2018AJ....155..177D

Query : 2018AJ....155..177D

2018AJ....155..177D - Astron. J., 155, 177-177 (2018/April-0)

Stellar obliquity and magnetic activity of planet-hosting stars and eclipsing binaries based on transit chord correlation.

DAI F., WINN J.N., BERTA-THOMPSON Z., SANCHIS-OJEDA R. and ALBRECHT S.

Abstract (from CDS):

The light curve of an eclipsing system shows anomalies whenever the eclipsing body passes in front of active regions on the eclipsed star. In some cases, the pattern of anomalies can be used to determine the obliquity Ψ of the eclipsed star. Here we present a method for detecting and analyzing these patterns, based on a statistical test for correlations between the anomalies observed in a sequence of eclipses. Compared to previous methods, ours makes fewer assumptions and is easier to automate. We apply it to a sample of 64 stars with transiting planets and 24 eclipsing binaries for which precise space-based data are available, and for which there was either some indication of flux anomalies or a previously reported obliquity measurement. We were able to determine obliquities for 10 stars with hot Jupiters. In particular we found Ψ <= 10° for Kepler-45, which is only the second M dwarf with a measured obliquity. The other eight cases are G and K stars with low obliquities. Among the eclipsing binaries, we were able to determine obliquities in eight cases, all of which are consistent with zero. Our results also reveal some common patterns of stellar activity for magnetically active G and K stars, including persistently active longitudes.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: eclipsing - planetary systems - planets and satellites: general - stars: activity - stars: rotation - starspots

