Astrometric Microlensing Events Predicted from Gaia eDR3

From the Gaia eDR3 catalogue we predict astrometric microlensing events by foreground stars with high proper motion (μ > 100 mas/yr) passing a background source in the next decades. Using Gaia DR3 photometry we determine an approximate mass of the lens, which we use to calculate the expected microlensing effects. This yields 4842 microlensing events by 3791 different lenses between 2010 and 2066 with expected shifts larger than 0.1 mas between the lensed and unlensed positions of the source. The past events might be interested when analyzing the individual Gaia measurements). 685 of those are expected to happen within the next decade (2021-2031). For 140 events we also expect a magnification between 1 mmag and 0.6 mag.
Coordinates (as h m s, d m s or decimal degrees), or SIMBAD-resolvable object
Search radius in arcminutes
[?num. expr.]
Mean magnitude of the lens in the integrated G band from Gaia eDR3.
[?num. expr.]
Mean magnitude of the lensed object in the integrated G band from Gaia eDR3.
[?num. expr.]
Estimated time of the closest approach.
[?num. expr.]
Estimated distance at closest approach.
[?num. expr.]
Maximal astrometric shift of brighter image.
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This work has made use of data from the European Space Agency (ESA) mission Gaia, processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.