CHEOPS in-flight performance: A comprehensive look at the first 3.5 years of operations

Autor: Fortier, A., Simon, A. E., Broeg, C., Olofsson, G., Deline, A., Wilson, T. G., Maxted, P. F. L., Brandeker, A., Cameron, A. Collier, Beck, M., Bekkelien, A., Billot, N., Bonfanti, A., Bruno, G., Cabrera, J., Delrez, L., Demory, B. -O., Futyan, D., Florén, H. -G., Günther, M. N., Heitzmann, A., Hoyer, S., Isaak, K. G., Sousa, S. G., Stalport, M., Turin, A., Verhoeve, P., Akinsanmi, B., Alibert, Y., Alonso, R., Bánhidi, D., Bárczy, T., Barrado, D., Barros, S. C., Baumjohann, W., Baycroft, T., Beck, T., Benz, W., Bíró, B. I., Bódi, A., Bonfils, X., Borsato, L., Charnoz, S., Cseh, B., Csizmadia, Sz., Csányi, I., Cubillos, P. E., Davies, M. B., Davis, Y. T., Deleuil, M., Demangeon, O. D. S., Derekas, A., Dransfield, G., Ducrot, E., Ehrenreich, D., Erikson, A., Fariña, C., Fossati, L., Fridlund, M., Gandolfi, D., Garai, Z., Garcia, L., Gillon, M., Chew, Y. Gómez Maqueo, Gómez-Muñoz, M. A., Granata, V., Güdel, M., Guterman, P., Hegedüs, T., Helling, Ch., Jehin, E., Kalup, Cs., Kilkenny, D., Kiss, L., Kriskovics, L., Lam, K. W. F., Laskar, J., Etangs, A. Lecavelier des, Lendl, M., Pina, A. Lopez, Luntzer, A., Magrin, D., Miller, N. J., Contreras, D. Modrego, Mordasini, C., Munari, M., Murray, C. A., Nascimbeni, V., Ottacher, H., Ottensamer, R., Pagano, I., Pál, A., Pallé, E., Pasetti, A., Pedersen, P., Peter, G., Petrucci, R., Piotto, G., Pizarro-Rubio, A., Pollacco, D., Pribulla, T., Queloz, D., Ragazzoni, R., Rando, N., Rauer, H., Ribas, I., Sabin, L., Santos, N. C., Scandariato, G., Schanche, N., Schroffenegger, U., Scutt, O. J., Sebastian, D., Ségransan, D., Seli, B., Smith, A. M. S., Southworth, R., Standing, M. R., Szabó, M. Gy., Szakáts, R., Thomas, N., Timmermans, M., Triaud, A. H. M. J., Udry, S., Van Grootel, V., Venturini, J., Villaver, E., Vinkó, J., Walton, N. A., Wells, R., Wolter, D.

CHEOPS is a space telescope specifically designed to monitor transiting exoplanets orbiting bright stars. In September 2023, CHEOPS completed its nominal mission and remains in excellent operational conditions. The mission has been extended until the

Externí odkaz: http://arxiv.org/abs/2406.01716

TESS discovery of a super-Earth orbiting the M dwarf star TOI-1680

Autor: Ghachoui, M., Soubkiou, A., Wells, R. D., Rackham, B. V., Triaud, A. H. M. J., Sebastian, D., Giacalone, S., Stassun, K. G., Ciardi, D. R., Collins, K. A., Liu, A., Chew, Y. Gómez Maqueo, Gillon, M., Benkhaldoun, Z., Delrez, L., Eastman, J. D., Demangeon, O., Barkaoui, K., Burdanov, A., Demory, B. -O., de Wit, J., Dransfield, G., Ducrot, E., Garcia, L., Gómez-Muñoz, M. A., Hooton, M. J., Jehin, E., Murray, C. A., Pedersen, P. P., Pozuelos, F. J., Queloz, D., Sabin, L., Schanche, N., Timmermans, M., Gonzales, E. J., Dressing, C. D., Aganze, C., Burgasser, A. J., Gerasimov, R., Hsu, C., Theissen, C. A., Charbonneau, D., Jenkins, J. M., Latham, D. W., Ricker, G., Seager, S., Shporer, A., Twicken, J. D., Vanderspek, R., Winn, J. N., Collins, K. I., Fukui, A., Gan, T., Narita, N., Schwarz, R. P.

Publikováno v: A&A 677, A31 (2023)

We report the discovery by the TESS mission of a super-Earth on a 4.8-d orbit around an inactive M4.5 dwarf (TOI-1680) validated by ground-based facilities. The host star is located 37.14 pc away, with a radius of 0.2100+/-0.0064 R_sun, mass of 0.180

Externí odkaz: http://arxiv.org/abs/2307.05368

A super-Earth and a mini-Neptune near the 2:1 MMR straddling the radius valley around the nearby mid-M dwarf TOI-2096

