KELT-14b and KELT-15b: an independent discovery of WASP-122b and a new hot Jupiter

Joseph E. Rodriguez; Knicole D. Colón; Keivan G. Stassun; Duncan Wright; Phillip A. Cargile; Daniel Bayliss; Joshua Pepper; Karen A. Collins; Rudolf B. Kuhn; Michael B. Lund; Robert J. Siverd; George Zhou; B. Scott Gaudi; C. G. Tinney; Kaloyan Penev; T. G. Tan; Chris Stockdale; Ivan A. Curtis; David James; Stephane Udry; Damien Segransan; Allyson Bieryla; David W. Latham; Thomas G. Beatty; Jason D. Eastman; Gordon Myers; Jonathan Bartz; Joao Bento; Eric L. N. Jensen; Thomas E. Oberst; Daniel J. Stevens

doi:10.3847/0004-6256/151/6/138

KELT-14b and KELT-15b: an independent discovery of WASP-122b and a new hot Jupiter

Joseph E. Rodriguez, Knicole D. Colón, Keivan G. Stassun, Duncan Wright, Phillip A. Cargile, Daniel Bayliss, Joshua Pepper, Karen A. Collins, Rudolf B. Kuhn, Michael B. Lund, Robert J. Siverd, George Zhou, B. Scott Gaudi, C. G. Tinney, Kaloyan Penev, T. G. Tan, Chris Stockdale, Ivan A. Curtis, David James, Stephane UdryDamien Segransan, Allyson Bieryla, David W. Latham, Thomas G. Beatty, Jason D. Eastman, Gordon Myers, Jonathan Bartz, Joao Bento, Eric L. N. Jensen, Thomas E. Oberst, Daniel J. Stevens

Research output: Contribution to journal › Article › peer-review

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Abstract

We report the discovery of KELT-14b and KELT-15b, two hot Jupiters from the KELT-South survey. KELT-14b, an independent discovery of the recently announced WASP-122b, is an inflated Jupiter mass planet that orbits a ∼5.0^+0.3_-0.7 Gyr, V = 11.0, G2 star that is near the main sequence turnoff. The host star, KELT-14 (TYC 7638-981-1), has an inferred mass M_∗ = 1.18^+0.05_-0.07M⊙ and radius R_∗ = 1.37 ± -0.08 R⊙, and has T_eff = 5802⁺⁹⁵_-92 K, logg_∗ = 4.23^+0.05_-0.04 and [Fe/H] = 0.33 ± −0.09. The planet orbits with a period of 1.7100588 ± 0.0000025 days (T₀ = 2457091.02863 ± 0.00047) and has a radius Rp = 1.52^+0.12_-0.11R_J and mass Mp = 1.196 ± 0.072 M_J, and the eccentricity is consistent with zero. KELT-15b is another inflated Jupiter mass planet that orbits a ~4.6^+0.5_-0.4 Gyr, V = 11.2, G0 star (TYC 8146-86-1) that is near the "blue hook" stage of evolution prior to the Hertzsprung gap, and has an inferred mass M_∗= 1.181^+0.051_-0.050 M⊙ and radius R_∗ = 1.48^+0.09_-0.04 R⊙, and T_eff = 6003⁺⁵⁶_-52 K,logg_∗ = 4.17^+0.02_-0.04 and [Fe/H] = 0.05 ± 0.03. The planet orbits on a period of 3.329441 ± 0.000016 days (T₀ = 2457029.1663 ± 0.0073) and has a radius Rp = 1.443^+0.11_-0.057 R_J and mass Mp = 0.91^+0.21_-0.22 MJ and an eccentricity consistent with zero. KELT-14b has the second largest expected emission signal in the K-band for known transiting planets brighter than K < 10.5. Both KELT-14b and KELT-15b are predicted to have large enough emission signals that their secondary eclipses should be detectable using ground-based observatories.

Original language	English
Article number	138
Pages (from-to)	1-16
Number of pages	16
Journal	Astronomical Journal
Volume	151
Issue number	6
DOIs	https://doi.org/10.3847/0004-6256/151/6/138
Publication status	Published - 1 Jun 2016
Externally published	Yes

Keywords

planetary systems
stars: individual (KELT-14, KELT-15)
techniques: photometric
techniques: radial velocities
techniques: spectro

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10.3847/0004-6256/151/6/138

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Rodriguez, J. E., Colón, K. D., Stassun, K. G., Wright, D., Cargile, P. A., Bayliss, D., Pepper, J., Collins, K. A., Kuhn, R. B., Lund, M. B., Siverd, R. J., Zhou, G., Gaudi, B. S., Tinney, C. G., Penev, K., Tan, T. G., Stockdale, C., Curtis, I. A., James, D., ... Stevens, D. J. (2016). KELT-14b and KELT-15b: an independent discovery of WASP-122b and a new hot Jupiter. Astronomical Journal, 151(6), 1-16. [138]. https://doi.org/10.3847/0004-6256/151/6/138

