ABSORPTION CROSS SECTIONS OF LOW ENERGY PHOTONS FOR THE SCHWARZSCHILD AND EXTREME REISSNER-NORDSTRÖM BLACK HOLES IN ARBITRARY DIMENSIONS HIGHER THAN THREE

2006 ◽  
Author(s):  
LUÍS C. B. CRISPINO ◽  
ATSUSHI HIGUCHI ◽  
GEORGE E. A. MATSAS
Keyword(s):  
Black Holes ◽  
Cross Sections ◽  
Low Energy ◽  
Absorption Cross ◽  
Arbitrary Dimensions

scholarly journals Universality of Low Energy Absorption Cross Sections for Black Holes

1997 ◽  
Vol 78 (3) ◽  
pp. 417-419 ◽  
Author(s):  
Sumit R. Das ◽  
Gary Gibbons ◽  
Samir D. Mathur
Keyword(s):  
Black Holes ◽  
Energy Absorption ◽  
Cross Sections ◽  
Low Energy ◽  
Absorption Cross

scholarly journals Boosts, Schwarzschild black holes and absorption cross sections in M-theory

1998 ◽  
Vol 527 (1-2) ◽  
pp. 187-204 ◽  
Author(s):  
Sumit R. Das ◽  
Samir D. Mathur ◽  
S. Kalyana Rama ◽  
P. Ramadevi
Keyword(s):  
Black Holes ◽  
Cross Sections ◽  
Absorption Cross ◽  
M Theory

scholarly journals Universality of high-energy absorption cross sections for black holes

2011 ◽  
Vol 83 (4) ◽  
Author(s):  
Yves Décanini ◽  
Gilles Esposito-Farèse ◽  
Antoine Folacci
Keyword(s):  
Black Holes ◽  
Energy Absorption ◽  
Cross Sections ◽  
High Energy ◽  
Absorption Cross ◽  
High Energy Absorption

scholarly journals Quasinormal modes and absorption cross-sections of Born–Infeld–de Sitter black holes

2017 ◽  
Vol 26 (10) ◽  
pp. 1750112 ◽  
Author(s):  
Nora Bretón ◽  
Tyler Clark ◽  
Sharmanthie Fernando
Keyword(s):  
Black Holes ◽  
Cross Sections ◽  
Quasinormal Modes ◽  
Eikonal Approximation ◽  
Scalar Fields ◽  
Massless Scalar ◽  
Absorption Cross ◽  
De Sitter ◽  
Sinc Approximation ◽  
Null Geodesics

In this paper, we have studied QNM modes and absorption cross-sections of Born–Infeld–de Sitter black holes. WKB approximation is employed to compute the QNM modes of massless scalar fields. We have also used null geodesics to compute quasinormal modes in the eikonal approximation. In the eikonal limit, QNMs of black holes are determined by the parameters of the circular null geodesics. Unstable circular null orbits are derived from the effective metric which is obeyed by light rays under the influence of a nonlinear electromagnetic field. Comparison is shown with the QNM of the linear electromagnetic counterpart, the Reissner–Nordström black hole. Furthermore, the null geodesics are employed to compute the absorption cross-sections in the high frequency limit via the sinc approximation.

Low energy antiproton nuclear absorption cross sections

1985 ◽  
Vol 31 (2) ◽  
pp. 663-665 ◽  
Author(s):  
V. Ashford ◽  
M. E. Sainio ◽  
M. Sakitt ◽  
J. Skelly ◽  
R. Debbe ◽  
...  
Keyword(s):  
Cross Sections ◽  
Low Energy ◽  
Absorption Cross ◽  
Nuclear Absorption
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