تقرير
MagAO observations of the binary microlens OGLE-2014-BLG-1050 prefer the higher-mass solution
| العنوان: | MagAO observations of the binary microlens OGLE-2014-BLG-1050 prefer the higher-mass solution |
|---|---|
| المؤلفون: | Xie, Xiaojia, Dong, Subo, Zhu, Wei, Gould, A., Udalski, A., Beaulieu, J. -P., Close, L. M., Males, J. R., Marquette, J. -B., Morzinski, K. M., Pogge, R. W., Yee, J. C. |
| المصدر: | 2021, AJ, 161, 113 |
| سنة النشر: | 2021 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Astrophysics of Galaxies |
| الوصف: | We report adaptive-optics (AO) follow-up imaging of OGLE-2014-BLG-1050, which is the second binary microlensing event with space-based parallax measurements. The degeneracy in microlens parallax pi_E led to two sets of solutions, either a ~(0.9, 0.35) M_Sun binary at ~3.5 kpc, or a ~(0.2, 0.07) M_Sun binary at ~1.1 kpc. We measure the flux blended with the microlensed source by conducting Magellan AO observations, and find that the blending is consistent with the predicted lens flux from the higher-mass solution. From the combination of the AO flux measurement together with previous lensing constraints, it is estimated that} the lens system consists of a $1.05^{+0.08}_{-0.07}$ M_Sun primary and a $0.38^{+0.07}_{-0.06}$ M_Sun secondary at $3.43^{+0.19}_{-0.21}$ kpc. Comment: Published in AJ |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-3881/abd6c0 |
| URL الوصول: | http://arxiv.org/abs/2112.08029 |
| رقم الأكسشن: | edsarx.2112.08029 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-3881/abd6c0 |
|---|