|
|
|
|
LEADER |
02177 am a22003253u 4500 |
001 |
100820 |
042 |
|
|
|a dc
|
100 |
1 |
0 |
|a Dai, Fei
|e author
|
100 |
1 |
0 |
|a Massachusetts Institute of Technology. Department of Physics
|e contributor
|
100 |
1 |
0 |
|a MIT Kavli Institute for Astrophysics and Space Research
|e contributor
|
100 |
1 |
0 |
|a Dai, Fei
|e contributor
|
100 |
1 |
0 |
|a Winn, Joshua Nathan
|e contributor
|
700 |
1 |
0 |
|a Arriagada, Pamela
|e author
|
700 |
1 |
0 |
|a Butler, R. Paul
|e author
|
700 |
1 |
0 |
|a Crane, Jeffrey D.
|e author
|
700 |
1 |
0 |
|a Johnson, John Asher
|e author
|
700 |
1 |
0 |
|a Shectman, Stephen A.
|e author
|
700 |
1 |
0 |
|a Teske, Johanna K.
|e author
|
700 |
1 |
0 |
|a Thompson, Ian B.
|e author
|
700 |
1 |
0 |
|a Vanderburg, Andrew
|e author
|
700 |
1 |
0 |
|a Wittenmyer, Robert A.
|e author
|
700 |
1 |
0 |
|a Winn, Joshua Nathan
|e author
|
245 |
0 |
0 |
|a DOPPLER MONITORING OF THE WASP-47 MULTIPLANET SYSTEM
|
260 |
|
|
|b IOP Publishing,
|c 2016-01-14T00:06:25Z.
|
856 |
|
|
|z Get fulltext
|u http://hdl.handle.net/1721.1/100820
|
520 |
|
|
|a We present precise Doppler observations of WASP-47, a transiting planetary system featuring a hot Jupiter with both inner and outer planetary companions. This system has an unusual architecture and also provides a rare opportunity to measure planet masses in two different ways: the Doppler method, and the analysis of transit-timing variations (TTV). Based on the new Doppler data, obtained with the Planet Finder Spectrograph on the Magellan/Clay 6.5 m telescope, the mass of the hot Jupiter is 370 ± 29[subscript ⊕]. This is consistent with the previous Doppler determination as well as the TTV determination. For the inner planet WASP-47e, the Doppler data lead to a mass of 12.2 ± 3.7[subscript ⊕], in agreement with the TTV-based upper limit of <22 M[subscript ⊕] (95% confidence). For the outer planet WASP-47d, the Doppler mass constraint of 10.4 ± 8.4[subscript ⊕] is consistent with the TTV-based measurement of $15.2[+6.7 over -7.6] M[subscript ⊕].
|
520 |
|
|
|a United States. National Aeronautics and Space Administration (Origins Program Grant NNX11AG85G)
|
546 |
|
|
|a en_US
|
655 |
7 |
|
|a Article
|
773 |
|
|
|t The Astrophysical Journal. Letters
|