|
|
|
||
| All events are subject to date and time change without notice. | ||
| Tue, 21 Feb 2012 | LPL Colloquium: Dr. Edward C. Stone David Morrisroe Professor of Physics California Institute of Technology "The Voyager Journey to Interstellar Space" Abstract: Launched in 1977 on a journey to the giant outer planets and beyond, Voyager 1 and 2 are now at 119 and 97 AU, exploring the spatial and dynamical properties of the heliosheath as the subsonic solar wind approaches the boundary of the heliosphere. Voyager 1 is in a stagnation region in the northern heliosheath, with a slow wind speed, enhanced magnetic field, and continuing changes in the intensities of particles accelerated in the outer heliosphere and of cosmic ray electrons and nuclei that are diffusing in from nearby regions of the Galaxy. In contrast, at Voyager 2 in the southern heliosheath the flow is faster and slowly turning tailward. These and other observations will be discussed in the context of models of the interaction of the solar and interstellar winds that are evolving as the Voyager journey to interstellar space continues. Kuiper Space Sciences: Room 308 | 3:30 pm |
| Tue, 6 Mar 2012 | LPL Colloquium: Dr. David Wilner Associate Director Harvard-Smithsonian Center for Astrophysics "Millimeter-wave Insights into Planet-Forming Disks around Young Stars" Abstract: The circumstellar disks that arise naturally from the star formation process are the sites where planets are born. Observations at millimeter wavelengths play a key role in probing these disks by providing direct access to the cool dust and gas that trace the bulk of the disk mass, with no contrast problem from starlight. I will discuss results from our recent observations of nearby 1-10 Myr old disks from the Submillimeter Array on Mauna Kea, Hawaii, designed to provide insight into disk evolution processes and planet-forming potential. Remarkably, a significant population of these disks show compelling evidence that planet formation is well underway. Finally, I will touch on the incredible advances expected with the international Atacama Large Millimeter Array, now under construction and starting early science. Kuiper Space Sciences: Room 308 | 3:30 pm |
| Tue, 1 May 2012 | LPL Colloquium: Dr. Conel Alexander Carnegie Institution of Washington Kuiper Space Sciences: Room 308 | 3:30 pm |
|
Directory | LARS | LPL Library | LPL WebMail | Webmaster |
Lunar and Planetary Laboratory 1629 E. University Blvd. Tucson AZ 85721-0092 Phone: 520.621.6963 | Fax: 520.621.4933 © 2011 Arizona Board of Regents |
|