scholarly journals Conservation of asymptotic charges from past to future null infinity: Maxwell fields

2018 ◽  
Vol 2018 (10) ◽  
Author(s):  
Kartik Prabhu
Keyword(s):  
Null Infinity ◽  
Maxwell Fields ◽  
Future Null Infinity

scholarly journals On the local extension of the future null infinity

2018 ◽  
Vol 110 (1) ◽  
pp. 73-133 ◽  
Author(s):  
Junbin Li ◽  
Xi-Ping Zhu
Keyword(s):  
Null Infinity ◽  
Local Extension ◽  
The Future ◽  
Future Null Infinity

scholarly journals Peeling property and asymptotic symmetries with a cosmological constant

2020 ◽  
Vol 29 (03) ◽  
pp. 2050020
Author(s):  
Vee-Liem Saw ◽  
Freeman Chee Siong Thun
Keyword(s):  
Order Term ◽  
Radial Coordinate ◽  
Conformally Flat ◽  
De Sitter ◽  
Null Infinity ◽  
Weyl Spinor ◽  
Sitter Spacetime ◽  
Maxwell Fields ◽  
Physical Spacetime ◽  
Asymptotic Symmetries

This paper establishes two things in an asymptotically (anti-)de Sitter spacetime, by direct computations in the physical spacetime (i.e. with no involvement of spacetime compactification): (1) The peeling property of the Weyl spinor is guaranteed. In the case where there are Maxwell fields present, the peeling properties of both Weyl and Maxwell spinors similarly hold, if the leading order term of the spin coefficient [Formula: see text] when expanded as inverse powers of [Formula: see text] (where [Formula: see text] is the usual spherical radial coordinate, and [Formula: see text] is null infinity, [Formula: see text]) has coefficient [Formula: see text]. (2) In the absence of gravitational radiation (a conformally flat [Formula: see text]), the group of asymptotic symmetries is trivial, with no room for supertranslations.

scholarly journals Taub numbers at future null infinity: III. The Bondi mass

1997 ◽  
Vol 14 (7) ◽  
pp. 1899-1909 ◽  
Author(s):  
E N Glass ◽  
M G Naber
Keyword(s):  
Null Infinity ◽  
Bondi Mass ◽  
Future Null Infinity

scholarly journals Black-hole boundaries

2005 ◽  
Vol 83 (11) ◽  
pp. 1073-1099 ◽  
Author(s):  
Ivan Booth
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Recent Work ◽  
Numerical Relativity ◽  
Null Infinity ◽  
Event Horizons ◽  
Traditional Definition ◽  
Classical Black Holes ◽  
Definition Of ◽  
Future Null Infinity

Classical black holes and event horizons are highly nonlocal objects, defined in relation to the causal past of future null infinity. Alternative, quasilocal characterizations of black holes are often used in mathematical, quantum, and numerical relativity. These include apparent, Killing, trapping, isolated, dynamical, and slowly evolving horizons. All of these are closely associated with two-surfaces of zero outward null expansion. This paper reviews the traditional definition of black holes and provides an overview of some of the more recent work on alternative horizons.PACS Nos.: 04.20.Cv, 04.70.–s, 04.70.Bw

Future null infinity of Robertson–Walker space‐times

1990 ◽  
Vol 31 (5) ◽  
pp. 1208-1216 ◽  
Author(s):  
Osvaldo M. Moreschi
Keyword(s):  
Null Infinity ◽  
Future Null Infinity

scholarly journals Linking past and future null infinity in three dimensions

2017 ◽  
Vol 95 (8) ◽  
Author(s):  
Stefan Prohazka ◽  
Jakob Salzer ◽  
Friedrich Schöller
Keyword(s):  
Three Dimensions ◽  
Null Infinity ◽  
Future Null Infinity

scholarly journals A Vaidya-type generalization of Kerr spacetime

2017 ◽  
Vol 32 (35) ◽  
pp. 1750189
Author(s):  
C. G. Böhmer ◽  
P. A. Hogan
Keyword(s):  
Angular Momentum ◽  
Unit Mass ◽  
Matter Distribution ◽  
Schwarzschild Spacetime ◽  
Null Infinity ◽  
Kerr Spacetime ◽  
Special Case ◽  
Future Null Infinity

A new Vaidya-type generalization of Kerr spacetime is constructed by requiring the Kerr mass and angular momentum per unit mass to depend upon a variable which has a simple geometrical origin. The matter distribution introduced in this way radiates mass and angular momentum at future null infinity. The Vaidya generalization of the Schwarzschild spacetime is a special case of the newly found solution.

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