MSOS Event Pipelines
The purpose of this MSOS pipeline component is the identification and parameter characterization of microlensing events. This component is divided into event identification, lensing model classification and physical parameter determination.
MSOS Event Pipeline Overview
The MSOS Event Pipeline consists of three main components:
- Microlensing Event Identification using data from the Light Curve and Object Catalogs
- Lensing Model Classification into single-lens or binary-lens systems
- Physical Parameter Determination based on model fits and external datasets
Identified microlensing events are stored in both a Variable Object Catalog and a Microlensing Event Catalog.
Events are classified into single-lens or binary-lens categories, which then proceed to physical modeling.
Physical parameter estimation incorporates additional inputs including:
- Extinction Maps
- Lens Flux Estimates
- Galactic Model Predictions
Final outputs include characterizations of both free-floating planets and gravitationally bound planets.
The pipeline operates on two timescales:
- End-of-season, to detect new events and refine models for known ones
- End-of-survey, to reprocess the full dataset from scratch
The accompanying diagrams illustrate key components and functions of the Event pipeline.
The MSOS microlensing event identification process detects and classifies photometric brightenings using methods adapted from ground-based surveys. It filters out contaminants based on chromaticity, variability, and event concurrence, and evaluates light curve morphology for microlensing consistency. Using inputs from the Light Curve and Object Catalogs, it produces an updated Object Catalog, a Variable Object Catalog, and a Microlensing Event Catalog, distinguishing between single-lens and binary-lens events such as free-floating or bound planets.