Venus Observations at 40 and 90 GHz with CLASS

  title={Venus Observations at 40 and 90 GHz with CLASS},
  author={Sumit Dahal and Michael K. Brewer and John Appel and Aamir M. Ali and Charles L. Bennett and Ricardo Bustos and Man Leong Chan and David T. Chuss and Joseph Cleary and Jullianna Denes Couto and Rahul Datta and Kevin L. Denis and Joseph Eimer and Francisco Espinoza and T Essinger-Hileman and Dominik Gothe and Kathleen Harrington and Jeffrey Iuliano and John Karakla and Tobias Marriage and Sasha Novack and Carolina N'unez and I. L. Padilla and Lucas P. Parker and Matthew Petroff and Rodrigo A. Reeves and Gary Rhoades and Karwan Rostem and Deniz Augusto Nunes Valle and Duncan J. Watts and J L Weiland and Edward J. Wollack and Zhilei Xu},
  journal={The Planetary Science Journal},
Using the Cosmology Large Angular Scale Surveyor, we measure the disk-averaged absolute Venus brightness temperature to be 432.3 ± 2.8 K and 355.6 ± 1.3 K in the Q and W frequency bands centered at 38.8 and 93.7 GHz, respectively. At both frequency bands, these are the most precise measurements to date. Furthermore, we observe no phase dependence of the measured temperature in either band. Our measurements are consistent with a CO2-dominant atmospheric model that includes trace amounts of… 


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