2015AJ....149...18K

Query : 2015AJ....149...18K

2015AJ....149...18K - Astron. J., 149, 18 (2015/January-0)

Detection of stars within : ∼0.8 in of Kepler objects of interest.

KOLBL R., MARCY G.W., ISAACSON H. and HOWARD A.W.

Abstract (from CDS):

We present an algorithm to search for the faint spectrum of a second star mixed with the spectrum of a brighter star in high resolution spectra. We model optical stellar spectra as the sum of two input spectra drawn from a vast library of stars throughout the H-R diagram. From typical spectra having a resolution of R = 60,000, we are able to detect companions as faint as 1% relative to the primary star in approximately the V and R bandpasses of photometry. We are also able to find evidence for triple and quadruple systems, given that any additional companions are sufficiently bright. The precise threshold percentage depends on the signal-to-noise of the spectrum and the properties of the two stars. For cases of non-detection, we place a limit on the brightness of any potential companions. This algorithm is useful for detecting faint orbiting companions and background stars that are angularly close to a foreground target star. The size of the entrance slit to the spectrometer, 0.87x3 arcsec (typically), sets the angular domain within which the second star can be detected. We analyzed Keck-HIRES spectra of 1160 California Kepler Survey objects of interest (KOI) searching for the secondary spectra, with the two goals of alerting the community to two possible host stars of the transiting planet and to dilution of the light curve. We report 63 California KOI showing spectroscopic evidence of a secondary star.

Abstract Copyright: ∼

Journal keyword(s): binaries: spectroscopic - methods: statistical - planetary systems - stars: individual: SB2 - techniques: radial velocities - techniques: spectroscopic

Errata: erratum vol. 149, art. 89 (2015)

