TESS Reveals HD 118203 b to be a Transiting Planet

Joshua Pepper; Stephen R. Kane; Joseph E. Rodriguez; Natalie R. Hinkel; Jason D. Eastman; Tansu Daylan; Teo Mocnik; Paul A. Dalba; B. Scott Gaudi; Tara Fetherolf; Keivan G. Stassun; Tiago L. Campante; Tiago L. Campante; Andrew Vanderburg; Daniel Huber; Diego Bossini; Ian Crossfield; Ian Crossfield; Steve B. Howell; Andrew W. Stephens; E. Furlan; George R. Ricker; Roland Vanderspek; David W. Latham; S. Seager; S. Seager; S. Seager; Joshua N. Winn; Jon M. Jenkins; Joseph D. Twicken; Joseph D. Twicken; Mark Rose; Jeffrey C. Smith; Jeffrey C. Smith; Ana Glidden; Ana Glidden; Alan M. Levine; Stephen Rinehart; Karen A. Collins; Andrew W. Mann; Jennifer A. Burt; David J. James; David J. James; Robert J. Siverd; Maximilian N. Günther

doi:10.3847/1538-3881/ab84f2

TESS Reveals HD 118203 b to be a Transiting Planet

Joshua Pepper, Stephen R. Kane, Joseph E. Rodriguez, Natalie R. Hinkel, Jason D. Eastman, Tansu Daylan, Teo Mocnik, Paul A. Dalba, B. Scott Gaudi, Tara Fetherolf, Keivan G. Stassun, Tiago L. Campante, Tiago L. Campante, Andrew Vanderburg, Daniel Huber, Diego Bossini, Ian Crossfield, Ian Crossfield, Steve B. Howell, Andrew W. StephensE. Furlan, George R. Ricker, Roland Vanderspek, David W. Latham, S. Seager, S. Seager, S. Seager, Joshua N. Winn, Jon M. Jenkins, Joseph D. Twicken, Joseph D. Twicken, Mark Rose, Jeffrey C. Smith, Jeffrey C. Smith, Ana Glidden, Ana Glidden, Alan M. Levine, Stephen Rinehart, Karen A. Collins, Andrew W. Mann, Jennifer A. Burt, David J. James, David J. James, Robert J. Siverd, Maximilian N. Günther

Astrophysical Sciences

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17 Scopus citations

Abstract

The exoplanet HD 118203 b, orbiting a bright (V = 8.05) host star, was discovered using the radial velocity method by da Silva et al., but was not previously known to transit. Transiting Exoplanet Survey Satellite (TESS) photometry has revealed that this planet transits its host star. Nine planetary transits were observed by TESS, allowing us to measure the radius of the planet to be 1.136-0.028 +0.029 R J, and to calculate the planet mass to be 2.166-0.079 +0.074 M J. The host star is slightly evolved with an effective temperature of T eff=5683-85 +84 K and a surface gravity of log\,g=3.889 0.018-0.017. With an orbital period of 6.134985-0.000030 +0.000029 days and an eccentricity of 0.314 ± 0.017, the planet occupies a transitional regime between circularized hot Jupiters and more dynamically active planets at longer orbital periods. The host star is among the 10 brightest known to have transiting giant planets, providing opportunities for both planetary atmospheric and asteroseismic studies.

Original language	English (US)
Article number	243
Journal	Astronomical Journal
Volume	159
Issue number	6
DOIs	https://doi.org/10.3847/1538-3881/ab84f2
State	Published - Jun 2020

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

data behind figure

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10.3847/1538-3881/ab84f2

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Pepper, J., Kane, S. R., Rodriguez, J. E., Hinkel, N. R., Eastman, J. D., Daylan, T., Mocnik, T., Dalba, P. A., Gaudi, B. S., Fetherolf, T., Stassun, K. G., Campante, T. L., Campante, T. L., Vanderburg, A., Huber, D., Bossini, D., Crossfield, I., Crossfield, I., Howell, S. B., ... Günther, M. N. (2020). TESS Reveals HD 118203 b to be a Transiting Planet. Astronomical Journal, 159(6), Article 243. https://doi.org/10.3847/1538-3881/ab84f2

@article{f25a1bb3f932450c82f23205ffce62fe,

title = "TESS Reveals HD 118203 b to be a Transiting Planet",

abstract = "The exoplanet HD 118203 b, orbiting a bright (V = 8.05) host star, was discovered using the radial velocity method by da Silva et al., but was not previously known to transit. Transiting Exoplanet Survey Satellite (TESS) photometry has revealed that this planet transits its host star. Nine planetary transits were observed by TESS, allowing us to measure the radius of the planet to be 1.136-0.028 +0.029 R J, and to calculate the planet mass to be 2.166-0.079 +0.074 M J. The host star is slightly evolved with an effective temperature of T eff=5683-85 +84 K and a surface gravity of log\,g=3.889 0.018-0.017. With an orbital period of 6.134985-0.000030 +0.000029 days and an eccentricity of 0.314 ± 0.017, the planet occupies a transitional regime between circularized hot Jupiters and more dynamically active planets at longer orbital periods. The host star is among the 10 brightest known to have transiting giant planets, providing opportunities for both planetary atmospheric and asteroseismic studies.",

