Publications (20)
A multi-frequency global view of Callisto's thermal properties from ALMA
Maria Camarca, Katherine de Kleer, Bryan Butler +5
We present thermal observations of Callisto's leading and trailing hemispheres obtained using the Atacama Large Millimeter/submillimeter Array (ALMA) at 0.87 mm (343 GHz), 1.3 mm (…
Next Generation Very Large Array Memo No. 9 Science Working Group 4: Time Domain, Fundamental Physics, and Cosmology
Geoffrey C. Bower, Paul Demorest, James Braatz +20
We report here on key science topics for the Next Generation Very Large Array in the areas of time domain, fundamental physics, and cosmology. Key science cases considered are puls…
Investigations of the Formation and Evolution of Planetary Systems
Alwyn Wootten, Bryan Butler, Antonio Hales +3
Stars and planets are the fundamental objects of the Universe. Their formation processes, though related, may differ in important ways. Stars almost certainly form from gravitation…
No evidence of phosphine in the atmosphere of Venus by independent analyses
Geronimo Villanueva, Martin Cordiner, Patrick Irwin +24
The detection of phosphine (PH3) in the atmosphere of Venus has been recently reported based on millimeter-wave radio observations (Greaves et al. 2020), and its re-analyses (Greav…
Potential for Solar System Science with the ngVLA
Imke de Pater, Bryan Butler, R. J. Sault +6
Radio wavelength observations of solar system bodies are a powerful method of probing many characteristics of those bodies. From surface and subsurface, to atmospheres (including d…
Tropospheric Composition and Circulation of Uranus with ALMA and the VLA
Edward M. Molter, Imke de Pater, Statia Luszcz-Cook +4
We present ALMA and VLA spatial maps of the Uranian atmosphere taken between 2015 and 2018 at wavelengths from 1.3 mm to 10 cm, probing pressures from 1 to 50 bar at sp…
Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Planetary and Cometary Atmospheres
Martin A. Cordiner, Alexander E. Thelen, Thibault Cavalié +26
The study of planets and small bodies within our Solar System is fundamental for understanding the formation and evolution the Earth and other planets. Compositional and meteorolog…
Science with an ngVLA: The ngVLA Reference Design
Robert Selina, Eric Murphy, Mark McKinnon +17
The next-generation Very Large Array (ngVLA) is an astronomical observatory planned to operate at centimeter wavelengths (25 to 0.26 centimeters, corresponding to a frequency range…
Thermal properties of the leading hemisphere of Callisto inferred from ALMA observations
Maria Camarca, Katherine de Kleer, Bryan Butler +5
We present a thermal observation of Callisto's leading hemisphere obtained using the Atacama Large Millimeter/submillimeter Array (ALMA) at 0.87 mm (343 GHz). The angular resolutio…
Evidence of a Polar Cyclone on Uranus from VLA Observations
Alex Akins, Mark Hofstadter, Bryan Butler +4
We present observations of Uranus in northern spring with the VLA from 0.7 cm to 5 cm. These observations reveal details in thermal emission from Uranus' north pole at 10s of bars,…
Revealing Callisto's Near Subsurface Thermophysical Properties with ALMA Calibration Data
Cole Meyer, Maria Camarca, Katherine de Kleer +3
Thermal images at different wavelengths probe varying subsurface depths of planetary bodies, and therefore can inform us about their compositions, thermophysical properties, and im…
The Tropical Atmosphere of Jupiter - Shallow Weather, Deep Plumes, and Vortices
Chris Moeckel, Imke de Pater, Bob Sault +1
Towering storms, swirling clouds, and vortices are the cloud tops manifestation of complex weather systems shaping the atmosphere of Jupiter. We use observations from Juno's MicroW…
First ALMA Millimeter Wavelength Maps of Jupiter, with a Multi-Wavelength Study of Convection
Imke de Pater, R. J. Sault, Chris Moeckel +15
We obtained the first maps of Jupiter at 1-3 mm wavelength with the Atacama Large Millimeter/Submillimeter Array (ALMA) on 3-5 January 2017, just days after an energetic eruption a…
The Next Generation Very Large Array: A Technical Overview
Robert J. Selina, Eric J. Murphy, Mark McKinnon +14
The next-generation Very Large Array (ngVLA) is an astronomical observatory planned to operate at centimeter wavelengths (25 to 0.26 centimeters, corresponding to a frequency range…
Ganymede's Surface Properties from Millimeter and Infrared Thermal Emission
Katherine de Kleer, Bryan Butler, Imke de Pater +4
We present thermal observations of Ganymede from the Atacama Large Millimeter Array (ALMA) in 2016-2019 at a spatial resolution of 300-900 km (0.1-0.2'' angular resolution) and fre…
A Millisecond Interferometric Search for Fast Radio Bursts with the Very Large Array
Casey J. Law, Geoffrey C. Bower, Sarah Burke-Spolaor +7
We report on the first millisecond timescale radio interferometric search for the new class of transient known as fast radio bursts (FRBs). We used the Very Large Array (VLA) for a…
Surface properties of the Kalliope-Linus system from ALMA and VLA data
Katherine de Kleer, Saverio Cambioni, Bryan Butler +1
The abundance and distribution of metal in asteroid surfaces can be constrained from thermal emission measurements at radio wavelengths, informing our understanding of planetesimal…
Atmospheric waves and dynamics beneath Jupiter's clouds from radiowavelength observations
Richard Cosentino, Bryan Butler, Bob Sault +3
We observed Jupiter at wavelengths near 2 cm with the Karl G. Jansky Very Large Array in February 2015. These frequencies are mostly sensitive to variations in ammonia abundance an…
Next Generation Very Large Array Memo No. 6, Science Working Group 1: The Cradle of Life
Andrea Isella, Charles L. H. Hull, Arielle Moullet +33
This paper discusses compelling science cases for a future long-baseline interferometer operating at millimeter and centimeter wavelengths, like the proposed Next Generation Vary L…
Observations of Titan's Stratosphere During Northern Summer: Temperatures, CH3CN and CH3D Abundances
Alexander E. Thelen, Conor A. Nixon, Martin A. Cordiner +11
Titan's atmospheric composition and dynamical state have previously been studied over numerous epochs by both ground- and space-based facilities. However, stratospheric measurement…