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Exoplanet Searches in the Habitable Zone with Gravitational Microlensing

Published online by Cambridge University Press:  29 April 2014

Alexander F. Zakharov ,
Gabriele Ingrosso ,
Francesco De Paolis ,
Achille A. Nucita ,
Francesco Strafella ,
Sebastiano Calchi Novati  and
Philippe Jetzer
Alexander F. Zakharov*
Affiliation:
Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia
Gabriele Ingrosso
Affiliation:
Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, CP 193, I-73100 Lecce, Italy INFN Sezione di Lecce, CP 193, I-73100 Lecce, Italy
Francesco De Paolis
Affiliation:
Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, CP 193, I-73100 Lecce, Italy INFN Sezione di Lecce, CP 193, I-73100 Lecce, Italy
Achille A. Nucita
Affiliation:
Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, CP 193, I-73100 Lecce, Italy INFN Sezione di Lecce, CP 193, I-73100 Lecce, Italy
Francesco Strafella
Affiliation:
Dipartimento di Matematica e Fisica “Ennio De Giorgi”, Università del Salento, CP 193, I-73100 Lecce, Italy
Sebastiano Calchi Novati
Affiliation:
Dipartimento di Fisica “E.R. Caianiello”, Università di Salerno, I-84081 Baronissi (SA), Italy Istituto Internazionale per gli Alti Studi Scientifici (IIASS), Vietri Sul Mare (SA), Italy
Philippe Jetzer
Affiliation:
Institute for Theoretical Physics, University of Zürich, CH-8057, Zürich, Switzerland
*
†E-mail: [email protected]
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Abstract

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There are different methods for finding exoplanets such as radial spectral shifts, astrometrical measurements, transits, timing, etc. Gravitational microlensing (including pixel-lensing) is among the most promising techniques with the potential of detecting Earth-like planets at distances about a few astronomical units from their host stars. Here we emphasize the importance of polarization measurements which can help to resolve degeneracies in theoretical models. In particular, the polarization angle could give additional information about the relative position of the lens with respect to the source.

Keywords

Gravitational lensingMicrolensingExtrasolar planets
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S293: Formation, Detection, and Characterization of Extrasolar Habitable Planets , August 2012 , pp. 36 - 38
Copyright
Copyright © International Astronomical Union 2014 

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