2015AJ....149...24G


Query : 2015AJ....149...24G

2015AJ....149...24G - Astron. J., 149, 24 (2015/January-0)

Hubble Space Telescope high-resolution imaging of Kepler small and cool exoplanet host stars.

GILLILAND R.L., CARTIER K.M.S., ADAMS E.R., CIARDI D.R., KALAS P. and WRIGHT J.T.

Abstract (from CDS):

High-resolution imaging is an important tool for follow-up study of exoplanet candidates found via transit detection with the Kepler mission. We discuss here Hubble Space Telescope imaging with the WFC3 of 23 stars that host particularly interesting Kepler planet candidates based on their small size and cool equilibrium temperature estimates.
Result. include detections, exclusion of background stars that could be a source of false positives for the transits, and detection of physically associated companions in a number of cases providing dilution measures necessary for planet parameter refinement. For six Kepler objects of interest, we find that there is ambiguity regarding which star hosts the transiting planet(s), with potentially strong implications for planetary characteristics. Our sample is evenly distributed in G, K, and M spectral types. Albeit with a small sample size, we find that physically associated binaries are more common than expected at each spectral type, reaching a factor of 10 frequency excess in M. We document the program detection sensitivities, detections, and deliverables to the Kepler follow-up program archive.

Abstract Copyright:

Journal keyword(s): binaries: general - planetary systems - stars: late-type - stars: statistics

CDS comments: KIC 11306996 is a misprint for KIC 11305996.

Simbad objects: 26

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Number of rows : 26
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 2MASS J18515781+4140586 * 18 51 57.8283092616 +41 40 58.568771748           ~ 1 0
3 KIC 6263592 * 18 51 59.1902480232 +41 40 26.357948112           ~ 1 0
4 Kepler-1418 ** 18 51 59.4020993832 +41 40 42.919668732   16.64 15.37 15.04   ~ 22 0
5 2MASS J18515956+4140290 * 18 51 59.5454390688 +41 40 28.907638536           ~ 1 0
6 Kepler-1026 Ro* 18 54 25.2633595464 +39 59 52.729266012           ~ 25 0
7 Kepler-55 Er* 19 00 40.4013750408 +44 01 35.369032296       15.929   K5 73 1
8 Kepler-1849 Ro* 19 01 10.0654250328 +41 15 20.521091268           ~ 29 0
9 Kepler-354 Ro* 19 03 00.3548814720 +41 20 08.296950264           K5 30 0
10 Kepler-235 Er* 19 04 18.9842922480 +39 16 41.945483928       16.051   M0V 65 0
11 Kepler-296 ** 19 06 09.6025302984 +49 26 14.396852760           M2V 85 0
12 Kepler-310 Er* 19 15 21.4377198432 +46 59 12.293095272       14.287   ~ 53 0
13 Kepler-705 Er* 19 18 02.0398062000 +41 48 43.568864100     16.710     M2V 52 0
14 Kepler-1166 Ro* 19 21 23.6386449456 +50 54 10.221875100           G7 25 0
15 Kepler-53 Er* 19 21 50.8278108312 +40 33 44.887115556   16.283 15.352 15.367   ~ 64 1
16 Kepler-1520 Er* 19 23 51.8899191552 +51 30 16.983425232   17.130 16.117 15.772   ~ 76 1
17 KOI-3259 Ro* 19 26 15.5383531344 +38 04 28.466041692           ~ 23 0
18 Kepler-1151 Ro* 19 28 59.4642009960 +47 52 42.360320964           G5 25 0
19 Kepler-395 Er* 19 34 02.6663128944 +45 08 11.743311228           M1V 46 0
20 Kepler-1652 ** 19 37 27.8474914056 +49 54 54.080456508           M2V 43 0
21 Kepler-54 Er* 19 39 05.7418156224 +43 03 22.599784476       15.497   M1V 63 1
22 Kepler-1391 Ro* 19 39 19.4446022448 +46 39 34.503551784           G0IV 36 0
23 KOI-3256 PM* 19 43 49.9200972888 +49 02 27.718492092           ~ 9 0
24 Kepler-233 Ro* 19 45 27.9546068352 +51 19 10.205310144           ~ 31 0
25 Kepler-1176 Ro* 19 51 40.7373905256 +45 16 26.975436204           G3 25 0
26 KOI-1686 Er* 19 54 01.7357889696 +41 28 44.722981092           M2V 20 0

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