TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion

David V. Martin; Kareem El-Badry; Vedad Kunovac Hodžić; Amaury H. M. J. Triaud; Ruth Angus; Jessica Birky; Daniel Foreman-Mackey; Christina Hedges; Benjamin T. Montet; Simon J. Murphy; Alexandre Santerne; Keivan G. Stassun; Alexander P. Stephan; Ji Wang; Paul Benni; Vadim Krushinsky; Nikita Chazov; Nikolay Mishevskiy; Carl Ziegler; Abderahmane Soubkiou; Zouhair Benkhaldoun; Douglas A. Caldwell; Karen Collins; Christopher E. Henze; Natalia M. Guerrero; Jon M. Jenkins; David W. Latham; Adam Levine; Scott McDermott; Susan E. Mullally; George Ricker; Sara Seager; Avi Shporer; Andrew Vanderburg; Roland Vanderspek; Joshua N. Winn

doi:10.1093/mnras/stab2129

TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion

David V. Martin, Kareem El-Badry, Vedad Kunovac Hodžić, Amaury H. M. J. Triaud, Ruth Angus, Jessica Birky, Daniel Foreman-Mackey, Christina Hedges, Benjamin T. Montet, Simon J. Murphy, Alexandre Santerne, Keivan G. Stassun, Alexander P. Stephan, Ji Wang, Paul Benni, Vadim Krushinsky, Nikita Chazov, Nikolay Mishevskiy, Carl Ziegler, Abderahmane SoubkiouZouhair Benkhaldoun, Douglas A. Caldwell, Karen Collins, Christopher E. Henze, Natalia M. Guerrero, Jon M. Jenkins, David W. Latham, Adam Levine, Scott McDermott, Susan E. Mullally, George Ricker, Sara Seager, Avi Shporer, Andrew Vanderburg, Roland Vanderspek, Joshua N. Winn

Physics and Astronomy

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Abstract

We present TOI-1259Ab, a 1.0 R_jup gas giant planet transiting a 0.71 R_⊙ K-dwarf on a 3.48 day orbit. The system also contains a bound white dwarf companion TOI-1259B with a projected distance of approximately 1600 AU from the planet host. Transits are observed in nine TESS sector and are 2.7 per cent deep - among the deepest known - making TOI-1259Ab a promising target for atmospheric characterization. Our follow-up radial velocity measurements indicate a variability of semiamplitude K = 71 ms^-1, implying a planet mass of 0.44 M_jup. By fitting the spectral energy distribution of the white dwarf we derive a total age of 4.08^+1.21_-0.53Gyr for the system. The K-dwarf's light curve reveals a rotational variability with a period of 28 days, which implies a gyrochronology age broadly consistent with the white dwarf's total age.

Original language	English
Pages (from-to)	4132-4148
Journal	Monthly Notices of the Royal Astronomical Society
Volume	507
Issue number	3
Early online date	27 Jul 2021
DOIs	https://doi.org/10.1093/mnras/stab2129
Publication status	E-pub ahead of print - 27 Jul 2021

Bibliographical note

Final Version of Record not yet available as of 04/08/2021.

Accepted to MNRAS. Some structural changes from first arXiv version but no significant changes to results. One figure got a bit prettier

Keywords

astro-ph.EP
astro-ph.SR

Access to Document

10.1093/mnras/stab2129Licence: None: All rights reserved

MartinD2021TOI
This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record, Martin, D.V et al., TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion, Monthly Notices of the Royal Astronomical Society, 2021;, stab2129, is available online at: https://doi.org/10.1093/mnras/stab2129
Accepted author manuscript, 3.86 MBLicence: None: All rights reserved

Cite this

Martin, D. V., El-Badry, K., Hodžić, V. K., Triaud, A. H. M. J., Angus, R., Birky, J., Foreman-Mackey, D., Hedges, C., Montet, B. T., Murphy, S. J., Santerne, A., Stassun, K. G., Stephan, A. P., Wang, J., Benni, P., Krushinsky, V., Chazov, N., Mishevskiy, N., Ziegler, C., ... Winn, J. N. (2021). TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion. Monthly Notices of the Royal Astronomical Society, 507(3), 4132-4148. Advance online publication. https://doi.org/10.1093/mnras/stab2129

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title = "TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion",

abstract = "We present TOI-1259Ab, a 1.0 Rjup gas giant planet transiting a 0.71 R⊙ K-dwarf on a 3.48 day orbit. The system also contains a bound white dwarf companion TOI-1259B with a projected distance of approximately 1600 AU from the planet host. Transits are observed in nine TESS sector and are 2.7 per cent deep - among the deepest known - making TOI-1259Ab a promising target for atmospheric characterization. Our follow-up radial velocity measurements indicate a variability of semiamplitude K = 71 ms-1, implying a planet mass of 0.44 Mjup. By fitting the spectral energy distribution of the white dwarf we derive a total age of 4.08+1.21-0.53 Gyr for the system. The K-dwarf's light curve reveals a rotational variability with a period of 28 days, which implies a gyrochronology age broadly consistent with the white dwarf's total age. ",

