PTYS/LPL Colloquium Schedule

Colloquia are held in Kuiper 308 or 312, beginning at 3:45 p.m. Refreshments at 3:30 p.m. in the Kuiper Atrium.

Tuesday, Apr 22 LPL Colloquium:
Dr. Stuart Bale
Space Sciences Laboratory
University of California, Berkeley

The kinetic solar wind and the NASA Solar Probe Plus mission
The solar wind expands into interplanetary space, from its origin in the superhot solar corona. The underlying physics responsible for coronal heating isn't clear, although mechanisms such as Alfven wave heating, magnetic reconnection, and shock heating have all been proposed and have merits. As the wind evolves into space, it continues to be heated as it expands - presumably by some wave-heating process. Recent measurements at 1AU show clearly the signatures of kinetic plasma physics and suggest that these effects are dominant at the wind source. In this talk, I'll give an overview of the problem, describe some of these recent measurements, and conclude with a discussion of NASA's Solar Probe Plus (SPP) mission. SPP will launch in 2018 and fly directly into the solar corona to make in situ measurements of the physical processes of coronal heating.

Host: Joe Giacalone

Kuiper Space Sciences: Room 312
3:45 pm
Tuesday, Apr 29 LPL Colloquium:
Dr. Bashar Rizk
OCAMS Instrument Scientist
University of Arizona - Lunar and Planetary Laboratory

Imaging Science, OCAMS and Bennu
Modern planetary imagers operate at ever-greater resolution, throughput and data loading. Their scientific goals remain the same: 1) reveal new solar system phenomenon, 2) document the visual history of its surfaces and 3) provide a context for physical and chemical anyalysis of meteorites and in situ samples. The trio of imagers in the OSIRIS-REx Camera Suite-OCAMS-are reviewed from that point of view. OCAMS' expected scientific return is discussed while noting the suite's critical function as a mission system to enable the selection of a primary sample site. In addition, Bennu's status as a microgravity object is emphasized. It will serve as a high-fidelity and readily observable physical analog to the many million billion planetesimals that contributed to the formation of the planets and that, directly or indirectly, currently populate the Kuiper Belt, Oort Cloud, Jovian Trojan points and, perhaps, the Main Belt and Near-Earth Asteroid populations.

Kuiper Space Sciences: Room 312
3:45 pm
Tuesday, May 6 LPL Colloquium:
Dr. Leslie Young
Principal Scientist
Southwest Research Institute

Kuiper Space Sciences: Room 312
3:45 pm