Simbad objects: 97

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Number of rows : 97
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 12661 PM* 02 04 34.2881404104 +25 24 51.513637932   8.16   7.0   K0V 278 1
2 HD 16702 SB* 02 42 58.6548125592 +58 11 52.101249936   8.89 8.29     G0V 43 1
3 HD 20619 PM* 03 19 01.8943387080 -02 50 35.493108792 7.82 7.697 7.039 6.691 6.343 G1.5V 220 0
4 HD 23356 PM* 03 43 55.3428341807 -19 06 39.233301647 8.711 8.012 7.081 6.555 6.098 K2V 155 0
5 HD 27859 BY* 04 24 28.3269703416 +16 53 10.202918748   8.382 7.790     G2V 245 0
6 G 85-52 PM* 05 12 42.2265729247 +19 39 56.357105394 13.493 12.308 10.746 9.728 8.529 M0V 113 0
7 * psi05 Aur PM* 06 46 44.3369350032 +43 34 38.728429752       4.9   F9V 283 0
8 HD 50281B ** 06 52 18.0415140183 -05 11 24.042331473   11.47 10.05 9.870   M2.5V 140 0
9 HD 51866 PM* 07 01 38.5883864238 +48 22 43.211848633   8.99   7.4   K3V 95 0
10 BD+05 1668 PM* 07 27 24.4989685603 +05 13 32.841491057 12.558 11.443 9.872 8.699 7.161 M3.5V 477 0
11 HD 58727 PM* 07 28 04.3526447256 +30 19 20.649095796       8.4   G5 34 0
12 HD 59582 PM* 07 31 07.7116361934 +14 36 50.915428835 11.133 10.065 8.926 8.255 7.678 K5 70 0
13 HD 61994 SB* 07 47 30.5384617494 +70 12 24.198261184   7.78 7.08     G6V 100 0
14 G 234-35 PM* 08 29 56.3280281730 +61 43 32.738059138   12.129   9.4   K7V 61 0
15 * rho01 Cnc PM* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1223 1
16 Ross 104 PM* 11 00 04.2570074282 +22 49 58.645009946 12.826 11.584 10.020 8.952 7.646 M4V 222 0
17 HD 115675 PM* 13 04 07.3428536856 +87 06 55.538446536       8.1   K0 50 0
18 HD 147750 PM* 16 23 06.0604336350 +17 28 07.659624145   9.18   8.0   G0 62 0
19 HD 148284 SB* 16 25 48.4156410144 +30 15 54.458844696   9.75 9.02     G0 43 0
20 BD+68 946 PM* 17 36 25.8993094605 +68 20 20.909627174 11.73 10.65   8.3   M3.0V 345 0
21 BD+18 3421 PM* 17 37 53.3468417549 +18 35 30.164096453 12.315 11.109 9.577 8.599 7.525 M1.5V 257 0
22 2MASS J18465155+4724517 EB* 18 46 51.5603406384 +47 24 51.814823652           G0 25 0
23 KOI-3527 EB* 18 48 00.2222930592 +44 57 38.821195584           G4V 19 0
24 KOI-3162 Em* 18 48 46.7588779968 +46 31 22.402844904   10.65 10.12     G2 25 0
25 Kepler-1244 EB* 18 49 12.3003098520 +46 30 58.313647872   12.906 12.384 12.388   F5 36 0
26 Kepler-62 Er* 18 52 51.0518497680 +45 20 59.399622996   14.702 13.982 13.807   G5 158 1
27 KOI-3602 EB* 18 54 12.6019907832 +48 13 22.553757012           G0V 19 0
28 KOI-4713 ** 18 55 21.319152 +40 25 19.13016   14.78 13.98 13.83   G2V 17 0
29 Kepler-907 EB* 19 01 54.3849990816 +41 37 57.917209008   12.017 11.549 11.483   F5V 59 0
30 KOI-1326 EB* 19 07 20.3696289240 +39 45 39.102265332           ~ 26 0
31 KOI-3243 EB* 19 07 26.3539496352 +46 37 31.796408316           G0V 13 0
32 BD+37 3347 SB* 19 08 13.7796264264 +37 59 28.920842340   9.99 9.58     F3III 24 0
33 Kepler-1185 SB* 19 08 57.8786105808 +39 19 57.933753168           F9 54 0
34 KOI-3837 EB* 19 09 29.2238538288 +46 33 53.362091232           ~ 21 0
35 KOI-3853 SB* 19 09 52.2909179328 +37 57 59.926091076   11.77 11.01 10.65   ~ 41 0
36 Kepler-1076 Ro* 19 10 21.6538071000 +51 03 38.049645672   14.34 13.17 12.90   K2 51 0
37 KOI-969 EB* 19 10 27.9170842704 +39 07 38.035416108   13.02 12.39     G0V 31 0
38 KOI-4871 * 19 14 06.9713239919 +42 16 34.495704528           F5 21 0
39 Kepler-1493 ** 19 14 11.802360 +38 33 54.75708       13.12   G3 28 0
40 Kepler-16 SB* 19 16 18.1758378936 +51 45 26.782726104   12.1   11.90   K7V 274 1
41 KOI-3573 EB* 19 17 03.3984262560 +47 00 21.515865480           ~ 22 0
42 KOI-3528 SB* 19 18 47.2915241448 +39 22 17.873193216           G0V 26 0
43 KOI-5 EB* 19 18 57.5306473320 +44 38 50.618934060   12.560 11.735 11.613   G2V 91 0
44 Kepler-1084 Er* 19 20 24.4739815992 +48 15 04.077494820   12.971 12.274 12.181   F8V 46 0
45 KOI-3875 EB* 19 20 35.7939616608 +50 14 21.054353460           ~ 17 0
46 KOI-1121 EB* 19 21 24.6996580992 +41 46 11.008561116           ~ 28 0
47 KOI-4457 EB* 19 22 02.9879571240 +50 38 57.519780576           F7IV 30 0
