A Transiting Warm Giant Planet around the Young Active Star TOI-201

Melissa J. Hobson; Rafael Brahm; Andrés Jordán; Nestor Espinoza; Diana Kossakowski; Thomas Henning; Felipe Rojas; Martin Schlecker; Paula Sarkis; Trifon Trifonov; Daniel Thorngren; Avraham Binnenfeld; Sahar Shahaf; Shay Zucker; George R. Ricker; David W. Latham; S. Seager; Joshua N. Winn; Jon M. Jenkins; Brett Addison; François Bouchy; Brendan P. Bowler; Joshua T. Briegal; Edward M. Bryant; Karen A. Collins; Tansu Daylan; Nolan Grieves; Jonathan Horner; Chelsea Huang; Stephen R. Kane; John Kielkopf; Brian McLean; Matthew W. Mengel; Louise D. Nielsen; Jack Okumura; Matias Jones; Peter Plavchan; Avi Shporer; Alexis M.S. Smith; Rosanna Tilbrook; C. G. Tinney; Joseph D. Twicken; Stéphane Udry; Nicolas Unger; Richard West; Robert A. Wittenmyer; Bill Wohler; Pascal Torres; Duncan J. Wright

doi:10.3847/1538-3881/abeaa1

A Transiting Warm Giant Planet around the Young Active Star TOI-201

Melissa J. Hobson, Rafael Brahm, Andrés Jordán, Nestor Espinoza, Diana Kossakowski, Thomas Henning, Felipe Rojas, Martin Schlecker, Paula Sarkis, Trifon Trifonov, Daniel Thorngren, Avraham Binnenfeld, Sahar Shahaf, Shay Zucker, George R. Ricker, David W. Latham, S. Seager, Joshua N. Winn, Jon M. Jenkins, Brett AddisonFrançois Bouchy, Brendan P. Bowler, Joshua T. Briegal, Edward M. Bryant, Karen A. Collins, Tansu Daylan, Nolan Grieves, Jonathan Horner, Chelsea Huang, Stephen R. Kane, John Kielkopf, Brian McLean, Matthew W. Mengel, Louise D. Nielsen, Jack Okumura, Matias Jones, Peter Plavchan, Avi Shporer, Alexis M.S. Smith, Rosanna Tilbrook, C. G. Tinney, Joseph D. Twicken, Stéphane Udry, Nicolas Unger, Richard West, Robert A. Wittenmyer, Bill Wohler, Pascal Torres, Duncan J. Wright

Astrophysical Sciences

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26 Scopus citations

Abstract

We present the confirmation of the eccentric warm giant planet TOI-201 b, first identified as a candidate in Transiting Exoplanet Survey Satellite photometry (Sectors 1-8, 10-13, and 27-28) and confirmed using ground-based photometry from Next Generation Transit Survey and radial velocities from FEROS, HARPS, CORALIE, and Minerva-Australis. TOI-201 b orbits a young (0.87-0.49+0.46, Gyr) and bright (V = 9.07 mag) F-type star with a 52.9781 day period. The planet has a mass of 0.42-0.03+0.05, MJ, a radius of 1.008-0.015+0.012, RJ, and an orbital eccentricity of 0.28-0.09+0.06; it appears to still be undergoing fairly rapid cooling, as expected given the youth of the host star. The star also shows long-term variability in both the radial velocities and several activity indicators, which we attribute to stellar activity. The discovery and characterization of warm giant planets such as TOI-201 b are important for constraining formation and evolution theories for giant planets.

