The Planetary Science Journal (Jan 2023)
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 Núñez,
- Matthew A. Petroff,
- Rodrigo Reeves,
- Karwan Rostem,
- Rui Shi,
- Deniz A. N. Valle,
- Duncan J. Watts,
- Janet L. Weiland,
- Edward J. Wollack,
- Zhilei Xu
Affiliations
- Sumit Dahal
- ORCiD
- NASA Goddard Space Flight Center , 8800 Greenbelt Road, Greenbelt, MD 20771, USA ; [email protected]; The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Michael K. Brewer
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Alex B. Akins
- ORCiD
- Jet Propulsion Laboratory, California Institute of Technology , Instruments Division, Pasadena, CA 91011, USA
- John W. Appel
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Charles L. Bennett
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Ricardo Bustos
- ORCiD
- Facultad de Ingeniería, Universidad Católica de la Santísima Concepción , Alonso de Ribera 2850, Concepción, Chile
- Joseph Cleary
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Jullianna D. Couto
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Rahul Datta
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Joseph Eimer
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Thomas Essinger-Hileman
- ORCiD
- NASA Goddard Space Flight Center , 8800 Greenbelt Road, Greenbelt, MD 20771, USA ; [email protected]; The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Jeffrey Iuliano
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA; Department of Physics and Astronomy, University of Pennsylvania , 209 South 33rd Street, Philadelphia, PA 19104, USA
- Yunyang Li
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Tobias A. Marriage
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Carolina Núñez
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Matthew A. Petroff
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA; Center for Astrophysics, Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Rodrigo Reeves
- ORCiD
- CePIA, Departamento de Astronomía, Universidad de Concepción , Concepción, Chile
- Karwan Rostem
- ORCiD
- NASA Goddard Space Flight Center , 8800 Greenbelt Road, Greenbelt, MD 20771, USA ; [email protected]
- Rui Shi
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Deniz A. N. Valle
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Duncan J. Watts
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA; Institute of Theoretical Astrophysics, University of Oslo , P.O. Box 1029 Blindern, NO-0315 Oslo, Norway
- Janet L. Weiland
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA
- Edward J. Wollack
- ORCiD
- NASA Goddard Space Flight Center , 8800 Greenbelt Road, Greenbelt, MD 20771, USA ; [email protected]
- Zhilei Xu
- ORCiD
- The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University , 3701 San Martin Drive, Baltimore, MD 21218, USA; MIT Kavli Institute, Massachusetts Institute of Technology , 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- DOI
- https://doi.org/10.3847/PSJ/acee76
- Journal volume & issue
-
Vol. 4,
no. 8
p. 154
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. We measure temperatures of 432.3 ± 2.8, 355.6 ± 1.3, 317.9 ± 1.7, 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 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.
Keywords
