Zobrazeno 1 - 10
of 2 442
pro vyhledávání: '"Contreras, M. A."'
Autor:
Cortés-Contreras, M., Caballero, J. A., Montes, D., Cardona-Guillén, C., Béjar, V. J. S., Cifuentes, C., Tabernero, H. M., Osorio, M. R. Zapatero, Amado, P. J., Jeffers, S. V., Lafarga, M., Lodieu, N., Quirrenbach, A., Reiners, A., Ribas, I., Schöfer, P., Schweitzer, A., Seifert, W.
Aims. Our goals are to characterise the kinematic properties and to identify young and old stars among the M dwarfs of the CARMENES input catalogue. Methods. We compiled the spectral types, proper motions, distances, and radial velocities for 2187 M
Externí odkaz:
http://arxiv.org/abs/2411.06825
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:
Tabernero, H. M., Shan, Y., Caballero, J. A., Duque-Arribas, C., Montes, D., Hernández, J. I. González, Osorio, M. R. Zapatero, Schweitzer, A., Henning, Th., Cortés-Contreras, M., Quirrenbach, A., Amado, P. J., Reiners, A., Ribas, I., Bergond, G., Morales, J. C.
We present the abundances of magnesium (Mg) and silicon (Si) for 314 dwarf stars with spectral types in the interval K7.0-M5.5 (Teff range ~4200-3050 K) observed with the CARMENES high-resolution spectrograph at the 3.5 m telescope at the Calar Alto
Externí odkaz:
http://arxiv.org/abs/2407.19969
Autor:
Saito, R. K., Hempel, M., Alonso-García, J., Lucas, P. W., Minniti, D., Alonso, S., Baravalle, L., Borissova, J., Caceres, C., Chené, A. N., Cross, N. J. G., Duplancic, F., Garro, E. R., Gómez, M., Ivanov, V. D., Kurtev, R., Luna, A., Majaess, D., Navarro, M. G., Pullen, J. B., Rejkuba, M., Sanders, J. L., Smith, L. C., Albino, P. H. C., Alonso, M. V., Amôres, E. B., Angeloni, R., Arias, J. I., Arnaboldi, M., Barbuy, B., Bayo, A., Beamin, J. C., Bedin, L. R., Bellini, A., Benjamin, R. A., Bica, E., Bonatto, C. J., Botan, E., Braga, V. F., Brown, D. A., Cabral, J. B., Camargo, D., Garatti, A. Caratti o, