- How to Build an Asteroid11 Sep, 2020
- A Holistic Approach to Understanding Asteroids: Laboratory Experiments, Theoretical Models, & Radar Observations 11 Sep, 2020
- Sharing the Connection: Arecibo’s Planetary Radar & NASA’s OSIRIS-REx Mission to Bennu10 Sep, 2020
- Analyzing Gravitational Fields Around Small Bodies in Support of Future Spacecraft Missions09 Sep, 2020
- Broken Cable Damages Arecibo Observatory11 Aug, 2020
- Open Position: Research Intern06 Aug, 2020
- Recorded Session: Arecibo Observatory Virtual Town Hall30 Jul, 2020
- The Arecibo Observatory congratulates Dr. Martha P. Haynes, recipient of the Janksy Lectureship 2020! 23 Jul, 2020
- AO Adapts: Continued Workshops, Training, and Education06 Jul, 2020
- Annoucing the Arecibo Observatory Town Hall01 Jul, 2020
- AO Features: Former AO Postdoctoral Researcher Kristen Jones30 Jun, 2020
- New AO Lidar Observations of Ca+ in the Mesosphere and Thermosphere29 Jun, 2020
- Breaking Assumptions on the Excitation Temperatures in Molecular Clouds29 Jun, 2020
- Modifying the Earth’s Ionosphere from Arecibo29 Jun, 2020
- AO radar measurements of Jupiter’s Moons29 Jun, 2020
- A New Approach for Understanding the Occurrence Rate of MSTIDs in the Caribbean Nighttime Ionosphere29 Jun, 2020
|Planetary Science||AO Colloquium: Dr. Alain Herique|
On January 28th, the AO Colloquium Series featured Dr. Alain Herique of the Institut de Planetologie et d’Astrophysique de Grenoble (IPAG) University Grenoble Alpes in France.
Dr. Herique’s research focuses on understanding the internal structure of comets and asteroids using spacecraft radar systems. Such measurements help us to better understand the history of the small bodies since their accretion in the early Solar System.
Specifically, he emphasizes the need to use radar to measure the regolith properties on the surface, and to use bistatic radar to probe the deep interiors. This measurement was successfully done at the comet 67P/Churyumov-Gerasimenko using the CONSERT instrument on the European Space Agency’s (ESA) Rosetta Mission, which was co-supervised by Dr. Herique.
During the AO colloquium, Dr. Herique discussed the future of such space-based measurements. He focused on the expected scientific return of tomography measurements that will be made by ESA’s Hera mission to the asteroid Didymos and its small moon. Hera will provide follow-up measurements of the targets after NASA’s Double Asteroid Redirection Test (DART) mission intentionally impacts the moonlet as a planetary defense technology demonstration.
“Dr. Herique was invited to discuss asteroid radar tomography, which intersects with our own studies of the near-surface properties of asteroids using Arecibo,” said Dr. Dylan Hickson, postdoctoral researcher at AO. “We made a lot of progress discussing how AO could work with future spacecraft to complete bistatic tomography experiments of asteroids.”
“We made a lot of progress discussing how AO could work with future spacecraft to complete bistatic tomography experiments of asteroids.” - Dr. Dylan Hickson, Postdoctoral Researcher at AO.Dr. Herique agreed. "It is a pleasure to collaborate with the group at Arecibo. We have plenty of joint fields of interest: small bodies’ physical properties; dielectric lab measurements and modeling to estimate composition and porosity; propagation and radar backscattering modeling; and, of course, radar techniques and processing." He added, “It's all a matter for discussion and collaboration”.
Watch the interview with Dr. Alain Herique
January 28, 2020: DIRECT OBSERVATIONS OF SMALL BODIES’ INTERIOR WITH RADAR ONBOARD PLANETARY PROBES by Dr. Alain Herique
Article written by Dr. Tracy Becker - AO Collaborator / SwRI Research Scientist
Keywords: arecibo, observatory,Herique, colloquium, dart, esa, solar, system, rosetta, mission, Grenoble, France, Churyumov, Gerasimenko