Astrophysics (Index)About

survey depth

(depth)
(indication of how far a survey reaches)

The phrase survey depth indicates how far an astronomical survey reaches, but is cited using different measures. The obvious measure of distance (parsecs or light-years) is probably most often used for explanations for public consumption, e.g., news releases, presumably estimated from those more commonly used for scientific purposes, which include:

A survey may also have a minimum reach, and the term survey depth might be used for a specification of both maximum and minimum, or for the difference between maximum and minimum. Such a declared minimum could be because of the restriction of atmospheric windows on ground-based observation, or could merely be because the survey is targeting a particular era of the universe.


(surveys)
Further reading:
http://legacysurvey.org/decamls/
https://rsaa.anu.edu.au/research/established-projects/skymapper-southern-sky-survey
https://hsc-release.mtk.nao.ac.jp/doc/index.php/survey-depth/
https://ui.adsabs.harvard.edu/abs/2018ApJS..235...33D/abstract

Referenced by pages:
deep field (DF)
deep survey
seeing
SIMP
survey field

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