@article{b81270f6486f46b1856a88d00cb2eb32,

title = "KELT-14b and KELT-15b: an independent discovery of WASP-122b and a new hot Jupiter",

abstract = "We report the discovery of KELT-14b and KELT-15b, two hot Jupiters from the KELT-South survey. KELT-14b, an independent discovery of the recently announced WASP-122b, is an inflated Jupiter mass planet that orbits a ∼5.0+0.3-0.7 Gyr, V = 11.0, G2 star that is near the main sequence turnoff. The host star, KELT-14 (TYC 7638-981-1), has an inferred mass M∗ = 1.18+0.05-0.07 M⊙ and radius R∗ = 1.37 ± -0.08 R⊙, and has Teff = 5802+95-92 K, logg∗ = 4.23+0.05-0.04 and [Fe/H] = 0.33 ± −0.09. The planet orbits with a period of 1.7100588 ± 0.0000025 days (T0 = 2457091.02863 ± 0.00047) and has a radius Rp = 1.52+0.12-0.11 RJ and mass Mp = 1.196 ± 0.072 MJ, and the eccentricity is consistent with zero. KELT-15b is another inflated Jupiter mass planet that orbits a ~4.6+0.5-0.4 Gyr, V = 11.2, G0 star (TYC 8146-86-1) that is near the {"}blue hook{"} stage of evolution prior to the Hertzsprung gap, and has an inferred mass M∗= 1.181+0.051-0.050 M⊙ and radius R∗ = 1.48+0.09-0.04 R⊙, and Teff = 6003+56-52 K,logg∗ = 4.17+0.02-0.04 and [Fe/H] = 0.05 ± 0.03. The planet orbits on a period of 3.329441 ± 0.000016 days (T0 = 2457029.1663 ± 0.0073) and has a radius Rp = 1.443+0.11-0.057 RJ and mass Mp = 0.91+0.21-0.22 MJ and an eccentricity consistent with zero. KELT-14b has the second largest expected emission signal in the K-band for known transiting planets brighter than K < 10.5. Both KELT-14b and KELT-15b are predicted to have large enough emission signals that their secondary eclipses should be detectable using ground-based observatories.",

keywords = "planetary systems, stars: individual (KELT-14, KELT-15), techniques: photometric, techniques: radial velocities, techniques: spectro",

author = "Rodriguez, {Joseph E.} and Col{\'o}n, {Knicole D.} and Stassun, {Keivan G.} and Duncan Wright and Cargile, {Phillip A.} and Daniel Bayliss and Joshua Pepper and Collins, {Karen A.} and Kuhn, {Rudolf B.} and Lund, {Michael B.} and Siverd, {Robert J.} and George Zhou and Gaudi, {B. Scott} and Tinney, {C. G.} and Kaloyan Penev and Tan, {T. G.} and Chris Stockdale and Curtis, {Ivan A.} and David James and Stephane Udry and Damien Segransan and Allyson Bieryla and Latham, {David W.} and Beatty, {Thomas G.} and Eastman, {Jason D.} and Gordon Myers and Jonathan Bartz and Joao Bento and Jensen, {Eric L. N.} and Oberst, {Thomas E.} and Stevens, {Daniel J.}",

year = "2016",

month = jun,

day = "1",

doi = "10.3847/0004-6256/151/6/138",

language = "English",

volume = "151",

pages = "1--16",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "Institute of Physics",

number = "6",

}

Rodriguez, JE, Colón, KD, Stassun, KG, Wright, D, Cargile, PA, Bayliss, D, Pepper, J, Collins, KA, Kuhn, RB, Lund, MB, Siverd, RJ, Zhou, G, Gaudi, BS, Tinney, CG, Penev, K, Tan, TG, Stockdale, C, Curtis, IA, James, D, Udry, S, Segransan, D, Bieryla, A, Latham, DW, Beatty, TG, Eastman, JD, Myers, G, Bartz, J, Bento, J, Jensen, ELN, Oberst, TE & Stevens, DJ 2016, 'KELT-14b and KELT-15b: an independent discovery of WASP-122b and a new hot Jupiter', Astronomical Journal, vol. 151, no. 6, 138, pp. 1-16. https://doi.org/10.3847/0004-6256/151/6/138

TY - JOUR

T1 - KELT-14b and KELT-15b

T2 - an independent discovery of WASP-122b and a new hot Jupiter

AU - Rodriguez, Joseph E.

AU - Colón, Knicole D.

AU - Stassun, Keivan G.

AU - Wright, Duncan

AU - Cargile, Phillip A.

AU - Bayliss, Daniel

AU - Pepper, Joshua

AU - Collins, Karen A.

AU - Kuhn, Rudolf B.

AU - Lund, Michael B.

AU - Siverd, Robert J.

AU - Zhou, George

AU - Gaudi, B. Scott

AU - Tinney, C. G.

AU - Penev, Kaloyan

AU - Tan, T. G.

AU - Stockdale, Chris

AU - Curtis, Ivan A.

AU - James, David

AU - Udry, Stephane

AU - Segransan, Damien

AU - Bieryla, Allyson

AU - Latham, David W.

