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url url url url
  2. Weltenzyklopädie
  3. رمبش گرانشی - ویکی‌پدیا، دانشنامهٔ آزاد
رمبش گرانشی - ویکی‌پدیا، دانشنامهٔ آزاد
از ویکی‌پدیا، دانشنامهٔ آزاد

رمبش گرانشی (به انگلیسی: Gravitational Collapse) به فرو ریختن یک جسم به درون بر اثر گرانش خودش گفته می‌شود. در هر جسم پایداری این نیروی گرانش با فشار داخلی جسم در تعادل است. اگر نیروی گرانش به سمت داخل از برآیند تمام نیروهای به سمت خارج بیشتر شود، این تعادل از بین می‌رود و رمبشی اتفاق می‌افتد تا زمانی که فشار داخلی بیشتر از نیروی گرانشی شود و تعادل دوباره بر قرار شود.[۱][۲]

از آنجایی‌ که معمولاً گرانش نسبت به نیروهای دیگر ضعیف شمرده می‌شود، رمبش گرانشی تنها برای اجسام بسیار پرجرم یا مجموعه‌های پرجرم از اجسام رخ می‌دهد. برای نمونه می‌توان به ستاره‌ها (شامل ستارگان رمبش کرده مانند ابرنواختر، ستاره‌های نوترونی و سیاهچاله‌ها) یا مجموعه‌های بزرگ ستاره‌ها مانند خوشه‌های ستاره‌ای کروی و کهکشان‌ها اشاره نمود.[۳][۴]

منابع

  1. ↑ Pilchin, Lev Eppelbaum, Izzy Kutasov, Arkady (2013). Applied geothermics (Aufl. 2014 ed.). Berlin, Heidelberg: Springer Berlin Heidelberg. p. 2. ISBN 9783642340239.
  2. ↑ Kwok, Sun (2006). Physics and chemistry of the interstellar medium. University Science Books. pp. 435–437. ISBN 1-891389-46-7.
  3. ↑ Prialnik, Dina (2000). An Introduction to the Theory of Stellar Structure and Evolution. Cambridge University Press. pp. 198–199. ISBN 0-521-65937-X.
  4. ↑ Gandolfi, Stefano; Gezerlis, Alexandros; Carlson, J. (2015-10-19). "Neutron Matter from Low to High Density". Annual Review of Nuclear and Particle Science (به انگلیسی). 65 (1): 303–328. arXiv:1501.05675. Bibcode:2015ARNPS..65..303G. doi:10.1146/annurev-nucl-102014-021957. ISSN 0163-8998.
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