TranslateAstrophysics
Stars, galaxies, gravity, and the physics of the cosmos.
Lessons
All lessonsChallenges
Exoplanetary Transit Photometry Reconstruction
Design a high-precision experimental apparatus to simulate a multi-planet transit system using a single modulated light source and varied occluding masks. You must develop a signal processing protocol to extract individual planetary radii and orbital periods from the noisy aggregate light curve data, accounting for limb-darkening effects and sampling jitter. Ensure the final model can distinguish between transit depth variations and system noise at a confidence level of 3-sigma.
Exoplanetary Transit Photometry Reconstruction
Design and calibrate a high-sensitivity light-intensity sensor array capable of capturing sub-millimagnitude fluctuations in a simulated stellar source. You must develop a signal processing algorithm to extract periodic dip data from the noise floor, accurately calculating the radius ratio of the transiting body relative to the host star. The final submission requires both the sensor calibration log and the successful estimation of the transit depth within a 2% error margin.
Exoplanetary Transit Spectroscopic Modeling
Design and construct a physical analog model to simulate the light curve degradation of a star during planetary transit, accounting for limb darkening effects and potential starspot interference. You must calibrate your model to distinguish between planetary transit and intrinsic stellar variability signatures using a light-sensitive diode and a varying opacity mask. Finally, provide a mathematical derivation that correlates your experimental signal-to-noise ratio with the projected exoplanetary radius.
