Chromaticity effects in microlensing by wormholes

被引：37

作者：

Eiroa, E

Romero, GE

Torres, DF

机构：

[1] Inst Astron & Fis Espacio, RA-1428 Buenos Aires, DF, Argentina

[2] Inst Argentino Radioastron, RA-1894 Buenos Aires, DF, Argentina

来源：

MODERN PHYSICS LETTERS A | 2001年 / 16卷 / 15期

关键词：

D O I：

10.1142/S021773230100398X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Chromaticity effects introduced by the finite source size in microlensing events by presumed natural wormholes are studied. It is shown that these effects provide a specific signature that allow to discriminate between ordinary and negative mass lenses through the spectral analysis of the microlensing events. Both galactic and extragalactic situations are discussed.

引用

收藏

页码：973 / 983

页数：11

相关论文

共 19 条

[1] Brans-Dicke wormholes in nonvacuum spacetime [J].

Anchordoqui, LA ;

Bergliaffa, SP ;

Torres, DF .

PHYSICAL REVIEW D, 1997, 55 (08) :5226-5229

[2] In search for natural wormholes [J].

Anchordoqui, LA ;

Torres, DF ;

Romero, GE ;

Andruchow, I .

MODERN PHYSICS LETTERS A, 1999, 14 (12) :791-797

[3] Traversable wormholes from massless conformally coupled scaler fields [J].

Barceló, C ;

Visser, M .

PHYSICS LETTERS B, 1999, 466 (2-4) :127-134

[4] IMPLICATIONS OF GAMMA-RAY TRANSPARENCY CONSTRAINTS IN BLAZARS - MINIMUM DISTANCES AND GAMMA-RAY COLLIMATION [J].

BECKER, PA ;

KAFATOS, M .

ASTROPHYSICAL JOURNAL, 1995, 453 (01) :83-94

[5] NATURAL WORMHOLES AS GRAVITATIONAL LENSES [J].

CRAMER, JG ;

FORWARD, RL ;

MORRIS, MS ;

VISSER, M ;

BENFORD, G ;

LANDIS, GA .

PHYSICAL REVIEW D, 1995, 51 (06) :3117-3120

[6] Does back reaction enforce the averaged null energy condition in semiclassical gravity? [J].

Flanagan, EE ;

Wald, RM .

PHYSICAL REVIEW D, 1996, 54 (10) :6233-6283

[7] Chromaticity of gravitational microlensing events [J].

Han, C ;

Park, SH ;

Jeong, JH .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 316 (01) :97-102

[8] Null energy condition in dynamic wormholes [J].

Hochberg, D ;

Visser, M .

PHYSICAL REVIEW LETTERS, 1998, 81 (04) :746-749

[9] Dynamic wormholes, antitrapped surfaces, and energy conditions [J].

Hochberg, D ;

Visser, M .

PHYSICAL REVIEW D, 1998, 58 (04)

[10] Geometric structure of the generic static traversable wormhole throat [J].

Hochberg, D ;

Visser, M .

PHYSICAL REVIEW D, 1997, 56 (08) :4745-4755