2011AJ....141...59B

Query : 2011AJ....141...59B

2011AJ....141...59B - Astron. J., 141, 59 (2011/February-0)

The reflection effect in interacting binaries or in planet-star systems.

BUDAJ J.

Abstract (from CDS):

There are many similarities between interacting binary stars and stars with a close-in giant extrasolar planet. The reflection effect is a well-known example. Although the generally accepted treatment of this effect in interacting binaries is successful in fitting light curves of eclipsing binaries, it is not very suitable for studying cold objects irradiated by hot objects or extrasolar planets. The aim of this paper is to develop a model of the reflection effect which could be easily incorporated into the present codes for modeling of interacting binaries so that these can be used to study the aforementioned objects. Our model of the reflection effect takes into account the reflection (scattering), heating, and heat redistribution over the surface of the irradiated object. The shape of the object is described by the non-spherical Roche potential expected for close objects. Limb and gravity darkening are included in the calculations of the light output from the system. The model also accounts for the orbital revolution and rotation of the exoplanet with appropriate Doppler shifts for the scattered and thermal radiation. Subsequently, light curves and/or spectra of several exoplanets have been modeled and the effects of the heat redistribution, limb darkening/brightening, (non-)gray albedo, and non-spherical shape have been studied. Recent observations of planet-to-star flux ratio of HD189733b, WASP12b, and WASP-19b at various phases were reproduced with very good accuracy. It was found that HD189733b has a low Bond albedo and intense heat redistribution, while WASP-19b has a low Bond albedo and low heat redistribution. The exact Roche geometries and temperature distributions over the surface of all 78 transiting extrasolar planets have been determined. Departures from the spherical shape may vary considerably but departures of about 1% in the radius are common within the sample. In some cases, these departures can reach 8%, 12%, or 14%, for WASP-33b, WASP-19b, and WASP-12b, respectively. The mean temperatures of these planets also vary considerably from 300 K to 2600 K. The extreme cases are WASP-18b, WASP-12b, and WASP-33b, with mean temperatures of 2330 K, 2430 K, and 2600 K, respectively.

Abstract Copyright: ∼

Journal keyword(s): binaries: close - binaries: eclipsing - brown dwarfs - planetary systems - stars: low-mass

