Asian-Oceanian Geoscience Society (AOGS) Annual meeting
Singapore, 2 - 7 August 2015
Abstracts due is extended! Now it is 28 February 2105
We kindly invite you to attend the AOGS-2015 meeting
and participate in the following sessions:
Session PS03: Polarimetry of Planetary Systems: Observations, Theory and Models
Polarimetry is currently enjoying a rejuvenation in various astronomical applications. As a complementary techinque to imaging and spectroscopy,
polarization allows the investigation of scatttering properties of variety of media ranging from planetary atmospheres, comets, small bodies (planetary
satellites, asteroids, Kuiper Belt objects, etc.) to detection and characterization of exoplanets, brown dwarfs, star and planet forming regions; characterization of magnetic fields and search for optically active molecules in a search for habitability elsewhere than our earth. We invite contributions from observers, modellers, laboratory measurements, instrument designers and missions. We anticipate half to one day of presentations including oral and poster contributions.
Session PS04: Comets, Asteroids and Other Small Bodies of the Solar System: From 67P/Churyumov-Gerasimenko to Chariklo
The composition and physical properties of Small Solar System Bodies (SSSBs), remnants of the formation of planets, are key to better understand
our solar system. Increased knowledge of their surface properties and their potential as resources are also necessary to prepare for robotic and human
exploration. Missions such as ESA/Rosetta, ESA/Gaia, NASA/OSIRIS-Rex, JAXA/Hyabusa-2, NASA/Dawn and NASA/New Horizons, to study asteroids, comets,
dwarf planets and TNOs are poised to provide new information on SSSBs. This session welcomes abstracts on the remarkable results bringing
information on the internal structure and composition of SSSBs based on space and ground-based data, numerical models, as well as instrument/mission
concepts in the prospect of future exploration, including Rosetta/67P, C/SidingSpring, C/2014 Q1, C/2012 K1, Chariklo, Ceres, Vesta.. We anticipate
a half-day to a full day session.
A new FORTRAN program is available for the computation of polarized bidirectional reflectance of a semi-infinite homogeneous slab composed of sparsely distributed, arbitrarily shaped, randomly oriented particles. The program is based on a numerically exact solution of the vector radiative transfer equation. The following web site provides access to the program and an accompanying detailed user guide: http://www.giss.nasa.gov/staff/mmishchenko/brf/ Please address your comments and questions to Michael Mishchenko at michael.i.mishchenko at nasa.gov
New experimental feature of ADDA: an ability to use rectangular dipoles - volume elements with the shape of rectangular parallelepipeds (instead of the default cubes). If you plan to simulate very oblate or prolate particles, when the smallest dimension is much smaller than the wavelength (e.g. needles or sheets), then I encourage you to try it out. The acceleration can be up to 100 times.
The code is available at the branch http://code.google.com/p/a-dda/source/browse/branches/rectangular_dipole , so you have to compile it yourself. The only documentation so far is the recently published paper: Smunev DA, Chaumet PC, Yurkin MA. Rectangular dipoles in the discrete dipole approximation. J. Quant. Spectrosc. Radiat. Transfer 2015;156:67-79. which apart from in-depth technical and theoretical discussion contains a brief description of how to use the new feature together with simulation examples. PDF of the paper is freely available for 50 days through http://authors.elsevier.com/a/1QZzd564S3Gm~ , and after that at
If you have any questions, feel free to use adda-discuss group, or submit an issue to the issue tracker (from Maxim Yurkin).