The EChO science case

Giovanna Tinetti 1 Pierre Drossart 2 Paul Eccleston Paul Hartogh 3 Kate Isaak 4 Martin, Linder 5 Christophe, Lovis Giusi, Micela 6 Marc, Ollivier 7 Ludovic, Puig Ignasi, Ribas 8 Ignas, Snellen Bruce Swinyard. France, Allard Joanna, Barstow 9 James, Cho 10 Athena, Coustenis 2 Charles, Cockell 11 Alexandre, Correia 12 Leen, Decin Remco, de Kok 13 Pieter, Deroo Therese, Encrenaz 2 Francois, Forget 14 Alistair, Glasse Caitlin, Griffith 15 Tristan, Guillot 16 Tommi, Koskinen 17 Helmut, Lammer 18 Jeremy, Leconte 19, 14 Pierre, Maxted Ingo, Mueller-Wodarg Richard, Nelson 20 Chris, North 21 Enric, Pallé Isabella, Pagano Guseppe, Piccioni 22 David, Pinfield 23 Franck Selsis 24 Alessandro, Sozzetti Lars, Stixrude Jonathan, Tennyson 25 Diego, Turrini Mariarosa, Zapatero-Osorio. Jean-Philippe Beaulieu Denis, Grodent 26 Manuel, Guedel David, Luz 27 Hans Ulrik, Nørgaard-Nielsen Tom, Ray Hans, Rickman 28, 29 Avri, Selig 30 Mark Swain. Marek, Banaszkiewicz 29 Mike, Barlow Neil, Bowles 31 Graziella, Branduardi-Raymont 32 Vincent, Coudé Du Foresto Jean-Claude, Gerard 26 Laurent, Gizon Allan, Hornstrup Christopher, Jarchow Franz, Kerschbaum Géza, Kovacs 33 Pierre-Olivier, Lagage 34 Tanya, Lim Mercedes, Lopez-Morales Giuseppe, Malaguti 35 Emanuele, Pace Enzo, Pascale Bart, Vandenbussche 36 Gillian, Wright 37 Gonzalo Ramos Zapata. Alberto, Adriani Ruymán, Azzollini Ana, Balado Ian, Bryson Raymond, Burston Josep, Colomé Martin, Crook Anna, Di Giorgio 38 Matt, Griffin Ruud, Hoogeveen 13 Roland, Ottensamer Ranah, Irshad 31 Kevin, Middleton Gianluca, Morgante Frederic Pinsard Mirek, Rataj Jean-Michel, Reess 2 Giorgio, Savini Jan-Rutger, Schrader Richard, Stamper 39 Berend Winter. L., Abe M., Abreu 40 N., Achilleos 25, 41 P., Ade V., Adybekian L., Affer C., Agnor 42 M. Agúndez C., Alard 43 J., Alcala C., Allende Prieto F. J., Alonso Floriano F., Altieri 22 C. A., Alvarez Iglesias P., Amado Ann Andersen 44 A., Aylward 1 C., Baffa G., Bakos P., Ballerini M., Banaszkiewicz 29 R. J., Barber 45 D., Barrado 46, 47 E. J., Barton 48, 49 V., Batista G., Bellucci 22 J. A., Belmonte Avilés D., Berry 50 B., Bézard 2 D., Biondi M., Błęcka I., Boisse 51 B., Bonfond 26 Pascal Bordé 24 P., Börner 52 H., Bouy 53 L., Brown 54 L., Buchhave J., Budaj A., Bulgarelli M., Burleigh 9 A., Cabral 55 M. T., Capria A., Cassan 56 C., Cavarroc 57, 58, 59 C., Cecchi-Pestellini R., Cerulli 60 J., Chadney S., Chamberlain 61 S., Charnoz N. Christian, Jessen A., Ciaravella A., Claret 62 R., Claudi A., Coates 32 R., Cole A., Collura D. Cordier 63 E., Covino C., Danielski M., Damasso H. J., Deeg 43 E., Delgado-Mena C., Del Vecchio 64 O., Demangeon 65 A., de Sio J., de Wit M. Dobrijevic 66 P., Doel C., Dominic E., Dorfi 67 S., Eales C., Eiroa M., Espinoza Contreras M., Esposito 68 Vincent Eymet N., Fabrizio 69 M., Fernández 70 B., Femenía Castella P., Figueira 71 G., Filacchione 22 L., Fletcher 31 M., Focardi 72 S., Fossey P., Fouqué 73, 74 J., Frith M., Galand 75 L., Gambicorti P., Gaulme 76 R. J., García López A., Garcia-Piquer W., Gear 77 J.-C., Gerard 26 L., Gesa E., Giani F., Gianotti M., Gillon 78 E., Giro M., Giuranna 79 H., Gomez 80 Illeana Gómez Leal 24 J., Gonzalez Hernandez B., González Merino R., Graczyk D., Grassi 22 J., Guardia P., Guio 25 J., Gustin 26 P., Hargrave J., Haigh 81 Eric Hébrard 24 U., Heiter R. L., Heredero E., Herrero 82 F. Hersant 24 D., Heyrovsky M., Hollis B., Hubert 83 R., Hueso 84 G., Israelian N., Iro 85 P., Irwin 31 S., Jacquemoud G., Jones H., Jones K., Justtanont 86 T., Kehoe F., Kerschbaum E., Kerins P., Kervella 2 D., Kipping T., Koskinen 17 N., Krupp 3 O., Lahav B., Laken N., Lanza 87 E., Lellouch G., Leto 88 J., Licandro Goldaracena C., Lithgow-Bertelloni 89 S. J., Liu 90 U., Lo Cicero N., Lodieu P., Lognonné 91 M., Lopez-Puertas 92 M. A., Lopez-Valverde 93 I., Lundgaard Rasmussen A., Luntzer 94 P., Machado 95, 96 C., Mactavish A., Maggio J.-P., Maillard 97 W., Magnes J., Maldonado U., Mall 3 J.