keywords = "data behind figure",

author = "Joshua Pepper and Kane, {Stephen R.} and Rodriguez, {Joseph E.} and Hinkel, {Natalie R.} and Eastman, {Jason D.} and Tansu Daylan and Teo Mocnik and Dalba, {Paul A.} and Gaudi, {B. Scott} and Tara Fetherolf and Stassun, {Keivan G.} and Campante, {Tiago L.} and Campante, {Tiago L.} and Andrew Vanderburg and Daniel Huber and Diego Bossini and Ian Crossfield and Ian Crossfield and Howell, {Steve B.} and Stephens, {Andrew W.} and E. Furlan and Ricker, {George R.} and Roland Vanderspek and Latham, {David W.} and S. Seager and S. Seager and S. Seager and Winn, {Joshua N.} and Jenkins, {Jon M.} and Twicken, {Joseph D.} and Twicken, {Joseph D.} and Mark Rose and Smith, {Jeffrey C.} and Smith, {Jeffrey C.} and Ana Glidden and Ana Glidden and Levine, {Alan M.} and Stephen Rinehart and Collins, {Karen A.} and Mann, {Andrew W.} and Burt, {Jennifer A.} and James, {David J.} and James, {David J.} and Siverd, {Robert J.} and G{\"u}nther, {Maximilian N.}",

year = "2020",

month = jun,

doi = "10.3847/1538-3881/ab84f2",

language = "English (US)",

volume = "159",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "6",

}

Pepper, J, Kane, SR, Rodriguez, JE, Hinkel, NR, Eastman, JD, Daylan, T, Mocnik, T, Dalba, PA, Gaudi, BS, Fetherolf, T, Stassun, KG, Campante, TL, Campante, TL, Vanderburg, A, Huber, D, Bossini, D, Crossfield, I, Crossfield, I, Howell, SB, Stephens, AW, Furlan, E, Ricker, GR, Vanderspek, R, Latham, DW, Seager, S, Seager, S, Seager, S, Winn, JN, Jenkins, JM, Twicken, JD, Twicken, JD, Rose, M, Smith, JC, Smith, JC, Glidden, A, Glidden, A, Levine, AM, Rinehart, S, Collins, KA, Mann, AW, Burt, JA, James, DJ, James, DJ, Siverd, RJ & Günther, MN 2020, 'TESS Reveals HD 118203 b to be a Transiting Planet', Astronomical Journal, vol. 159, no. 6, 243. https://doi.org/10.3847/1538-3881/ab84f2

TY - JOUR

T1 - TESS Reveals HD 118203 b to be a Transiting Planet

AU - Pepper, Joshua

AU - Kane, Stephen R.

AU - Rodriguez, Joseph E.

AU - Hinkel, Natalie R.

AU - Eastman, Jason D.

AU - Daylan, Tansu

AU - Mocnik, Teo

AU - Dalba, Paul A.

AU - Gaudi, B. Scott

AU - Fetherolf, Tara

AU - Stassun, Keivan G.

AU - Campante, Tiago L.

AU - Vanderburg, Andrew

AU - Huber, Daniel

AU - Bossini, Diego

AU - Crossfield, Ian

AU - Howell, Steve B.

AU - Stephens, Andrew W.

AU - Furlan, E.

AU - Ricker, George R.

AU - Vanderspek, Roland

AU - Latham, David W.

AU - Seager, S.

AU - Winn, Joshua N.

AU - Jenkins, Jon M.

AU - Twicken, Joseph D.

AU - Rose, Mark

AU - Smith, Jeffrey C.

AU - Glidden, Ana

AU - Levine, Alan M.

AU - Rinehart, Stephen

AU - Collins, Karen A.

AU - Mann, Andrew W.

AU - Burt, Jennifer A.

AU - James, David J.

AU - Siverd, Robert J.

AU - Günther, Maximilian N.

PY - 2020/6

Y1 - 2020/6

N2 - The exoplanet HD 118203 b, orbiting a bright (V = 8.05) host star, was discovered using the radial velocity method by da Silva et al., but was not previously known to transit. Transiting Exoplanet Survey Satellite (TESS) photometry has revealed that this planet transits its host star. Nine planetary transits were observed by TESS, allowing us to measure the radius of the planet to be 1.136-0.028 +0.029 R J, and to calculate the planet mass to be 2.166-0.079 +0.074 M J. The host star is slightly evolved with an effective temperature of T eff=5683-85 +84 K and a surface gravity of log\,g=3.889 0.018-0.017. With an orbital period of 6.134985-0.000030 +0.000029 days and an eccentricity of 0.314 ± 0.017, the planet occupies a transitional regime between circularized hot Jupiters and more dynamically active planets at longer orbital periods. The host star is among the 10 brightest known to have transiting giant planets, providing opportunities for both planetary atmospheric and asteroseismic studies.

AB - The exoplanet HD 118203 b, orbiting a bright (V = 8.05) host star, was discovered using the radial velocity method by da Silva et al., but was not previously known to transit. Transiting Exoplanet Survey Satellite (TESS) photometry has revealed that this planet transits its host star. Nine planetary transits were observed by TESS, allowing us to measure the radius of the planet to be 1.136-0.028 +0.029 R J, and to calculate the planet mass to be 2.166-0.079 +0.074 M J. The host star is slightly evolved with an effective temperature of T eff=5683-85 +84 K and a surface gravity of log\,g=3.889 0.018-0.017. With an orbital period of 6.134985-0.000030 +0.000029 days and an eccentricity of 0.314 ± 0.017, the planet occupies a transitional regime between circularized hot Jupiters and more dynamically active planets at longer orbital periods. The host star is among the 10 brightest known to have transiting giant planets, providing opportunities for both planetary atmospheric and asteroseismic studies.

KW - data behind figure

UR - http://www.scopus.com/inward/record.url?scp=85086842552&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85086842552&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/ab84f2

DO - 10.3847/1538-3881/ab84f2

M3 - Article

AN - SCOPUS:85086842552

SN - 0004-6256

VL - 159

JO - Astronomical Journal

JF - Astronomical Journal

IS - 6

M1 - 243

ER -

TESS Reveals HD 118203 b to be a Transiting Planet

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