Recent content by Meerio

  1. Meerio

    B Question about Hertzsprung-Russell-diagram

    wow that was easy thanks!
  2. Meerio

    B Question about Hertzsprung-Russell-diagram

    Why can you read out the radii of the stars by knowing their temperature and luminosity? Can't make sense out of it.
  3. Meerio

    I Gravitational Wave: Energy & Amplitude Changes

    Yes, I agree about the energy question, but I talked to a PHD student about the subject, by amplitude I mean the amount space is stretched/squeezed relative to itself, I have also read in the link you've sent me it consists of 2 components with an angle of 45 deg relative to each other. But what...
  4. Meerio

    I Gravitational Wave: Energy & Amplitude Changes

    I honestly cannot filter the answer out of that paper, my physics skills aren't good enough for that yet. I talked to someone about it but he said the amplitude didn't change. Also I read somewhere that energy is conserved until (part of) the gravitational wave is absorbed. The second part is...
  5. Meerio

    I Gravitational Wave: Energy & Amplitude Changes

    I was wondering how the energy and amplitude change over a distance
  6. Meerio

    I What does Pt mean in this formula?

    So I'm trying to understand something about the Hulse Taylor Binary. Here they talk about the change in periode that actually changes with the period. So what does Pt mean here? And what is actually being explained? P1year also makes no sense to me. Is that the period after one year? And what...
  7. Meerio

    I By what formula is this graph predicted? Cumulative Periastron Time Shift

    Thx so much this was the answer I was looking for !
  8. Meerio

    I By what formula is this graph predicted? Cumulative Periastron Time Shift

    I'm confused about how the predictions of this graph were formed. I have this formula: But the change in frequency per second is about : 2x 10^-12 which has a problem because when you multiply this by 10 years you don't even get a change of frequency of 1/1000 of a second and in the graph it...
  9. Meerio

    I Frequency of GW Arm Length Change: Properties & Detailed Explanation

    Yeah could you please move the thread up a level? Thx
  10. Meerio

    I Frequency of GW Arm Length Change: Properties & Detailed Explanation

    What properties have to do with the frequency at which the lengths change of the arm? Also does anybody have a body paper or webpage which explains the properties at a detailed level?
  11. Meerio

    B In what direction do gravitational waves get emitted?

    https://www.ligo.caltech.edu/video/gravitational-waves How do gravitational waves get emitted here? Is it in a sphere or on a flat(?) surface?
  12. Meerio

    B Need an explanation for the chances in this graph

    In the paper Advanced LIGO they published some figures with chances. I would like to know how they know that there's a 90% chance for something to be in a specific value. https://dcc.ligo.org/public/0122/P1500218/014/PhysRevLett.116.241102.pdf paper here also have some other questions: What...
  13. Meerio

    I Need help with some calculations with gravitational waves

    Thank you very much if anyone knows whether this is true or not please confirm!
  14. Meerio

    I Need help with some calculations with gravitational waves

    I have some questions about the first discovery paper that was released about gravitational waves, especially some of the maths. How did they: 1. Calculate the masses of the black holes that merged 2. Calculate the energy radiated away in gravitational waves 3. Calculate how far away the event...
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