Report
Microwave Observations of Venus with CLASS
| العنوان: | Microwave Observations of Venus with CLASS |
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| المؤلفون: | Dahal, Sumit, Brewer, Michael K., Akins, Alex B., Appel, John W., Bennett, Charles L., Bustos, Ricardo, Cleary, Joseph, Couto, Jullianna D., Datta, Rahul, Eimer, Joseph, Essinger-Hileman, Thomas, Iuliano, Jeffrey, Li, Yunyang, Marriage, Tobias A., Núñez, Carolina, Petroff, Matthew A., Reeves, Rodrigo, Rostem, Karwan, Shi, Rui, Valle, Deniz A. N., Watts, Duncan J., Weiland, Janet L., Wollack, Edward J., Xu, Zhilei |
| المصدر: | The Planetary Science Journal, 4:154 (7pp), 2023 August |
| سنة النشر: | 2023 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics |
| الوصف: | We report on the disk-averaged absolute brightness temperatures of Venus measured at four microwave frequency bands with the Cosmology Large Angular Scale Surveyor (CLASS). We measure temperatures of 432.3 $\pm$ 2.8 K, 355.6 $\pm$ 1.3 K, 317.9 $\pm$ 1.7 K, and 294.7 $\pm$ 1.9 K for frequency bands centered at 38.8, 93.7, 147.9, and 217.5 GHz, respectively. We do not observe any dependence of the measured brightness temperatures on solar illumination for all four frequency bands. A joint analysis of our measurements with lower frequency Very Large Array (VLA) observations suggests relatively warmer ($\sim$ 7 K higher) mean atmospheric temperatures and lower abundances of microwave continuum absorbers than those inferred from prior radio occultation measurements. Comment: 10 pages, 3 figures, published in PSJ |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/PSJ/acee76 |
| URL الوصول: | http://arxiv.org/abs/2304.07367 |
| رقم الانضمام: | edsarx.2304.07367 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/PSJ/acee76 |
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