I GW detectors -- How much has their sensitivity improved since 2008?

  • I
  • Thread starter Thread starter MathematicalPhysicist
  • Start date Start date
  • Tags Tags
    Detectors Sensitivity
MathematicalPhysicist
Science Advisor
Gold Member
Messages
4,662
Reaction score
372
According to Schutz's second edition of "A First Course in GR" on page 318:
The simplicity of the black hole model has made it possible to identify systems containing black holes based only on indirect evidence, on their effects on nearby gas and stars. Until gravitational wave detectors become sufficiently sensitive to detect radiation from black holes, this will be the only way to find them.
So to my question.
The book was written in 2008, since then have the GW detectors become sufficiently sensitive to detect radiation from black holes?
What has changed since 2008?

Thanks!
 
Physics news on Phys.org
This Wikipedia page has a nice list of GW detection events:

https://en.wikipedia.org/wiki/List_of_gravitational_wave_observations

1631196030266.png
 
Reply
  • Like
Likes vanhees71 and MathematicalPhysicist

Thread 'Describing the Big Bang'

I started reading a National Geographic article related to the Big Bang. It starts these statements: Gazing up at the stars at night, it’s easy to imagine that space goes on forever. But cosmologists know that the universe actually has limits. First, their best models indicate that space and time had a beginning, a subatomic point called a singularity. This point of intense heat and density rapidly ballooned outward. My first reaction was that this is a layman's approximation to...
View full post »

Thread 'Parallel transport'

In this video I can see a person walking around lines of curvature on a sphere with an arrow strapped to his waist. His task is to keep the arrow pointed in the same direction How does he do this ? Does he use a reference point like the stars? (that only move very slowly) If that is how he keeps the arrow pointing in the same direction, is that equivalent to saying that he orients the arrow wrt the 3d space that the sphere is embedded in? So ,although one refers to intrinsic curvature...
View full post »
Thread 'Dirac's integral for the energy-momentum of the gravitational field'

Thread 'Dirac's integral for the energy-momentum of the gravitational field'

See Dirac's brief treatment of the energy-momentum pseudo-tensor in the attached picture. Dirac is presumably integrating eq. (31.2) over the 4D "hypercylinder" defined by ##T_1 \le x^0 \le T_2## and ##\mathbf{|x|} \le R##, where ##R## is sufficiently large to include all the matter-energy fields in the system. Then \begin{align} 0 &= \int_V \left[ ({t_\mu}^\nu + T_\mu^\nu)\sqrt{-g}\, \right]_{,\nu} d^4 x = \int_{\partial V} ({t_\mu}^\nu + T_\mu^\nu)\sqrt{-g} \, dS_\nu \nonumber\\ &= \left(...
View full post »

Similar threads

I Unruh Radiation and Black Holes
Replies
10
Views
2K
B Radiation detector types/physics
Replies
24
Views
3K
I Valentine Monopole & Detector Constructions
Replies
2
Views
1K
I Why can't the interior of a black hole be empty?
Replies
10
Views
2K
Detecting matter falling into a Black Hole
2
Replies
85
Views
8K
I What is the temperature dependence of the NIRCam sensor's responsivity?
2
Replies
70
Views
6K
I Two recent tests of loop quantum gravity theory
Replies
15
Views
5K
I Modeling the effects of GW and the "Earth Frame"
2
Replies
66
Views
6K
Is This Description of Falling Into a Black Hole Correct?
Replies
1
Views
2K
B Infrared Detectors & The 2nd Law of Thermodynamics
4
Replies
152
Views
9K

Hot Threads

Recent Insights

Back
Top