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

被引：82

作者：

An, JH ^{[1
]}

机构：

[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2005年 / 356卷 / 04期

关键词：

gravitational lensing; methods : analytical;

D O I：

10.1111/j.1365-2966.2004.08581.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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(-1)) separation degeneracy of binary lens microlensing light curves and the shear-ellipticity degeneracy of quadruple image lens modelling.

引用

页码：1409 / 1428

页数：20

共 28 条

[1] Combined analysis of the binary lens caustic-crossing event MACHO 98-SMC-1 [J].

Afonso, C ;

Alard, C ;

Albert, JN ;

Andersen, J ;

Ansari, R ;

Aubourg, E ;

Bareyre, P ;

Bauer, F ;

Beaulieu, JP ;

Bouquet, A ;

Char, S ;

Charlot, X ;

Couchot, F ;

Coutures, C ;

Derue, F ;

Ferlet, R ;

Glicenstein, JF ;

Goldman, B ;

Gould, A ;

Graff, D ;

Gros, M ;

Haissinski, J ;

Hamilton, JC ;

Hardin, D ;

de Kat, J ;

Kim, A ;

Lasserre, T ;

Lesquoy, E ;

Loup, C ;

Magneville, C ;

Marquette, JB ;

Maurice, E ;

Milsztajn, A ;

Moniez, M ;

Palanque-Delabrouille, N ;

Perdereau, O ;

Prévot, L ;

Regnault, N ;

Rich, J ;

Spiro, M ;

Vidal-Madjar, A ;

Vigroux, L ;

Zylberajch, S ;

Alcock, C ;

Allsman, RA ;

Alves, D ;

Axelrod, TS ;

Becker, AC ;

Cook, KH ;

Drake, AJ .

ASTROPHYSICAL JOURNAL, 2000, 532 (01) :340-352

[2]

Ahlfors L, 1979, COMPLEX ANAL

[3] A short, nonplanetary, microlensing anomaly: Observations and light-curve analysis of MACHO 99-BLG-47 [J].

Albrow, MD ;

An, J ;

Beaulieu, JP ;

Caldwell, JAR ;

DePoy, DL ;

Dominik, M ;

Gaudi, BS ;

Gould, A ;

Greenhill, J ;

Hill, K ;

Kane, S ;

Martin, R ;

Menzies, J ;

Pogge, RW ;

Pollard, KR ;

Sackett, PD ;

Sahu, KC ;

Vermaak, P ;

Watson, R ;

Williams, A .

ASTROPHYSICAL JOURNAL, 2002, 572 (02) :1031-1040

[4]

Arfken G. B., 2005, MATH METHODS PHYS

[5] OGLE 2003-BLG-235/MOA 2003-BLG-53: A planetary microlensing event . ,, , , , , , . [J].

Bond, IA ;

Udalski, A ;

Jaroszynski, M ;

Rattenbury, NJ ;

Paczynski, B ;

Soszynski, I ;

Wyrzykowski, L ;

Szymanski, MK ;

Kubiak, M ;

Szewczyk, O ;

Zebrun, K ;

Pietrzynski, G ;

Abe, F ;

Bennett, DP ;

Eguchi, S ;

Furuta, Y ;

Hearnshaw, JB ;

Kamiya, K ;

Kilmartin, PM ;

Kurata, Y ;

Masuda, K ;

Matsubara, Y ;

Muraki, Y ;

Noda, S ;

Okajima, K ;

Sako, T ;

Sekiguchi, T ;

Sullivan, DJ ;

Sumi, T ;

Tristram, PJ ;

Yanagisawa, T ;

Yock, PCM .

ASTROPHYSICAL JOURNAL, 2004, 606 (02) :L155-L158

[6] THEORY OF TRANSPARENT GRAVITATIONAL LENSES [J].

BOURASSA, RR ;

KANTOWSKI, R .

ASTROPHYSICAL JOURNAL, 1975, 195 (01) :13-21

[7]

Bozza V, 1999, ASTRON ASTROPHYS, V348, P311

[8]

Bozza V, 2000, ASTRON ASTROPHYS, V355, P423

[9]

CHANG K, 1984, ASTRON ASTROPHYS, V132, P168

[10] FLUX VARIATIONS OF QSO-0957+561A,B AND IMAGE SPLITTING BY STARS NEAR THE LIGHT PATH [J].

CHANG, K ;

REFSDAL, S .

NATURE, 1979, 282 (5739) :561-564

← 1 2 3 →