TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236

Tansu Daylan; Kartik Pinglé; Jasmine Wright; Maximilian N. Günther; Keivan G. Stassun; Stephen R. Kane; Andrew Vanderburg; Daniel Jontof-Hutter; Joseph E. Rodriguez; Avi Shporer; Chelsea X. Huang; Thomas Mikal-Evans; Mariona Badenas-Agusti; Karen A. Collins; Benjamin V. Rackham; Samuel N. Quinn; Ryan Cloutier; Kevin I. Collins; Pere Guerra; Eric L. N. Jensen; John F. Kielkopf; Bob Massey; Richard P. Schwarz; David Charbonneau; Jack J. Lissauer; Jonathan M. Irwin; Özgür Baştürk; Benjamin Fulton; Abderahmane Soubkiou; Benkhaldoun Zouhair; Steve B. Howell; Carl Ziegler; César Briceño; Nicholas Law; Andrew W. Mann; Nic Scott; Elise Furlan; David R. Ciardi; Rachel Matson; Coel Hellier; David R. Anderson; R. Paul Butler; Jeffrey D. Crane; Johanna K. Teske; Stephen A. Shectman; Martti H. Kristiansen; Ivan A. Terentev; Hans Martin Schwengeler; George R. Ricker; Roland Vanderspek; Sara Seager; Joshua N. Winn; Jon M. Jenkins; Zachory K. Berta-Thompson; Luke G. Bouma; William Fong; Gabor Furesz; Christopher E. Henze; Edward H. Morgan; Elisa Quintana; Eric B. Ting; Joseph D. Twicken

doi:10.3847/1538-3881/abd73e

TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236

Tansu Daylan^*, Kartik Pinglé, Jasmine Wright, Maximilian N. Günther, Keivan G. Stassun, Stephen R. Kane, Andrew Vanderburg, Daniel Jontof-Hutter, Joseph E. Rodriguez, Avi Shporer, Chelsea X. Huang, Thomas Mikal-Evans, Mariona Badenas-Agusti, Karen A. Collins, Benjamin V. Rackham, Samuel N. Quinn, Ryan Cloutier, Kevin I. Collins, Pere Guerra, Eric L. N. JensenJohn F. Kielkopf, Bob Massey, Richard P. Schwarz, David Charbonneau, Jack J. Lissauer, Jonathan M. Irwin, Özgür Baştürk, Benjamin Fulton, Abderahmane Soubkiou, Benkhaldoun Zouhair, Steve B. Howell, Carl Ziegler, César Briceño, Nicholas Law, Andrew W. Mann, Nic Scott, Elise Furlan, David R. Ciardi, Rachel Matson, Coel Hellier, David R. Anderson, R. Paul Butler, Jeffrey D. Crane, Johanna K. Teske, Stephen A. Shectman, Martti H. Kristiansen, Ivan A. Terentev, Hans Martin Schwengeler, George R. Ricker, Roland Vanderspek, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Zachory K. Berta-Thompson, Luke G. Bouma, William Fong, Gabor Furesz, Christopher E. Henze, Edward H. Morgan, Elisa Quintana, Eric B. Ting, Joseph D. Twicken

^*Corresponding author for this work

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Abstract

We report the discovery and validation of four extrasolar planets hosted by the nearby, bright, Sun-like (G3V) star HD 108236 using data from the Transiting Exoplanet Survey Satellite (TESS). We present transit photometry, reconnaissance, and precise Doppler spectroscopy, as well as high-resolution imaging, to validate the planetary nature of the objects transiting HD 108236, also known as the TESS Object of Interest (TOI) 1233. The innermost planet is a possibly rocky super-Earth with a period of days and has a radius of 1.586 ± 0.098 R ⊕. The outer planets are sub-Neptunes, with potential gaseous envelopes, having radii of R ⊕, 2.72 ± 0.11 R ⊕, and R ⊕ and periods of days, days, and days, respectively. With V and K s magnitudes of 9.2 and 7.6, respectively, the bright host star makes the transiting planets favorable targets for mass measurements and, potentially, for atmospheric characterization via transmission spectroscopy. HD 108236 is the brightest Sun-like star in the visual (V) band known to host four or more transiting exoplanets. The discovered planets span a broad range of planetary radii and equilibrium temperatures and share a common history of insolation from a Sun-like star (R ⋆ = 0.888 ± 0.017 R ⊙, T eff = 5730 ± 50 K), making HD 108236 an exciting, opportune cosmic laboratory for testing models of planet formation and evolution.

