TOI-3714 b and TOI-3629 b: Two Gas Giants Transiting M Dwarfs Confirmed with the Habitable-zone Planet Finder and NEID

Cañas, C.I.; Kanodia, S.; Bender, C.F.; Mahadevan, S.; Stefánsson, G.; Cochran, W.D.; Lin, A.S.J.; Hwang, H.-C.; Powers, L.; Monson, A.; Green, E.M.; Parker, B.A.; Swaby, T.N.; Kobulnicky, H.A.; Wisniewski, J.; Gupta, A.F.; Everett, M.E.; Jones, S., I; Anjakos, B.; Beard, C.; Blake, C.H.; Diddams, S.A.; Dong, Z.; Fredrick, C.; Hakemiamjad, E.; Hebb, L.; Libby-Roberts, J.E.; Logsdon, S.E.; McElwain, M.W.; Metcalf, A.J.; Ninan, J.P.; Rajagopal, J.; Ramsey, L.W.; Robertson, P.; Roy, A.; Ruhle, J.; Schwab, C.; Terrien, R.C.; Wright, J.T.

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Affiliation

Steward Observatory, University of Arizona
Department of Astronomy, University of Arizona

Issue Date

2022

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American Astronomical Society

Citation

Cañas, C. I., Kanodia, S., Bender, C. F., Mahadevan, S., Stefánsson, G., Cochran, W. D., Lin, A. S. J., Hwang, H.-C., Powers, L., Monson, A., Green, E. M., Parker, B. A., Swaby, T. N., Kobulnicky, H. A., Wisniewski, J., Gupta, A. F., Everett, M. E., Jones, S., Anjakos, B., … Wright, J. T. (2022). TOI-3714 b and TOI-3629 b: Two Gas Giants Transiting M Dwarfs Confirmed with the Habitable-zone Planet Finder and NEID. Astronomical Journal, 164(2).

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Astronomical Journal

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This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.

Abstract

We confirm the planetary nature of two gas giants discovered by the Transiting Exoplanet Survey Satellite to transit M dwarfs. TOI-3714 (V = 15.24, J = 11.74) is an M2 dwarf hosting a hot Jupiter (M p = 0.70 ± 0.03 M J and R p = 1.01 ± 0.03 R J ) on an orbital period of 2.154849 ± 0.000001 days with a resolved white dwarf companion. TOI-3629 (V = 14.63, J = 11.42) is an M1 dwarf hosting a hot Jupiter (M p = 0.26 ± 0.02 M J and R p =0.74 ± 0.02 R J ) on an orbital period of 3.936551-0.000006+0.000005 days. We characterize each transiting companion using a combination of ground-based and space-based photometry, speckle imaging, and high-precision velocimetry from the Habitable-zone Planet Finder and the NEID spectrographs. With the discovery of these two systems, there are now nine M dwarfs known to host transiting hot Jupiters. Among this population, TOI-3714 b (T eq = 750 ± 20 K and TSM = 98 ± 7) and TOI-3629 b (T eq = 690 ± 20 K and TSM = 80 ± 9) are warm gas giants amenable to additional characterization with transmission spectroscopy to probe atmospheric chemistry and, for TOI-3714, obliquity measurements to probe formation scenarios. © 2022. The Author(s). Published by the American Astronomical Society.

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Open access journal

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0004-6256

DOI

10.3847/1538-3881/ac7804

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Final published version

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UA Faculty Publications

Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.

Except where otherwise noted, this item's license is described as Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.