Kepler-7b: a transiting planet with unusually low density

TY - JOUR

T1 - Kepler-7b

T2 - a transiting planet with unusually low density

AU - Latham...[et al.], David W.

AU - Borucki, W.J.

AU - Koch, D.G.

AU - Buchhave, Lars C. Astrup

PY - 2010/4/20

Y1 - 2010/4/20

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.

U2 - 10.1088/2041-8205/713/2/L140

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

M3 - Journal article

SN - 0004-637X

VL - 713

SP - L140-L144

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

ER -