On the detection of free-floating planets through microlensing towards the Magellanic Clouds

@article{Sajadian2021OnTD,
  title={On the detection of free-floating planets through microlensing towards the Magellanic Clouds},
  author={Sedighe Sajadian},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2021}
}
  • S. Sajadian
  • Published 7 July 2021
  • Physics
  • Monthly Notices of the Royal Astronomical Society
In this work, we study detecting free-floating planets (FFPs) by microlensing observations towards the Magellanic Clouds (MCs). In comparison to similar events towards the Galactic bulge, an FFP in the Galactic halo produces on average longer microlensing events with smaller projected source radii towards these clouds. For these microlensing events, the relative lens-source velocities are on average smaller. The MC self-lensing events due to FFPs suffer from severe finite-source effects. We… Expand
Identifying low-amplitude pulsating stars through microlensing observations
One possibility for detecting low-amplitude pulsational variations is through gravitational microlensing. During a microlensing event, the temporary brightness increase leads to improvement in theExpand

References

SHOWING 1-10 OF 100 REFERENCES
Estimating Finite Source Effects in Microlensing Events due to Free-Floating Planets with the Euclid Survey
In recent years free-floating planets (FFPs) have drawn a great interest among astrophysicists. Gravitational microlensing is a unique and exclusive method for their investigation which may allowExpand
The microlensing rate and distribution of free-floating planets towards the Galactic bulge
Ground-based optical microlensing surveys have provided tantalising, if inconclusive, evidence for a significant population of free-floating planets (FFPs). Both ground and space-based facilities areExpand
The MACHO Project: Microlensing Results from 5.7 Years of Large Magellanic Cloud Observations
We report on our search for microlensing toward the Large Magellanic Cloud (LMC). Analysis of 5.7 yr of photometry on 11.9 million stars in the LMC reveals 13-17 microlensing events. A detailedExpand
Microlensing in the Small Magellanic Cloud: lessons from an N-body simulation
We analyse an N-body simulation of the Small Magellanic Cloud (SMC), that of Gardiner & Noguchi (1996) to determine its microlensing statistics. We find that the optical depth due to self-lensing inExpand
Predictions for the Detection and Characterization of Galactic Disk Microlensing Events by LSST
Upcoming LSST survey gives an unprecedented opportunity for studying populations of intrinsically faint objects using microlensing technique. Large field of view and aperture allow effectiveExpand
The MACHO Project Large Magellanic Cloud Microlensing Results from the First Two Years and the Nature of the Galactic Dark Halo
The MACHO Project is a search for dark matter in the form of massive compact halo objects (MACHOs). Photometric monitoring of millions of stars in the Large Magellanic Cloud (LMC), Small MagellanicExpand
Two new free-floating or wide-orbit planets from microlensing
Planet formation theories predict the existence of free-floating planets that have been ejected from their parent systems. Although they emit little or no light, they can be detected duringExpand
On the Feasibility of Characterizing Free-floating Planets with Current and Future Space-based Microlensing Surveys
Simultaneous space- and ground-based microlensing surveys, such as K2's Campaign 9 (K2C9) and $WFIRST$, facilitate measuring the masses and distances of free-floating planet (FFP) candidates. FFPsExpand
Gravitational Microlensing: A Tool for Detecting and Characterizing Free-Floating Planets
Various methods have been proposed to search for extrasolar planets. Compared to the other methods, microlensing has unique applicabilities to the detections of Earth-mass and free-floating planets.Expand
Astrophysical applications of gravitational microlensing
Since the first discovery of microlensing events nearly two decades ago,gravitational microlensing has accumulated tens of TBytes of data and developed into a powerful astrophysical technique withExpand
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