Timeline for SXS gravitational wave data question
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Dec 10, 2019 at 8:01 | comment | added | JohnDoe122 | Thank you again! Is there a formula for the amplitude of the gravitational wave (in the classical-ish regime i.e. the first few periods in the SXS data) that takes the spin into account? | |
| Dec 10, 2019 at 7:57 | vote | accept | JohnDoe122 | ||
| Dec 9, 2019 at 15:20 | comment | added | TimRias | @BillKet Both eccentricity and spin precession can have that effect. Since only a handful of simulations in the SXS catalog have significant eccentricity, spin precession is the most likely culprit. | |
| Dec 9, 2019 at 12:05 | comment | added | ProfRob | @BillKet Eccentricity can do this. See the examples in the reference I've cited. | |
| Dec 9, 2019 at 8:12 | comment | added | JohnDoe122 | Thank you for this! So I kinda figured out this issues with frequency, but since you seem to know a lot about this, I have one more question. For some waveforms, the amplitude is not smoothly increasing, but after each period the amplitude is going up and down between 2 values (on top of the overall increase). Is this possible (maybe due to spin?) or am I just extracting the data in a wrong way. Again thanks a lot for the help! | |
| Dec 8, 2019 at 11:08 | history | edited | ProfRob | CC BY-SA 4.0 |
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| Dec 8, 2019 at 9:59 | comment | added | ProfRob | @BillKet I still don't know what you mean The website gives a library of waveforms for many different binaries. Good point about eccentricity. See edit. | |
| Dec 8, 2019 at 9:58 | history | edited | ProfRob | CC BY-SA 4.0 |
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| Dec 7, 2019 at 23:52 | comment | added | JohnDoe122 | One more question, does the fact that the gravitational wave frequency is twice the orbital one, always hold (in the Newtonian limit)? Or does it have a dependence on eccentricity? | |
| Dec 7, 2019 at 23:15 | comment | added | JohnDoe122 | Thank you for your reply! I guess my confusion is on how do they choose the initial parameters, mainly the location of the black holes. | |
| Dec 7, 2019 at 9:38 | history | answered | ProfRob | CC BY-SA 4.0 |