KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones

Daniel Johns; Phillip A. Reed; Joseph E. Rodriguez; Joshua Pepper; Keivan G. Stassun; Kaloyan Penev; B. Scott Gaudi; Jonathan Labadie-Bartz; Benjamin J. Fulton; Samuel N. Quinn; Jason D. Eastman; David R. Ciardi; Lea Hirsch; Daniel J. Stevens; Catherine P. Stevens; Thomas E. Oberst; David H. Cohen; Eric L.N. Jensen; Paul Benni; Steven Villanueva; Gabriel Murawski; Allyson Bieryla; David W. Latham; Siegfried Vanaverbeke; Franky Dubois; Steve Rau; Ludwig Logie; Ryan F. Rauenzahn; Robert A. Wittenmyer; Roberto Zambelli; Daniel Bayliss; Thomas G. Beatty; Karen A. Collins; Knicole D. Colón; Ivan A. Curtis; Phil Evans; Joao Gregorio; David James; D. L. Depoy; Marshall C. Johnson; Michael D. Joner; David H. Kasper; Somayeh Khakpash; John F. Kielkopf; Rudolf B. Kuhn; Michael B. Lund; Mark Manner; Jennifer L. Marshall; Kim K. McLeod; Matthew T. Penny; Howard Relles; Robert J. Siverd; Denise C. Stephens; Chris Stockdale; Thiam Guan Tan; Mark Trueblood; Pat Trueblood; Xinyu Yao

doi:10.3847/1538-3881/ab24c7

KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones

Daniel Johns, Phillip A. Reed, Joseph E. Rodriguez, Joshua Pepper, Keivan G. Stassun, Kaloyan Penev, B. Scott Gaudi, Jonathan Labadie-Bartz, Benjamin J. Fulton, Samuel N. Quinn, Jason D. Eastman, David R. Ciardi, Lea Hirsch, Daniel J. Stevens, Catherine P. Stevens, Thomas E. Oberst, David H. Cohen, Eric L.N. Jensen, Paul Benni, Steven VillanuevaGabriel Murawski, Allyson Bieryla, David W. Latham, Siegfried Vanaverbeke, Franky Dubois, Steve Rau, Ludwig Logie, Ryan F. Rauenzahn, Robert A. Wittenmyer, Roberto Zambelli, Daniel Bayliss, Thomas G. Beatty, Karen A. Collins, Knicole D. Colón, Ivan A. Curtis, Phil Evans, Joao Gregorio, David James, D. L. Depoy, Marshall C. Johnson, Michael D. Joner, David H. Kasper, Somayeh Khakpash, John F. Kielkopf, Rudolf B. Kuhn, Michael B. Lund, Mark Manner, Jennifer L. Marshall, Kim K. McLeod, Matthew T. Penny, Howard Relles, Robert J. Siverd, Denise C. Stephens, Chris Stockdale, Thiam Guan Tan, Mark Trueblood, Pat Trueblood, Xinyu Yao

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Abstract

We announce the discovery of KELT-23Ab, a hot Jupiter transiting the relatively bright (V = 10.3) star BD+66 911 (TYC 4187-996-1), and characterize the system using follow-up photometry and spectroscopy. A global fit to the system yields host-star properties of K, , , , (cgs), and . KELT-23Ab is a hot Jupiter with a mass of , radius of , and density of g cm^-3. Intense insolation flux from the star has likely caused KELT-23Ab to become inflated. The time of inferior conjunction is and the orbital period is days. There is strong evidence that KELT-23A is a member of a long-period binary star system with a less luminous companion, and due to tidal interactions, the planet is likely to spiral into its host within roughly a gigayear. This system has one of the highest positive ecliptic latitudes of all transiting planet hosts known to date, placing it near the Transiting Planet Survey Satellite and James Webb Space Telescope continuous viewing zones. Thus we expect it to be an excellent candidate for long-term monitoring and follow up with these facilities.

