Critical curves and caustics of triple-lens models

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10321581" target="_blank" >RIV/00216208:11320/15:10321581 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0004-637X/806/1/99" target="_blank" >http://dx.doi.org/10.1088/0004-637X/806/1/99</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-637X/806/1/99" target="_blank" >10.1088/0004-637X/806/1/99</a>

Result language

angličtina

Original language name

Critical curves and caustics of triple-lens models

Original language description

Among the 25 planetary systems detected up to now by gravitational microlensing, there are two cases of a star with two planets, and two cases of a binary star with a planet. Other, yet undetected types of triple lenses include triple stars or stars witha planet with a moon. The analysis and interpretation of such events is hindered by the lack of understanding of essential characteristics of triple lenses, such as their critical curves and caustics. We present here analytical and numerical methods formapping the critical-curve topology and caustic cusp number in the parameter space of n-point-mass lenses. We apply the methods to the analysis of four symmetric triple-lens models, and obtain altogether 9 different critical-curve topologies and 32 caustic structures. While these results include various generic types, they represent just a subset of all possible triple-lens critical curves and caustics. Using the analyzed models, we demonstrate interesting features of triple lenses that

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BE - Theoretical physics

OECD FORD branch

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Project

<a href="/en/project/GAP209%2F10%2F1318" target="_blank" >GAP209/10/1318: Gravitational microlensing caustics and extended sources</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

—

Volume of the periodical

806

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

28

Pages from-to

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UT code for WoS article

000356810300099

EID of the result in the Scopus database

2-s2.0-84934907051