Simbad objects: 80

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Number of rows : 80
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-26b Pl 00 18 24.7008060816 -15 16 02.275778784           ~ 50 1
2 WASP-1b Pl 00 20 40.0745768856 +31 59 23.954809596           ~ 134 1
3 HD 10069b Pl 01 37 25.0332798696 -45 40 40.374717456           ~ 444 1
4 HD 15082b Pl 02 26 51.0582618096 +37 33 01.736482032           ~ 403 1
5 HD 17156b Pl 02 49 44.4871034544 +71 45 11.629235988           ~ 197 1
6 WASP-11b Pl 03 09 28.5433589520 +30 40 24.862993356           ~ 83 1
7 WASP-22b Pl 03 31 16.3267124400 -23 49 10.840600632           ~ 51 1
8 BD+57 793b Pl 04 21 52.7048156328 +57 49 01.889294952           ~ 234 1
9 WASP-12b Pl 06 30 32.7966092352 +29 40 20.263502460           ~ 847 1
10 CoRoT-7b Pl 06 43 49.4690164104 -01 03 46.826642700           ~ 422 1
11 CoRoT-5b Pl 06 45 06.5406550272 +00 48 54.905787036           ~ 52 1
12 CoRoT-1b Pl 06 48 19.1723766840 -03 06 07.710745140           ~ 187 1
13 CoRoT-4b Pl 06 48 46.7134456728 -00 40 21.969631416           ~ 69 1
14 HAT-P-9b Pl 07 20 40.4564614032 +37 08 26.342829060           ~ 73 1
15 XO-4b Pl 07 21 33.1602434760 +58 16 05.109533364           ~ 76 1
16 XO-5b Pl 07 46 51.9614762400 +39 05 40.460854956           ~ 58 1
17 BD+50 1471b Pl 07 48 06.4723053776 +50 13 32.920598923           ~ 170 1
18 HAT-P-13b Pl 08 39 31.8072358440 +47 21 07.273799280           ~ 128 1
19 BD+34 1976b Pl 09 20 24.7145388600 +33 52 56.696039796           ~ 69 1
20 HD 80606b Pl 09 22 37.5768032712 +50 36 13.435326684           ~ 369 1
21 WASP-19b Pl 09 53 40.0765648584 -45 39 33.057187596           ~ 423 1
22 NAME OGLE-TR 211b Pl 10 40 14.3828284632 -62 27 20.018236464           ~ 31 1
23 NAME OGLE-TR-132b Pl 10 50 34.5943868112 -61 57 26.138690064           ~ 105 1
24 NAME OGLE-TR-113b Pl 10 52 24.2810533560 -61 26 48.845675976           ~ 120 1
25 NAME OGLE-TR-111b Pl 10 53 17.8069115424 -61 24 20.607791112           ~ 114 1
26 NAME OGLE-TR 182b Pl 11 09 18.7248783144 -61 05 42.962710884           ~ 37 1
27 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 913 1
28 WASP-25b Pl 13 01 26.3760406392 -27 31 19.922387484           ~ 50 1
29 HAT-P-3b Pl 13 44 22.5937349736 +48 01 43.205733624           ~ 113 1
30 CD-31 10766b Pl 13 55 42.7120177608 -32 09 34.616222028           ~ 84 1
31 HAT-P-12b Pl 13 57 33.4668726399 +43 29 36.601508739           ~ 201 1
32 WASP-16b Pl 14 18 43.9225013904 -20 16 31.843626168           ~ 60 1
33 BD+22 2716b Pl 14 33 06.3571702344 +21 53 40.981395876           ~ 170 1
34 WASP-24b Pl 15 08 51.7367171808 +02 20 35.962165104           ~ 58 1
35 BD+36 2593b Pl 15 19 57.9203617176 +36 13 46.738078788           ~ 86 1
36 Lupus-TR 3b Pl 15 30 18.6671811840 -42 58 41.663992332           ~ 19 1
37 CD-27 10695b Pl 15 59 50.9491505016 -28 03 42.312819096           ~ 313 1
38 BD+28 2507b Pl 16 02 11.8462322592 +28 10 10.420201452           ~ 195 1
39 HD 147506b Pl 16 20 36.3576063720 +41 02 53.106772488           ~ 274 1
40 HD 149026b Pl 16 30 29.6185771608 +38 20 50.308980864           ~ 388 1
41 NAME G 139-21b Pl 17 15 18.9339850845 +04 57 50.066612336           ~ 845 1
42 BD+38 2917b Pl 17 20 27.8781604680 +38 14 31.908984936           ~ 95 1
43 NAME OGLE-TR-10b Pl 17 51 28.2593510544 -29 52 35.231024064           ~ 90 1
44 TrES-3 Pl 17 52 07.0184259768 +37 32 46.237377840           ~ 245 2
45 TOI-2124b Pl 17 53 13.0489562760 +37 12 42.586493328           ~ 228 2
46 NAME OGLE-TR-56b Pl 17 56 35.5016678064 -29 32 21.479240220           ~ 202 1
47 SWEEPS 4 Pl 17 58 53.92 -29 11 20.6     18.80   17.70 ~ 28 1
48 SWEEPS 11 Pl 17 59 02.67 -29 11 53.5           ~ 30 1
49 HAT-P-5b Pl 18 17 37.3126923960 +36 37 17.170401468           ~ 71 1
50 BD+35 3293b Pl 18 34 31.6252443960 +35 39 41.491899468           ~ 126 1
51 CoRoT-9b Pl 18 43 08.8100358120 +06 12 14.913236808           ~ 73 1
52 CoRoT-6b Pl 18 44 17.4078666144 +06 39 47.513042100           ~ 49 1
53 Kepler-8b Pl 18 45 09.1489991376 +42 27 03.891327156           ~ 98 1
54 Kepler-4b Pl 19 02 27.6979514832 +50 08 08.703945600           ~ 105 1
55 NAME V672 Lyr b Pl 19 04 09.8515616256 +36 37 57.446680296           ~ 354 1
56 Kepler-1b Pl 19 07 14.0375836512 +49 18 59.091482160           ~ 349 2
57 Kepler-7b Pl 19 14 19.5623105760 +41 05 23.367379128           ~ 222 1
58 HD 179949b Pl 19 15 33.2300695008 -24 10 45.671448072           ~ 135 1
59 CoRoT-2b Pl 19 27 06.4944378024 +01 23 01.359897468           ~ 256 1
60 CoRoT-3b Pl 19 28 13.2642131544 +00 07 18.613986132           ~ 148 1
61 BD+47 2846 Er* 19 28 59.3538826128 +47 58 10.217007804   10.97 10.48     F6V 343 1
62 BD+47 2846b Pl 19 28 59.3538826128 +47 58 10.217007804           ~ 415 1
63 Kepler-6b Pl 19 47 20.9379557640 +48 14 23.759029608           ~ 106 1
64 BD+47 2936b Pl 19 50 50.2472976936 +48 04 51.101390496           ~ 493 1
65 Kepler-5b Pl 19 57 37.6884643560 +44 02 06.189718884           ~ 106 1
66 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1
67 WASP-2b Pl 20 30 54.1282355304 +06 25 46.341284844           ~ 112 1
68 HD 197286b Pl 20 44 10.2208462488 -39 13 30.855881604           ~ 76 1
69 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 2037 1
70 BD+34 4779b Pl 22 52 09.8636387352 +35 26 49.608422844           ~ 85 1
71 NAME BD+37 4734Bb Pl 22 57 46.8442481880 +38 40 30.358351704           ~ 268 1
72 WASP-21b Pl 23 09 58.2534443016 +18 23 45.885822792           ~ 71 1
73 WASP-6b Pl 23 12 37.7368282608 -22 40 26.273805024           ~ 150 1
74 WASP-10b Pl 23 15 58.3006181424 +31 27 46.296056268           ~ 118 1
75 WASP-4b Pl 23 34 15.0857248317 -42 03 41.047972591           ~ 197 1
76 K2-1b Pl 23 34 27.8814904872 -01 34 48.110067912           ~ 43 1
77 BD+41 4831b Pl 23 39 05.8102996968 +42 27 57.505293900           ~ 94 1
78 CD-40 15273b Pl 23 51 31.0839097560 -39 54 24.258188484           ~ 88 1
79 WASP-5b Pl 23 57 23.7564672192 -41 16 37.743700800           ~ 103 1
80 CD-35 16019b Pl 23 59 36.0711872328 -35 01 52.923618408           ~ 144 0

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