2013ApJ...773...98B


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.06CET14:09:14

2013ApJ...773...98B - Astrophys. J., 773, 98 (2013/August-3)

Exoplanet characterization by proxy: a transiting 2.15 RPlanet near the habitable zone of the late K dwarf Kepler-61.

BALLARD S., CHARBONNEAU D., FRESSIN F., TORRES G., IRWIN J., DESERT J.-M., NEWTON E., MANN A.W., CIARDI D.R., CREPP J.R., HENZE C.E., BRYSON S.T., HOWELL S.B., HORCH E.P., EVERETT M.E. and SHPORER A.

Abstract (from CDS):

We present the validation and characterization of Kepler-61b: a 2.15 R planet orbiting near the inner edge of the habitable zone of a low-mass star. Our characterization of the host star Kepler-61 is based upon a comparison with a set of spectroscopically similar stars with directly measured radii and temperatures. We apply a stellar prior drawn from the weighted mean of these properties, in tandem with the Kepler photometry, to infer a planetary radius for Kepler-61b of 2.15±0.13 Rand an equilibrium temperature of 273±13 K (given its period of 59.87756 ± 0.00020 days and assuming a planetary albedo of 0.3). The technique of leveraging the physical properties of nearby "proxy" stars allows for an independent check on stellar characterization via the traditional measurements with stellar spectra and evolutionary models. In this case, such a check had implications for the putative habitability of Kepler-61b: the planet is 10% warmer and larger than inferred from K-band spectral characterization. From the Kepler photometry, we estimate a stellar rotation period of 36 days, which implies a stellar age of >1 Gyr. We summarize the evidence for the planetary nature of the Kepler-61 transit signal, which we conclude is 30,000 times more likely to be due to a planet than a blend scenario. Finally, we discuss possible compositions for Kepler-61b with a comparison to theoretical models as well as to known exoplanets with similar radii and dynamically measured masses.

Abstract Copyright:

Journal keyword(s): eclipses - planetary systems - stars: individual (Kepler-61, KOI 1361, KIC 6960913)

