The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs
(2024) In Astronomical Journal 167(6).- Abstract
- Sub-Neptunes with radii of 2-3 R ⊕ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small planets. In this paper, we present the discovery and follow-up of four sub-Neptunes orbiting M dwarfs (TOI-782, TOI-1448, TOI-2120, and TOI-2406), three of which were newly validated by ground-based follow-up observations and statistical analyses. TOI-782 b, TOI-1448 b, TOI-2120 b, and TOI-2406 b have radii of R p = 2.740 − 0.079 + 0.082 R ⊕ , 2.769 − 0.068 + 0.073 R ⊕ , 2.120 ± 0.067 R ⊕, and 2.830 − 0.066 + 0.068 R ⊕ and orbital periods of P = 8.02, 8.11, 5.80, and 3.08 days, respectively. Doppler... (More)
- Sub-Neptunes with radii of 2-3 R ⊕ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small planets. In this paper, we present the discovery and follow-up of four sub-Neptunes orbiting M dwarfs (TOI-782, TOI-1448, TOI-2120, and TOI-2406), three of which were newly validated by ground-based follow-up observations and statistical analyses. TOI-782 b, TOI-1448 b, TOI-2120 b, and TOI-2406 b have radii of R p = 2.740 − 0.079 + 0.082 R ⊕ , 2.769 − 0.068 + 0.073 R ⊕ , 2.120 ± 0.067 R ⊕, and 2.830 − 0.066 + 0.068 R ⊕ and orbital periods of P = 8.02, 8.11, 5.80, and 3.08 days, respectively. Doppler monitoring with the Subaru/InfraRed Doppler instrument led to 2σ upper limits on the masses of (Less)
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- author
- Hori, Y. ; Korth, J. LU and Winn, J.N.
- author collaboration
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Astronomical Journal
- volume
- 167
- issue
- 6
- article number
- 289
- publisher
- IOP Publishing
- external identifiers
-
- scopus:85195029630
- ISSN
- 0004-6256
- DOI
- 10.3847/1538-3881/ad4115
- language
- English
- LU publication?
- yes
- id
- d85da14f-6226-4e7a-98d4-bfadeba0d17b
- date added to LUP
- 2024-08-30 14:00:29
- date last changed
- 2024-08-30 14:01:35
@article{d85da14f-6226-4e7a-98d4-bfadeba0d17b, abstract = {{Sub-Neptunes with radii of 2-3 R ⊕ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small planets. In this paper, we present the discovery and follow-up of four sub-Neptunes orbiting M dwarfs (TOI-782, TOI-1448, TOI-2120, and TOI-2406), three of which were newly validated by ground-based follow-up observations and statistical analyses. TOI-782 b, TOI-1448 b, TOI-2120 b, and TOI-2406 b have radii of R p = 2.740 − 0.079 + 0.082 R ⊕ , 2.769 − 0.068 + 0.073 R ⊕ , 2.120 ± 0.067 R ⊕, and 2.830 − 0.066 + 0.068 R ⊕ and orbital periods of P = 8.02, 8.11, 5.80, and 3.08 days, respectively. Doppler monitoring with the Subaru/InfraRed Doppler instrument led to 2σ upper limits on the masses of}}, author = {{Hori, Y. and Korth, J. and Winn, J.N.}}, issn = {{0004-6256}}, language = {{eng}}, number = {{6}}, publisher = {{IOP Publishing}}, series = {{Astronomical Journal}}, title = {{The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs}}, url = {{http://dx.doi.org/10.3847/1538-3881/ad4115}}, doi = {{10.3847/1538-3881/ad4115}}, volume = {{167}}, year = {{2024}}, }