HIGH SPATIAL RESOLUTION IMAGING OF THERMAL EMISSION FROM DEBRIS DISKS

Imaging Circumstellar Debris Disks

In the early 1980s, the Infrared Astronomy Satellite (IRAS) detected thermal emission from dust grains with temperatures of 50-125 K and fractional luminosities (Lgrains/L∗) in the range 10 -10 around four main sequence stars: Vega, Fomalhaut, β Pictoris, and ǫ Eridani. Coronagraphic observations of β Pic confirmed that the grains do indeed lie in a disk, perhaps associated with a young planeta...

High-resolution thermal inertia derived from the Thermal Emission Imaging System (THEMIS): Thermal model and applications

[1] Thermal inertia values at 100 m per pixel are determined using nighttime temperature data from the Thermal Emission Imaging System (THEMIS) on the Mars Odyssey spacecraft, producing the highest-resolution thermal inertia data set to date. THEMIS thermal inertia values have an overall accuracy of 20%, a precision of 10–15%, and are consistent with both Thermal Emission Spectrometer orbital a...

High Spatial Resolution Thermal Imaging of Multiple Section Semiconductor Lasers

Temperature strongly affects output power and peak wavelength characteristics of active optoelectronic devices. In this paper we describe how thermoreflectance imaging technique can be used to obtain thermal maps of photonic devices under operation. Submicron spatial resolution and <0.1C temperature resolution has been achieved. Temperature non-uniformity is investigated in various multi sectio...

Modeling the spatial structure of debris disks

We present high spatial resolution observations and detailed multi-wavelength modeling of the structure and composition of two prominent debris disks and a systematic study on the observability of planet-disk interaction in debris disks with present and future instruments. As the spatial structure of debris disks is, in addition to stellar gravity and radiation, mainly influenced by planet-disk...

High Spatial Resolution Lipid Imaging