48 KOI-3000 EB* 19 23 53.3418301896 +40 59 40.827790716           ~ 15 0
49 Kepler-1973 ** 19 24 11.698320 +36 50 23.55432   12.78 11.88 11.56   K1V 64 0
50 KOI-2965 EB* 19 25 13.7968585512 +44 27 27.471126924           F5 13 0
51 KOI-3216 Er* 19 25 28.9275412584 +47 26 08.007253152   12.791 12.171 12.015   G2V 27 0
52 KOI-4345 EB* 19 26 00.3010294800 +47 44 51.882403020           ~ 19 0
53 KOI-2787 EB* 19 26 44.5779747024 +39 25 43.911086700           ~ 15 0
54 Kepler-1406 EB* 19 28 19.6607690328 +38 54 54.078107076           G1 24 0
55 KOI-3557 EB* 19 29 02.5035066672 +40 42 13.250415780           F6V 27 0
56 KOI-3606 EB* 19 29 04.2439945944 +47 23 41.151267204           ~ 18 0
57 KOI-151 Er* 19 29 29.9430043800 +37 37 51.489794280   14.672 14.100 14.016   ~ 44 0
58 KOI-3515 SB* 19 30 51.1626364344 +38 22 10.726753512           ~ 22 0
59 KOI-1020 EB* 19 31 43.4064937992 +37 36 23.907731148   13.643 12.996 12.917   F8V 45 0
60 KOI-1452 EB* 19 33 07.5703260432 +43 03 20.984216940   14.02 13.68 13.58   F2V 48 0
61 KOI-1684 EB* 19 34 08.2780785816 +41 19 47.665379172           ~ 31 0
62 Kepler-636 ** 19 34 22.05336 +41 05 42.5796   14.890 13.930 13.666   G9 53 0
63 KOI-698 SB* 19 35 39.2792034624 +45 11 23.326491408           ~ 39 0
64 KOI-4355 ** 19 36 49.7383043784 +39 40 48.007582644           ~ 7 0
65 Kepler-35 EB* 19 37 59.2726213344 +46 41 22.952695956           ~ 146 1
66 KOI-1796 EB* 19 39 39.8653826352 +46 56 41.941742100           G0V 37 0
67 KOI-3782 EB* 19 40 20.9282560200 +49 10 11.749592100           ~ 27 0
68 KOI-2867 SB* 19 40 36.1189534152 +46 46 20.415288612           K3 29 0
69 KOI-3721 EB* 19 40 37.1726785104 +43 26 39.510438072           ~ 19 0
70 Kepler-61 Er* 19 41 13.0815154104 +42 28 30.983971944     15.17 15.06 13.95 M0V 55 1
71 KOI-2813 ** 19 41 22.119120 +48 51 22.14108   14.736 13.884 13.514   G6V 47 0
72 KOI-3605 EB* 19 43 21.2016468504 +41 25 38.374272732           ~ 20 0
73 KOI-2215 EB* 19 45 01.2141434232 +42 31 48.829542492           F6V 31 0
74 Kepler-534 EB* 19 45 40.4539532688 +49 32 24.348992604   13.866 13.141 13.296   ~ 50 0
75 Kepler-34 EB* 19 45 44.5974898536 +44 38 29.610983076           ~ 181 1
76 HD 187091 EB* 19 46 15.5312943504 +43 56 51.341798220   8.53 8.39     kA3hA5mA5(IV)sAm: 98 0
77 KOI-1152 Ro* 19 46 46.951416 +47 19 38.25732       14.06   M1V 37 0
78 KOI-3471 EB* 19 48 40.7490633384 +50 08 50.631296496           K3V 27 0
79 Kepler-494 Ro* 19 48 51.3750498576 +41 39 50.524488036           ~ 41 0
80 KOI-716 Ro* 19 49 58.1189528472 +46 41 40.287105240           ~ 35 0
81 KOI-1784 EB* 19 50 35.0583308352 +47 10 02.969179968   14.35 13.72 13.64   G2V 38 0
82 KOI-1227 SB* 19 50 49.7128745352 +42 02 50.518650768           ~ 42 0
83 Kepler-1647 EB* 19 52 36.0203935200 +40 39 22.342749552           F5 84 0
84 KOI-1645 EB* 19 52 50.6301785688 +48 33 32.847322464           ~ 24 0
85 KOI-3231 SB* 19 53 26.0618813640 +47 38 18.956298264           F6IV 20 0
86 KOI-3035 EB* 19 53 26.8507583376 +41 46 52.068602964           ~ 11 0
87 KOI-3583 EB* 19 56 52.6739836368 +40 12 44.316165708           A7III 23 0
88 KOI-3506 gD* 20 04 35.0512087992 +44 52 10.780228596           ~ 21 0
89 KOI-1137 EB* 20 06 50.2288958712 +44 16 54.635439756           ~ 20 0
90 BD+06 4450 PM* 20 08 24.3667909488 +06 40 43.456973520   10.99   9.2   K8 37 0
91 BD+70 1157 PM* 21 00 03.4381895448 +70 40 07.246183080   10.41   8.6   K4V 30 0
92 HD 203040 PM* 21 20 13.8213371190 -19 51 08.223845338 11.706 10.452 9.086 8.244 7.497 K6.5Vk 79 0
93 HD 205351 PM* 21 33 54.3296772816 +32 52 09.068490660   9.04 8.41     G5 37 0
94 HD 205855 PM* 21 38 08.4250884196 -02 18 11.335319543   9.46 8.62     K0/1V 76 0
95 HD 216520 PM* 22 47 31.8776928072 +83 41 49.302237984       7.0   K0V 78 0
96 HD 217357 PM* 23 00 16.1221501260 -22 31 27.649676482 10.494 9.251 7.869 7.014 6.238 K7+Vk 197 0
97 HD 220221 PM* 23 21 44.4512642400 +45 10 33.792347820       7.5   K3V(k) 61 0

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