中文

利用 CLASS 对金星进行的微波观测

地球与行星天体物理 2023-08-30 v2 天体物理仪器与方法

摘要

我们报道了利用宇宙学大角尺度巡天仪(Cosmology Large Angular Scale Surveyor, CLASS)在四个微波频段测得的金星盘平均绝对亮温度。对于中心频率分别为 38.8、93.7、147.9 和 217.5 GHz 的频段,我们测得的温度分别为 432.3 ±\pm 2.8 K、355.6 ±\pm 1.3 K、317.9 ±\pm 1.7 K 和 294.7 ±\pm 1.9 K。对于所有四个频段,我们均未观测到所测亮温度对太阳光照的依赖关系。将我们的测量结果与较低频段的甚大阵(Very Large Array, VLA)观测进行联合分析表明,相较于先前射电掩星测量推断的结果,平均大气温度相对较暖(约高 7 K),且微波连续吸收体的丰度较低。

关键词

引用

@article{arxiv.2304.07367,
  title  = {Microwave Observations of Venus with CLASS},
  author = {Sumit Dahal and Michael K. Brewer and Alex B. Akins and John W. Appel and Charles L. Bennett and Ricardo Bustos and Joseph Cleary and Jullianna D. Couto and Rahul Datta and Joseph Eimer and Thomas Essinger-Hileman and Jeffrey Iuliano and Yunyang Li and Tobias A. Marriage and Carolina Núñez and Matthew A. Petroff and Rodrigo Reeves and Karwan Rostem and Rui Shi and Deniz A. N. Valle and Duncan J. Watts and Janet L. Weiland and Edward J. Wollack and Zhilei Xu},
  journal= {arXiv preprint arXiv:2304.07367},
  year   = {2023}
}

备注

10 pages, 3 figures, published in PSJ