2015ApJ...804...97C


Query : 2015ApJ...804...97C

2015ApJ...804...97C - Astrophys. J., 804, 97 (2015/May-2)

Revision of earth-sized Kepler planet candidate properties with high-resolution imaging by the Hubble Space Telescope.

CARTIER K.M.S., GILLILAND R.L., WRIGHT J.T. and CIARDI D.R.

Abstract (from CDS):

We present the results of our Hubble Space Telescope program and describe how our analysis methods were used to re-evaluate the habitability of some of the most interesting Kepler planet candidates. Our program observed 22 Kepler Object of Interest (KOI) host stars, several of which were found to be multiple star systems unresolved by Kepler. We use our high-resolution imaging to spatially resolve the stellar multiplicity of Kepler-296, KOI-2626, and KOI-3049, and develop a conversion to the Kepler photometry (Kp) from the F555W and F775W filters on WFC3/UVIS. The binary system Kepler-296 (five planets) has a projected separation of 0".217 (80 AU); KOI-2626 (one planet candidate) is a triple star system with a projected separation of 0".201 (70 AU) between the primary and secondary components and 0".161 (55 AU) between the primary and tertiary; and the binary system KOI-3049 (one planet candidate) has a projected separation of 0".464 (225 AU). We use our measured photometry to fit the separated stellar components to the latest Victoria-Regina Stellar Models with synthetic photometry to conclude that the systems are coeval. The components of the three systems range from mid-K dwarf to mid-M dwarf spectral types.We solved for the planetary properties of each system analytically and via an MCMC algorithm using our independent stellar parameters. The planets range from ∼1.6 to ∼ 4.2 R, mostly Super Earths and mini-Neptunes. As a result of the stellar multiplicity, some planets previously in the Habitable Zone are, in fact, not, and other planets may be habitable depending on their assumed stellar host.

Abstract Copyright:

Journal keyword(s): planetary systems - stars: fundamental parameters - stars: individual: (KIC 6263593, KIC 11497958, KIC 11768142) - techniques: photometric

Simbad objects: 31

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Number of rows : 31
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 Kepler-1735 Ro* 18 44 12.0394205328 +47 11 17.375923248           M0V 33 0
2 Kepler-1418 ** 18 51 59.4020993832 +41 40 42.919668732   16.64 15.37 15.04   ~ 22 0
3 Kepler-1418b Pl 18 51 59.4020993832 +41 40 42.919668732           ~ 9 0
4 Kepler-1026 Ro* 18 54 25.2633595464 +39 59 52.729266012           ~ 25 0
5 Kepler-55 Er* 19 00 40.4013750408 +44 01 35.369032296       15.929   K5 73 1
6 Kepler-1849 Ro* 19 01 10.0654250328 +41 15 20.521091268           ~ 29 0
7 Kepler-10c Pl 19 02 43.0613892904 +50 14 28.701617339           ~ 120 1
8 Kepler-354 Ro* 19 03 00.3548814720 +41 20 08.296950264           K5 30 0
9 Kepler-235 Er* 19 04 18.9842922480 +39 16 41.945483928       16.051   M0V 65 0
10 Kepler-296b Pl 19 06 09.6025302984 +49 26 14.396852760           ~ 28 0
11 Kepler-296f Pl 19 06 09.6025302984 +49 26 14.396852760           ~ 36 0
12 Kepler-296c Pl 19 06 09.6025302984 +49 26 14.396852760           ~ 26 0
13 Kepler-296 ** 19 06 09.6025302984 +49 26 14.396852760           M2V 85 0
14 Kepler-296e Pl 19 06 09.6025302984 +49 26 14.396852760           ~ 32 0
15 Kepler-296d Pl 19 06 09.6025302984 +49 26 14.396852760           ~ 32 0
16 Kepler-310 Er* 19 15 21.4377198432 +46 59 12.293095272       14.287   ~ 53 0
17 Kepler-705 Er* 19 18 02.0398062000 +41 48 43.568864100     16.710     M2V 52 0
18 Kepler-1166 Ro* 19 21 23.6386449456 +50 54 10.221875100           G7 25 0
19 Kepler-53 Er* 19 21 50.8278108312 +40 33 44.887115556   16.283 15.352 15.367   ~ 64 1
20 Kepler-1520 Er* 19 23 51.8899191552 +51 30 16.983425232   17.130 16.117 15.772   ~ 76 1
21 KOI-3259 Ro* 19 26 15.5383531344 +38 04 28.466041692           ~ 23 0
22 Kepler-1151 Ro* 19 28 59.4642009960 +47 52 42.360320964           G5 25 0
23 Kepler-395 Er* 19 34 02.6663128944 +45 08 11.743311228           M1V 46 0
24 Kepler-1652b Pl 19 37 27.8474914056 +49 54 54.080456508           ~ 37 0
25 Kepler-1652 ** 19 37 27.8474914056 +49 54 54.080456508           M2V 43 0
26 Kepler-54 Er* 19 39 05.7418156224 +43 03 22.599784476       15.497   M1V 63 1
27 Kepler-1391 Ro* 19 39 19.4446022448 +46 39 34.503551784           G0IV 36 0
28 KOI-3256 PM* 19 43 49.9200972888 +49 02 27.718492092           ~ 9 0
29 Kepler-233 Ro* 19 45 27.9546068352 +51 19 10.205310144           ~ 31 0
30 Kepler-1176 Ro* 19 51 40.7373905256 +45 16 26.975436204           G3 25 0
31 KOI-1686 Er* 19 54 01.7357889696 +41 28 44.722981092           M2V 20 0

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