TOI-3984 A b and TOI-5293 A b: Two Temperate Gas Giants Transiting Mid-M Dwarfs in Wide Binary Systems

Caleb I. Cañas; Shubham Kanodia; Jessica Libby-Roberts; Andrea S.J. Lin; Maria Schutte; Luke Powers; Sinclaire Jones; Andrew Monson; Songhu Wang; Guđmundur Stefánsson; William D. Cochran; Paul Robertson; Suvrath Mahadevan; Adam F. Kowalski; John Wisniewski; Brock A. Parker; Alexander Larsen; Franklin A.L. Chapman; Henry A. Kobulnicky; Arvind F. Gupta; Mark E. Everett; Bryan Edward Penprase; Gregory Zeimann; Corey Beard; Chad F. Bender; Knicole D. Colón; Scott A. Diddams; Connor Fredrick; Samuel Halverson; Joe P. Ninan; Lawrence W. Ramsey; Arpita Roy; Christian Schwab

doi:10.3847/1538-3881/acdac7

TOI-3984 A b and TOI-5293 A b: Two Temperate Gas Giants Transiting Mid-M Dwarfs in Wide Binary Systems

Caleb I. Cañas, Shubham Kanodia, Jessica Libby-Roberts, Andrea S.J. Lin, Maria Schutte, Luke Powers, Sinclaire Jones, Andrew Monson, Songhu Wang, Guđmundur Stefánsson, William D. Cochran, Paul Robertson, Suvrath Mahadevan, Adam F. Kowalski, John Wisniewski, Brock A. Parker, Alexander Larsen, Franklin A.L. Chapman, Henry A. Kobulnicky, Arvind F. GuptaMark E. Everett, Bryan Edward Penprase, Gregory Zeimann, Corey Beard, Chad F. Bender, Knicole D. Colón, Scott A. Diddams, Connor Fredrick, Samuel Halverson, Joe P. Ninan, Lawrence W. Ramsey, Arpita Roy, Christian Schwab

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Abstract

We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs with stellar companions at wide separations. TOI-3984 A (J = 11.93) is an M4 dwarf hosting a short-period (4.353326 ± 0.000005 days) gas giant (M _p = 0.14 ± 0.03 M _J and R _p = 0.71 ± 0.02 R _J) with a wide-separation white dwarf companion. TOI-5293 A (J = 12.47) is an M3 dwarf hosting a short-period (2.930289 ± 0.000004 days) gas giant (M _p = 0.54 ± 0.07 M _J and R _p = 1.06 ± 0.04 R _J) with a wide-separation M dwarf companion. We characterize both systems using a combination of ground- and space-based photometry, speckle imaging, and high-precision radial velocities from the Habitable-zone Planet Finder and NEID spectrographs. TOI-3984 A b (T _eq = 563 ± 15 K and TSM = 138 − 27 + 29 ) and TOI-5293 A b ( T eq = 675 − 30 + 42 K and TSM = 92 ± 14) are two of the coolest gas giants among the population of hot Jupiter-sized gas planets orbiting M dwarfs and are favorable targets for atmospheric characterization of temperate gas giants and 3D obliquity measurements to probe system architecture and migration scenarios.

Original language	English (US)
Article number	30
Journal	Astronomical Journal
Volume	166
Issue number	1
DOIs	https://doi.org/10.3847/1538-3881/acdac7
State	Published - Jul 1 2023

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Cañas, C. I., Kanodia, S., Libby-Roberts, J., Lin, A. S. J., Schutte, M., Powers, L., Jones, S., Monson, A., Wang, S., Stefánsson, G., Cochran, W. D., Robertson, P., Mahadevan, S., Kowalski, A. F., Wisniewski, J., Parker, B. A., Larsen, A., Chapman, F. A. L., Kobulnicky, H. A., ... Schwab, C. (2023). TOI-3984 A b and TOI-5293 A b: Two Temperate Gas Giants Transiting Mid-M Dwarfs in Wide Binary Systems. Astronomical Journal, 166(1), Article 30. https://doi.org/10.3847/1538-3881/acdac7

