Kepler-7b

A transiting planet with unusually low density

David W. Latham, William J. Borucki, David G. Koch, Timothy M. Brown, Lars A. Buchhave, Gibor Basri, Natalie M. Batalha, Douglas A. Caldwell, William D. Cochran, Edward W. Dunham, Gabor Furész, Thomas N. Gautier, John C. Geary, Ronald Lynn Gilliland, Steve B. Howell, Jon M. Jenkins, Jack J. Lissauer, Geoffrey W. Marcy, David G. Monet, Jason F. Rowe & 1 others Dimitar D. Sasselov

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

We report on the discovery and confirmation of Kepler-7b, a transiting planet with unusually low density. The mass is less than half that of Jupiter, M P = 0.43 M J, but the radius is 50% larger, R P = 1.48 R J. The resulting density, ρP = 0.17 g cm-3, is the second lowest reported so far for an extrasolar planet. The orbital period is fairly long, P = 4.886days, and the host star is not much hotter than the Sun, T eff = 6000K. However, it is more massive and considerably larger than the Sun, M = 1.35 M and R * = 1.84 R , and must be near the end of its life on the main sequence.

Original languageEnglish (US)
JournalAstrophysical Journal Letters
Volume713
Issue number2 PART 2
DOIs
StatePublished - Jan 1 2010

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planets
sun
planet
extrasolar planets
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Jupiter
stars
orbitals
radii

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Latham, D. W., Borucki, W. J., Koch, D. G., Brown, T. M., Buchhave, L. A., Basri, G., ... Sasselov, D. D. (2010). Kepler-7b: A transiting planet with unusually low density. Astrophysical Journal Letters, 713(2 PART 2). https://doi.org/10.1088/2041-8205/713/2/L140
Latham, David W. ; Borucki, William J. ; Koch, David G. ; Brown, Timothy M. ; Buchhave, Lars A. ; Basri, Gibor ; Batalha, Natalie M. ; Caldwell, Douglas A. ; Cochran, William D. ; Dunham, Edward W. ; Furész, Gabor ; Gautier, Thomas N. ; Geary, John C. ; Gilliland, Ronald Lynn ; Howell, Steve B. ; Jenkins, Jon M. ; Lissauer, Jack J. ; Marcy, Geoffrey W. ; Monet, David G. ; Rowe, Jason F. ; Sasselov, Dimitar D. / Kepler-7b : A transiting planet with unusually low density. In: Astrophysical Journal Letters. 2010 ; Vol. 713, No. 2 PART 2.
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Latham, DW, Borucki, WJ, Koch, DG, Brown, TM, Buchhave, LA, Basri, G, Batalha, NM, Caldwell, DA, Cochran, WD, Dunham, EW, Furész, G, Gautier, TN, Geary, JC, Gilliland, RL, Howell, SB, Jenkins, JM, Lissauer, JJ, Marcy, GW, Monet, DG, Rowe, JF & Sasselov, DD 2010, 'Kepler-7b: A transiting planet with unusually low density', Astrophysical Journal Letters, vol. 713, no. 2 PART 2. https://doi.org/10.1088/2041-8205/713/2/L140

Kepler-7b : A transiting planet with unusually low density. / Latham, David W.; Borucki, William J.; Koch, David G.; Brown, Timothy M.; Buchhave, Lars A.; Basri, Gibor; Batalha, Natalie M.; Caldwell, Douglas A.; Cochran, William D.; Dunham, Edward W.; Furész, Gabor; Gautier, Thomas N.; Geary, John C.; Gilliland, Ronald Lynn; Howell, Steve B.; Jenkins, Jon M.; Lissauer, Jack J.; Marcy, Geoffrey W.; Monet, David G.; Rowe, Jason F.; Sasselov, Dimitar D.

In: Astrophysical Journal Letters, Vol. 713, No. 2 PART 2, 01.01.2010.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Kepler-7b

T2 - A transiting planet with unusually low density

AU - Latham, David W.

AU - Borucki, William J.

AU - Koch, David G.

AU - Brown, Timothy M.

AU - Buchhave, Lars A.

AU - Basri, Gibor

AU - Batalha, Natalie M.

AU - Caldwell, Douglas A.

AU - Cochran, William D.

AU - Dunham, Edward W.

AU - Furész, Gabor

AU - Gautier, Thomas N.

AU - Geary, John C.

AU - Gilliland, Ronald Lynn

AU - Howell, Steve B.

AU - Jenkins, Jon M.

AU - Lissauer, Jack J.

AU - Marcy, Geoffrey W.

AU - Monet, David G.

AU - Rowe, Jason F.

AU - Sasselov, Dimitar D.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - We report on the discovery and confirmation of Kepler-7b, a transiting planet with unusually low density. The mass is less than half that of Jupiter, M P = 0.43 M J, but the radius is 50% larger, R P = 1.48 R J. The resulting density, ρP = 0.17 g cm-3, is the second lowest reported so far for an extrasolar planet. The orbital period is fairly long, P = 4.886days, and the host star is not much hotter than the Sun, T eff = 6000K. However, it is more massive and considerably larger than the Sun, M = 1.35 M ⊙ and R * = 1.84 R ⊙, and must be near the end of its life on the main sequence.

AB - We report on the discovery and confirmation of Kepler-7b, a transiting planet with unusually low density. The mass is less than half that of Jupiter, M P = 0.43 M J, but the radius is 50% larger, R P = 1.48 R J. The resulting density, ρP = 0.17 g cm-3, is the second lowest reported so far for an extrasolar planet. The orbital period is fairly long, P = 4.886days, and the host star is not much hotter than the Sun, T eff = 6000K. However, it is more massive and considerably larger than the Sun, M = 1.35 M ⊙ and R * = 1.84 R ⊙, and must be near the end of its life on the main sequence.

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DO - 10.1088/2041-8205/713/2/L140

M3 - Article

VL - 713

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

SN - 2041-8205

IS - 2 PART 2

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Latham DW, Borucki WJ, Koch DG, Brown TM, Buchhave LA, Basri G et al. Kepler-7b: A transiting planet with unusually low density. Astrophysical Journal Letters. 2010 Jan 1;713(2 PART 2). https://doi.org/10.1088/2041-8205/713/2/L140