Street, R. A., Bachelet, E., Tsapras, Y., Hundertmark, M. P. G., Bozza, V., Dominik, M., Bramich, D. M., Cassan, A., Horne, K., Mao, S., and others. (2019) OGLE-2018-BLG-0022: A Nearby M-dwarf Binary. The Astronomical Journal, 157 (6). Article Number 215. ISSN 1538-3881. (doi:10.3847/1538-3881/ab1538) (KAR id:74003)
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| Official URL: https://doi.org/10.3847/1538-3881/ab1538 |
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| Resource title: | OGLE-2018-BLG-0022: A Nearby M-dwarf Binary |
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| Resource type: | ["eprint_fieldopt_related_resource_type_" not defined] |
| : | arXiv:1903.08733 |
| KDR/KAR URL: | |
| External URL: | https://arxiv.org/abs/1903.08733 |
Abstract
We report observations of the binary microlensing event OGLE-2018-BLG-0022, provided by the Robotic Observations of Microlensing Events (ROME)/Reactive Event Assessment (REA) Survey, which indicate that the lens is a low-mass binary star consisting of M3 (0.375 ± 0.020 M ⊙) and M7 (0.098 ± 0.005 M ⊙) components. The lens is unusually close, at 0.998 ± 0.047 kpc, compared with the majority of microlensing events, and despite its intrinsically low luminosity, it is likely that adaptive optics observations in the near future will be able to provide an independent confirmation of the lens masses.
| Item Type: | Article |
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| DOI/Identification number: | 10.3847/1538-3881/ab1538 |
| Uncontrolled keywords: | binaries: general – gravitational lensing: micro – techniques: photometric |
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
| Depositing User: | Stephen Lowry |
| Date Deposited: | 21 May 2019 09:41 UTC |
| Last Modified: | 05 Nov 2024 12:37 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/74003 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Campbell-White, J..
| Creator's ORCID: |
 https://orcid.org/0000-0002-3913-3746
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| CReDIT Contributor Roles: |
Lowry, S.C..
| Creator's ORCID: |
https://orcid.org/0000-0002-5605-4329
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| CReDIT Contributor Roles: |
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