KELT-16b: A Highly Irradiated, Ultra-short Period Hot Jupiter Nearing Tidal Disruption

Thomas E. Oberst; Joseph E. Rodriguez; Knicole D. Colón; Daniel Angerhausen; Allyson Bieryla; Henry Ngo; Daniel J. Stevens; Keivan G. Stassun; B. Scott Gaudi; Joshua Pepper; Kaloyan Penev; Dimitri Mawet; David W. Latham; Tyler M. Heintz; Baffour W. Osei; Karen A. Collins; John F. Kielkopf; Tiffany Visgaitis; Phillip A. Reed; Alejandra Escamilla; Sormeh Yazdi; Kim K. McLeod; Leanne T. Lunsford; Michelle Spencer; Michael D. Joner; Joao Gregorio; Clement Gaillard; Kyle Matt; Mary Thea Dumont; Denise C. Stephens; David H. Cohen; Eric L.N. Jensen; Sebastiano Calchi Novati; Valerio Bozza; Jonathan Labadie-Bartz; Robert J. Siverd; Michael B. Lund; Thomas G. Beatty; Jason D. Eastman; Matthew T. Penny; Mark Manner; Roberto Zambelli; Benjamin J. Fulton; Christopher Stockdale; D. L. DePoy; Jennifer L. Marshall; Richard W. Pogge; Andrew Gould; Mark Trueblood; Patricia Trueblood

doi:10.3847/1538-3881/153/3/97

KELT-16b: A Highly Irradiated, Ultra-short Period Hot Jupiter Nearing Tidal Disruption

Thomas E. Oberst, Joseph E. Rodriguez, Knicole D. Colón, Daniel Angerhausen, Allyson Bieryla, Henry Ngo, Daniel J. Stevens, Keivan G. Stassun, B. Scott Gaudi, Joshua Pepper, Kaloyan Penev, Dimitri Mawet, David W. Latham, Tyler M. Heintz, Baffour W. Osei, Karen A. Collins, John F. Kielkopf, Tiffany Visgaitis, Phillip A. Reed, Alejandra EscamillaSormeh Yazdi, Kim K. McLeod, Leanne T. Lunsford, Michelle Spencer, Michael D. Joner, Joao Gregorio, Clement Gaillard, Kyle Matt, Mary Thea Dumont, Denise C. Stephens, David H. Cohen, Eric L.N. Jensen, Sebastiano Calchi Novati, Valerio Bozza, Jonathan Labadie-Bartz, Robert J. Siverd, Michael B. Lund, Thomas G. Beatty, Jason D. Eastman, Matthew T. Penny, Mark Manner, Roberto Zambelli, Benjamin J. Fulton, Christopher Stockdale, D. L. DePoy, Jennifer L. Marshall, Richard W. Pogge, Andrew Gould, Mark Trueblood, Patricia Trueblood

Astronomy & Astrophysics

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Abstract

We announce the discovery of KELT-16b, a highly irradiated, ultra-short period hot Jupiter transiting the relatively bright (V = 11.7) star TYC 2688-1839-1/KELT-16. A global analysis of the system shows KELT-16 to be an F7V star with K and . The planet is a relatively high-mass inflated gas giant with density g cm^-3, surface gravity , and K. The best-fitting linear ephemeris is and day. KELT-16b joins WASP-18b, -19b, -43b, -103b, and HATS-18b as the only giant transiting planets with P < 1 day. Its ultra-short period and high irradiation make it a benchmark target for atmospheric studies by the Hubble Space Telescope, Spitzer, and eventually the James Webb Space Telescope. For example, as a hotter, higher-mass analog of WASP-43b, KELT-16b may feature an atmospheric temperature-pressure inversion and day-to-night temperature swing extreme enough for TiO to rain out at the terminator. KELT-16b could also join WASP-43b in extending tests of the observed mass-metallicity relation of the solar system gas giants to higher masses. KELT-16b currently orbits at a mere ∼1.7 Roche radii from its host star, and could be tidally disrupted in as little as a few ×10⁵ years (for a stellar tidal quality factor of ). Finally, the likely existence of a widely separated bound stellar companion in the KELT-16 system makes it possible that Kozai-Lidov (KL) oscillations played a role in driving KELT-16b inward to its current precarious orbit.

