KELT-10b: The first transiting exoplanet from the KELT-South survey - a hot sub-Jupiter transiting a V = 10.7 early G-star

Rudolf B. Kuhn, Joseph E. Rodriguez, Karen A. Collins, Michael B. Lund, Robert J. Siverd, Knicole D. Colón, Joshua Pepper, Keivan G. Stassun, Phillip A. Cargile, David J. James, Kaloyan Penev, George Zhou, Daniel Bayliss, T. G. Tan, Ivan A. Curtis, Stephane Udry, Damien Segransan, Dimitri Mawet, Saurav Dhital, Jack SoutterRhodes Hart, Brad Carter, B. Scott Gaudi, Gordon Myers, Thomas G. Beatty, Jason D. Eastman, Daniel E. Reichart, Joshua B. Haislip, John Kielkopf, Allyson Bieryla, David W. Latham, Eric L.N. Jensen, Thomas E. Oberst, Daniel J. Stevens

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We report the discovery of KELT-10b, the first transiting exoplanet discovered using the KELT-South telescope. KELT-10b is a highly inflated sub-Jupiter mass planet transiting a relatively bright V = 10.7 star (TYC 8378-64-1), with Teff = 5948 ± 74 K, log g = 4.319-0.030 +0.020 and [Fe/H] = 0.09-0.10 +0.11, an inferred mass M* = 1.112-0.061 +0.055 M and radius R* = 1.209-0.035 +0.047 R. The planet has a radius Rp = 1.399-0.049 +0.069 RJ and mass Mp = 0.679-0.038 +0.039 MJ. The planet has an eccentricity consistent with zero and a semimajor axis a = 0.052 50-0.000 97 +0.000 86 au. The best-fitting linear ephemeris is T0 = 2457 066.720 45 ± 0.000 27 BJDTDB and P = 4.166 2739 ± 0.000 0063 d. This planet joins a group of highly inflated transiting exoplanets with a larger radius and smaller mass than that of Jupiter. The planet, which boasts deep transits of 1.4 per cent, has a relatively high equilibrium temperature of Teq = 1377-23 +28 K, assuming zero albedo and perfect heat redistribution. KELT-10b receives an estimated insolation of 0.817-0.054 +0.068 × 109 erg s-1 cm-2, which places it far above the insolation threshold above which hot Jupiters exhibit increasing amounts of radius inflation. Evolutionary analysis of the host star suggests that KELT-10b may not survive beyond the current subgiant phase, depending on the rate of in-spiral of the planet over the next few Gyr. The planet transits a relatively bright star and exhibits the third largest transit depth of all transiting exoplanets with V < 11 in the Southern hemisphere, making it a promising candidate for future atmospheric characterization studies.

Original languageEnglish (US)
Pages (from-to)4281-4298
Number of pages18
JournalMonthly Notices of the Royal Astronomical Society
Volume459
Issue number4
DOIs
StatePublished - Jan 1 2016

Fingerprint

G stars
early stars
extrasolar planets
Jupiter (planet)
Jupiter
planets
planet
transit
insolation
radii
stars
Southern Hemisphere
albedo
eccentricity
inflation
erg
telescopes
heat
thresholds