Original language	English
Article number	78
Journal	Astronomical Journal
Volume	158
Issue number	2
DOIs	https://doi.org/10.3847/1538-3881/ab24c7
Publication status	Published - 2019

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Johns, D., Reed, P. A., Rodriguez, J. E., Pepper, J., Stassun, K. G., Penev, K., Gaudi, B. S., Labadie-Bartz, J., Fulton, B. J., Quinn, S. N., Eastman, J. D., Ciardi, D. R., Hirsch, L., Stevens, D. J., Stevens, C. P., Oberst, T. E., Cohen, D. H., Jensen, E. L. N., Benni, P., ... Yao, X. (2019). KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones. Astronomical Journal, 158(2), Article 78. https://doi.org/10.3847/1538-3881/ab24c7

@article{379034303c7b4cd59cdf06487b9653c1,

title = "KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones",

abstract = "We announce the discovery of KELT-23Ab, a hot Jupiter transiting the relatively bright (V = 10.3) star BD+66 911 (TYC 4187-996-1), and characterize the system using follow-up photometry and spectroscopy. A global fit to the system yields host-star properties of K, , , , (cgs), and . KELT-23Ab is a hot Jupiter with a mass of , radius of , and density of g cm-3. Intense insolation flux from the star has likely caused KELT-23Ab to become inflated. The time of inferior conjunction is and the orbital period is days. There is strong evidence that KELT-23A is a member of a long-period binary star system with a less luminous companion, and due to tidal interactions, the planet is likely to spiral into its host within roughly a gigayear. This system has one of the highest positive ecliptic latitudes of all transiting planet hosts known to date, placing it near the Transiting Planet Survey Satellite and James Webb Space Telescope continuous viewing zones. Thus we expect it to be an excellent candidate for long-term monitoring and follow up with these facilities.",

keywords = "methods: observational, planets and satellites: detection, planets and satellites: gaseous planets, techniques: photometric, techniques: radial velocities, techniques: spectroscopic",

author = "Daniel Johns and Reed, {Phillip A.} and Rodriguez, {Joseph E.} and Joshua Pepper and Stassun, {Keivan G.} and Kaloyan Penev and Gaudi, {B. Scott} and Jonathan Labadie-Bartz and Fulton, {Benjamin J.} and Quinn, {Samuel N.} and Eastman, {Jason D.} and Ciardi, {David R.} and Lea Hirsch and Stevens, {Daniel J.} and Stevens, {Catherine P.} and Oberst, {Thomas E.} and Cohen, {David H.} and Jensen, {Eric L.N.} and Paul Benni and Steven Villanueva and Gabriel Murawski and Allyson Bieryla and Latham, {David W.} and Siegfried Vanaverbeke and Franky Dubois and Steve Rau and Ludwig Logie and Rauenzahn, {Ryan F.} and Wittenmyer, {Robert A.} and Roberto Zambelli and Daniel Bayliss and Beatty, {Thomas G.} and Collins, {Karen A.} and Col{\'o}n, {Knicole D.} and Curtis, {Ivan A.} and Phil Evans and Joao Gregorio and David James and Depoy, {D. L.} and Johnson, {Marshall C.} and Joner, {Michael D.} and Kasper, {David H.} and Somayeh Khakpash and Kielkopf, {John F.} and Kuhn, {Rudolf B.} and Lund, {Michael B.} and Mark Manner and Marshall, {Jennifer L.} and McLeod, {Kim K.} and Penny, {Matthew T.} and Howard Relles and Siverd, {Robert J.} and Stephens, {Denise C.} and Chris Stockdale and Tan, {Thiam Guan} and Mark Trueblood and Pat Trueblood and Xinyu Yao",

year = "2019",

doi = "10.3847/1538-3881/ab24c7",

language = "English",

volume = "158",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "2",

}

Johns, D, Reed, PA, Rodriguez, JE, Pepper, J, Stassun, KG, Penev, K, Gaudi, BS, Labadie-Bartz, J, Fulton, BJ, Quinn, SN, Eastman, JD, Ciardi, DR, Hirsch, L, Stevens, DJ, Stevens, CP, Oberst, TE, Cohen, DH, Jensen, ELN, Benni, P, Villanueva, S, Murawski, G, Bieryla, A, Latham, DW, Vanaverbeke, S, Dubois, F, Rau, S, Logie, L, Rauenzahn, RF, Wittenmyer, RA, Zambelli, R, Bayliss, D, Beatty, TG, Collins, KA, Colón, KD, Curtis, IA, Evans, P, Gregorio, J, James, D, Depoy, DL, Johnson, MC, Joner, MD, Kasper, DH, Khakpash, S, Kielkopf, JF, Kuhn, RB, Lund, MB, Manner, M, Marshall, JL, McLeod, KK, Penny, MT, Relles, H, Siverd, RJ, Stephens, DC, Stockdale, C, Tan, TG, Trueblood, M, Trueblood, P & Yao, X 2019, 'KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones', Astronomical Journal, vol. 158, no. 2, 78. https://doi.org/10.3847/1538-3881/ab24c7

TY - JOUR

T1 - KELT-23Ab

T2 - A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones

AU - Johns, Daniel

AU - Reed, Phillip A.

