PAP316 - Astrophysical light scattering problems
Advanced Course, 5 credits, PAP316, Spring 2025, Period 4
Astrophysical light scattering problems provides a cross-scale journey in light scattering (electromagnetic scattering) with a particular emphasis in applications. The course starts with an introduction to the basic concepts and computational methods, whereafter experimental measurements are assessed. Various applications are introduced for planetary system objects, interstellar and circumstellar dust, and exoplanets. Students are actively involved in the interpretation of spectroscopic, photometric, and polarimetric observations as well as laboratory measurements. The interpretation takes place using both laptop and supercomputing environments.
Lecturers: Prof. Karri Muinonen, Dr. Antti Penttilä, Dr. Anne Virkki, Dr. Yehor Surkov, Dr. Zuri Gray. Course assistant: Vesa Björn.
Scope:
Timetable and contents:
Lectures are held in Physicum D116.
- March 10, Introduction to photometry and polarimetry, 14-16, , KM
- March 12, Introduction to spectrometry; Mercury, Venus, and Mars, 12-14, , , , KM
- March 17, Icy moons of outer planets, Saturn’s Rings, 14-16, , KM
- March 19, Transneptunian objects and Centaurs, 12-14, , KM
- March 24, Interstellar polarization, 14-16, , KM
- March 26, Exoplanets, 12-14, , , KM
- March 31, Asteroids, radar measurements, 14-16, AV,
- April 2, Asteroids, radar measurements, 12-14, AV,
- April 7, The Moon, 14-16, YS
- April 9, Interplanetary dust, 12-14, YS
- April 14, Experimental measurements - Video of the Granada scattering measurements by Olga Muñoz and narrated slides about reflectance spectra and space weathering by Tomas Kohout14-16, AP and .
- April 16, Experimental measurements - and . 12-14, AP
- April 28, Comets, astronomical observations, 14-16, ZG
- April 30, Comets, astronomical observations, 12-14, ZG
Exercises:
Exercise session are in Physicum D104
- March 14, 10-12
- Guidance for , answers due April 2
- Guidance for projects
- March 21, 10-12
- Guidance for Shkuratov et al., Icarus 1999, answers due April 9 ,
- Guidance for projects and Exercise 1
- March 28, 10-12
- Guidance for B&H Mie scattering program, SIRIS4-framework, answers due April 23 ,
- Guidance for projects and Exercises 1 & 2
- April 4, 10-12, Exercise 1
- Guidance for projects and Exercise 3
- April 11, 10-12, Exercise 2
- Guidance for projects
- April 25, 10-12, Exercise 3
- Guidance for projects
- May 2, 10-12
- Project workshop
Project:
- Article recipe, 2021-03-18
- Relevant articles
- Software
- Trigonometric polarization system, with systematic scanning of exponents PolTrig
- Data
- (1) Ceres Geometric albedo p = 0.090
- (20) Massalia p = 0.210
- (24) Themis p = 0.067
- (44) Nysa p = 0.44
- (55) Pandora p = 0.301
- (64) Angelina p = 0.48
- (419) Aurelia p = 0.0455
- Mercury p = 0.142
- Moon p = 0.136
- Asteroid Polarimetric Database (NASA/PDS): https://sbn.psi.edu/pds/resource/apd.html
- Granada-Amsterdam Light Scattering Database: https://www.iaa.csic.es/scattering/index.html
Past courses:
- Astrophysical light scattering problems 2023
- Astrophysical light scattering problems 2021
- Electromagnetic scattering II, fall 2018