ABSTRACT
Dust is a very important material in the cosmos. Large volumes of dust are shed from dying stars that eventually get recycled to form new solar systems. The conventional astronomy approach to studying these processes relies on remote, telescope-based observation. Direct observation of the dust from stars, comets and asteroids using laboratory-based nanoanalytical instrumentation provides complementary information. For example, the average composition and crystal structure of dust grains can be inferred from circumstellar infra-red spectra, but these determinations are heavily model dependent. Using transmission electron microscopy to study individual stardust grains, we can provide detailed composition and structure information to constrain the spectral fits and also models of stellar evolution.
ABOUT OUR SPEAKER
Dr. Rhonda Stroud grew up in Rochester, NY and was first introduced to physics research in her father's lab at the Institute of Optics. She went on to receive a bachelors degree in physics from Cornell University and a Ph.D. in physics from Washington University in St. Louis. She came to the Naval Research Laboratory in 1996 as an NRC Postdoctoral Fellow and was converted to staff in 1998. In 2007, she became the head of the Nanoscale Materials Section of the Materials Science and Technology Division. Her research specialty is the application of transmission electron microscopy to the nanoscale analysis of materials, ranging from cosmic dust to thin film electronic devices.
6:00 PM Social Half-Hour / Networking, Pay-As-You-Go Bar, Sala Thai Restaurant,
6:30 PM Dinner at Sala Thai Restaurant
If you are attending the dinner,
Dinner will be served family style & include several Appetizers, Entrees, &
Rice
The price will be about $22, including taxes and tip.
There is a $2.00
surcharge for those who are not current members of NCS/OSA.
Beverages and desserts
are extra.
ADVANCED RESERVATIONS ARE REQUIRED!
7:45 PM - Lecture;
Note: you can just attend the lecture after the dinner.
If you are attending the dinner, ADVANCED RESERVATIONS ARE REQUIRED FOR DINNER Please make your reservation by 4:00 PM, Monday 20 April 2009.
RESERVATIONS REQUIRED FOR DINNER (by 4:00 PM, Monday 17 April 2006) To make reservations or for more information, please contact:
John.F.Burris John.F.Burris@nasa.gov
301 614-6031
Our following meeting is tentatively scheduled for: May 28th, 2009
The following Meeting will be our
Annual Science Fair Awards Dinner on
Thursday May 28th, 2009
at the NASA/GSFC Recreation Center in Greenbelt, MD
Please save the date. Please share this announcement with your colleagues
MEMBERSHIP DUES FOR 2008-2009 Dues are now being accepted! Pay early and avoid the rush!!!. If you have any questions, please contact the NCS/OSA secretary at the email address given below. If you are not sure if you have paid, please call (703) 922-0433 or e-mail MJLahart@aol.com to check.Encourage your colleagues to join NCS/OSA.
