Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits

Exoplanets classified as super-Earths are commonly observed on short period orbits, close to their host stars, but their abundance on wider orbits is poorly constrained. Gravitational microlensing is sensitive to exoplanets on wide orbits. We observed the microlensing event OGLE-2016-BLG-0007, which indicates an exoplanet with a planet-to-star mass ratio roughly double the Earth- Sun mass-ratio, on an orbit longer than Saturn’s. We combine this event with a larger sample from a microlensing survey to determine the distribution of mass ratios for planets on wide orbits. We infer there are ~0.35 super-Earth planets per star on Jupiter-like orbits. The observations are most consistent with a bimodal distribution, with separate peaks for super-Earths and Jupiters. We suggest this reflects differences their formation processes.

, , , # Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits

[https://doi.org/10.5061/dryad.ksn02v7cg](https://doi.org/10.5061/dryad.ksn02v7cg)

Data, tabulated sensitivities, and codes from the paper.

## Description of the data and file structure

### data\_behind\_Fig2.zip

These are the light curve files showing the data used in Figure 2. Dates are in Heliocentric Julian Date (HJD) or HJD - 2450000.
In the tables below, ADU = Analog Digital Units

*KMTNet I-band data:*
KMTA02_I.pysis.dat
KMTA42_I.pysis.dat
KMTC02_I.pysis.dat
KMTC42_I.pysis.dat
KMTS02_I.pysis.dat
KMTS42_I.pysis.dat

Filename convention: KMT[Site][Field]_I.pysis.dat
Columns: HJD - 2450000, magnitude, mag_error, flux, flux_error, FWHM, Sky

| VARIABLE | DEFINITION | UNITS |
| :------------ | :--------------------------------------------------- | :----- |
| HJD - 2450000 | Heliocentric Julian Date (HJD) - 2450000 | days |
| ma...