It Takes Two Black Holes to Tango
<p>Just like humans, black holes come in singles and pairs. And when a third black hole joins an existing pair, the three-body dynamics is often chaotic. Again, just as in human relationships.</p>
<p>Most galaxies host a supermassive black hole at their center. This is the case for our Milky-Way galaxy and its nearest neighbor, the Andromeda galaxy. These two galaxies are on a collision course. In a few billion years, before the Sun will die, the two galaxies will merge. In 2008, I wrote with my former postdoc T.J. Cox the first <a href="https://watermark.silverchair.com/mnras0386-0461.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAA2YwggNiBgkqhkiG9w0BBwagggNTMIIDTwIBADCCA0gGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMMMu7U9xPcD2zpXhIAgEQgIIDGb_OmDWmbVN6hCK48BwL863bAT493nGcela7zYOL_r-XZ8EdfR-qmSIDEyJ3hgUVpTfXuq7E90SCcZrccafyh6MlfKgxj5JXuZH-sRRETBQACyLVm8bpDfKRj-RU0O4SxRL3IFQIn02ML3xhufxLqztgJ0KjpE0gtxyqV3mzTu2L5_DiGgs_JTqt5igoCNY9wGF8kLxPhHH37coL7Czec1H0p27VO5xdNX8FLI5v7THln-MM91O1z5Limb1pXLdKH7EuqClnYVdJt4FdlOSxUvc-9pMjjbtC-NYrtUzzMZe2ZhVSucDDwKc9Fg-jGKWlS0y2tQvym6yS0H4wOqdsFt5JSEwQILvWfUdRwQDmKCyMJD8cG-ZZakbVg0x-I0rX_0Eyw_UR8RF_lZzkNBfujLoISDv15A1aOnmOHwy2mtpz08_W9CVdYoramMT0sw_mWJ-4F3JZX5wkSsBE5SKUOjp1I9f860CPHBHFzKOHzye4NLzHPVS2isNu9qgHlJM4-nuHBjQFXWsCqNqki9iZBhZk2pFUKdE7OJNcL29Z1BbjT8rnDzWe5vS37Ox-v49Drb-eGkCvztjk0XTXEbEv1CwVweuFh_DgQ53Yt6lg5OZ4j7crPz3OQBiZ3538cVSrlYvMATh-Qb9xtTZsWGZMaBg_xOzuE9kKvTwmZ0jVEtF_r0vcJ4XlO4pAmUAou0cRzlNPAnp92gQkkmzFo5R95nAj9cTyntRmtrAobZNVwDBdg1uXoQH4Z-ce3Rom-jdktyhUosKtqlPqvuqWEQZ_AJGfwqwIcqcxi8n65EbxwnJZEVNl3BM6G9rpk0N0W7XL6dJtF7gPVFwz1NpKxQf6dKGtttvsx_jXIjMXZWVHXgI8JadqC9O0lU4cJ7MmXGizJjlSHjq-vtomR5oiPXC0i0naqjq_jNVSAxhHWnpRRXJAbnd_9cVPb0Shr5RbkUw34JhOh652crABZQr84b4jqi_Tj0jJoEs-9AsXE42wb5NHvqcAPJqEKI7f9mPyznkdLHopanbEC45NC6OJ_FToFdBNXtewmMuNBXo" rel="noopener ugc nofollow" target="_blank">paper</a> forecasting this merger to a bigger galaxy which I labeled “Milkomeda”.</p>
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