I am looking into the effects of gravitational lensing of gravitational waves. I know that gravitons travel along null geodesics, just as photons, and so they will suffer the same deflection angle by a massive close to their paths
I think I know what microlensing is, with the impact parameter, Einstein angle, and amplification factor. However, I have read that weak lensing is likely to be a problem for advanced gravitational wave detectors.
Is weak lensing just the statistical, overall effect of many different microlensing events, or is it something else?
Weak Lensing, Strong Lensing and Microlensing are all forms of gravitational lensing---in which observed images of a distant object are affected by the gravitational field of an intervening, more nearby object.
Strong Lensing: Is when the lensing is pronounced enough that multiple images, or an Einstein ring is apparent.
Weak Lensing: is when the image shape or position is noticeably altered, but there is still only one image (often in practice this means that the lensed image can be considered as a perturbation to the un-lensed image).
Microlensing: is when only the magnitude of light is altered (i.e. it is a photometric, instead of an astrometric effect).
Strong Lensing----In this case, a single galaxy has been distorted into an almost complete Einstein ring.
stuff
Weak Lensing---In this simulated example, the shape of many objects is noticeably altered by the foreground (not shown) mass distribution.
Microlensing---This schematic is meant to illustrate that only the apparent brightness of the object is effected, while its apparent position and shape (in general such an object would be unresolved) remain the same.
Weak Lensing, Strong Lensing and Microlensing are all forms of gravitational lensing---in which observed images of a distant object are affected by the gravitational field of an intervening, more nearby object. Strong Lensing: Is when the lensing is pronounced enough that multiple images, or an Einstein ring is apparent. Weak Lensing: is when the image shape or position is noticeably altered, but there is still only one image (often in practice this means that the lensed image can be considered as a perturbation to the un-lensed image). Microlensing: is when only the magnitude of light is altered (i.e. it is a photometric, instead of an astrometric effect). |
I am looking into the effects of gravitational lensing of gravitational waves. I know that gravitons...
I already know the answers to #8 and #9, I'm just looking for
the last part. I put 8 and 9 there for reference - thanks!
4.02 pt Two slits separated by a distance of d - 0.14 mm are screen is oriented parallel to the plane of the slits. The slits are illuminated by a coherent light source with a wavelength of ? = 550 nm. A wave from each slit propagates to the screen. The interference pattern shows...
i really need help with the graphs
Driving Can Be Dangerous to Your Health: An Interrupted Case Study in Physiology Phil Stephens Department of Biology Villanova University Part 1-The Grandparents Arrive Dave pulled the cell phone out of his pocket, cursing himself for not putting it on vibrate. The children, Jason and Laura, were both asleep, and he knew that the rest of the day would not be fun if they were awakened from their naps. "Hi, Dave. We're just...
could you please help me with this problem, also I
need a little text so I can understand how you solved the
problem?
import java.io.File; import java.util.Scanner; /** *
This program lists the files in a directory specified by * the
user. The user is asked to type in a directory name. * If the name
entered by the user is not a directory, a * message is printed and
the program ends. */ public class DirectoryList { public static...
10. The Beck & Watson article is a
Group of answer choices
quantitative study
qualitative study
11. Beck & Watson examined participants' experiences and
perceptions using what type of research design?
Group of answer choices
particpant obersvation
phenomenology
12. Select the participants in the Beck & Watson study
Group of answer choices
Caucasian women with 2-4 children
Caucasian pregnant women
13. In the Beck & Watson study, data was collected via
a(n)
Group of answer choices
internet study
focus group...
14. Select the number of participants in the Beck & Watson
study
Group of answer choices
8
13
22
35
15. Beck & Watson determined their final sample size via
Group of answer choices
coding
saturation
triangulation
ethnography
16.Through their study, Beck & Watson determined
Group of answer choices
after a traumatic birth, subsequent births have no troubling
effects
after a traumatic birth, subsequent births brought fear, terror,
anxiety, and dread
Subsequent Childbirth After a Previous Traumatic Birth Beck, Cheryl...