar sublimation of water ice into vacuum seen for comets coming within ~3 AU of the Sun. In this Note we predict that the same thermal effects that would create "rock comet" behavior with Qgas ~ 10$^{22}$ mol/sec at perihelion would also help greatly bluen Phaethon's surface via preferential thermal alteration and sublimative removal of surface Fe and refractory organics, known reddening and darkening agents. These predictions are testable by searching for signs of spectral bluening of the surfaces of other objects in Phaethon-like small perihelion orbits, and by in situ measurements of Phaethons surface and coma composition near perihelion with the upcoming DESTINY+ mission to Phaethon by JAXA.
