OGLE-2018-BLG-0022

A Nearby M-dwarf Binary

ROME/REA Team, MiNDSTEp Team, R. A. Street (Lead / Corresponding author), E. Bachelet, Y. Tsapras, M. P. G. Hundertmark, V. Bozza, M. Dominik, D. M. Bramich, A. Cassan, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, U. G. Jørgensen, P. Longa-Peña, N. Peixinho, S. Sajadian, M. J. Burgdorf & 12 others J. Campbell-White, S. Dib, Y. I. Fujii, T. C. Hinse, E. Khalouei, S. Lowry, S. Rahvar, M. Rabus, J. Skottfelt, C. Snodgrass, J. Southworth, J. Tregloan-Reed

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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....
Original languageEnglish
Article number215
Pages (from-to)1-11
Number of pages11
JournalAstronomical Journal
Volume157
Issue number6
Early online date7 May 2019
DOIs
Publication statusPublished - Jun 2019

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lenses
robotics
binary stars
adaptive optics
luminosity

Keywords

  • binaries: general
  • gravitational lensing: micro
  • techniques: photometric

Cite this

ROME/REA Team, MiNDSTEp Team, Street, R. A., Bachelet, E., Tsapras, Y., Hundertmark, M. P. G., ... Tregloan-Reed, J. (2019). OGLE-2018-BLG-0022: A Nearby M-dwarf Binary. Astronomical Journal, 157(6), 1-11. [215]. https://doi.org/10.3847/1538-3881/ab1538
ROME/REA Team ; MiNDSTEp Team ; Street, R. A. ; Bachelet, E. ; Tsapras, Y. ; Hundertmark, M. P. G. ; Bozza, V. ; Dominik, M. ; Bramich, D. M. ; Cassan, A. ; Horne, K. ; Mao, S. ; Saha, A. ; Wambsganss, J. ; Zang, Weicheng ; Jørgensen, U. G. ; Longa-Peña, P. ; Peixinho, N. ; Sajadian, S. ; Burgdorf, M. J. ; Campbell-White, J. ; Dib, S. ; Fujii, Y. I. ; Hinse, T. C. ; Khalouei, E. ; Lowry, S. ; Rahvar, S. ; Rabus, M. ; Skottfelt, J. ; Snodgrass, C. ; Southworth, J. ; Tregloan-Reed, J. / OGLE-2018-BLG-0022 : A Nearby M-dwarf Binary. In: Astronomical Journal. 2019 ; Vol. 157, No. 6. pp. 1-11.
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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....",
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author = "{ROME/REA Team} and {MiNDSTEp Team} and Street, {R. A.} and E. Bachelet and Y. Tsapras and Hundertmark, {M. P. G.} and V. Bozza and M. Dominik and Bramich, {D. M.} and A. Cassan and K. Horne and S. Mao and A. Saha and J. Wambsganss and Weicheng Zang and J{\o}rgensen, {U. G.} and P. Longa-Pe{\~n}a and N. Peixinho and S. Sajadian and Burgdorf, {M. J.} and J. Campbell-White and S. Dib and Fujii, {Y. I.} and Hinse, {T. C.} and E. Khalouei and S. Lowry and S. Rahvar and M. Rabus and J. Skottfelt and C. Snodgrass and J. Southworth and J. Tregloan-Reed",
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language = "English",
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ROME/REA Team, MiNDSTEp Team, Street, RA, Bachelet, E, Tsapras, Y, Hundertmark, MPG, Bozza, V, Dominik, M, Bramich, DM, Cassan, A, Horne, K, Mao, S, Saha, A, Wambsganss, J, Zang, W, Jørgensen, UG, Longa-Peña, P, Peixinho, N, Sajadian, S, Burgdorf, MJ, Campbell-White, J, Dib, S, Fujii, YI, Hinse, TC, Khalouei, E, Lowry, S, Rahvar, S, Rabus, M, Skottfelt, J, Snodgrass, C, Southworth, J & Tregloan-Reed, J 2019, 'OGLE-2018-BLG-0022: A Nearby M-dwarf Binary', Astronomical Journal, vol. 157, no. 6, 215, pp. 1-11. https://doi.org/10.3847/1538-3881/ab1538

OGLE-2018-BLG-0022 : A Nearby M-dwarf Binary. / ROME/REA Team; MiNDSTEp Team; Street, R. A. (Lead / Corresponding author); Bachelet, E.; Tsapras, Y.; Hundertmark, M. P. G.; Bozza, V.; Dominik, M.; Bramich, D. M.; Cassan, A.; Horne, K.; Mao, S.; Saha, A.; Wambsganss, J.; Zang, Weicheng; Jørgensen, U. G.; Longa-Peña, P.; Peixinho, N.; Sajadian, S.; Burgdorf, M. J.; Campbell-White, J.; Dib, S.; Fujii, Y. I.; Hinse, T. C.; Khalouei, E.; Lowry, S.; Rahvar, S.; Rabus, M.; Skottfelt, J.; Snodgrass, C.; Southworth, J.; Tregloan-Reed, J.

In: Astronomical Journal, Vol. 157, No. 6, 215, 06.2019, p. 1-11.

Research output: Contribution to journalArticle

TY - JOUR

T1 - OGLE-2018-BLG-0022

T2 - A Nearby M-dwarf Binary

AU - ROME/REA Team

AU - MiNDSTEp Team

AU - Street, R. A.

AU - Bachelet, E.

AU - Tsapras, Y.

AU - Hundertmark, M. P. G.

AU - Bozza, V.

AU - Dominik, M.

AU - Bramich, D. M.

AU - Cassan, A.

AU - Horne, K.

AU - Mao, S.

AU - Saha, A.

AU - Wambsganss, J.

AU - Zang, Weicheng

AU - Jørgensen, U. G.

AU - Longa-Peña, P.

AU - Peixinho, N.

AU - Sajadian, S.

AU - Burgdorf, M. J.

AU - Campbell-White, J.

AU - Dib, S.

AU - Fujii, Y. I.

AU - Hinse, T. C.

AU - Khalouei, E.

AU - Lowry, S.

AU - Rahvar, S.

AU - Rabus, M.

AU - Skottfelt, J.

AU - Snodgrass, C.

AU - Southworth, J.

AU - Tregloan-Reed, J.

PY - 2019/6

Y1 - 2019/6

N2 - 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....

AB - 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....

KW - binaries: general

KW - gravitational lensing: micro

KW - techniques: photometric

U2 - 10.3847/1538-3881/ab1538

DO - 10.3847/1538-3881/ab1538

M3 - Article

VL - 157

SP - 1

EP - 11

JO - Astronomical Journal

JF - Astronomical Journal

SN - 0004-6256

IS - 6

M1 - 215

ER -

ROME/REA Team, MiNDSTEp Team, Street RA, Bachelet E, Tsapras Y, Hundertmark MPG et al. OGLE-2018-BLG-0022: A Nearby M-dwarf Binary. Astronomical Journal. 2019 Jun;157(6):1-11. 215. https://doi.org/10.3847/1538-3881/ab1538