Stellar surf's up: Monster waves as tall as three suns are crashing upon a colossal star NatureAstronomy
Massive astrophysical compact halo object 80.7443.1718 is a high mass, eccentric binary system exhibiting the largest-known-amplitude tidally excited oscillations. The system’s ±20% photometric amplitude, along with the high mass of the primary star, ~35, make this the most extreme of the class of periodically perturbed ‘heartbeat stars.
’ Here, we use a hydrodynamic simulation to demonstrate that with each periapse passage, an unseen companion star raises tidal waves so large that they break, shock-heating and dissipating energy and angular momentum on the surface of the star. The shock-heated material forms a rapidly rotating circumstellar atmosphere, which is stripped and reassembled with each periapse passage.
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