短持续时间晶状体事件：II。期望和协议
Short-duration lensing events: II. Expectations and Protocols
摘要：
OGLE和MOA正在进行的微透镜观测定期识别和进行爱因斯坦直径交叉时间τ_E为16天或更少的透镜事件的高节奏采样。已检测到tau_E估计值为1至2天的事件。短持续时间的事件往往是由低质量透镜或高横向速度的透镜产生的。我们计算预期的速率，展示不同质量的透镜的参数的预期范围，并开发用于观察和建模短持续时间事件的协议。对目前使用的程序进行相对较小的补充将提高行星发现的速度，并发现或限制太阳附近高速昏暗恒星和恒星残骸的数量。
英文摘要：
Ongoing microlensing observations by OGLE and MOA regularly identify and conduct high-cadence sampling of lensing events with Einstein diameter crossing time, tau_E, of 16 or fewer days. Events with estimated values of tau_E of one to two days have been detected. Short duration events tend to be generated by low-mass lenses or by lenses with high transverse velocities. We compute the expected rates, demonstrate the expected ranges of parameters for lenses of different mass, and develop a protocol for observing and modeling short-duration events. Relatively minor additions to the procedures presently used will increase the rate of planet discovery, and also discover or place limits on the population of high-speed dim stars and stellar remnants in the vicinity of the Sun.
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