Astrophysical Applications of Gravitational Microlensing
A special issue of Galaxies (ISSN 2075-4434).
Deadline for manuscript submissions: closed (31 March 2021) | Viewed by 2870
Special Issue Editor
Special Issue Information
Dear Colleagues,
In recent years, gravitational microlensing has been used for the detection of compact astrophysical halo objects. This technique is then applied for the detection of extra-solar planets in the binary systems. The results of this observation were the discovery of tens of exoplanets through the method. The advantage of microlensing compared to conventional methods is that we can detect exoplanets that are as small as the Earth mass planets at a few kilo-parsec distances beyond the snowline of parent stars.
In recent years, microlensing observations have extended to space-based observations using Kepler and Spitzer Telescopes. The space-based telescope accompanying the ground-based telescope could break the degeneracy between the parameters of lensing to identify the mass of lenses. Gravitational microlensing as a natural telescope will enter a new phase of observations in other wavelengths, such as radio-waves, in the observations of self-lensing of binary compact objects for the discovery of the back holes and neutron stars, and in polarimetry observations.
With this Special Issue we aim to summarize where we stand today and our knowledge in different aspects of gravitational microlensing. Some of the key topics that will be covered in this Special issue of Galaxies are:
- Gravitational microlensing and searching MACHOs in the galactic halo;
- Investigating the structure of the Milky Way galaxy with microlensing observation;
- Theory of binary lensing and observations of exoplanets;
- Statistics of exoplanets from the microlensing observations;
- Quasar microlensing;
- Astrophysical applications of microlensing;
- Polarization observations in microlensing;
- Extending microlensing observations to the ratio wavelengths.
Dr. Sohrab Rahvar
Guest Editor
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Keywords
- MACHOs
- exoplanet detection and data analyzing
- statistics of exoplanets
- Quasar microlensing
- astrophysical application of microlensing
- polarimetry of microlensing events
- microlensing in radio wavelengths
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