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title = "TOI-3984 A b and TOI-5293 A b: Two Temperate Gas Giants Transiting Mid-M Dwarfs in Wide Binary Systems",

abstract = "We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs with stellar companions at wide separations. TOI-3984 A (J = 11.93) is an M4 dwarf hosting a short-period (4.353326 ± 0.000005 days) gas giant (M p = 0.14 ± 0.03 M J and R p = 0.71 ± 0.02 R J) with a wide-separation white dwarf companion. TOI-5293 A (J = 12.47) is an M3 dwarf hosting a short-period (2.930289 ± 0.000004 days) gas giant (M p = 0.54 ± 0.07 M J and R p = 1.06 ± 0.04 R J) with a wide-separation M dwarf companion. We characterize both systems using a combination of ground- and space-based photometry, speckle imaging, and high-precision radial velocities from the Habitable-zone Planet Finder and NEID spectrographs. TOI-3984 A b (T eq = 563 ± 15 K and TSM = 138 − 27 + 29 ) and TOI-5293 A b ( T eq = 675 − 30 + 42 K and TSM = 92 ± 14) are two of the coolest gas giants among the population of hot Jupiter-sized gas planets orbiting M dwarfs and are favorable targets for atmospheric characterization of temperate gas giants and 3D obliquity measurements to probe system architecture and migration scenarios.",

author = "Ca{\~n}as, {Caleb I.} and Shubham Kanodia and Jessica Libby-Roberts and Lin, {Andrea S.J.} and Maria Schutte and Luke Powers and Sinclaire Jones and Andrew Monson and Songhu Wang and Gu{\d}mundur Stef{\'a}nsson and Cochran, {William D.} and Paul Robertson and Suvrath Mahadevan and Kowalski, {Adam F.} and John Wisniewski and Parker, {Brock A.} and Alexander Larsen and Chapman, {Franklin A.L.} and Kobulnicky, {Henry A.} and Gupta, {Arvind F.} and Everett, {Mark E.} and Penprase, {Bryan Edward} and Gregory Zeimann and Corey Beard and Bender, {Chad F.} and Col{\'o}n, {Knicole D.} and Diddams, {Scott A.} and Connor Fredrick and Samuel Halverson and Ninan, {Joe P.} and Ramsey, {Lawrence W.} and Arpita Roy and Christian Schwab",

note = "Publisher Copyright: {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",

year = "2023",

month = jul,

day = "1",

doi = "10.3847/1538-3881/acdac7",

language = "English (US)",

volume = "166",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "1",

}

Cañas, CI, Kanodia, S, Libby-Roberts, J, Lin, ASJ, Schutte, M, Powers, L, Jones, S, Monson, A, Wang, S, Stefánsson, G, Cochran, WD, Robertson, P, Mahadevan, S, Kowalski, AF, Wisniewski, J, Parker, BA, Larsen, A, Chapman, FAL, Kobulnicky, HA, Gupta, AF, Everett, ME, Penprase, BE, Zeimann, G, Beard, C, Bender, CF, Colón, KD, Diddams, SA, Fredrick, C, Halverson, S, Ninan, JP, Ramsey, LW, Roy, A & Schwab, C 2023, 'TOI-3984 A b and TOI-5293 A b: Two Temperate Gas Giants Transiting Mid-M Dwarfs in Wide Binary Systems', Astronomical Journal, vol. 166, no. 1, 30. https://doi.org/10.3847/1538-3881/acdac7

TY - JOUR

T1 - TOI-3984 A b and TOI-5293 A b

T2 - Two Temperate Gas Giants Transiting Mid-M Dwarfs in Wide Binary Systems

AU - Cañas, Caleb I.

AU - Kanodia, Shubham

AU - Libby-Roberts, Jessica

AU - Lin, Andrea S.J.

