Zobrazeno 1 - 10
of 1 148
pro vyhledávání: '"González, M‐J"'
Autor:
Noda, C. Quintero, Shchukina, N. G., Ramos, A. Asensio, González, M. J. Martínez, Alemán, T. del Pino, Arjona, J. C. Trelles, Collados, M.
Inferring the coupling of different atmospheric layers requires observing spectral lines sensitive to the atmospheric parameters, particularly the magnetic field vector, at various heights. The best way to tackle this goal is to perform multi-line ob
Externí odkaz:
http://arxiv.org/abs/2411.12397
Autor:
Liebing, F., Jeffers, S. V., Gorrini, P., Haswell, C. A., Dreizler, S., Barnes, J. R., Hartogh, C., Koseleva, V., Del Sordo, F., Amado, P. J., Caballero, J. A., López-González, M. J., Morales, N., Reiners, A., Ribas, I., Quirrenbach, A., Rodríguez, E., Tal-Or, L., Tsapras, Y.
Aims. Using HARPS spectroscopic data obtained by the RedDots campaign, as well as archival data from HARPS and CARMENES, supplemented with ASH2 and T90 photometry, we aim to search for additional planets around the three M dwarfs GJ 832, GJ 674, and
Externí odkaz:
http://arxiv.org/abs/2409.01173
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:
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$2.5 d was announced by the NASA Transiting Exoplanet Survey Satellite (TESS), which observed the fi
Externí odkaz:
http://arxiv.org/abs/2306.08516
Autor:
González-Álvarez, E., Kemmer, J., Chaturvedi, P., Caballero, J. A., Quirrenbach, A., Amado, P. J., Béjar, V. J. S., Cifuentes, C., Herrero, E., Kossakowski, D., Reiners, A., Ribas, I., Rodríguez, E., Rodríguez-López, C., Sanz-Forcada, J., Shan, Y., Stock, S., Tabernero, H. M., Tal-Or, L., Osorio, M. R. Zapatero, Hatzes, A. P., Henning, Th., López-González, M. J., Montes, D., Morales, J. C., Pallé, E., Pedraz, S., Perger, M., Reffert, S., Sabotta, S., Schweitzer, A., Zechmeister, M.
Publikováno v:
A&A 675, A141 (2023)
We report the discovery of HN Lib b, a sub-Neptunian mass planet orbiting the nearby ($d \approx$ = 6.25 pc) M4.0 V star HN Lib detected by our CARMENES radial-velocity (RV) survey. We determined a planetary minimum mass of $M_\text{b}\sin i = $ 5.46
Externí odkaz:
http://arxiv.org/abs/2305.19677
Autor:
Ribas, I., Reiners, A., Zechmeister, M., Caballero, J. A., Morales, J. C., Sabotta, S., Baroch, D., Amado, P. J., Quirrenbach, A., Abril, M., Aceituno, J., Anglada-Escudé, G., Azzaro, M., Barrado, D., Béjar, V. J. S., de Haro, D. Benítez, Bergond, G., Bluhm, P., Ortega, R. Calvo, Guillén, C. Cardona, Chaturvedi, P., Cifuentes, C., Colomé, J., Cont, D., Cortés-Contreras, M., Czesla, S., Díez-Alonso, E., Dreizler, S., Duque-Arribas, C., Espinoza, N., Fernández, M., Fuhrmeister, B., Galadí-Enríquez, D., García-López, A., González-Álvarez, E., Hernández, J. I. González, Guenther, E. W., de Guindos, E., Hatzes, A. P., Henning, Th., Herrero, E., Hintz, D., Huelmo, Á. L., Jeffers, S. V., Johnson, E. N., de Juan, E., Kaminski, A., Kemmer, J., Khaimova, J., Khalafinejad, S., Kossakowski, D., Kürster, M., Labarga, F., Lafarga, M., Lalitha, S., Lampón, M., Lillo-Box, J., Lodieu, N., González, M. J. López, López-Puertas, M., Luque, R., Magán, H., Mancini, L., Marfil, E., Martín, E. L., Martín-Ruiz, S., Molaverdikhani, K., Montes, D., Nagel, E., Nortmann, L., Nowak, G., Pallé, E., Passegger, V. M., Pavlov, A., Pedraz, S., Perdelwitz, V., Perger, M., Ramón-Ballesta, A., Reffert, S., Revilla, D., Rodríguez, E., Rodríguez-López, C., Sadegi, S., Carrasco, M. Á. Sánchez, Sánchez-López, A., Sanz-Forcada, J., Schäfer, S., Schlecker, M., Schmitt, J. H. M. M., Schöfer, P., Schweitzer, A., Seifert, W., Shan, Y., Skrzypinski, S. L., Solano, E., Stahl, O., Stangret, M., Stock, S., Stürmer, J., Tabernero, H. M., Tal-Or, L., Trifonov, T., Vanaverbeke, S., Yan, F., Osorio, M. R. Zapatero
