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اخترفیزیک و علوم فضایی 2012
جزئیات رویداد
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همایش ، رویداد ، ژورنال
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  • basic thermodynamic parameters of a black hole resulting from a yukawa type of correction to the metric

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 943
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    • شماره تماس دبیرخانه رویداد: -
     there has been a renewed interest in the recent years in the possibility of deviations from the predictions of newton’s “inverse-square law” of universal gravitation. one of the reasons for renewing this interest lies in various theoretical attempts to construct a unified elementary particle theory, in which there is a natural prediction of new forces over macroscopic distances. therefore the existence of such a force would only coexist with gravity, and in principle could only be detected as a deviation from the inverse square law, or in the “universality of free fall” experiments. new experimental techniques such that of sagnac interferometry can help explore the range of the yukawa correction λ≥1014 m where such forces might be present. it may be, that future space missions might be operating in this range which has been unexplored for very long time. in this paper we derive the basic thermodynamic parameters of such a yukawa stationary spherically symmetric black hole. first, the expression for the event horizon of such a black hole is derived, with the help of which the temperature, entropy and heat capacity of this particular black hole are obtained. we have also obtained analytical expressions for the change of mass of such black hole, and also its corresponding evaporation time.

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