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Kuhn, R. B., Rodriguez, J. E., Collins, K. A., Lund, M. B., Siverd, R. J., Colón, K. D., ... Stevens, D. J. (2016). KELT-10b: The first transiting exoplanet from the KELT-South survey - a hot sub-Jupiter transiting a V = 10.7 early G-star. Monthly Notices of the Royal Astronomical Society, 459(4), 4281-4298. https://doi.org/10.1093/mnras/stw880
Kuhn, Rudolf B. ; Rodriguez, Joseph E. ; Collins, Karen A. ; Lund, Michael B. ; Siverd, Robert J. ; Colón, Knicole D. ; Pepper, Joshua ; Stassun, Keivan G. ; Cargile, Phillip A. ; James, David J. ; Penev, Kaloyan ; Zhou, George ; Bayliss, Daniel ; Tan, T. G. ; Curtis, Ivan A. ; Udry, Stephane ; Segransan, Damien ; Mawet, Dimitri ; Dhital, Saurav ; Soutter, Jack ; Hart, Rhodes ; Carter, Brad ; Gaudi, B. Scott ; Myers, Gordon ; Beatty, Thomas G. ; Eastman, Jason D. ; Reichart, Daniel E. ; Haislip, Joshua B. ; Kielkopf, John ; Bieryla, Allyson ; Latham, David W. ; Jensen, Eric L.N. ; Oberst, Thomas E. ; Stevens, Daniel J. / KELT-10b : The first transiting exoplanet from the KELT-South survey - a hot sub-Jupiter transiting a V = 10.7 early G-star. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 459, No. 4. pp. 4281-4298.
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abstract = "We report the discovery of KELT-10b, the first transiting exoplanet discovered using the KELT-South telescope. KELT-10b is a highly inflated sub-Jupiter mass planet transiting a relatively bright V = 10.7 star (TYC 8378-64-1), with Teff = 5948 ± 74 K, log g = 4.319-0.030 +0.020 and [Fe/H] = 0.09-0.10 +0.11, an inferred mass M* = 1.112-0.061 +0.055 M⊙ and radius R* = 1.209-0.035 +0.047 R⊙. The planet has a radius Rp = 1.399-0.049 +0.069 RJ and mass Mp = 0.679-0.038 +0.039 MJ. The planet has an eccentricity consistent with zero and a semimajor axis a = 0.052 50-0.000 97 +0.000 86 au. The best-fitting linear ephemeris is T0 = 2457 066.720 45 ± 0.000 27 BJDTDB and P = 4.166 2739 ± 0.000 0063 d. This planet joins a group of highly inflated transiting exoplanets with a larger radius and smaller mass than that of Jupiter. The planet, which boasts deep transits of 1.4 per cent, has a relatively high equilibrium temperature of Teq = 1377-23 +28 K, assuming zero albedo and perfect heat redistribution. KELT-10b receives an estimated insolation of 0.817-0.054 +0.068 × 109 erg s-1 cm-2, which places it far above the insolation threshold above which hot Jupiters exhibit increasing amounts of radius inflation. Evolutionary analysis of the host star suggests that KELT-10b may not survive beyond the current subgiant phase, depending on the rate of in-spiral of the planet over the next few Gyr. The planet transits a relatively bright star and exhibits the third largest transit depth of all transiting exoplanets with V < 11 in the Southern hemisphere, making it a promising candidate for future atmospheric characterization studies.",
author = "Kuhn, {Rudolf B.} and Rodriguez, {Joseph E.} and Collins, {Karen A.} and Lund, {Michael B.} and Siverd, {Robert J.} and Col{\'o}n, {Knicole D.} and Joshua Pepper and Stassun, {Keivan G.} and Cargile, {Phillip A.} and James, {David J.} and Kaloyan Penev and George Zhou and Daniel Bayliss and Tan, {T. G.} and Curtis, {Ivan A.} and Stephane Udry and Damien Segransan and Dimitri Mawet and Saurav Dhital and Jack Soutter and Rhodes Hart and Brad Carter and Gaudi, {B. Scott} and Gordon Myers and Beatty, {Thomas G.} and Eastman, {Jason D.} and Reichart, {Daniel E.} and Haislip, {Joshua B.} and John Kielkopf and Allyson Bieryla and Latham, {David W.} and Jensen, {Eric L.N.} and Oberst, {Thomas E.} and Stevens, {Daniel J.}",
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Kuhn, RB, Rodriguez, JE, Collins, KA, Lund, MB, Siverd, RJ, Colón, KD, Pepper, J, Stassun, KG, Cargile, PA, James, DJ, Penev, K, Zhou, G, Bayliss, D, Tan, TG, Curtis, IA, Udry, S, Segransan, D, Mawet, D, Dhital, S, Soutter, J, Hart, R, Carter, B, Gaudi, BS, Myers, G, Beatty, TG, Eastman, JD, Reichart, DE, Haislip, JB, Kielkopf, J, Bieryla, A, Latham, DW, Jensen, ELN, Oberst, TE & Stevens, DJ 2016, 'KELT-10b: The first transiting exoplanet from the KELT-South survey - a hot sub-Jupiter transiting a V = 10.7 early G-star', Monthly Notices of the Royal Astronomical Society, vol. 459, no. 4, pp. 4281-4298. https://doi.org/10.1093/mnras/stw880

KELT-10b : The first transiting exoplanet from the KELT-South survey - a hot sub-Jupiter transiting a V = 10.7 early G-star. / Kuhn, Rudolf B.; Rodriguez, Joseph E.; Collins, Karen A.; Lund, Michael B.; Siverd, Robert J.; Colón, Knicole D.; Pepper, Joshua; Stassun, Keivan G.; Cargile, Phillip A.; James, David J.; Penev, Kaloyan; Zhou, George; Bayliss, Daniel; Tan, T. G.; Curtis, Ivan A.; Udry, Stephane; Segransan, Damien; Mawet, Dimitri; Dhital, Saurav; Soutter, Jack; Hart, Rhodes; Carter, Brad; Gaudi, B. Scott; Myers, Gordon; Beatty, Thomas G.; Eastman, Jason D.; Reichart, Daniel E.; Haislip, Joshua B.; Kielkopf, John; Bieryla, Allyson; Latham, David W.; Jensen, Eric L.N.; Oberst, Thomas E.; Stevens, Daniel J.

In: Monthly Notices of the Royal Astronomical Society, Vol. 459, No. 4, 01.01.2016, p. 4281-4298.

