9 new M Dwarf Planet Candidates from TESS Including 5 Gas Giants

TL;DR

This paper reports the discovery of nine new planet candidates around M dwarfs from TESS data, including five gas giants, highlighting their potential for follow-up studies and contributing to understanding planet formation around low-mass stars.

Contribution

The study introduces an independent pipeline that identified nine new M dwarf planet candidates, notably including five gas giants, which are rare around such stars.

Findings

Identified 9 new planet candidates orbiting M dwarfs.

Discovered 5 gas giants, a rare occurrence around M dwarfs.

Highlighted TIC 12999193.01 as a promising target for follow-up observations.

Abstract

We present the detection of 9 new planet candidates orbiting M dwarfs, identified using an independent search and vetting pipeline applied to TESS Full-Frame Image (FFI) data from Sectors 1 to 63. Our candidates include planets as small as 1.4 $R_{\oplus}$, with orbital periods up to 20 days. Among the 9 new candidates, we identified 5 gas giants, which represent a rare and unexpected outcome of planet formation. Our findings add to the growing sample of giant planets around M dwarfs found by TESS. We discuss their follow-up potential for mass measurements through radial velocity observations and atmospheric characterization through transmission spectroscopy. We highlight TIC 12999193.01 as a particularly unique gas giant candidate in an eccentric orbit and excellent potential for atmospheric characterisation.