AU - Schutte, Maria

AU - Powers, Luke

AU - Jones, Sinclaire

AU - Monson, Andrew

AU - Wang, Songhu

AU - Stefánsson, Guđmundur

AU - Cochran, William D.

AU - Robertson, Paul

AU - Mahadevan, Suvrath

AU - Kowalski, Adam F.

AU - Wisniewski, John

AU - Parker, Brock A.

AU - Larsen, Alexander

AU - Chapman, Franklin A.L.

AU - Kobulnicky, Henry A.

AU - Gupta, Arvind F.

AU - Everett, Mark E.

AU - Penprase, Bryan Edward

AU - Zeimann, Gregory

AU - Beard, Corey

AU - Bender, Chad F.

AU - Colón, Knicole D.

AU - Diddams, Scott A.

AU - Fredrick, Connor

AU - Halverson, Samuel

AU - Ninan, Joe P.

AU - Ramsey, Lawrence W.

AU - Roy, Arpita

AU - Schwab, Christian

PY - 2023/7/1

Y1 - 2023/7/1

N2 - We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs with stellar companions at wide separations. TOI-3984 A (J = 11.93) is an M4 dwarf hosting a short-period (4.353326 ± 0.000005 days) gas giant (M p = 0.14 ± 0.03 M J and R p = 0.71 ± 0.02 R J) with a wide-separation white dwarf companion. TOI-5293 A (J = 12.47) is an M3 dwarf hosting a short-period (2.930289 ± 0.000004 days) gas giant (M p = 0.54 ± 0.07 M J and R p = 1.06 ± 0.04 R J) with a wide-separation M dwarf companion. We characterize both systems using a combination of ground- and space-based photometry, speckle imaging, and high-precision radial velocities from the Habitable-zone Planet Finder and NEID spectrographs. TOI-3984 A b (T eq = 563 ± 15 K and TSM = 138 − 27 + 29 ) and TOI-5293 A b ( T eq = 675 − 30 + 42 K and TSM = 92 ± 14) are two of the coolest gas giants among the population of hot Jupiter-sized gas planets orbiting M dwarfs and are favorable targets for atmospheric characterization of temperate gas giants and 3D obliquity measurements to probe system architecture and migration scenarios.

AB - We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs with stellar companions at wide separations. TOI-3984 A (J = 11.93) is an M4 dwarf hosting a short-period (4.353326 ± 0.000005 days) gas giant (M p = 0.14 ± 0.03 M J and R p = 0.71 ± 0.02 R J) with a wide-separation white dwarf companion. TOI-5293 A (J = 12.47) is an M3 dwarf hosting a short-period (2.930289 ± 0.000004 days) gas giant (M p = 0.54 ± 0.07 M J and R p = 1.06 ± 0.04 R J) with a wide-separation M dwarf companion. We characterize both systems using a combination of ground- and space-based photometry, speckle imaging, and high-precision radial velocities from the Habitable-zone Planet Finder and NEID spectrographs. TOI-3984 A b (T eq = 563 ± 15 K and TSM = 138 − 27 + 29 ) and TOI-5293 A b ( T eq = 675 − 30 + 42 K and TSM = 92 ± 14) are two of the coolest gas giants among the population of hot Jupiter-sized gas planets orbiting M dwarfs and are favorable targets for atmospheric characterization of temperate gas giants and 3D obliquity measurements to probe system architecture and migration scenarios.

UR - http://www.scopus.com/inward/record.url?scp=85163829791&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85163829791&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/acdac7

DO - 10.3847/1538-3881/acdac7

M3 - Article

AN - SCOPUS:85163829791

SN - 0004-6256

VL - 166

JO - Astronomical Journal

JF - Astronomical Journal

IS - 1

M1 - 30

ER -

TOI-3984 A b and TOI-5293 A b: Two Temperate Gas Giants Transiting Mid-M Dwarfs in Wide Binary Systems

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