In physics, optical depth or optical thickness is the natural logarithm of the ratio of incident to transmitted radiant power through a material. Thus...
11 KB (1,596 words) - 21:41, 25 April 2024
Optical depth in astrophysics refers to a specific level of transparency. Optical depth and actual depth, τ {\displaystyle \tau } and z {\displaystyle...
5 KB (681 words) - 12:54, 12 December 2023
1–2 km—and has the equivalent optical depth 0.1–0.2 km at the wavelength 2.2 μm. The normal optical depth is 0.1–0.2. The optical depth of the λ ring shows strong...
52 KB (6,210 words) - 14:48, 22 April 2024
Glossary of astronomy (redirect from Rosseland optical depth)
Rosseland optical depth An extinction coefficient of an atmosphere, which describes the net opacity to radiation at a given depth. See optical depth. rotation...
160 KB (18,369 words) - 05:03, 12 May 2024
modulated by the optical depth to the viewer (i.e. 1/e times the emission at 1 optical depth, 1/e2 times the emission at 2 optical depths, etc.). Near...
10 KB (1,393 words) - 02:39, 25 May 2024
Absorbance (redirect from Optical density)
related to optical depth by A = τ ln 10 = τ log 10 e , {\displaystyle A={\frac {\tau }{\ln 10}}=\tau \log _{10}e\,,} where τ is the optical depth. Spectral...
21 KB (2,915 words) - 23:49, 20 December 2023
proportion of dust in the rings (between 20% and 70%) is high, while their optical depth is low to moderate, at less than 0.1. Uniquely, the Adams ring includes...
34 KB (3,763 words) - 02:24, 10 May 2024
optical depth is proportional to the number of absorbers and scatterers along that length, typically increasing with decreasing altitude. The optical...
56 KB (6,854 words) - 18:02, 27 April 2024
MOLA Digital Elevation Map (DEM) were used to calculate atmospheric optical depth (AOD) over northern and southern walls of Valles Marineris. On northern...
104 KB (8,945 words) - 07:49, 27 May 2024
In optics, optical path length (OPL, denoted Λ in equations), also known as optical length or optical distance, is the length that light needs to travel...
4 KB (522 words) - 14:04, 24 May 2024