Microwave Observations of Venus with CLASS
Sumit Dahal, Michael K. Brewer, Alex B. Akins, John W. Appel, Charles, L. Bennett, Ricardo Bustos, Joseph Cleary, Jullianna D. Couto, Rahul Datta,, Joseph Eimer, Thomas Essinger-Hileman, Jeffrey Iuliano, Yunyang Li, Tobias A., Marriage, Carolina N\'u\~nez, Matthew A. Petroff

TL;DR
This paper presents microwave brightness temperature measurements of Venus across four frequency bands using CLASS, revealing atmospheric temperature insights and lower absorber abundances than previous studies.
Contribution
First microwave brightness temperature measurements of Venus with CLASS across multiple frequencies, providing new atmospheric temperature and composition insights.
Findings
Measured brightness temperatures at four microwave frequencies.
No dependence of temperatures on solar illumination observed.
Indicates warmer atmospheric temperatures and lower absorber abundances than prior data.
Abstract
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 2.8 K, 355.6 1.3 K, 317.9 1.7 K, and 294.7 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 ( 7 K higher) mean atmospheric temperatures and lower abundances of microwave continuum absorbers than those inferred from prior radio occultation measurements.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsPlanetary Science and Exploration · Space Science and Extraterrestrial Life · Space Exploration and Technology