Original language	English
Article number	85
Journal	Astrophysical Journal
Volume	161
Issue number	2
Number of pages	21
ISSN	0004-637X
DOIs	https://doi.org/10.3847/1538-3881/abd73e
Publication status	Published - 2021

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Daylan, T., Pinglé, K., Wright, J., Günther, M. N., Stassun, K. G., Kane, S. R., Vanderburg, A., Jontof-Hutter, D., Rodriguez, J. E., Shporer, A., Huang, C. X., Mikal-Evans, T., Badenas-Agusti, M., Collins, K. A., Rackham, B. V., Quinn, S. N., Cloutier, R., Collins, K. I., Guerra, P., ... Twicken, J. D. (2021). TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236. Astrophysical Journal, 161(2), Article 85. https://doi.org/10.3847/1538-3881/abd73e

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title = "TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236",

abstract = "We report the discovery and validation of four extrasolar planets hosted by the nearby, bright, Sun-like (G3V) star HD 108236 using data from the Transiting Exoplanet Survey Satellite (TESS). We present transit photometry, reconnaissance, and precise Doppler spectroscopy, as well as high-resolution imaging, to validate the planetary nature of the objects transiting HD 108236, also known as the TESS Object of Interest (TOI) 1233. The innermost planet is a possibly rocky super-Earth with a period of days and has a radius of 1.586 ± 0.098 R ⊕. The outer planets are sub-Neptunes, with potential gaseous envelopes, having radii of R ⊕, 2.72 ± 0.11 R ⊕, and R ⊕ and periods of days, days, and days, respectively. With V and K s magnitudes of 9.2 and 7.6, respectively, the bright host star makes the transiting planets favorable targets for mass measurements and, potentially, for atmospheric characterization via transmission spectroscopy. HD 108236 is the brightest Sun-like star in the visual (V) band known to host four or more transiting exoplanets. The discovered planets span a broad range of planetary radii and equilibrium temperatures and share a common history of insolation from a Sun-like star (R ⋆ = 0.888 ± 0.017 R ⊙, T eff = 5730 ± 50 K), making HD 108236 an exciting, opportune cosmic laboratory for testing models of planet formation and evolution.",

author = "Tansu Daylan and Kartik Pingl{\'e} and Jasmine Wright and G{\"u}nther, {Maximilian N.} and Stassun, {Keivan G.} and Kane, {Stephen R.} and Andrew Vanderburg and Daniel Jontof-Hutter and Rodriguez, {Joseph E.} and Avi Shporer and Huang, {Chelsea X.} and Thomas Mikal-Evans and Mariona Badenas-Agusti and Collins, {Karen A.} and Rackham, {Benjamin V.} and Quinn, {Samuel N.} and Ryan Cloutier and Collins, {Kevin I.} and Pere Guerra and Jensen, {Eric L. N.} and Kielkopf, {John F.} and Bob Massey and Schwarz, {Richard P.} and David Charbonneau and Lissauer, {Jack J.} and Irwin, {Jonathan M.} and {\"O}zg{\"u}r Ba{\c s}t{\"u}rk and Benjamin Fulton and Abderahmane Soubkiou and Benkhaldoun Zouhair and Howell, {Steve B.} and Carl Ziegler and C{\'e}sar Brice{\~n}o and Nicholas Law and Mann, {Andrew W.} and Nic Scott and Elise Furlan and Ciardi, {David R.} and Rachel Matson and Coel Hellier and Anderson, {David R.} and Butler, {R. Paul} and Crane, {Jeffrey D.} and Teske, {Johanna K.} and Shectman, {Stephen A.} and Kristiansen, {Martti H.} and Terentev, {Ivan A.} and Schwengeler, {Hans Martin} and Ricker, {George R.} and Roland Vanderspek and Sara Seager and Winn, {Joshua N.} and Jenkins, {Jon M.} and Berta-Thompson, {Zachory K.} and Bouma, {Luke G.} and William Fong and Gabor Furesz and Henze, {Christopher E.} and Morgan, {Edward H.} and Elisa Quintana and Ting, {Eric B.} and Twicken, {Joseph D.}",

year = "2021",

doi = "10.3847/1538-3881/abd73e",

language = "English",

volume = "161",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Daylan, T, Pinglé, K, Wright, J, Günther, MN, Stassun, KG, Kane, SR, Vanderburg, A, Jontof-Hutter, D, Rodriguez, JE, Shporer, A, Huang, CX, Mikal-Evans, T, Badenas-Agusti, M, Collins, KA, Rackham, BV, Quinn, SN, Cloutier, R, Collins, KI, Guerra, P, Jensen, ELN, Kielkopf, JF, Massey, B, Schwarz, RP, Charbonneau, D, Lissauer, JJ, Irwin, JM, Baştürk, Ö, Fulton, B, Soubkiou, A, Zouhair, B, Howell, SB, Ziegler, C, Briceño, C, Law, N, Mann, AW, Scott, N, Furlan, E, Ciardi, DR, Matson, R, Hellier, C, Anderson, DR, Butler, RP, Crane, JD, Teske, JK, Shectman, SA, Kristiansen, MH, Terentev, IA, Schwengeler, HM, Ricker, GR, Vanderspek, R, Seager, S, Winn, JN, Jenkins, JM, Berta-Thompson, ZK, Bouma, LG, Fong, W, Furesz, G, Henze, CE, Morgan, EH, Quintana, E, Ting, EB & Twicken, JD 2021, 'TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236', Astrophysical Journal, vol. 161, no. 2, 85. https://doi.org/10.3847/1538-3881/abd73e

TY - JOUR

T1 - TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236

AU - Daylan, Tansu

AU - Pinglé, Kartik

AU - Wright, Jasmine

AU - Günther, Maximilian N.

