K2-29 b/WASP-152 b: AN ALIGNED AND INFLATED HOT JUPITER IN A YOUNG VISUAL BINARY

被引：18

作者：

Santerne, A. ^{[1
,2
]}

Hebrard, G. ^{[3
,4
,5
]}

Lillo-Box, J. ^{[6
,7
]}

Armstrong, D. J. ^{[8
,9
]}

Barros, S. C. C. ^{[1
]}

Demangeon, O. ^{[2
]}

Barrado, D. ^{[6
]}

Debackere, A. ^{[34
]}

Deleuil, M. ^{[2
]}

Delgado Mena, E. ^{[1
]}

Montalto, M. ^{[1
]}

Pollacco, D. ^{[8
]}

Osborn, H. P. ^{[8
]}

Sousa, S. G. ^{[1
]}

Abe, L. ^{[10
,34
]}

Adibekyan, V. ^{[1
]}

Almenara, J. -M. ^{[11
,12
]}

Andre, P. ^{[13
,34
]}

Arlic, G. ^{[34
]}

Barthe, G. ^{[34
]}

Bendjoya, P. ^{[10
,34
]}

Behrend, R. ^{[14
,34
]}

Boisse, I. ^{[2
]}

Bouchy, F. ^{[2
,14
]}

Boussier, H. ^{[15
,34
]}

Bretton, M. ^{[16
,34
]}

Brown, D. J. A. ^{[8
]}

Carry, B. ^{[10
,34
]}

Cailleau, A. ^{[34
]}

Conseil, E. ^{[17
,34
]}

Coulon, G. ^{[18
,34
]}

Courcol, B. ^{[2
]}

Dauchet, B. ^{[18
,34
]}

Dalouzy, J. -C. ^{[34
]}

Deldem, M. ^{[19
,34
]}

Desormieres, O. ^{[18
,34
]}

Dubreuil, P. ^{[34
]}

Fehrenbach, J. -M. ^{[13
,34
]}

Ferratfiat, S. ^{[20
,34
]}

Girelli, R. ^{[21
,22
,34
]}

Gregorio, J. ^{[23
,34
]}

Jaecques, S. ^{[34
]}

Kugel, F. ^{[24
,34
]}

Kirk, J. ^{[8
]}

Labrevoir, O. ^{[25
,34
]}

Lachurie, J. -C. ^{[13
,34
]}

Lam, K. W. F. ^{[8
]}

Le Guen, P. ^{[34
]}

Martinez, P. ^{[13
,34
]}

Maurin, L. P. A. ^{[15
,34
]}

机构：

[1] Univ Porto, CAUP, Inst Astrofis & Ciencias Espaco, Rua Estrelas, P-4150762 Oporto, Portugal

[2] Aix Marseille Univ, CNRS, Lab Astrophys Marseille, UMR 7326, F-13388 Marseille, France

[3] Univ Paris 06, CNRS, Inst Astrophys Paris, UMR7095, 98Bis Blvd Arago, F-75014 Paris, France

[4] Univ Aix Marseille, Observ Haute Provence, F-04870 St Michel lObservatoire, France

[5] CNRS, F-04870 St Michel lObservatoire, France

[6] INTA, CSIC, Ctr Astrobiol, Dept Astrofs, ESAC Campus, E-28692 Villanueva De La Caada, Madrid, Spain

[7] European So Observ, Alonso de Cordova 3107,Casilla 19001, Santiago, Chile

[8] Univ Warwick, Dept Phys, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England

[9] Queens Univ Belfast, Sch Math & Phys, ARC, Univ Rd, Belfast BT7 1NN, Antrim, North Ireland

[10] Univ Nice Sophia Antipolis, CNRS, Observ Cote Azur, Lab Lagrange,UMR7239, F-06300 Nice, France