The CARMENES instrument was conceived to deliver high-accuracy radial velocity (RV) measurements with long-term stability to search for temperate rocky planets around a sample of nearby cool stars. The broad wavelength coverage was designed to provid
Externí odkaz:
http://arxiv.org/abs/2302.10528
Autor:
Pozuelo, S. Esteban, Ramos, A. Asensio, Rodríguez, J. de la Cruz, Bueno, J. Trujillo, González, M. J. Martínez
Publikováno v:
A&A 672, A141 (2023)
Details of the magnetic field in the quiet Sun chromosphere are key to our understanding of essential aspects of the solar atmosphere. We aim to determine the longitudinal magnetic field component (B_lon) of quiet Sun regions depending on their size.
Externí odkaz:
http://arxiv.org/abs/2302.04258
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
Autor:
Kossakowski, D., Kürster, M., Trifonov, T., Henning, Th., Kemmer, J., Caballero, J. A., Burn, R., Sabotta, S., Crouse, J. S., Fauchez, T. J., Nagel, E., Kaminski, A., Herrero, E., Rodríguez, E., González-Álvarez, E., Quirrenbach, A., Amado, P. J., Ribas, I., Reiners, A., Aceituno, J., Béjar, V. J. S., Baroch, D., Bastelberger, S. T., Chaturvedi, P., Cifuentes, C., Dreizler, S., Jeffers, S. V., Kopparapu, R., Lafarga, M., López-González, M. J., n-Ruiz, S. Martí, Montes, D., Morales, J. C., Pallé, E., Pavlov, A., Pedraz, S., Perdelwitz, V., Pérez-Torres, M., Perger, M., Reffert, S., López, C. Rodríguez, Schlecker, M., Schöfer, P., Schweitzer, A., Shan, Y., Shields, A., Stock, S., Wolf, E., Osorio, M. R. Zapatero, Zechmeister, M.
Publikováno v:
A&A 670, A84 (2023)
We present the discovery of an Earth-mass planet ($M_b\sin i = 1.26\pm0.21M_\oplus$) on a 15.6d orbit of a relatively nearby ($d\sim$9.6pc) and low-mass ($0.167\pm0.011 M_\odot$) M5.0V star, Wolf 1069. Sitting at a separation of $0.0672\pm0.0014$au a
Externí odkaz:
http://arxiv.org/abs/2301.02477
Autor:
Mascareño, A. Suárez, González-Álvarez, E., Osorio, M. R. Zapatero, Lillo-Box, J., Faria, J. P., Passegger, V. M., Hernández, J. I. González, Figueira, P., Sozzetti, A., Rebolo, R., Pepe, F., Santos, N. C., Cristiani, S., Lovis, C., Silva, A. M., Ribas, I., Amado, P. J., Caballero, J. A., Quirrenbach, A., Reiners, A., Zechmeister, M., Adibekyan, V., Alibert, Y., Béjar, V. J. S., Benatti, S., D'Odorico, V., Damasso, M., Delisle, J. -B., Dreizler, P. Di Marcantonio S., Ehrenreich, D., Hatzes, A. P., Hara, N. C., Henning, Th., Kaminski, A., López-González, M. J., Martins, C. J. A. P., Micela, G., Montes, D., Pallé, E., Pedraz, S., Rodríguez, E., Rodríguez-López, C., Tal-Or, L., Sousa, S., Udry, S.
We report the discovery and characterisation of two Earth-mass planets orbiting in the habitable zone of the nearby M-dwarf GJ~1002 based on the analysis of the radial-velocity (RV) time series from the ESPRESSO and CARMENES spectrographs. The host s
Externí odkaz:
http://arxiv.org/abs/2212.07332