2024MNRAS.531.5053E


Query : 2024MNRAS.531.5053E

2024MNRAS.531.5053E - Mon. Not. R. Astron. Soc., 531, 5053-5060 (2024/July-2)

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

ESCHEN Y.N.E. and KUNIMOTO M.

Abstract (from CDS):

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 Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): methods: data analysis - techniques: photometric - planets and satellites: detection - planets and satellites: gaseous planets - stars: low-mass

Simbad objects: 25

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Number of rows : 25
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 CD-55 9423b Pl 00 00 44.9091865512 -54 49 49.852301232           ~ 26 0
2 HATS-71 PM* 01 02 12.2806419528 -61 45 21.661597188         14.01 M3 18 0
3 CTOI 231080232.01 Pl? 04 32 04.4393688672 -68 52 58.040743584           ~ 1 0
4 SCR J0432-6852 PM* 04 32 04.4393688672 -68 52 58.040743584   15.48   13.34 12.17 ~ 6 0
5 CTOI 303682623.01 Pl? 05 03 04.6011139496 +14 21 21.766520625           ~ 1 0
6 2MASS J05030461+1421217 * 05 03 04.6011139496 +14 21 21.766520625           ~ 3 0
7 CTOI 231949697.01 Pl? 06 17 01.9005504933 -43 21 59.168547719           ~ 1 0
8 TIC 231949697 PM* 06 17 01.9005504933 -43 21 59.168547719           ~ 3 0
9 TOI-700d Pl 06 28 23.2285331376 -65 34 45.520447908           ~ 64 0
10 TOI-700e Pl 06 28 23.2285331376 -65 34 45.520447908           ~ 20 0
11 2MASS J08494808+0012264 * 08 49 48.0878819101 +00 12 26.498492137           ~ 3 0
12 CTOI 262605715.01 Pl? 08 49 48.0878819101 +00 12 26.498492137           ~ 2 0
13 CTOI 251090642.01 Pl? 09 19 10.5496919192 +53 35 40.720540870           ~ 1 0
14 TIC 251090642 * 09 19 10.5496919192 +53 35 40.720540870           ~ 1 0
15 UPM J1349-4603 PM* 13 49 53.9776609320 -46 03 58.454133372   16.5   14.5 12.6 M4 20 0
16 UCAC4 581-053434 * 16 30 57.3173462402 +26 06 24.908102886   16.877 15.319 14.908   M2.9 7 0
17 CTOI 311276853.01 Pl? 16 30 57.3173462402 +26 06 24.908102886           ~ 2 0
18 Kepler-447b Pl 19 01 04.4556648384 +48 33 35.945205516           ~ 44 0
19 TOI-5205b Pl 20 55 04.9163832653 +24 21 38.710082580           ~ 25 0
20 LP 873-25 PM* 21 16 45.3224365680 -25 47 10.679946468     15.01     ~ 6 0
21 CTOI 290048573.01 Pl? 21 16 45.3224365680 -25 47 10.679946468           ~ 2 0
22 CTOI 12999193.01 Pl? 23 07 25.6105263144 -28 21 14.322192300           ~ 2 0
23 WT 2313 PM* 23 07 25.6105263144 -28 21 14.322192300   16.0       ~ 4 0
24 CTOI 268727719.01 Pl? 23 11 49.5696853033 +65 13 48.317644111           ~ 1 0
25 UCAC4 777-050302 PM* 23 11 49.5696853033 +65 13 48.317644111       14.730   ~ 2 0

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