[11] Univ Grenoble Alpes, IPAG, F-38000 Grenoble, France

[12] CNRS, IPAG, F-38000 Grenoble, France

[13] Assoc Astron Adagio, Observ Belesta en Lauragais, 30 Route Revel, F-31450 Varennes, France

[14] Univ Geneva, Astron Observ, 51 Chemin Maillettes, CH-1290 Versoix, Switzerland

[15] SAF Observ, F-84450 St Saturnin Les Avignon, France

[16] Astron Observ, Observ Baronnies Provencales, F-05150 Moydans, France

[17] Observ Geotopia, Rue Ecoles, F-62350 Mt Bernenchon, France

[18] Assoc Planete Sci, Ctr Astron Jean Marc Salomon, 73 Rue Roches, F-77760 Buthiers, France

[19] Observ Barres, F-13113 Lamanon, France

[20] Observ Vauvenargues, Astron Amateurs Aixois, 1185 Chemin Puits dAuzon, F-13126 Vauvenargues, France

[21] Bassano Bresciano Observ, Via San Michele 4, I-25020 Bassano Bresciano, Italy

[22] Italian Supernovae Search Project, Pisa, Italy

[23] Crow Observ, Atalaia Grp, Portalegre, Portugal

[24] Observ Dauban, F-04150 Banon, France

[25] Ctr Astron, Plateau Moulin Vent, F-04870 St Michel lObservatoire, France

[26] GAPRA, 2 Rue Marcel Paul, F-06160 Juan Les Pins, France

[27] Amer Assoc Variable Star Observers, 49 Bay State Rd, Cambridge, MA 02138 USA

[28] Unione Astrofili Italiani, Sez Stelle Variabili, Rome, Italy

[29] Phys Res Lab, Astron & Astrophys Div, Ahmadabad 380009, Gujarat, India

[30] Observ Blauvac, 293 Chemin St Guillaume, F-84570 Blauvac, France

[31] Univ Porto, Fac Ciencias, Dept Fis & Astron, Rua Campo Alegre, P-4169007 Oporto, Portugal

[32] Univ Toulouse, CNRS, UPS, IRAP, 9 Ave Colonel Roche, F-31028 Toulouse 4, France

[33] CNRS, Inst Mecan Celeste & Calcul Ephemerides, UMR8028, 77 Ave Denfert Rochereau, F-75014 Paris, France

[34] European Pro, Network Exoplanetary Transit Observers, Paris, France

来源：

ASTROPHYSICAL JOURNAL | 2016年 / 824卷 / 01期

基金：

美国国家航空航天局; 美国国家科学基金会; 欧洲研究理事会;

关键词：

planets and satellites: detection; stars: individual (EPIC21189792); techniques: high angular resolution; techniques: photometric; techniques: radial velocities; techniques: spectroscopic; RADIAL-VELOCITY MEASUREMENTS; EXTRASOLAR PLANET VALIDATION; ROTATION PERIODS; OPEN CLUSTER; SOPHIE VELOCIMETRY; PLEIADES CLUSTER; BLEND SCENARIOS; CORALIE SURVEY; SOLAR PLANETS; BROWN DWARF;

D O I：

10.3847/0004-637X/824/1/55

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the present paper we report the discovery of a new hot Jupiter, K2-29 b, first detected by the Super-WASP observatory and then by the K2 space mission during its campaign 4. The planet has a period of 3.25 days, a mass of 0.73 +/- 0.04M(sic), and a radius of 1.19 +/- 0.02 R(sic). The host star is a relatively bright (V = 12.5) G7 dwarf with a nearby K5V companion. Based on stellar rotation and the abundance of lithium, we find that the system might be as young as similar to 450 Myr. The observation of the Rossiter-McLaughlin effect shows that the planet is aligned with respect to the stellar spin. Given the deep transit (20 mmag), the magnitude of the star and the presence of a nearby stellar companion, the planet is a good target for both space- and ground-based transmission spectroscopy, in particular in the near-infrared where both stars are relatively bright.

引用

页数：10

共 36 条

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