SIMBAD references

2021ApJ...908..240S - Astrophys. J., 908, 240-240 (2021/February-3)

OGLE-2007-BLG-224L: a direct test of terrestrial parallax.

SHAN Y., YEE J.C., BAILEY V.P., CLOSE L.M., HINZ P.M., MALES J.R. and MORZINSKI K.M.

Abstract (from CDS):

We present limits on the lens flux of OGLE-2007-BLG-224 based on MagAO imaging taken seven years after the microlensing event. At the time of the observations, the lens should have been separated from the microlensing source by 292 mas. However, no new sources are detected with MagAO. We place an upper limit on the lens flux of H > 20.57. This measurement supports the conclusion of Gould et al. that the lens in this event should be a brown dwarf. This is the first test of a prediction based on the terrestrial microlens parallax effect and the first AO confirmation of a substellar/dark microlens.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Microlensing parallax - High-resolution microlensing event imaging - Gravitational microlensing - Brown dwarfs

CDS comments: Sources 1-11 from table 2 are not in SIMBAD.

Simbad objects: 3

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