VizieR on-line data: <Available at CDS (J/AJ/155/177): table1.dat table2.dat>

Simbad objects: 124

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Number of rows : 124
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 WASP-118 EB* 01 18 12.1380145320 +02 42 10.253096496   11.56 11.04 10.98   ~ 34 0
2 WASP-118b Pl 01 18 12.1380145320 +02 42 10.253096496           ~ 20 0
3 NGTS-1b Pl 05 30 51.4522649760 -36 37 50.895680268           ~ 60 0
4 HATS-6b Pl 05 52 35.2366980288 -19 01 53.970810276           ~ 67 0
5 CoRoT-19 * 06 28 08.0586807504 -00 10 14.532816504   14.780 14.007 14.17 13.00 ~ 43 1
6 CoRoT-19b Pl 06 28 08.0586807504 -00 10 14.532816504           ~ 35 1
7 CoRoT-15b BD? 06 28 27.8204 +06 11 10.477   17.012 15.997 15.807   ~ 49 1
8 CoRoT-20b Pl 06 30 52.9022402976 +00 13 36.858436428           ~ 43 1
9 CoRoT-18 * 06 32 41.3776636176 -00 01 53.725599732   15.8 15.00 14.9 14.05 ~ 55 2
10 CoRoT-18b Pl 06 32 41.3776636176 -00 01 53.725599732           ~ 45 1
11 CoRoT-12b Pl 06 43 03.7630314144 -01 17 47.144066352           ~ 39 1
12 CoRoT-7b Pl 06 43 49.4690164104 -01 03 46.826642700           ~ 422 1
13 CoRoT-21b Pl 06 44 12.6302250707 -00 17 56.987010804           ~ 22 2
14 CoRoT-5b Pl 06 45 06.5406550272 +00 48 54.905787036           ~ 52 1
15 CoRoT-24b Pl 06 47 41.4118109352 -03 43 09.483840696           ~ 24 0
16 CoRoT-1b Pl 06 48 19.1723766840 -03 06 07.710745140           ~ 187 1
17 CoRoT-4b Pl 06 48 46.7134456728 -00 40 21.969631416           ~ 69 1
18 CoRoT-13b Pl 06 50 53.0726565720 -05 05 11.190799896           ~ 38 1
19 CoRoT-14b Pl 06 53 41.8087553160 -05 32 09.683309760           ~ 39 1
20 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 913 1
21 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 750 1
22 NAME BD+07 2474Ab Pl 11 43 38.0082455016 +06 33 49.448063160           ~ 24 0
23 BD+07 2474 ** 11 43 38.016288 +06 33 49.41900   11.15 10.41 10.34   G5 41 0
24 WASP-107 PM* 12 33 32.8441110816 -10 08 46.225572324   14.62 11.47     K7V 121 0
25 WASP-107b Pl 12 33 32.8441110816 -10 08 46.225572324           ~ 289 0
26 WASP-55 * 13 35 01.9537865424 -17 30 12.527623872   12.69 11.75     G1 74 1
27 WASP-55b Pl 13 35 01.9537865424 -17 30 12.527623872           ~ 35 1
28 Qatar 2 PM* 13 50 37.4100326640 -06 48 14.421574044   14.0   13.45   K5V 72 1
29 Qatar 2b Pl 13 50 37.4100326640 -06 48 14.421574044           ~ 55 1
30 CD-27 10695b Pl 15 59 50.9491505016 -28 03 42.312819096           ~ 313 1
31 CoRoT-27b Pl 18 33 58.9993615272 +05 32 18.324717936           ~ 24 0
32 CoRoT-16b Pl 18 34 05.9187219720 -06 00 09.244242972           ~ 28 2
33 CoRoT-28b Pl 18 34 45.2033421048 +05 34 25.392017208           ~ 12 0
34 CoRoT-17b Pl 18 34 47.8211904504 -06 36 44.113807836           ~ 29 1
35 CoRoT-29b Pl 18 35 36.5005092480 +06 28 46.676155692           ~ 16 0
36 CoRoT-26b Pl 18 39 00.1188469512 +06 58 11.328734244           ~ 12 1
37 CoRoT-23b Pl 18 39 07.8405328128 +04 21 28.034371188           ~ 24 1
38 CoRoT-25b Pl 18 42 31.1200340280 +06 30 49.746776256           ~ 12 1
39 CoRoT-22b Pl 18 42 40.1113260240 +06 13 08.982874128           ~ 17 1
40 CoRoT-11b Pl 18 42 44.9499236256 +05 56 15.652972716           ~ 52 1
41 CoRoT-11 EB* 18 42 44.9499236256 +05 56 15.652972716   13.488 12.869 12.869   F6V 57 1
