Abstract
We present a study of the relative sizes of planets within the multiple-candidate systems discovered with the Kepler mission. We have compared the size of each planet to the size of every other planet within a given planetary system after correcting the sample for detection and geometric biases. We find that for planet pairs for which one or both objects are approximately Neptune-sized or larger, the larger planet is most often the planet with the longer period. No such size-location correlation is seen for pairs of planets when both planets are smaller than Neptune. Specifically, if at least one planet in a planet pair has a radius of ≳ 3 R⊕, 68% ± 6% of the planet pairs have the inner planet smaller than the outer planet, while no preferred sequential ordering of the planets is observed if both planets in a pair are smaller than ≲ 3 R⊕.
| Original language | English (US) |
|---|---|
| Article number | 41 |
| Journal | Astrophysical Journal |
| Volume | 763 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 20 2013 |
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All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
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On the relative sizes of planets within kepler multiple-candidate systems. / Ciardi, David R.; Fabrycky, Daniel C.; Ford, Eric B.; Gautier, T. N.; Howell, Steve B.; Lissauer, Jack J.; Ragozzine, Darin; Rowe, Jason F.
In: Astrophysical Journal, Vol. 763, No. 1, 41, 20.01.2013.Research output: Contribution to journal › Article
TY - JOUR
T1 - On the relative sizes of planets within kepler multiple-candidate systems
AU - Ciardi, David R.
AU - Fabrycky, Daniel C.
AU - Ford, Eric B.
AU - Gautier, T. N.
AU - Howell, Steve B.
AU - Lissauer, Jack J.
AU - Ragozzine, Darin
AU - Rowe, Jason F.
PY - 2013/1/20
Y1 - 2013/1/20
N2 - We present a study of the relative sizes of planets within the multiple-candidate systems discovered with the Kepler mission. We have compared the size of each planet to the size of every other planet within a given planetary system after correcting the sample for detection and geometric biases. We find that for planet pairs for which one or both objects are approximately Neptune-sized or larger, the larger planet is most often the planet with the longer period. No such size-location correlation is seen for pairs of planets when both planets are smaller than Neptune. Specifically, if at least one planet in a planet pair has a radius of ≳ 3 R⊕, 68% ± 6% of the planet pairs have the inner planet smaller than the outer planet, while no preferred sequential ordering of the planets is observed if both planets in a pair are smaller than ≲ 3 R⊕.
AB - We present a study of the relative sizes of planets within the multiple-candidate systems discovered with the Kepler mission. We have compared the size of each planet to the size of every other planet within a given planetary system after correcting the sample for detection and geometric biases. We find that for planet pairs for which one or both objects are approximately Neptune-sized or larger, the larger planet is most often the planet with the longer period. No such size-location correlation is seen for pairs of planets when both planets are smaller than Neptune. Specifically, if at least one planet in a planet pair has a radius of ≳ 3 R⊕, 68% ± 6% of the planet pairs have the inner planet smaller than the outer planet, while no preferred sequential ordering of the planets is observed if both planets in a pair are smaller than ≲ 3 R⊕.
UR - http://www.scopus.com/inward/record.url?scp=84872236825&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872236825&partnerID=8YFLogxK
U2 - 10.1088/0004-637X/763/1/41
DO - 10.1088/0004-637X/763/1/41
M3 - Article
AN - SCOPUS:84872236825
VL - 763
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1
M1 - 41
ER -