Zobrazeno 1 - 10
of 720
pro vyhledávání: '"Cifuentes C"'
Autor:
González-Payo, J., Caballero, J. A., Gorgas, J., Cortés-Contreras, M., Gálvez-Ortiz, M. -C., Cifuentes, C.
Publikováno v:
A&A 689, A302 (2024)
- Aims: We intended to quantify the impact of stellar multiplicity on the presence and properties of exoplanets. - Methods: We investigated all exoplanet host stars at less than 100 pc using the latest astrometric data from Gaia DR3 and advanced stat
Externí odkaz:
http://arxiv.org/abs/2407.20138
Autor:
von Stauffenberg, A., Trifonov, T., Quirrenbach, A., Reffert, S., Kaminski, A., Dreizler, S., Ribas, I., Reiners, A., Kürster, M., Twicken, J. D., Rapetti, D., Caballero, J. A., Amado, P. J., Béjar, V. J. S., Cifuentes, C., Góngora, S., Hatzes, A. P., Henning, Th., Montes, D., Morales, J. C., Schweitzer, A.
GJ 581 is a nearby M dwarf known to host a packed multiple planet system with 2 super-Earths and a Neptune-mass planet. We present new orbital analyses of the system, utilizing recent RV data obtained from the CARMENES spectrograph combined with newl
Externí odkaz:
http://arxiv.org/abs/2407.11520
Autor:
Mas-Buitrago, P., González-Marcos, A., Solano, E., Passegger, V. M., Cortés-Contreras, M., Ordieres-Meré, J., Bello-García, A., Caballero, J. A., Schweitzer, A., Tabernero, H. M., Montes, D., Cifuentes, C.
Publikováno v:
A&A 687, A205 (2024)
Deep learning (DL) techniques are a promising approach among the set of methods used in the ever-challenging determination of stellar parameters in M dwarfs. In this context, transfer learning could play an important role in mitigating uncertainties
Externí odkaz:
http://arxiv.org/abs/2405.08703
Autor:
Goffo, E., Chaturvedi, P., Murgas, F., Morello, G., Orell-Miquel, J., Acuña, L., Peña-Moñino, L., Pallé, E., Hatzes, A. P., Geraldía-González, S., Pozuelos, F. J., Lanza, A. F., Gandolfi, D., Caballero, J. A., Schlecker, M., Pérez-Torres, M., Lodieu, N., Schweitzer, A., Hellier, C., Jeffers, S. V., Duque-Arribas, C., Cifuentes, C., Béjar, V. J. S., Daspute, M., Dubois, F., Dufoer, S., Esparza-Borges, E., Fukui, A., Hayashi, Y., Herrero, E., Mori, M., Narita, N., Parviainen, H., Tal-Or, L., Vanaverbeke, S., Hermelo, I., Amado, P. J., Dreizler, S., Henning, Th., Lillo-Box, J., Luque, R., Mallorquín, M., Nagel, E., Quirrenbach, A., Reffert, S., Reiners, A., Ribas, I., Schöfer, P., Tabernero, H. M., Zechmeister, M.
We report the confirmation and mass determination of a mini-Neptune transiting the M3.5 V star TOI-4438 (G 182-34) every 7.44 days. A transit signal was detected with NASA's TESS space mission in the sectors 40, 52, and 53. In order to validate the p
Externí odkaz:
http://arxiv.org/abs/2403.09833
Autor:
de Andrés, F. Llorente, de la Reza, R., Cruz, P., Cuenda-Muñoz, D., Alfaro, E. J., Chavero, C., Cifuentes, C.
This work aims to investigate the behaviour of the lithium abundance in stars with and without detected planets. Our study is based on a sample of 1332 FGK main-sequence stars with measured lithium abundances, for 257 of which planets were detected.
Externí odkaz:
http://arxiv.org/abs/2402.01315
Autor:
Dreizler, S., Luque, R., Ribas, I., Koseleva, V., Ruh, H. L., Nagel, E., Pozuelos, F. J., Zechmeister, M., Reiners, A., Caballero, J. A., Amado, P. J., Béjar, V. J. S., Bean, J. L., Brady, M., Cifuentes, C., Gillon, M., Hatzes, A. P., Henning, Th., Kasper, D., Montes, D., Morales, J. C., Murray, C. A., Pallé, E., Quirrenbach, A., Seifahrt, A., Schweitzer, A., Stürmer, J., Stefánsson, G., Linares, J. I. Vico
The two known planets in the planetary system of Teegarden's Star are among the most Earth-like exoplanets currently known. Revisiting this nearby planetary system with two planets in the habitable zone aims at a more complete census of planets aroun
Externí odkaz:
http://arxiv.org/abs/2402.00923
Autor:
Mallorquín, M., Goffo, E., Pallé, E., Lodieu, N., Béjar, V. J. S., Isaacson, H., Osorio, M. R. Zapatero, Dreizler, S., Stock, S., Luque, R., Murgas, F., Peña, L., Sanz-Forcada, J., Morello, G., Ciardi, D. R., Furlan, E., Collins, K. A., Herrero, E., Vanaverbeke, S., Plavchan, P., Narita, N., Schweitzer, A., Pérez-Torres, M., Quirrenbach, A., Kemmer, J., Hatzes, A. P., Howard, A., Schlecker, M., Reffert, S., Nagel, E., Morales, J. C., Orell-Miquel, J., Duque-Arribas, C., Carleo, I., Cifuentes, C., Nowak, G., Ribas, I., Reiners, A., Amado, P. J., Caballero, J. A., Henning, Th., Pinter, V., Murphy, J. M. Akana, Beard, C., Blunt, S., Brinkman, C. L., Cale, B., Chontos, A., Collins, K. I., Crossfield, I. J. M., Dai, F., Dalba, P. A., Dufoer, S., Mufti, M. El, Espinoza, N., Fetherolf, T., Fukui, A., Giacalone, S., Gnilka, C., Gonzales, E., Grunblatt, S. K., Howell, S., Huber, D., Kane, S. R., de León, J. P., Lubin, J., MacDougall, M. G., Massey, B., Montes, D., Mori, M., Parviainen, H., Passegger, V. M., Polanski, A. S., Robertson, P., Schwarz, R. P., Srdoc, G., Tabernero, H. M., Tanner, A., Turtelboom, E., Van Zandt, J., Weiss, L., Zechmeister, M.
