Searching for Planets During Predicted Mesolensing Events: II. PLAN-IT: An Observing Program and its Application to VB 10
Rosanne Di Stefano, James Matthews, Sebastien Lepine

TL;DR
This paper discusses an observing program designed to detect planets during predicted mesolensing events, emphasizing strategies for monitoring multiple systems to discover or rule out planets, with application to the star VB 10.
Contribution
It introduces the PLAN-IT observing program framework for detecting planets in predicted lensing events, including strategies for imprecise predictions and ensemble monitoring.
Findings
Monitoring programs can detect planets within about two Einstein radii.
Ensemble monitoring ensures discovery or exclusion of planets in targeted systems.
Application to VB 10 demonstrates the program's potential despite prediction uncertainties.
Abstract
The successful prediction of lensing events is a new and exciting enterprise that provides opportunities to discover and study planetary systems. The companion paper investigates the underlying theory. This paper is devoted to outlining the components of observing programs that can discover planets orbiting stars predicted to make a close approach to a background star. If the time and distance of closest approach can be well predicted, then the system can be targeted for individual study. In most cases, however, the predictions will be imprecise, yielding only a set of probable paths of approach and event times. We must monitor an ensemble of such systems to ensure discovery, a strategy possible with observing programs similar to a number of current surveys, including PTF and Pan-STARRS; nova searches, including those conducted by amateurs; ongoing lensing programs such as MOA and OGLE;…
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Taxonomy
TopicsAstro and Planetary Science · Gamma-ray bursts and supernovae · Stellar, planetary, and galactic studies