AU - Stassun, Keivan G.

AU - Kane, Stephen R.

AU - Vanderburg, Andrew

AU - Jontof-Hutter, Daniel

AU - Rodriguez, Joseph E.

AU - Shporer, Avi

AU - Huang, Chelsea X.

AU - Mikal-Evans, Thomas

AU - Badenas-Agusti, Mariona

AU - Collins, Karen A.

AU - Rackham, Benjamin V.

AU - Quinn, Samuel N.

AU - Cloutier, Ryan

AU - Collins, Kevin I.

AU - Guerra, Pere

AU - Jensen, Eric L. N.

AU - Kielkopf, John F.

AU - Massey, Bob

AU - Schwarz, Richard P.

AU - Charbonneau, David

AU - Lissauer, Jack J.

AU - Irwin, Jonathan M.

AU - Baştürk, Özgür

AU - Fulton, Benjamin

AU - Soubkiou, Abderahmane

AU - Zouhair, Benkhaldoun

AU - Howell, Steve B.

AU - Ziegler, Carl

AU - Briceño, César

AU - Law, Nicholas

AU - Mann, Andrew W.

AU - Scott, Nic

AU - Furlan, Elise

AU - Ciardi, David R.

AU - Matson, Rachel

AU - Hellier, Coel

AU - Anderson, David R.

AU - Butler, R. Paul

AU - Crane, Jeffrey D.

AU - Teske, Johanna K.

AU - Shectman, Stephen A.

AU - Kristiansen, Martti H.

AU - Terentev, Ivan A.

AU - Schwengeler, Hans Martin

AU - Ricker, George R.

AU - Vanderspek, Roland

AU - Seager, Sara

AU - Winn, Joshua N.

AU - Jenkins, Jon M.

AU - Berta-Thompson, Zachory K.

AU - Bouma, Luke G.

AU - Fong, William

AU - Furesz, Gabor

AU - Henze, Christopher E.

AU - Morgan, Edward H.

AU - Quintana, Elisa

AU - Ting, Eric B.

AU - Twicken, Joseph D.

PY - 2021

Y1 - 2021

N2 - We report the discovery and validation of four extrasolar planets hosted by the nearby, bright, Sun-like (G3V) star HD 108236 using data from the Transiting Exoplanet Survey Satellite (TESS). We present transit photometry, reconnaissance, and precise Doppler spectroscopy, as well as high-resolution imaging, to validate the planetary nature of the objects transiting HD 108236, also known as the TESS Object of Interest (TOI) 1233. The innermost planet is a possibly rocky super-Earth with a period of days and has a radius of 1.586 ± 0.098 R ⊕. The outer planets are sub-Neptunes, with potential gaseous envelopes, having radii of R ⊕, 2.72 ± 0.11 R ⊕, and R ⊕ and periods of days, days, and days, respectively. With V and K s magnitudes of 9.2 and 7.6, respectively, the bright host star makes the transiting planets favorable targets for mass measurements and, potentially, for atmospheric characterization via transmission spectroscopy. HD 108236 is the brightest Sun-like star in the visual (V) band known to host four or more transiting exoplanets. The discovered planets span a broad range of planetary radii and equilibrium temperatures and share a common history of insolation from a Sun-like star (R ⋆ = 0.888 ± 0.017 R ⊙, T eff = 5730 ± 50 K), making HD 108236 an exciting, opportune cosmic laboratory for testing models of planet formation and evolution.

AB - We report the discovery and validation of four extrasolar planets hosted by the nearby, bright, Sun-like (G3V) star HD 108236 using data from the Transiting Exoplanet Survey Satellite (TESS). We present transit photometry, reconnaissance, and precise Doppler spectroscopy, as well as high-resolution imaging, to validate the planetary nature of the objects transiting HD 108236, also known as the TESS Object of Interest (TOI) 1233. The innermost planet is a possibly rocky super-Earth with a period of days and has a radius of 1.586 ± 0.098 R ⊕. The outer planets are sub-Neptunes, with potential gaseous envelopes, having radii of R ⊕, 2.72 ± 0.11 R ⊕, and R ⊕ and periods of days, days, and days, respectively. With V and K s magnitudes of 9.2 and 7.6, respectively, the bright host star makes the transiting planets favorable targets for mass measurements and, potentially, for atmospheric characterization via transmission spectroscopy. HD 108236 is the brightest Sun-like star in the visual (V) band known to host four or more transiting exoplanets. The discovered planets span a broad range of planetary radii and equilibrium temperatures and share a common history of insolation from a Sun-like star (R ⋆ = 0.888 ± 0.017 R ⊙, T eff = 5730 ± 50 K), making HD 108236 an exciting, opportune cosmic laboratory for testing models of planet formation and evolution.

U2 - 10.3847/1538-3881/abd73e

DO - 10.3847/1538-3881/abd73e

M3 - Journal article

SN - 0004-637X

VL - 161

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 85

ER -

TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236

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