Volume 80, Number 2, October 2007
|Number of page(s)||3|
|Published online||21 September 2007|
Comments on thermal aspects of the Bonnor-type black dihole in the Brans-Dicke paradigm
Department of Physics, Rikkyo University - Tokyo 171-8501, Japan
Accepted: 31 August 2007
Thermal aspects of the Brans-Dicke analog of the Bonnor-type black dihole are commentarially described on the basis of a magnetic-dipole solution of Kim and Lee in the Brans-Dicke-Maxwell theory. It is then exemplified that the so-called area theorem of the horizon is broken and the entropy is divergent, irrespective of the finite area of the horizon.
PACS: 04.50.+h – Gravity in more than four dimensions, Kaluza-Klein theory, unified field theories; alternative theories of gravity / 04.60.-m – Quantum gravity / 04.70.Dy – Quantum aspects of black holes, evaporation, thermodynamics
© Europhysics Letters Association, 2007
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