If the protoplanetary disk pictured here has a diameter of 730 AU, what is its t
ID: 3278272 • Letter: I
Question
If the protoplanetary disk pictured here has a diameter of 730 AU, what is its thickness? Use the image to estimate the thickness. As time passes, protoplanetary disks like this one stay the same thickness. become less thick become more thick. This disk of gas and dust in the Orion Nebula is oriented so that we see it edge-on. For more information about this image, go to Resources: Help With This Topic. (Mark McCaughrean-Max- Planck-Institute for Astronomy, C. Robert O'Dell-Rice University, and NASA/ESA)Explanation / Answer
from the image we can see
ratio of lengtrh of the figure to the breadth of the figure = 5.5:1
hence, given diameter of the proplanetary disc, d = 730 AU
let thisckness of the proplanetary disc be t
then d/t = 5.5
730/t = 5.5
t = 132.72 AU
now, as tthe ratio os greater than one
proplanetary discs like this tend to increase in diamerer due to angular velocuty with timehenc e
the answer is
-> become less thick