# Transiting Planets with LSST III: Detection Rate per Year of Operation

## TL;DR

This paper analyzes how the detection rate of transiting exoplanets with LSST improves over time, showing steady increases and early detections for certain short-period planets within the first 2 years.

## Contribution

It extends previous work by quantifying the yearly evolution of transiting planet recoverability across different orbital periods and stellar types.

## Key findings

- Detection rates increase steadily over 4-6 years.
- Short-period hot Jupiters and hot Neptunes can be detected within 1-2 years.
- Large detection probabilities (>10%) are achieved after 4-6 years.

## Abstract

The Large Synoptic Survey Telescope (LSST) will generate light curves for approximately 1 billion stars. Our previous work has demonstrated that, by the end of the LSST 10 year mission, large numbers of transiting exoplanetary systems could be recovered using the LSST "deep drilling" cadence. Here we extend our previous work to examine how the recoverability of transiting planets over a range of orbital periods and radii evolves per year of LSST operation. As specific example systems we consider hot Jupiters orbiting solar-type stars and hot Neptunes orbiting K-Dwarfs at distances from Earth of several kpc, as well as super-Earths orbiting nearby low-mass M-dwarfs. The detection of transiting planets increases steadily with the accumulation of data over time, generally becoming large (greater than 10 percent) after 4 - 6 years of operation. However, we also find that short-period (less than 2 day) hot Jupiters orbiting G-dwarfs and hot Neptunes orbiting K-dwarfs can already be discovered within the first 1 - 2 years of LSST operation.