Chapter 4. Fundamental Detector Types
As we will often note, there are four flavors or types of data:
- Images → imaging
- Brightness → photometry
- Color → spectroscopy
- Timing → variability
Each involves a separate data goal, and together all four fold into your detector profile and its bandwidth needs (Example 4-1).
Brightness: e.g. 3.846 x 1,026 W in luminosity, 4.83 absolute magnitude Spectral: e.g. "color image plus IR/thermal" Timing: e.g. "On during the day, off at night"
You can also mix these data goals. An imaging spectrometer is a camera (imaging) that gives you a separate data frame for each color. Instead of seeing one picture, you can compare, for example, the image in red against the image in blue. ...