Original language	English (US)
Article number	235
Journal	Astronomical Journal
Volume	161
Issue number	5
DOIs	https://doi.org/10.3847/1538-3881/abeaa1
State	Published - May 2021

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Hobson, M. J., Brahm, R., Jordán, A., Espinoza, N., Kossakowski, D., Henning, T., Rojas, F., Schlecker, M., Sarkis, P., Trifonov, T., Thorngren, D., Binnenfeld, A., Shahaf, S., Zucker, S., Ricker, G. R., Latham, D. W., Seager, S., Winn, J. N., Jenkins, J. M., ... Wright, D. J. (2021). A Transiting Warm Giant Planet around the Young Active Star TOI-201. Astronomical Journal, 161(5), Article 235. https://doi.org/10.3847/1538-3881/abeaa1

@article{f5099da48e62433d96d71614093c2ff1,

title = "A Transiting Warm Giant Planet around the Young Active Star TOI-201",

abstract = "We present the confirmation of the eccentric warm giant planet TOI-201 b, first identified as a candidate in Transiting Exoplanet Survey Satellite photometry (Sectors 1-8, 10-13, and 27-28) and confirmed using ground-based photometry from Next Generation Transit Survey and radial velocities from FEROS, HARPS, CORALIE, and Minerva-Australis. TOI-201 b orbits a young (0.87-0.49+0.46, Gyr) and bright (V = 9.07 mag) F-type star with a 52.9781 day period. The planet has a mass of 0.42-0.03+0.05, MJ, a radius of 1.008-0.015+0.012, RJ, and an orbital eccentricity of 0.28-0.09+0.06; it appears to still be undergoing fairly rapid cooling, as expected given the youth of the host star. The star also shows long-term variability in both the radial velocities and several activity indicators, which we attribute to stellar activity. The discovery and characterization of warm giant planets such as TOI-201 b are important for constraining formation and evolution theories for giant planets.",

author = "Hobson, {Melissa J.} and Rafael Brahm and Andr{\'e}s Jord{\'a}n and Nestor Espinoza and Diana Kossakowski and Thomas Henning and Felipe Rojas and Martin Schlecker and Paula Sarkis and Trifon Trifonov and Daniel Thorngren and Avraham Binnenfeld and Sahar Shahaf and Shay Zucker and Ricker, {George R.} and Latham, {David W.} and S. Seager and Winn, {Joshua N.} and Jenkins, {Jon M.} and Brett Addison and Fran{\c c}ois Bouchy and Bowler, {Brendan P.} and Briegal, {Joshua T.} and Bryant, {Edward M.} and Collins, {Karen A.} and Tansu Daylan and Nolan Grieves and Jonathan Horner and Chelsea Huang and Kane, {Stephen R.} and John Kielkopf and Brian McLean and Mengel, {Matthew W.} and Nielsen, {Louise D.} and Jack Okumura and Matias Jones and Peter Plavchan and Avi Shporer and Smith, {Alexis M.S.} and Rosanna Tilbrook and Tinney, {C. G.} and Twicken, {Joseph D.} and St{\'e}phane Udry and Nicolas Unger and Richard West and Wittenmyer, {Robert A.} and Bill Wohler and Pascal Torres and Wright, {Duncan J.}",

year = "2021",

month = may,

doi = "10.3847/1538-3881/abeaa1",

language = "English (US)",

volume = "161",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "5",

}

Hobson, MJ, Brahm, R, Jordán, A, Espinoza, N, Kossakowski, D, Henning, T, Rojas, F, Schlecker, M, Sarkis, P, Trifonov, T, Thorngren, D, Binnenfeld, A, Shahaf, S, Zucker, S, Ricker, GR, Latham, DW, Seager, S, Winn, JN, Jenkins, JM, Addison, B, Bouchy, F, Bowler, BP, Briegal, JT, Bryant, EM, Collins, KA, Daylan, T, Grieves, N, Horner, J, Huang, C, Kane, SR, Kielkopf, J, McLean, B, Mengel, MW, Nielsen, LD, Okumura, J, Jones, M, Plavchan, P, Shporer, A, Smith, AMS, Tilbrook, R, Tinney, CG, Twicken, JD, Udry, S, Unger, N, West, R, Wittenmyer, RA, Wohler, B, Torres, P & Wright, DJ 2021, 'A Transiting Warm Giant Planet around the Young Active Star TOI-201', Astronomical Journal, vol. 161, no. 5, 235. https://doi.org/10.3847/1538-3881/abeaa1

TY - JOUR

T1 - A Transiting Warm Giant Planet around the Young Active Star TOI-201

AU - Hobson, Melissa J.