keywords = "astro-ph.EP, astro-ph.SR",

author = "Martin, {David V.} and Kareem El-Badry and Hod{\v z}i{\'c}, {Vedad Kunovac} and Triaud, {Amaury H. M. J.} and Ruth Angus and Jessica Birky and Daniel Foreman-Mackey and Christina Hedges and Montet, {Benjamin T.} and Murphy, {Simon J.} and Alexandre Santerne and Stassun, {Keivan G.} and Stephan, {Alexander P.} and Ji Wang and Paul Benni and Vadim Krushinsky and Nikita Chazov and Nikolay Mishevskiy and Carl Ziegler and Abderahmane Soubkiou and Zouhair Benkhaldoun and Caldwell, {Douglas A.} and Karen Collins and Henze, {Christopher E.} and Guerrero, {Natalia M.} and Jenkins, {Jon M.} and Latham, {David W.} and Adam Levine and Scott McDermott and Mullally, {Susan E.} and George Ricker and Sara Seager and Avi Shporer and Andrew Vanderburg and Roland Vanderspek and Winn, {Joshua N.}",

note = "Final Version of Record not yet available as of 04/08/2021. Accepted to MNRAS. Some structural changes from first arXiv version but no significant changes to results. One figure got a bit prettier",

year = "2021",

month = jul,

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doi = "10.1093/mnras/stab2129",

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Martin, DV, El-Badry, K, Hodžić, VK, Triaud, AHMJ, Angus, R, Birky, J, Foreman-Mackey, D, Hedges, C, Montet, BT, Murphy, SJ, Santerne, A, Stassun, KG, Stephan, AP, Wang, J, Benni, P, Krushinsky, V, Chazov, N, Mishevskiy, N, Ziegler, C, Soubkiou, A, Benkhaldoun, Z, Caldwell, DA, Collins, K, Henze, CE, Guerrero, NM, Jenkins, JM, Latham, DW, Levine, A, McDermott, S, Mullally, SE, Ricker, G, Seager, S, Shporer, A, Vanderburg, A, Vanderspek, R & Winn, JN 2021, 'TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion', Monthly Notices of the Royal Astronomical Society, vol. 507, no. 3, pp. 4132-4148. https://doi.org/10.1093/mnras/stab2129

TY - JOUR

T1 - TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion

AU - Martin, David V.

AU - El-Badry, Kareem

AU - Hodžić, Vedad Kunovac

AU - Triaud, Amaury H. M. J.

AU - Angus, Ruth

AU - Birky, Jessica

AU - Foreman-Mackey, Daniel

AU - Hedges, Christina

AU - Montet, Benjamin T.

AU - Murphy, Simon J.

AU - Santerne, Alexandre

AU - Stassun, Keivan G.

AU - Stephan, Alexander P.

AU - Wang, Ji

AU - Benni, Paul

AU - Krushinsky, Vadim

AU - Chazov, Nikita

AU - Mishevskiy, Nikolay

AU - Ziegler, Carl

AU - Soubkiou, Abderahmane

AU - Benkhaldoun, Zouhair

AU - Caldwell, Douglas A.

AU - Collins, Karen

AU - Henze, Christopher E.

AU - Guerrero, Natalia M.

AU - Jenkins, Jon M.

AU - Latham, David W.

AU - Levine, Adam

AU - McDermott, Scott

AU - Mullally, Susan E.

AU - Ricker, George

AU - Seager, Sara

AU - Shporer, Avi

AU - Vanderburg, Andrew

AU - Vanderspek, Roland

AU - Winn, Joshua N.

N1 - Final Version of Record not yet available as of 04/08/2021. Accepted to MNRAS. Some structural changes from first arXiv version but no significant changes to results. One figure got a bit prettier

PY - 2021/7/27

Y1 - 2021/7/27

N2 - We present TOI-1259Ab, a 1.0 Rjup gas giant planet transiting a 0.71 R⊙ K-dwarf on a 3.48 day orbit. The system also contains a bound white dwarf companion TOI-1259B with a projected distance of approximately 1600 AU from the planet host. Transits are observed in nine TESS sector and are 2.7 per cent deep - among the deepest known - making TOI-1259Ab a promising target for atmospheric characterization. Our follow-up radial velocity measurements indicate a variability of semiamplitude K = 71 ms-1, implying a planet mass of 0.44 Mjup. By fitting the spectral energy distribution of the white dwarf we derive a total age of 4.08+1.21-0.53 Gyr for the system. The K-dwarf's light curve reveals a rotational variability with a period of 28 days, which implies a gyrochronology age broadly consistent with the white dwarf's total age.

AB - We present TOI-1259Ab, a 1.0 Rjup gas giant planet transiting a 0.71 R⊙ K-dwarf on a 3.48 day orbit. The system also contains a bound white dwarf companion TOI-1259B with a projected distance of approximately 1600 AU from the planet host. Transits are observed in nine TESS sector and are 2.7 per cent deep - among the deepest known - making TOI-1259Ab a promising target for atmospheric characterization. Our follow-up radial velocity measurements indicate a variability of semiamplitude K = 71 ms-1, implying a planet mass of 0.44 Mjup. By fitting the spectral energy distribution of the white dwarf we derive a total age of 4.08+1.21-0.53 Gyr for the system. The K-dwarf's light curve reveals a rotational variability with a period of 28 days, which implies a gyrochronology age broadly consistent with the white dwarf's total age.

KW - astro-ph.EP

KW - astro-ph.SR

UR - http://www.scopus.com/inward/record.url?scp=85117194641&partnerID=8YFLogxK

U2 - 10.1093/mnras/stab2129

DO - 10.1093/mnras/stab2129

M3 - Article

SN - 0035-8711

VL - 507

SP - 4132

EP - 4148

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion

Abstract

Bibliographical note

Keywords

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