Original language	English (US)
Article number	97
Journal	Astronomical Journal
Volume	153
Issue number	3
DOIs	https://doi.org/10.3847/1538-3881/153/3/97
State	Published - Mar 2017

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/153/3/97

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Oberst, T. E., Rodriguez, J. E., Colón, K. D., Angerhausen, D., Bieryla, A., Ngo, H., Stevens, D. J., Stassun, K. G., Gaudi, B. S., Pepper, J., Penev, K., Mawet, D., Latham, D. W., Heintz, T. M., Osei, B. W., Collins, K. A., Kielkopf, J. F., Visgaitis, T., Reed, P. A., ... Trueblood, P. (2017). KELT-16b: A Highly Irradiated, Ultra-short Period Hot Jupiter Nearing Tidal Disruption. Astronomical Journal, 153(3), Article 97. https://doi.org/10.3847/1538-3881/153/3/97

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title = "KELT-16b: A Highly Irradiated, Ultra-short Period Hot Jupiter Nearing Tidal Disruption",

abstract = "We announce the discovery of KELT-16b, a highly irradiated, ultra-short period hot Jupiter transiting the relatively bright (V = 11.7) star TYC 2688-1839-1/KELT-16. A global analysis of the system shows KELT-16 to be an F7V star with K and . The planet is a relatively high-mass inflated gas giant with density g cm-3, surface gravity , and K. The best-fitting linear ephemeris is and day. KELT-16b joins WASP-18b, -19b, -43b, -103b, and HATS-18b as the only giant transiting planets with P < 1 day. Its ultra-short period and high irradiation make it a benchmark target for atmospheric studies by the Hubble Space Telescope, Spitzer, and eventually the James Webb Space Telescope. For example, as a hotter, higher-mass analog of WASP-43b, KELT-16b may feature an atmospheric temperature-pressure inversion and day-to-night temperature swing extreme enough for TiO to rain out at the terminator. KELT-16b could also join WASP-43b in extending tests of the observed mass-metallicity relation of the solar system gas giants to higher masses. KELT-16b currently orbits at a mere ∼1.7 Roche radii from its host star, and could be tidally disrupted in as little as a few ×105 years (for a stellar tidal quality factor of ). Finally, the likely existence of a widely separated bound stellar companion in the KELT-16 system makes it possible that Kozai-Lidov (KL) oscillations played a role in driving KELT-16b inward to its current precarious orbit.",

author = "Oberst, {Thomas E.} and Rodriguez, {Joseph E.} and Col{\'o}n, {Knicole D.} and Daniel Angerhausen and Allyson Bieryla and Henry Ngo and Stevens, {Daniel J.} and Stassun, {Keivan G.} and Gaudi, {B. Scott} and Joshua Pepper and Kaloyan Penev and Dimitri Mawet and Latham, {David W.} and Heintz, {Tyler M.} and Osei, {Baffour W.} and Collins, {Karen A.} and Kielkopf, {John F.} and Tiffany Visgaitis and Reed, {Phillip A.} and Alejandra Escamilla and Sormeh Yazdi and McLeod, {Kim K.} and Lunsford, {Leanne T.} and Michelle Spencer and Joner, {Michael D.} and Joao Gregorio and Clement Gaillard and Kyle Matt and Dumont, {Mary Thea} and Stephens, {Denise C.} and Cohen, {David H.} and Jensen, {Eric L.N.} and Novati, {Sebastiano Calchi} and Valerio Bozza and Jonathan Labadie-Bartz and Siverd, {Robert J.} and Lund, {Michael B.} and Beatty, {Thomas G.} and Eastman, {Jason D.} and Penny, {Matthew T.} and Mark Manner and Roberto Zambelli and Fulton, {Benjamin J.} and Christopher Stockdale and DePoy, {D. L.} and Marshall, {Jennifer L.} and Pogge, {Richard W.} and Andrew Gould and Mark Trueblood and Patricia Trueblood",

year = "2017",

month = mar,

doi = "10.3847/1538-3881/153/3/97",

language = "English (US)",

volume = "153",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "3",

}

Oberst, TE, Rodriguez, JE, Colón, KD, Angerhausen, D, Bieryla, A, Ngo, H, Stevens, DJ, Stassun, KG, Gaudi, BS, Pepper, J, Penev, K, Mawet, D, Latham, DW, Heintz, TM, Osei, BW, Collins, KA, Kielkopf, JF, Visgaitis, T, Reed, PA, Escamilla, A, Yazdi, S, McLeod, KK, Lunsford, LT, Spencer, M, Joner, MD, Gregorio, J, Gaillard, C, Matt, K, Dumont, MT, Stephens, DC, Cohen, DH, Jensen, ELN, Novati, SC, Bozza, V, Labadie-Bartz, J, Siverd, RJ, Lund, MB, Beatty, TG, Eastman, JD, Penny, MT, Manner, M, Zambelli, R, Fulton, BJ, Stockdale, C, DePoy, DL, Marshall, JL, Pogge, RW, Gould, A, Trueblood, M & Trueblood, P 2017, 'KELT-16b: A Highly Irradiated, Ultra-short Period Hot Jupiter Nearing Tidal Disruption', Astronomical Journal, vol. 153, no. 3, 97. https://doi.org/10.3847/1538-3881/153/3/97

TY - JOUR

T1 - KELT-16b

T2 - A Highly Irradiated, Ultra-short Period Hot Jupiter Nearing Tidal Disruption

AU - Oberst, Thomas E.