Simbad objects: 49

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Number of rows : 49

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 CoRoT-7 * 06 43 49.4690410679 -01 03 46.825797768   12.78 11.73 11.36 10.87 K0V 169 1
2 CoRoT-7b Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 331 1
3 NGC 2632 OpC 08 40 24 +19 40.0           ~ 1183 0
4 * rho01 Cnc e Pl 08 52 35.81093 +28 19 50.9511           ~ 359 1
5 HD 79210 Fl* 09 14 22.7754519714 +52 41 11.792840757   9.388   6.8   K7V 244 0
6 HD 79211 Fl* 09 14 24.6830609365 +52 41 10.906120364   7.966   6.8   M0V 228 0
7 HD 88230 Fl* 10 11 22.1400209197 +49 27 15.249158750 9.23 7.94 6.61 5.36 4.56 K6VeFe-1 418 0
8 G 139-21 PM* 17 15 18.9337265994 +04 57 50.064695682   16.40   14.394   M4.5V 222 1
9 NAME LHS 3275b Pl 17 15 18.94 +04 57 49.7           ~ 494 1
10 NAME Barnard's star BY* 17 57 48.4997994034 +04 41 36.111354228 12.497 11.24 9.511 8.298 6.741 M4V 630 2
11 BD+45 2743B PM* 18 35 27.2883134571 +45 45 40.945788070   14.62   12.671   M2.5V 51 0
12 KOI-701.04 Pl 18 52 51.0518996853 +45 20 59.400075457           ~ 47 1
13 KOI-701.03 Pl 18 52 51.0518996853 +45 20 59.400075457           ~ 50 1
14 KOI-806 Ro* 19 01 08.0746750853 +38 56 50.218666290   16.50   15.95 14.55 ~ 115 4
15 KOI-377.03 Pl 19 02 17.7544105084 +38 24 03.177247136           ~ 48 1
16 KOI-72.02 Pl 19 02 43.0612302512 +50 14 28.700759378           ~ 91 1
17 Kepler-10 Ro* 19 02 43.0612302512 +50 14 28.700759378       11.00   G 149 4
18 KOI-72.01 Pl 19 02 43.0612302512 +50 14 28.700759378           ~ 227 1
19 KOI-244.02 Pl 19 06 33.2143323702 +39 29 16.357969502           ~ 43 1
20 HD 179070 Ro* 19 09 26.8351401260 +38 42 50.455094310   8.767 8.25 8.00   F6IV 128 3
21 Kepler-20 Ro* 19 10 47.5234815840 +42 20 19.299357667   13.41 12.51 12.70 11.64 G5V 109 4
22 KOI-70.05 Pl 19 10 47.5234815840 +42 20 19.299357667           ~ 41 1
23 KOI-70.02 Pl 19 10 47.5234815840 +42 20 19.299357667           ~ 79 1
24 KOI-70.01 Pl 19 10 47.5234815840 +42 20 19.299357667           ~ 69 1
25 KOI-70.04 Pl 19 10 47.5234815840 +42 20 19.299357667           ~ 39 1
26 KOI-98.01 Pl 19 10 50.110 +47 19 58.87           ~ 47 1
27 Kepler-16 Al* 19 16 18.1759181246 +51 45 26.777781114   12.1   11.90   K7V 186 1
28 KOI-87.01 Pl 19 16 52.1904191915 +47 53 03.947532134           ~ 73 1
29 KOI-87 PM* 19 16 52.1904191915 +47 53 03.947532134   11.5   11.70   G5 72 3
30 KOI-84 Ro* 19 21 40.9995767736 +37 51 06.436261131   12.88 12.04 12.02   ~ 60 3
31 KOI-84.01 Pl 19 21 40.9995767736 +37 51 06.436261131           ~ 33 1
32 KOI-246.01 Pl 19 24 07.7660110490 +49 02 24.928201112           ~ 64 1
33 KOI-246 * 19 24 07.7660110490 +49 02 24.928201112   10.73 10.08     ~ 85 5
34 KOI-246.02 Pl 19 24 07.7660110490 +49 02 24.928201112           ~ 34 1
35 KOI-277.02 Pl 19 25 00.0430855076 +49 13 54.631289830           ~ 104 1
36 Kepler-42c Pl 19 28 52.556 +44 37 09.62           ~ 37 1
37 Kepler-42b Pl 19 28 52.556 +44 37 09.62           ~ 29 1
38 KOI-961 PM* 19 28 52.5687991194 +44 37 08.990276298   17.8   16.06   M4V 95 4
39 KOI-1361.01 Pl 19 41 13.0817764220 +42 28 30.987159495           ~ 21 1
40 Kepler-61 Ro* 19 41 13.0817764220 +42 28 30.987159495     15.17 15.06 13.95 M0V 40 3
41 KOI-157.05 Pl 19 48 27.6228219845 +41 54 32.902654079           ~ 62 1
42 KOI-157.06 Pl 19 48 27.6228219845 +41 54 32.902654079           ~ 119 1
43 KOI-157.04 Pl 19 48 27.6228219845 +41 54 32.902654079           ~ 104 1
44 KOI-952 Ro* 19 51 22.1742182229 +46 34 27.389715146           M1V 80 4
45 Kepler-18 Ro* 19 52 19.0688249829 +44 44 46.807526602       13.93   ~ 90 4
46 KOI-137.01 Pl 19 52 19.0688249829 +44 44 46.807526602           ~ 53 1
47 KOI-137.03 Pl 19 52 19.0688249829 +44 44 46.807526602           ~ 55 1
48 * 61 Cyg A BY* 21 06 53.9396100677 +38 44 57.897024357 7.50 6.39 5.21 4.19 3.54 K5V 931 0
49 * 61 Cyg B Fl* 21 06 55.2640651855 +38 44 31.362140913 8.63 7.40 6.03 4.86 3.55 K7V 661 1

    Equat.    Gal    SGal    Ecl

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2019.12.06-14:09:14

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