42 CoRoT-9b Pl 18 43 08.8100358120 +06 12 14.913236808           ~ 73 1
43 CoRoT-6b Pl 18 44 17.4078666144 +06 39 47.513042100           ~ 49 1
44 Kepler-8 Ro* 18 45 09.1489991376 +42 27 03.891327156           F6V 121 1
45 Kepler-8b Pl 18 45 09.1489991376 +42 27 03.891327156           ~ 98 1
46 KOI-6167 RS* 18 52 15.9054098640 +43 44 36.824742420           ~ 28 0
47 KOI-1539 EB* 18 58 39.3598824600 +43 59 06.055701144           ~ 33 0
48 Kepler-25c Pl 19 06 33.2141354736 +39 29 16.358725104           ~ 103 1
49 Kepler-25 Er* 19 06 33.2141354736 +39 29 16.358725104   11.337 10.623 10.622   F6 192 1
50 Kepler-1b Pl 19 07 14.0375836512 +49 18 59.091482160           ~ 349 2
51 Kepler-1B * 19 07 14.113 +49 18 58.29           K4.5-6 23 1
52 BD+46 2629 ** 19 07 53.104944 +46 52 06.00420   10.12 9.70 9.80   kA2hA5mA7(IV)m: 173 0
53 BD+46 2629A * 19 07 53.1397066992 +46 52 05.922122844           ~ 48 1
54 NAME BD+46 2629Ab Pl 19 07 53.1397066992 +46 52 05.922122844           ~ 181 1
55 Kepler-522b Pl 19 12 36.9592398312 +44 04 07.776369660           ~ 30 0
56 Kepler-7b Pl 19 14 19.5623105760 +41 05 23.367379128           ~ 222 1
57 KOI-6117 EB* 19 15 39.6816699600 +39 48 17.952979464           G5 21 0
58 Kepler-63b Pl 19 16 54.2861367672 +49 32 53.451062520           ~ 87 1
59 Kepler-63 Er* 19 16 54.2861367672 +49 32 53.451062520   12.449 11.733 11.701   G2V 145 1
60 HATS-11b Pl 19 17 36.1801425096 -22 23 23.721674100           ~ 23 0
61 HATS-11 * 19 17 36.1801425096 -22 23 23.721674100   14.657 14.018     ~ 20 0
62 KOI-6616 EB* 19 20 36.8026298424 +40 54 05.833014876           G0 19 0
63 KOI-1003 RS* 19 21 18.6969974520 +37 43 36.184313172   17.461 16.524 15.929   G8IV-V 33 0
64 KOI-1543 EB* 19 21 47.3733769440 +40 26 34.436284908           G0V 26 0
65 HATS-9 * 19 23 14.4313681872 -20 09 58.848967836   14.080 13.276     ~ 30 0
66 HATS-9b Pl 19 23 14.4313681872 -20 09 58.848967836           ~ 27 0
67 KOI-6055 EB* 19 23 34.0096796616 +44 10 07.771544364           ~ 15 0
68 CoRoT-10b Pl 19 24 15.2869439208 +00 44 46.002641280           ~ 61 1
69 KOI-1729 RS* 19 24 21.9931410120 +42 03 30.517883568   16.398 15.555 14.962   ~ 24 0
70 Kepler-420 Ro* 19 24 54.0364030656 +44 55 38.524017504   15.830 14.867     G5V 66 0
71 Kepler-420b Pl 19 24 54.0364030656 +44 55 38.524017504           ~ 47 0
72 Kepler-762 Er* 19 25 06.1559518944 +47 19 46.243924392       15.770   ~ 34 0
73 Kepler-762b Pl 19 25 06.1559518944 +47 19 46.243924392           ~ 23 0
74 KOI-637 EB* 19 26 15.2056353624 +40 16 03.941516136           ~ 19 0
75 CoRoT-8b Pl 19 26 21.2425572360 +01 25 35.177500524           ~ 59 1
76 CoRoT-2b Pl 19 27 06.4944378024 +01 23 01.359897468           ~ 256 1
77 CoRoT-2 * 19 27 06.4944378024 +01 23 01.359897468   13.422 12.568 12.204 11.49 G7V+K9V 267 2
78 KOI-7545 EB* 19 27 43.2200213736 +39 04 19.397485020           ~ 36 0
79 V* V461 Lyr EB* 19 27 55.2610892472 +41 33 33.903706644     12.905   11.753 G9 45 0
80 CoRoT-3 EB* 19 28 13.2642131544 +00 07 18.613986132   14.199 13.292 13.099 12.54 F3V 86 1
81 CoRoT-3b Pl 19 28 13.2642131544 +00 07 18.613986132           ~ 148 1
82 BD+47 2846 Er* 19 28 59.3538826128 +47 58 10.217007804   10.97 10.48     F6V 343 1
83 BD+47 2846b Pl 19 28 59.3538826128 +47 58 10.217007804           ~ 415 1