AU - Rodriguez, Joseph E.

AU - Colón, Knicole D.

AU - Angerhausen, Daniel

AU - Bieryla, Allyson

AU - Ngo, Henry

AU - Stevens, Daniel J.

AU - Stassun, Keivan G.

AU - Gaudi, B. Scott

AU - Pepper, Joshua

AU - Penev, Kaloyan

AU - Mawet, Dimitri

AU - Latham, David W.

AU - Heintz, Tyler M.

AU - Osei, Baffour W.

AU - Collins, Karen A.

AU - Kielkopf, John F.

AU - Visgaitis, Tiffany

AU - Reed, Phillip A.

AU - Escamilla, Alejandra

AU - Yazdi, Sormeh

AU - McLeod, Kim K.

AU - Lunsford, Leanne T.

AU - Spencer, Michelle

AU - Joner, Michael D.

AU - Gregorio, Joao

AU - Gaillard, Clement

AU - Matt, Kyle

AU - Dumont, Mary Thea

AU - Stephens, Denise C.

AU - Cohen, David H.

AU - Jensen, Eric L.N.

AU - Novati, Sebastiano Calchi

AU - Bozza, Valerio

AU - Labadie-Bartz, Jonathan

AU - Siverd, Robert J.

AU - Lund, Michael B.

AU - Beatty, Thomas G.

AU - Eastman, Jason D.

AU - Penny, Matthew T.

AU - Manner, Mark

AU - Zambelli, Roberto

AU - Fulton, Benjamin J.

AU - Stockdale, Christopher

AU - DePoy, D. L.

AU - Marshall, Jennifer L.

AU - Pogge, Richard W.

AU - Gould, Andrew

AU - Trueblood, Mark

AU - Trueblood, Patricia

PY - 2017/3

Y1 - 2017/3

N2 - We announce the discovery of KELT-16b, a highly irradiated, ultra-short period hot Jupiter transiting the relatively bright (V = 11.7) star TYC 2688-1839-1/KELT-16. A global analysis of the system shows KELT-16 to be an F7V star with K and . The planet is a relatively high-mass inflated gas giant with density g cm-3, surface gravity , and K. The best-fitting linear ephemeris is and day. KELT-16b joins WASP-18b, -19b, -43b, -103b, and HATS-18b as the only giant transiting planets with P < 1 day. Its ultra-short period and high irradiation make it a benchmark target for atmospheric studies by the Hubble Space Telescope, Spitzer, and eventually the James Webb Space Telescope. For example, as a hotter, higher-mass analog of WASP-43b, KELT-16b may feature an atmospheric temperature-pressure inversion and day-to-night temperature swing extreme enough for TiO to rain out at the terminator. KELT-16b could also join WASP-43b in extending tests of the observed mass-metallicity relation of the solar system gas giants to higher masses. KELT-16b currently orbits at a mere ∼1.7 Roche radii from its host star, and could be tidally disrupted in as little as a few ×105 years (for a stellar tidal quality factor of ). Finally, the likely existence of a widely separated bound stellar companion in the KELT-16 system makes it possible that Kozai-Lidov (KL) oscillations played a role in driving KELT-16b inward to its current precarious orbit.

AB - We announce the discovery of KELT-16b, a highly irradiated, ultra-short period hot Jupiter transiting the relatively bright (V = 11.7) star TYC 2688-1839-1/KELT-16. A global analysis of the system shows KELT-16 to be an F7V star with K and . The planet is a relatively high-mass inflated gas giant with density g cm-3, surface gravity , and K. The best-fitting linear ephemeris is and day. KELT-16b joins WASP-18b, -19b, -43b, -103b, and HATS-18b as the only giant transiting planets with P < 1 day. Its ultra-short period and high irradiation make it a benchmark target for atmospheric studies by the Hubble Space Telescope, Spitzer, and eventually the James Webb Space Telescope. For example, as a hotter, higher-mass analog of WASP-43b, KELT-16b may feature an atmospheric temperature-pressure inversion and day-to-night temperature swing extreme enough for TiO to rain out at the terminator. KELT-16b could also join WASP-43b in extending tests of the observed mass-metallicity relation of the solar system gas giants to higher masses. KELT-16b currently orbits at a mere ∼1.7 Roche radii from its host star, and could be tidally disrupted in as little as a few ×105 years (for a stellar tidal quality factor of ). Finally, the likely existence of a widely separated bound stellar companion in the KELT-16 system makes it possible that Kozai-Lidov (KL) oscillations played a role in driving KELT-16b inward to its current precarious orbit.

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DO - 10.3847/1538-3881/153/3/97

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JO - Astronomical Journal

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KELT-16b: A Highly Irradiated, Ultra-short Period Hot Jupiter Nearing Tidal Disruption

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