-B. Marquette 43 P., Mauskopf F., Massi 98, 99 A. S. Maurin 100 A., Medvedev C., Michaut 101 P., Miles-Paez M., Montalto P., Montañés Rodríguez M., Monteiro D., Montes H., Morais J. C., Morales 102 M., Morales-Calderón G., Morello A., Moro Martín J., Moses A., Moya Bedon F., Murgas Alcaino E., Oliva 103 G., Orton 54 F., Palla M., Pancrazzi E., Pantin V., Parmentier 16 H., Parviainen K. Y., Peña Ramírez J., Peralta 27, 92 S., Perez-Hoyos 84 R., Petrov 16 S., Pezzuto R., Pietrzak E., Pilat-Lohinger 67 N., Piskunov 28 R., Prinja 1 L., Prisinzano I., Polichtchouk E., Poretti A., Radioti 26 A. A., Ramos 104 T., Rank-Lüftinger P., Read 31 K., Readorn R., Rebolo López J., Rebordão 55 M., Rengel 33 L., Rezac 3 M., Rocchetto 105 F., Rodler V. J., Sánchez Béjar A., Sanchez Lavega E., Sanromá 106 N., Santos 107, 71 J., Sanz Forcada G., Scandariato F.-X., Schmider 76 A., Scholz 108 S., Scuderi J., Sethenadh S., Shore A., Showman 15 B., Sicardy P., Sitek 109 Agnès Smith 110 L., Soret 26 S., Sousa A., Stiepen 26 M., Stolarski G., Strazzulla 111 H. M, Tabernero P., Tanga 16 M., Tecsa J., Temple L., Terenzi M., Tessenyi L., Testi S., Thompson 112 H., Thrastarson B. W., Tingley M., Trifoglio J., Martín Torres A., Tozzi 113 D., Turrini R., Varley F., Vakili 16 M., de Val-Borro 33 M. L., Valdivieso O. Venot 24 E., Villaver S., Vinatier 2 S., Viti I., Waldmann D., Waltham 114 D. Ward-Thompson R., Waters C., Watkins D., Watson P., Wawer A., Wawrzaszk G., White T., Widemann 2 W., Winek T., Wiśniowski R., Yelle 17 Y., Yung 115 S. N., Yurchenko
24 ECLIPSE 2015
LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]
66 ASP 2015
L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux, OASU - Observatoire aquitain des sciences de l'univers, LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac], UB - Université de Bordeaux
110 UMR5116
CED - Centre Émile Durkheim
112 Plasmon Nano-optics
ICFO - Institut de Ciencies Fotoniques [Castelldefels]
Abstract : The discovery of almost 2000 exoplanets has revealed an unexpectedly diverse planet population. Observations to date have shown that our Solar System is certainly not representative of the general population of planets in our Milky Way. The key science questions that urgently need addressing are therefore: What are exoplanets made of? Why are planets as they are? What causes the exceptional diversity observed as compared to the Solar System? EChO (Exoplanet Characterisation Observatory) has been designed as a dedicated survey mission for transit and eclipse spectroscopy capable of observing a large and diverse planet sample within its four-year mission lifetime. EChO can target the atmospheres of super-Earths, Neptune-like, and Jupiter-like planets, in the very hot to temperate zones (planet temperatures of 300K-3000K) of F to M-type host stars. Over the next ten years, several new ground- and space-based transit surveys will come on-line (e.g. NGTS, CHEOPS, TESS, PLATO), which will specifically focus on finding bright, nearby systems. The current rapid rate of discovery would allow the target list to be further optimised in the years prior to EChO's launch and enable the atmospheric characterisation of hundreds of planets. Placing the satellite at L2 provides a cold and stable thermal environment, as well as a large field of regard to allow efficient time-critical observation of targets randomly distributed over the sky. A 1m class telescope is sufficiently large to achieve the necessary spectro-photometric precision. The spectral coverage (0.5-11 micron, goal 16 micron) and SNR to be achieved by EChO, thanks to its high stability and dedicated design, would enable a very accurate measurement of the atmospheric composition and structure of hundreds of exoplanets.
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Giovanna Tinetti, Pierre Drossart, Paul Eccleston, Paul Hartogh, Kate Isaak, et al.. The EChO science case. Experimental Astronomy, springer Link, 2015, 40 (2-3), pp.329-391. ⟨10.1007/s10686-015-9484-8⟩. ⟨hal-01136385⟩

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