Research output: Contribution to journalArticle

TY - JOUR

T1 - KELT-10b

T2 - The first transiting exoplanet from the KELT-South survey - a hot sub-Jupiter transiting a V = 10.7 early G-star

AU - Kuhn, Rudolf B.

AU - Rodriguez, Joseph E.

AU - Collins, Karen A.

AU - Lund, Michael B.

AU - Siverd, Robert J.

AU - Colón, Knicole D.

AU - Pepper, Joshua

AU - Stassun, Keivan G.

AU - Cargile, Phillip A.

AU - James, David J.

AU - Penev, Kaloyan

AU - Zhou, George

AU - Bayliss, Daniel

AU - Tan, T. G.

AU - Curtis, Ivan A.

AU - Udry, Stephane

AU - Segransan, Damien

AU - Mawet, Dimitri

AU - Dhital, Saurav

AU - Soutter, Jack

AU - Hart, Rhodes

AU - Carter, Brad

AU - Gaudi, B. Scott

AU - Myers, Gordon

AU - Beatty, Thomas G.

AU - Eastman, Jason D.

AU - Reichart, Daniel E.

AU - Haislip, Joshua B.

AU - Kielkopf, John

AU - Bieryla, Allyson

AU - Latham, David W.

AU - Jensen, Eric L.N.

AU - Oberst, Thomas E.

AU - Stevens, Daniel J.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - We report the discovery of KELT-10b, the first transiting exoplanet discovered using the KELT-South telescope. KELT-10b is a highly inflated sub-Jupiter mass planet transiting a relatively bright V = 10.7 star (TYC 8378-64-1), with Teff = 5948 ± 74 K, log g = 4.319-0.030 +0.020 and [Fe/H] = 0.09-0.10 +0.11, an inferred mass M* = 1.112-0.061 +0.055 M⊙ and radius R* = 1.209-0.035 +0.047 R⊙. The planet has a radius Rp = 1.399-0.049 +0.069 RJ and mass Mp = 0.679-0.038 +0.039 MJ. The planet has an eccentricity consistent with zero and a semimajor axis a = 0.052 50-0.000 97 +0.000 86 au. The best-fitting linear ephemeris is T0 = 2457 066.720 45 ± 0.000 27 BJDTDB and P = 4.166 2739 ± 0.000 0063 d. This planet joins a group of highly inflated transiting exoplanets with a larger radius and smaller mass than that of Jupiter. The planet, which boasts deep transits of 1.4 per cent, has a relatively high equilibrium temperature of Teq = 1377-23 +28 K, assuming zero albedo and perfect heat redistribution. KELT-10b receives an estimated insolation of 0.817-0.054 +0.068 × 109 erg s-1 cm-2, which places it far above the insolation threshold above which hot Jupiters exhibit increasing amounts of radius inflation. Evolutionary analysis of the host star suggests that KELT-10b may not survive beyond the current subgiant phase, depending on the rate of in-spiral of the planet over the next few Gyr. The planet transits a relatively bright star and exhibits the third largest transit depth of all transiting exoplanets with V < 11 in the Southern hemisphere, making it a promising candidate for future atmospheric characterization studies.

AB - We report the discovery of KELT-10b, the first transiting exoplanet discovered using the KELT-South telescope. KELT-10b is a highly inflated sub-Jupiter mass planet transiting a relatively bright V = 10.7 star (TYC 8378-64-1), with Teff = 5948 ± 74 K, log g = 4.319-0.030 +0.020 and [Fe/H] = 0.09-0.10 +0.11, an inferred mass M* = 1.112-0.061 +0.055 M⊙ and radius R* = 1.209-0.035 +0.047 R⊙. The planet has a radius Rp = 1.399-0.049 +0.069 RJ and mass Mp = 0.679-0.038 +0.039 MJ. The planet has an eccentricity consistent with zero and a semimajor axis a = 0.052 50-0.000 97 +0.000 86 au. The best-fitting linear ephemeris is T0 = 2457 066.720 45 ± 0.000 27 BJDTDB and P = 4.166 2739 ± 0.000 0063 d. This planet joins a group of highly inflated transiting exoplanets with a larger radius and smaller mass than that of Jupiter. The planet, which boasts deep transits of 1.4 per cent, has a relatively high equilibrium temperature of Teq = 1377-23 +28 K, assuming zero albedo and perfect heat redistribution. KELT-10b receives an estimated insolation of 0.817-0.054 +0.068 × 109 erg s-1 cm-2, which places it far above the insolation threshold above which hot Jupiters exhibit increasing amounts of radius inflation. Evolutionary analysis of the host star suggests that KELT-10b may not survive beyond the current subgiant phase, depending on the rate of in-spiral of the planet over the next few Gyr. The planet transits a relatively bright star and exhibits the third largest transit depth of all transiting exoplanets with V < 11 in the Southern hemisphere, making it a promising candidate for future atmospheric characterization studies.

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