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- A tidal shock occurs when a star cluster or other distributed astronomical object passes by a large masssuch as an interstellar cloud, resulting in gravitational perturbation on a time scale that is much less than the mean time for a star to complete an orbit within the cluster. The tidal force from this event can increase the dynamic energy of the cluster, in effect heating it up. This causes the cluster to expand and shed some of the outer stars. Tidal shocks occur, for example, when a globular cluster passes through the galactic plane or near the core of the Milky Way. These events are an important factor during the early evolution of a globular cluster. They work to truncate the outer part of clusters, thereby limiting the impact of future tidal shocks. Streams of stars shed from a globular cluster as a result of tidal shock can form what are termed tidal tails. These are extended streams of stars that lead away from the cluster. Such streams can be used to trace the orbital path of the cluster. (en)
- 潮汐激波發生在星團或其它類型的天體經過大質量的星際雲時，造成的時間尺度遠遠低於集團內的恆星繞行軌道的平均時間尺度。在這種事件中的潮汐力可以增加集團動力學的能量，造成熱增加的效應。這會導致集團的擴大和甩掉一些外層的恆星。 例如，當球狀星團穿過銀河系的平面或接近核心，發生潮汐激波。這些事件是球狀星團早期演化過程中的一個重要因素。這種工作擷取了星團的外圍部分，從而限制了潮汐激波對星團進一步的衝擊。來自球狀星團的星流是由潮汐激波的結果，可以形成所謂的潮汐尾。這些從星團擴展出去的星流，可以用來追蹤星團的軌道路徑。 (zh)
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- 潮汐激波發生在星團或其它類型的天體經過大質量的星際雲時，造成的時間尺度遠遠低於集團內的恆星繞行軌道的平均時間尺度。在這種事件中的潮汐力可以增加集團動力學的能量，造成熱增加的效應。這會導致集團的擴大和甩掉一些外層的恆星。 例如，當球狀星團穿過銀河系的平面或接近核心，發生潮汐激波。這些事件是球狀星團早期演化過程中的一個重要因素。這種工作擷取了星團的外圍部分，從而限制了潮汐激波對星團進一步的衝擊。來自球狀星團的星流是由潮汐激波的結果，可以形成所謂的潮汐尾。這些從星團擴展出去的星流，可以用來追蹤星團的軌道路徑。 (zh)
- A tidal shock occurs when a star cluster or other distributed astronomical object passes by a large masssuch as an interstellar cloud, resulting in gravitational perturbation on a time scale that is much less than the mean time for a star to complete an orbit within the cluster. The tidal force from this event can increase the dynamic energy of the cluster, in effect heating it up. This causes the cluster to expand and shed some of the outer stars. (en)
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- Tidal shock (en)
- 潮汐激波 (zh)
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