# The independent discovery of planet candidates around low mass stars and astrophysical false positives from the first two TESS sectors

## TL;DR

This paper presents an independent detection pipeline applied to TESS data, discovering new small planet candidates around low mass stars and validating their potential as targets for future atmospheric studies.

## Contribution

The paper introduces a new detection pipeline and applies it to TESS data, identifying and statistically validating new small planet candidates around low mass stars.

## Key findings

- Detected 8 new planet candidates smaller than 4 Earth radii.
- Identified 7 probable blended eclipsing binaries and 8 known TOIs.
- Validated the pipeline's effectiveness for finding sub-Neptune-sized planets.

## Abstract

Continuous data releases throughout the TESS primary mission will provide unique opportunities for the exoplanet community at large to contribute to maximizing TESS's scientific return via the discovery and validation of transiting planets. This paper introduces our independent detection pipeline of periodic transit events along with the results of its inaugural application to the recently released 2 minute light curves of low mass stars from the first two TESS sectors. The stellar parameters within our sample are refined using precise parallax measurements from the GAIA DR2 which reduces the number of low mass stars in our sample relative to those listed in the TESS Input Catalog. In lieu of the follow-up observations required to confirm or refute the planetary nature of transit-like signals, a validation of transit-like events flagged by our pipeline is performed statistically. The resulting vetted catalog contains seven probable blended eclipsing binaries, eight known TOIs, plus eight new planet candidates smaller than 4 Earth radii. This work demonstrates the ability of our pipeline to detect sub-Neptune-sized planet candidates which to-date, represent some of the most attractive targets for future atmospheric characterization via transmission or thermal emission spectroscopy and for radial velocity efforts aimed at the completion of the TESS level one requirement to deliver 50 planets smaller than 4 Earth radii with measured masses.