AU - Beatty, Thomas G.

AU - Eastman, Jason D.

AU - Myers, Gordon

AU - Bartz, Jonathan

AU - Bento, Joao

AU - Jensen, Eric L. N.

AU - Oberst, Thomas E.

AU - Stevens, Daniel J.

PY - 2016/6/1

Y1 - 2016/6/1

N2 - We report the discovery of KELT-14b and KELT-15b, two hot Jupiters from the KELT-South survey. KELT-14b, an independent discovery of the recently announced WASP-122b, is an inflated Jupiter mass planet that orbits a ∼5.0+0.3-0.7 Gyr, V = 11.0, G2 star that is near the main sequence turnoff. The host star, KELT-14 (TYC 7638-981-1), has an inferred mass M∗ = 1.18+0.05-0.07 M⊙ and radius R∗ = 1.37 ± -0.08 R⊙, and has Teff = 5802+95-92 K, logg∗ = 4.23+0.05-0.04 and [Fe/H] = 0.33 ± −0.09. The planet orbits with a period of 1.7100588 ± 0.0000025 days (T0 = 2457091.02863 ± 0.00047) and has a radius Rp = 1.52+0.12-0.11 RJ and mass Mp = 1.196 ± 0.072 MJ, and the eccentricity is consistent with zero. KELT-15b is another inflated Jupiter mass planet that orbits a ~4.6+0.5-0.4 Gyr, V = 11.2, G0 star (TYC 8146-86-1) that is near the "blue hook" stage of evolution prior to the Hertzsprung gap, and has an inferred mass M∗= 1.181+0.051-0.050 M⊙ and radius R∗ = 1.48+0.09-0.04 R⊙, and Teff = 6003+56-52 K,logg∗ = 4.17+0.02-0.04 and [Fe/H] = 0.05 ± 0.03. The planet orbits on a period of 3.329441 ± 0.000016 days (T0 = 2457029.1663 ± 0.0073) and has a radius Rp = 1.443+0.11-0.057 RJ and mass Mp = 0.91+0.21-0.22 MJ and an eccentricity consistent with zero. KELT-14b has the second largest expected emission signal in the K-band for known transiting planets brighter than K < 10.5. Both KELT-14b and KELT-15b are predicted to have large enough emission signals that their secondary eclipses should be detectable using ground-based observatories.

AB - We report the discovery of KELT-14b and KELT-15b, two hot Jupiters from the KELT-South survey. KELT-14b, an independent discovery of the recently announced WASP-122b, is an inflated Jupiter mass planet that orbits a ∼5.0+0.3-0.7 Gyr, V = 11.0, G2 star that is near the main sequence turnoff. The host star, KELT-14 (TYC 7638-981-1), has an inferred mass M∗ = 1.18+0.05-0.07 M⊙ and radius R∗ = 1.37 ± -0.08 R⊙, and has Teff = 5802+95-92 K, logg∗ = 4.23+0.05-0.04 and [Fe/H] = 0.33 ± −0.09. The planet orbits with a period of 1.7100588 ± 0.0000025 days (T0 = 2457091.02863 ± 0.00047) and has a radius Rp = 1.52+0.12-0.11 RJ and mass Mp = 1.196 ± 0.072 MJ, and the eccentricity is consistent with zero. KELT-15b is another inflated Jupiter mass planet that orbits a ~4.6+0.5-0.4 Gyr, V = 11.2, G0 star (TYC 8146-86-1) that is near the "blue hook" stage of evolution prior to the Hertzsprung gap, and has an inferred mass M∗= 1.181+0.051-0.050 M⊙ and radius R∗ = 1.48+0.09-0.04 R⊙, and Teff = 6003+56-52 K,logg∗ = 4.17+0.02-0.04 and [Fe/H] = 0.05 ± 0.03. The planet orbits on a period of 3.329441 ± 0.000016 days (T0 = 2457029.1663 ± 0.0073) and has a radius Rp = 1.443+0.11-0.057 RJ and mass Mp = 0.91+0.21-0.22 MJ and an eccentricity consistent with zero. KELT-14b has the second largest expected emission signal in the K-band for known transiting planets brighter than K < 10.5. Both KELT-14b and KELT-15b are predicted to have large enough emission signals that their secondary eclipses should be detectable using ground-based observatories.

KW - planetary systems

KW - stars: individual (KELT-14, KELT-15)

KW - techniques: photometric

KW - techniques: radial velocities

KW - techniques: spectro

UR - http://www.scopus.com/inward/record.url?scp=84976350847&partnerID=8YFLogxK

U2 - 10.3847/0004-6256/151/6/138

DO - 10.3847/0004-6256/151/6/138

M3 - Article

AN - SCOPUS:84976350847

VL - 151

SP - 1

EP - 16

JO - Astronomical Journal

JF - Astronomical Journal

SN - 0004-6256

IS - 6

M1 - 138

ER -

KELT-14b and KELT-15b: an independent discovery of WASP-122b and a new hot Jupiter

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