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A tidal disruption (ערעור כבידתי) event (or TDE for short) occurs when a star passes near a super-massive (סופר-מסיבי) black hole and is torn apart (hitpa'el verb w/ ק) due to the gravity of the black hole, i.e. its tidal (noun no כ-ב-ד) forces. Two articles published in the journal Nature Astronomy (English) shed light on the internal structure of rare events of this kind that were observed a few years ago 700 million light-years away.

(2 words, 1st isn't כוח)

User Hui
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Final answer:

Tidal disruption events occur when a star is torn apart by a supermassive black hole's tidal forces, leading to the creation of an accretion disk and the emission of X-rays. These rare events help scientists study black holes' gravitational effects.

Step-by-step explanation:

A tidal disruption event (TDE) involves a star getting close enough to a supermassive black hole that it is ripped apart by the black hole's tidal forces. These events, sometimes referred to as "cannibal" events, are rather rare, happening once every 100,000 years in a typical galaxy. Despite their rarity, we can detect TDEs because we observe millions of galaxies.

Tidal forces are not limited to Earth and can be found in many astronomical systems, particularly near black holes, where these forces are incredibly intense. When a star approaches a black hole closely enough, the gravitational force differential can exceed the star's cohesive force, pulling it apart. The resulting material may form an accretion disk around the black hole, emitting X-rays and other radiation that astronomers can observe from Earth.

These TDEs offer scientists a unique opportunity to study the powerful gravitational effects of black holes and their influence on their surrounding space, although they do not contribute significantly to the mass accumulation of these black holes.

User Ayal
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