Publikováno v:
A&A 680, A76 (2023)
We report the discovery, mass, and radius determination of TOI-1801 b, a temperate mini-Neptune around a young M dwarf. TOI-1801 b was observed in TESS sectors 22 and 49, and the alert that this was a TESS planet candidate with a period of 21.3 days
Externí odkaz:
http://arxiv.org/abs/2310.10244
Autor:
Gorrini, P., Kemmer, J., Dreizler, S., Burn, R., Hirano, T., Pozuelos, F. J., Kuzuhara, M., Caballero, J. A., Amado, P. J., Harakawa, H., Kudo, T., Quirrenbach, A., Reiners, A., Ribas, I., Béjar, V. J. S., Chaturvedi, P., Cifuentes, C., Galadí-Enríquez, D., Hatzes, A. P., Kaminski, A., Kotani, T., Kürster, M., Livingston, J. H., González, M. J. López, Montes, D., Morales, J. C., Murgas, F., Omiya, M., Pallé, E., Rodríguez, E., Sato, B., Schweitzer, A., Shan, Y., Takarada, T., Tal-Or, L., Tamura, M., Vievard, S., Osorio, M. R. Zapatero, Zechmeister, M.
Publikováno v:
A&A 680, A28 (2023)
We report the discovery of two exoplanets around the M dwarfs GJ 724 and GJ 3988 using the radial velocity (RV) method. We obtained a total of 153 3.5 m Calar Alto/CARMENES spectra for both targets and measured their RVs and activity indicators. We a
Externí odkaz:
http://arxiv.org/abs/2310.05599
Autor:
Orell-Miquel, J., Lampón, M., López-Puertas, M., Mallorquín, M., Murgas, F., Peláez-Torres, A., Pallé, E., Esparza-Borges, E., Sanz-Forcada, J., Tabernero, H. M., Nortmann, L., Nagel, E., Parviainen, H., Osorio, M. R. Zapatero, Caballero, J. A., Czesla, S., Cifuentes, C., Morello, G., Quirrenbach, A., Amado, P. J., Fernández-Martín, A., Fukui, A., Henning, Th., Kawauchi, K., de Leon, J. P., Molaverdikhani, K., Montes, D., Narita, N., Reiners, A., Ribas, I., Sánchez-López, A., Schweitzer, A., Stangret, M., Yan, F.
Publikováno v:
A&A 677, A56 (2023)
HD235088 (TOI-1430) is a young star known to host a sub-Neptune-sized planet candidate. We validated the planetary nature of HD235088 b with multiband photometry, refined its planetary parameters, and obtained a new age estimate of the host star, pla
Externí odkaz:
http://arxiv.org/abs/2307.05191
Autor:
González-Álvarez, E., Osorio, M. R. Zapatero, Caballero, J. A., Béjar, V. J. S., Cifuentes, C., Fukui, A., Herrero, E., Kawauchi, K., Livingston, J. H., López-González, M. J., Morello, G., Murgas, F., Narita, N., Pallé, E., Passegger, V. M., Rodríguez, E., Rodríguez-López, C., Sanz-Forcada, J., Schweitzer, A., Tabernero, H. M., Quirrenbach, A., Amado, P. J., Charbonneau, D., Ciardi, D. R., Cikota, S., Collins, K. A., Conti, D. M., Fausnaugh, M., Hatzes, A. P., Hedges, C., Henning, Th., Jenkins, J. M., Latham, D. W., Massey, B., Moldovan, D., Montes, D., Panahi, A., Reiners, A., Ribas, I., Ricker, G. R., Seager, S., Shporer, A., Srdoc, G., Tenenbaum, P., Vanderspek, R., Winn, J. N., Fukuda, I., Ikoma, M., Isogai, K., Kawai, Y., Mori, M., Tamura, M., Watanabe, N.
Aims. A transiting planet candidate with a sub-Neptune radius orbiting the nearby ($d$ = 51.9$\pm$0.07 pc) M1.5 V star TOI-1470 with a period of $\sim$2.5 d was announced by the NASA Transiting Exoplanet Survey Satellite (TESS), which observed the fi
Externí odkaz:
http://arxiv.org/abs/2306.08516