AU - Rodriguez, Joseph E.

AU - Pepper, Joshua

AU - Stassun, Keivan G.

AU - Penev, Kaloyan

AU - Gaudi, B. Scott

AU - Labadie-Bartz, Jonathan

AU - Fulton, Benjamin J.

AU - Quinn, Samuel N.

AU - Eastman, Jason D.

AU - Ciardi, David R.

AU - Hirsch, Lea

AU - Stevens, Daniel J.

AU - Stevens, Catherine P.

AU - Oberst, Thomas E.

AU - Cohen, David H.

AU - Jensen, Eric L.N.

AU - Benni, Paul

AU - Villanueva, Steven

AU - Murawski, Gabriel

AU - Bieryla, Allyson

AU - Latham, David W.

AU - Vanaverbeke, Siegfried

AU - Dubois, Franky

AU - Rau, Steve

AU - Logie, Ludwig

AU - Rauenzahn, Ryan F.

AU - Wittenmyer, Robert A.

AU - Zambelli, Roberto

AU - Bayliss, Daniel

AU - Beatty, Thomas G.

AU - Collins, Karen A.

AU - Colón, Knicole D.

AU - Curtis, Ivan A.

AU - Evans, Phil

AU - Gregorio, Joao

AU - James, David

AU - Depoy, D. L.

AU - Johnson, Marshall C.

AU - Joner, Michael D.

AU - Kasper, David H.

AU - Khakpash, Somayeh

AU - Kielkopf, John F.

AU - Kuhn, Rudolf B.

AU - Lund, Michael B.

AU - Manner, Mark

AU - Marshall, Jennifer L.

AU - McLeod, Kim K.

AU - Penny, Matthew T.

AU - Relles, Howard

AU - Siverd, Robert J.

AU - Stephens, Denise C.

AU - Stockdale, Chris

AU - Tan, Thiam Guan

AU - Trueblood, Mark

AU - Trueblood, Pat

AU - Yao, Xinyu

PY - 2019

Y1 - 2019

N2 - We announce the discovery of KELT-23Ab, a hot Jupiter transiting the relatively bright (V = 10.3) star BD+66 911 (TYC 4187-996-1), and characterize the system using follow-up photometry and spectroscopy. A global fit to the system yields host-star properties of K, , , , (cgs), and . KELT-23Ab is a hot Jupiter with a mass of , radius of , and density of g cm-3. Intense insolation flux from the star has likely caused KELT-23Ab to become inflated. The time of inferior conjunction is and the orbital period is days. There is strong evidence that KELT-23A is a member of a long-period binary star system with a less luminous companion, and due to tidal interactions, the planet is likely to spiral into its host within roughly a gigayear. This system has one of the highest positive ecliptic latitudes of all transiting planet hosts known to date, placing it near the Transiting Planet Survey Satellite and James Webb Space Telescope continuous viewing zones. Thus we expect it to be an excellent candidate for long-term monitoring and follow up with these facilities.

AB - We announce the discovery of KELT-23Ab, a hot Jupiter transiting the relatively bright (V = 10.3) star BD+66 911 (TYC 4187-996-1), and characterize the system using follow-up photometry and spectroscopy. A global fit to the system yields host-star properties of K, , , , (cgs), and . KELT-23Ab is a hot Jupiter with a mass of , radius of , and density of g cm-3. Intense insolation flux from the star has likely caused KELT-23Ab to become inflated. The time of inferior conjunction is and the orbital period is days. There is strong evidence that KELT-23A is a member of a long-period binary star system with a less luminous companion, and due to tidal interactions, the planet is likely to spiral into its host within roughly a gigayear. This system has one of the highest positive ecliptic latitudes of all transiting planet hosts known to date, placing it near the Transiting Planet Survey Satellite and James Webb Space Telescope continuous viewing zones. Thus we expect it to be an excellent candidate for long-term monitoring and follow up with these facilities.

KW - methods: observational

KW - planets and satellites: detection

KW - planets and satellites: gaseous planets

KW - techniques: photometric

KW - techniques: radial velocities

KW - techniques: spectroscopic

UR - http://www.scopus.com/inward/record.url?scp=85072051386&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/ab24c7

DO - 10.3847/1538-3881/ab24c7

M3 - Article

SN - 0004-6256

VL - 158

JO - Astronomical Journal

JF - Astronomical Journal

IS - 2

M1 - 78

ER -

KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones

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