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Nine new M dwarf planet candidates from TESS including five gas giants.

Authors :
Eschen, Yoshi Nike Emilia
Kunimoto, Michelle
Source :
Monthly Notices of the Royal Astronomical Society. 7/15/2024, Vol. 531 Issue 4, p5053-5060. 8p.
Publication Year :
2024

Abstract

We present the detection of nine new planet candidates orbiting M dwarfs, identified using an independent search and vetting pipeline applied to TESS Full-Frame Image data from Sectors 1 to 63. Our candidates include planets as small as 1.4  |$\mathrm{ R}_{{\oplus }}$|⁠ , with orbital periods up to 20 d. Among the nine new candidates, we identified five 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 characterization. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00358711
Volume :
531
Issue :
4
Database :
Academic Search Index
Journal :
Monthly Notices of the Royal Astronomical Society
Publication Type :
Academic Journal
Accession number :
178299783
Full Text :
https://doi.org/10.1093/mnras/stae1496