J/other/Sci/337.1511 Kepler-47 transits (Orosz+, 2012)
Kepler-47: A transiting circumbinary multiplanet system.
Orosz J.A., Welsh W.F., Carter J.A., Fabrycky D.C., Cochran W.D., Endl M.,
Ford E.B., Haghighipour N., MacQueen P., Mazeh T., Sanchis-Ojeda R.,
Short D.R., Torres G., Agol E., Buchhave L.A., Doyle L.R., Isaacson H.,
Lissauer J.J., Marcy G.W., Shporer A., Windmiller G., Barclay T.,
Boss A.P., Clarke B.D., Fortney J., Geary J.C., Holman M.J., Huber D.,
Jenkins J.M., Kinemuchi K., Kruse E., Ragozzine D., Sasselov D., Still M.,
Tenenbaum P., Uddin K., Winn J.N., Koch D.G., Borucki W.J.
<Science, 337, 1511-1514 (2012)>
=2012Sci...337.1511O 2012Sci...337.1511O
ADC_Keywords: Stars, double and multiple ; Planets ; Radial velocities
Abstract:
We report the detection of Kepler-47, a system consisting of two
planets orbiting around an eclipsing pair of stars. The inner and
outer planets have radii 3.0 and 4.6 times that of Earth,
respectively. The binary star consists of a Sun-like star and a
companion roughly one-third its size, orbiting each other every
7.45-days. With an orbital period of 49.5-days, 18 transits of the
inner planet have been observed, allowing a detailed characterization
of its orbit and those of the stars. The outer planet's orbital period
is 303.2-days, and although the planet is not Earth-like, it resides
within the classical "habitable zone", where liquid water could exist
on an Earth-like planet. With its two known planets, Kepler-47
establishes that close binary stars can host complete planetary
systems.
Objects:
-----------------------------------------------------------------
RA (2000) DE Designation(s)
-----------------------------------------------------------------
19 41 11.50 +46 55 13.7 Kepler-47 = KIC 10020423 = KOI-3154
-----------------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tables1.dat 52 11 Radial velocities for Kepler-47
tables3.dat 60 142 Times of stellar eclipses
tables4.dat 59 26 Times of planetary transits
tables7.dat 55 51 Predicted transit times for planet b
tables8.dat 55 9 Predicted transit times for planet c
--------------------------------------------------------------------------------
See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
J/MNRAS/408/L51 : 2M1938+4603 (KIC 9472174) eclipses (Ostensen+, 2010)
J/A+A/528/A63 : Velocitometry transit of KOI-428b (Santerne+, 2011)
J/A+A/536/L9 : Detections of transit variations in KOI 806 (Tingley+, 2011)
J/A+A/544/L12 : Velocitometry transit of KOI-13 (Santerne+, 2012)
J/other/Nat/481.475 : Kepler-34b + Kepler-35b radial velocities (Welsh+, 2012)
Byte-by-byte Description of file: tables1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 "YYYY-MM-DD" Date Observation date
12- 22 A11 "h:m:s" Time Observation UT time
24- 33 F10.5 d BJD Barycentric Julian date (BJD-2455000)
35- 41 F7.3 km/s RVA Radial velocity of component A
43- 47 F5.3 km/s e_RVA rms uncertainty on RVA
49- 52 A4 --- Tel Telescope
--------------------------------------------------------------------------------
Table S2: Spectroscopic parameters from SPC.
--------------------------------------------------
parameter value
--------------------------------------------------
Teff (K) 5636 ± 100
logg (cgs dex) 4.42 ± 0.10
[m/H] (dex) -0.25 ± 0.08
Vrot*sini (km/s) 4.1 ± 0.5
--------------------------------------------------
Byte-by-byte Description of file: tables3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 F5.1 --- Cycle1 Cycle number for primary eclipse
7- 16 F10.5 d Time1 ?=- Primary eclipse time (BJD-2455000)
18- 27 F10.5 d Time1C ?=- Corrected primary eclipse time (BJD-2455000)
29- 32 F4.2 min e_Time1 ?=- Uncertainty on Time1 and Time1C
34- 44 F11.7 --- Cycle2 Cycle number for secondary eclipse
46- 55 F10.5 d Time2 ?=- Secondary eclipse time (BJD-2455000)
57- 60 F4.2 min e_Time2 ?=- Uncertainty on Time2
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tables4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- Planet [bcO] Planet code (b or c), or orphan O)
3- 6 F4.1 --- Cycle Cycle number
8- 16 F9.5 d Time ?=- Measured time (BJD-2455000)
18- 22 F5.2 min e_Time ?=- Uncertainty on Time
24- 28 F5.2 h Dur ?=- Duration
30- 38 F9.5 d TimeM ?=- Model time (BJD-2455000)
40- 44 F5.2 h DurM ?=- Model duration
46- 59 A14 ---- Note Note
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tables7.dat tables8.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Ep Epoch number
4- 11 F8.3 d T0 Time of minimum (T0-2455000, BJD)
13- 17 F5.3 d e_T0 rms uncertainty on T0
19- 23 F5.3 --- b Impact parameter
25- 29 F5.3 --- e_b rms uncertainty on impact parameter
31- 36 F6.3 --- Vtr Transit velocity (in RA/day) (1)
38- 42 F5.3 --- e_Vtr rms uncertainty on Vtr (in RA/day) (1)
44- 49 F6.3 h Dur Duration
51- 55 F5.3 h e_Dur rms uncertainty on duration
--------------------------------------------------------------------------------
Note (1): RA is the radius of star A (0.964±0.017R☉)
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 27-Dec-2012