Question

how are the source parameters (mass,distance,etc)determined from the data of GW150914 from a binary black hole merger?​

Answer 1

Answer: ra 312

Explanation:

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Answer 2

Data evaluation of GW150914 from Binary black hole merger

Answer:

Source parameters are determined by analyzing the signals arrived from the GW150914 of the binary black hole.

Explanation:

GW150914's gravitational wave signal originated from two dense objects spiraling and merging into one another. How massive the two objects are, how rapidly each object spins, where they are positioned, and how they are oriented towards us are the parameters that characterize such an occurrence. We can calculate various aspects of the true source by seeing which combinations of these parameters generate gravitational waves that fit the results.

• From parameter estimation we now know that GW150914 came to us from the merger of two stellar mass black holes.
• The black holes that merged were each around 30 times the mass of the Sun, making them the largest stellar mass black holes ever observed.
• Stellar mass black holes form when a large star collapses in on itself, possibly triggering a supernova explosion. There are black holes millions of times more massive than the black holes which created GW150914 at the centers of galaxies, but they are not expected to be sources for aLIGO.
• The merging black holes we detected were likely located somewhere over the southern hemisphere of the Earth, and were measured to be about 1 billion light years away.
• Black hole mergers are incredibly violent events. Had all of the energy released by the merger come in the form of visible light, it would have briefly outshone the full moon despite being a billion light years away.