AU - Brahm, Rafael

AU - Jordán, Andrés

AU - Espinoza, Nestor

AU - Kossakowski, Diana

AU - Henning, Thomas

AU - Rojas, Felipe

AU - Schlecker, Martin

AU - Sarkis, Paula

AU - Trifonov, Trifon

AU - Thorngren, Daniel

AU - Binnenfeld, Avraham

AU - Shahaf, Sahar

AU - Zucker, Shay

AU - Ricker, George R.

AU - Latham, David W.

AU - Seager, S.

AU - Winn, Joshua N.

AU - Jenkins, Jon M.

AU - Addison, Brett

AU - Bouchy, François

AU - Bowler, Brendan P.

AU - Briegal, Joshua T.

AU - Bryant, Edward M.

AU - Collins, Karen A.

AU - Daylan, Tansu

AU - Grieves, Nolan

AU - Horner, Jonathan

AU - Huang, Chelsea

AU - Kane, Stephen R.

AU - Kielkopf, John

AU - McLean, Brian

AU - Mengel, Matthew W.

AU - Nielsen, Louise D.

AU - Okumura, Jack

AU - Jones, Matias

AU - Plavchan, Peter

AU - Shporer, Avi

AU - Smith, Alexis M.S.

AU - Tilbrook, Rosanna

AU - Tinney, C. G.

AU - Twicken, Joseph D.

AU - Udry, Stéphane

AU - Unger, Nicolas

AU - West, Richard

AU - Wittenmyer, Robert A.

AU - Wohler, Bill

AU - Torres, Pascal

AU - Wright, Duncan J.

PY - 2021/5

Y1 - 2021/5

N2 - We present the confirmation of the eccentric warm giant planet TOI-201 b, first identified as a candidate in Transiting Exoplanet Survey Satellite photometry (Sectors 1-8, 10-13, and 27-28) and confirmed using ground-based photometry from Next Generation Transit Survey and radial velocities from FEROS, HARPS, CORALIE, and Minerva-Australis. TOI-201 b orbits a young (0.87-0.49+0.46, Gyr) and bright (V = 9.07 mag) F-type star with a 52.9781 day period. The planet has a mass of 0.42-0.03+0.05, MJ, a radius of 1.008-0.015+0.012, RJ, and an orbital eccentricity of 0.28-0.09+0.06; it appears to still be undergoing fairly rapid cooling, as expected given the youth of the host star. The star also shows long-term variability in both the radial velocities and several activity indicators, which we attribute to stellar activity. The discovery and characterization of warm giant planets such as TOI-201 b are important for constraining formation and evolution theories for giant planets.

AB - We present the confirmation of the eccentric warm giant planet TOI-201 b, first identified as a candidate in Transiting Exoplanet Survey Satellite photometry (Sectors 1-8, 10-13, and 27-28) and confirmed using ground-based photometry from Next Generation Transit Survey and radial velocities from FEROS, HARPS, CORALIE, and Minerva-Australis. TOI-201 b orbits a young (0.87-0.49+0.46, Gyr) and bright (V = 9.07 mag) F-type star with a 52.9781 day period. The planet has a mass of 0.42-0.03+0.05, MJ, a radius of 1.008-0.015+0.012, RJ, and an orbital eccentricity of 0.28-0.09+0.06; it appears to still be undergoing fairly rapid cooling, as expected given the youth of the host star. The star also shows long-term variability in both the radial velocities and several activity indicators, which we attribute to stellar activity. The discovery and characterization of warm giant planets such as TOI-201 b are important for constraining formation and evolution theories for giant planets.

UR - http://www.scopus.com/inward/record.url?scp=85105378486&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85105378486&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/abeaa1

DO - 10.3847/1538-3881/abeaa1

M3 - Article

AN - SCOPUS:85105378486

SN - 0004-6256

VL - 161

JO - Astronomical Journal

JF - Astronomical Journal

IS - 5

M1 - 235

ER -

A Transiting Warm Giant Planet around the Young Active Star TOI-201

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