Autor: Pozuelos, F. J., Timmermans, M., Rackham, B. V., Garcia, L. J., Burgasser, A. J., Kane, S. R., Günther, M. N., Stassun, K. G., Van Grootel, V., Dévora-Pajares, M., Luque, R., Edwards, B., Niraula, P., Schanche, N., Wells, R. D., Ducrot, E., Howell, S., Sebastian, D., Barkaoui, K., Waalkes, W., Cadieux, C., Doyon, R., Boyle, R. P., Dietrich, J., Burdanov, A., Delrez, L., Demory, B. -O., de Wit, J., Dransfield, G., Gillon, M., Chew, Y. Gómez Maqueo, Hooton, M. J., Jehin, E., Murray, C. A., Pedersen, P. P., Queloz, D., Thompson, S. J., Triaud, A. H. M. J., Zúñiga-Fernández, S., Collins, K. A., Fausnaugh, M. M., Hedges, C., Hesse, K. M., Jenkins, J. M., Kunimoto, M., Latham, D. W., Shporer, A., Ting, E. B., Torres, G., Amado, P., Rodón, J. R., Rodríguez-López, C., Suárez, J. C., Alonso, R., Benkhaldoun, Z., Berta-Thompson, Z. K., Chinchilla, P., Ghachoui, M., Gómez-Muñoz, M. A., Rebolo, R., Sabin, L., Schroffenegger, U., Furlan, E., Gnilka, C., Lester, K., Scott, N., Aganze, C., Gerasimov, R., Hsu, C., Theissen, C., Apai, D., Chen, W. P., Gabor, P., Henning, T., Mancini, L.

Publikováno v: A&A 672, A70 (2023)

Several planetary formation models have been proposed to explain the observed abundance and variety of compositions of super-Earths and mini-Neptunes. In this context, multitransiting systems orbiting low-mass stars whose planets are close to the rad

Externí odkaz: http://arxiv.org/abs/2303.08174

GJ 806 (TOI-4481): A bright nearby multi-planetary system with a transiting hot, low-density super-Earth

Autor: Palle, E., Orell-Miquel, J., Brady, M., Bean, J., Hatzes, A. P., Morello, G., Morales, J. C., Murgas, F., Molaverdikhani, K., Parviainen, H., Sanz-Forcada, J., Béjar, V. J. S., Caballero, J. A., Sreenivas, K. R., Schlecker, M., Ribas, I., Perdelwitz, V., Tal-Or, L., Pérez-Torres, M., Luque, R., Dreizler, S., Fuhrmeister, B., Aceituno, F., Amado, P. J., Anglada-Escudé, G., Caldwell, D. A., Charbonneau, D., Cifuentes, C., de Leon, J. P., Collins, K. A., Dufoer, S., Espinoza, N., Essack, Z., Fukui, A., Chew, Y. Gómez Maqueo, Gómez-Muñoz, M. A., Henning, Th., Herrero, E., Jeffers, S. V., Jenkins, J., Kaminski, A., Kasper, J., Kunimoto, M., Latham, D., Lillo-Box, J., López-González, M. J., Montes, D., Mori, M., Narita, N., Quirrenbach, A., Pedraz, S., Reiners, A., Rodríguez, E., Rodríguez-López, C., Sabin, L., Schanche, N., Schwarz, R-P., Schweitzer, A., Seifahrt, A., Stefansson, G., Sturmer, J., Trifonov, T., Vanaverbeke, S., Wells, R. D., Zapatero-Osorio, M. R., Zechmeister, M.

Publikováno v: A&A 678, A80 (2023)

One of the main scientific goals of the TESS mission is the discovery of transiting small planets around the closest and brightest stars in the sky. Here, using data from the CARMENES, MAROON-X, and HIRES spectrographs, together with TESS, we report

Externí odkaz: http://arxiv.org/abs/2301.06873

Two temperate super-Earths transiting a nearby late-type M dwarf

Autor: Delrez, L., Murray, C. A., Pozuelos, F. J., Narita, N., Ducrot, E., Timmermans, M., Watanabe, N., Burgasser, A. J., Hirano, T., Rackham, B. V., Stassun, K. G., Van Grootel, V., Aganze, C., Cointepas, M., Howell, S., Kaltenegger, L., Niraula, P., Sebastian, D., Almenara, J. M., Barkaoui, K., Baycroft, T. A., Bonfils, X., Bouchy, F., Burdanov, A., Caldwell, D. A., Charbonneau, D., Ciardi, D. R., Collins, K. A., Daylan, T., Demory, B. -O., de Wit, J., Dransfield, G., Fajardo-Acosta, S. B., Fausnaugh, M., Fukui, A., Furlan, E., Garcia, L. J., Gnilka, C. L., Chew, Y. Gómez Maqueo, Gómez-Muñoz, M. A., Günther, M. N., Harakawa, H., Heng, K., Hooton, M. J., Hori, Y., Ikoma, M., Jehin, E., Jenkins, J. M., Kagetani, T., Kawauchi, K., Kimura, T., Kodama, T., Kotani, T., Krishnamurthy, V., Kudo, T., Kunovac, V., Kusakabe, N., Latham, D. W., Littlefield, C., McCormac, J., Melis, C., Mori, M., Murgas, F., Palle, E., Pedersen, P. P., Queloz, D., Ricker, G., Sabin, L., Schanche, N., Schroffenegger, U., Seager, S., Shiao, B., Sohy, S., Standing, M. R., Tamura, M., Theissen, C. A., Thompson, S. J., Triaud, A. H. M. J., Vanderspek, R., Vievard, S., Wells, R. D., Winn, J. N., Zou, Y., Zúñiga-Fernández, S., Gillon, M.

In the age of JWST, temperate terrestrial exoplanets transiting nearby late-type M dwarfs provide unique opportunities for characterising their atmospheres, as well as searching for biosignature gases. We report here the discovery and validation of t

Externí odkaz: http://arxiv.org/abs/2209.02831