2005MNRAS.356.1409A

Query : 2005MNRAS.356.1409A

2005MNRAS.356.1409A - Mon. Not. R. Astron. Soc., 356, 1409-1428 (2005/February-1)

Gravitational lens under perturbations: symmetry of perturbing potentials with invariant caustics.

AN J.H.

Abstract (from CDS):

When the gravitational lensing potential can be approximated by that of a circularly symmetric system affected by weak perturbations, it is found that the shape of the resulting (tangential) caustics is entirely specified by the local azimuthal behaviour of the affecting perturbations. This provides a common mathematical groundwork for understanding problems such as the close-wide (d↔/d) separation degeneracy of binary lens microlensing light curves and the shear-ellipticity degeneracy of quadruple image lens modelling.

Abstract Copyright: 2004 RAS

Journal keyword(s): gravitational lensing - methods: analytical

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 MACHO 99-BLG-47 * ~ ~           ~ 11 0

Query : 2005MNRAS.356.1409A

Basic data :
MACHO 99-BLG-47 -- Star
Other object types: otypes_help 		* (), Lev (MACHO)
ICRS coord. (ep=J2000) : 		No Coord.

Identifiers (1) :
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MACHO 99-BLG-47

References (11 between 1850 and 2026) (Total 11)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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MACHO 99-BLG-47

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