84 KOI-6031 EB* 19 30 31.4687922696 +42 10 50.783689596           G7 27 0
85 Kepler-423b Pl 19 31 25.3755434664 +46 23 28.220459784           ~ 39 0
86 Kepler-423 Ro* 19 31 25.3755434664 +46 23 28.220459784           F9 81 0
87 KOI-606 EB* 19 31 28.900392 +40 06 19.31508   15.064 14.487 14.173   ~ 20 0
88 Kepler-45b Pl 19 31 29.4966491088 +41 03 51.356401092           ~ 99 1
89 Kepler-45 Ro* 19 31 29.4966491088 +41 03 51.356401092     16.88 16.63   M1V 120 1
90 Kepler-74b Pl 19 32 22.2086887440 +41 21 19.907283744           ~ 48 1
91 KOI-6537 RG* 19 34 38.4254635344 +40 21 51.176534292           ~ 29 0
92 KOI-1223 * 19 35 15.1036453992 +42 02 55.401598968           ~ 14 1
93 KOI-1545 EB* 19 35 20.8548445368 +40 24 37.562735268   15.023 14.332 15.206   ~ 16 0
94 KOI-831 EB* 19 36 13.6334758464 +40 32 58.841489040           ~ 16 0
95 KOI-1786 LP* 19 36 49.6762992816 +38 13 24.460556448   16.467 15.108 14.791   K1V 42 1
96 Kepler-71 Ro* 19 39 27.7155573840 +46 17 08.941351920       15.35   G8V 78 1
97 Kepler-71b Pl 19 39 27.7155573840 +46 17 08.941351920           ~ 32 1
98 Kepler-485b Pl 19 39 59.1150655776 +50 28 12.194378292           ~ 26 0
99 KOI-182 EB* 19 42 41.1154269672 +40 35 56.703235200           ~ 27 0
100 KOI-212.01 Pl? 19 44 33.5492190048 +41 36 11.405080908           ~ 12 0
101 NAME KIC 7767559b Pl? 19 45 38.4462585912 +43 27 19.323182088           ~ 13 0
102 KOI-895 Er* 19 45 38.4462585912 +43 27 19.323182088   16.551 15.572 15.591   ~ 33 0
103 KOI-1741 EB* 19 45 58.4592234552 +44 03 08.346686076           ~ 17 0
104 KOI-883 BY* 19 46 43.9374116784 +42 58 04.356492672           K2V 49 0
105 KOI-883.01 Pl? 19 46 43.9374116784 +42 58 04.356492672           ~ 23 0
106 Kepler-96b Pl 19 48 16.7135669520 +40 31 30.523868868           ~ 51 0
107 Kepler-494b Pl 19 48 51.3750498576 +41 39 50.524488036           ~ 17 0
108 Kepler-448b Pl 19 49 48.8933114592 +41 00 39.630681720           ~ 52 0
109 Kepler-448 Er* 19 49 48.8933114592 +41 00 39.630681720   11.73 11.51     F5IV 89 0
110 BD+47 2936 EB* 19 50 50.2472976936 +48 04 51.101390496       8.8   K4V 359 1
111 BD+47 2936b Pl 19 50 50.2472976936 +48 04 51.101390496           ~ 493 1
112 KOI-1120 RG* 19 51 01.6999493832 +41 40 49.631721132           G5 43 0
113 KOI-425.01 Pl? 19 51 53.8290274752 +46 48 16.271266212           ~ 10 0
114 Kepler-17 Ro* 19 53 34.8643397568 +47 48 54.049530564   14.6   13.6   G5V 175 1
115 Kepler-17b Pl 19 53 34.8643397568 +47 48 54.049530564           ~ 110 1
116 KOI-6730 EB* 19 54 10.1965128504 +41 57 11.520912168           G6V 28 0
117 Kepler-471b Pl 19 56 23.4090904944 +43 29 51.340532928           ~ 25 0
118 Kepler-539b Pl 19 56 29.3871979920 +41 52 00.317369676           ~ 49 0
119 KOI-6561 EB* 19 56 51.3387961368 +40 27 30.187216476           ~ 22 0
120 Kepler-548b Pl 19 59 37.4206571400 +45 26 22.831393344           ~ 22 0
121 WASP-47 * 22 04 48.7261549272 -12 01 07.998743676     11.99 11.82   ~ 217 1
122 WASP-47b Pl 22 04 48.7261549272 -12 01 07.998743676           ~ 116 1
123 BD-11 5929b Pl 22 49 32.5676223552 -10 40 31.926201744           ~ 26 1
124 BD-11 5929 PM* 22 49 32.5676223552 -10 40 31.926201744   12.05 11.46     ~ 42 1

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