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Gravitational Capture of Asteroids by Gas Drag
المؤلفون المشاركون
Winter, Othon Cabo
Vieira Neto, Ernesto
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2009، العدد 2009 (31 ديسمبر/كانون الأول 2009)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2010-03-07
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
Several irregular satellites of the giant planets were found in the last years.
Their orbital configuration suggests that these satellites were asteroids captured by the planets.
The restricted three-body problem can explain the dynamics of the capture, but the capture is temporary.
It is necessary some kind of dissipative effect to turn the temporary capture into a permanent one.
In this work we study an asteroid suffering a gas drag at an extended atmosphere of a planet to turn a temporary capture into a permanent one.
In the primordial Solar System, gas envelopes were created around the planet.
An asteroid that was gravitationally captured by the planet got its velocity reduced and could been trapped as an irregular satellite.
It is well known that, depending on the time scale of the gas envelope, an asteroid will spiral and collide with the planet.
So, we simulate the passage of the asteroid in the gas envelope with its density decreasing along the time.
Using this approach, we found effective captures, and have a better understanding of the whole process.
Finally, we conclude that the origin of the irregular satellites cannot be attributed to the gas drag capture mechanism alone.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Vieira Neto, Ernesto& Winter, Othon Cabo. 2010. Gravitational Capture of Asteroids by Gas Drag. Mathematical Problems in Engineering،Vol. 2009, no. 2009, pp.1-11.
https://search.emarefa.net/detail/BIM-506396
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Vieira Neto, Ernesto& Winter, Othon Cabo. Gravitational Capture of Asteroids by Gas Drag. Mathematical Problems in Engineering No. 2009 (2009), pp.1-11.
https://search.emarefa.net/detail/BIM-506396
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Vieira Neto, Ernesto& Winter, Othon Cabo. Gravitational Capture of Asteroids by Gas Drag. Mathematical Problems in Engineering. 2010. Vol. 2009, no. 2009, pp.1-11.
https://search.emarefa.net/detail/BIM-506396
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-506396
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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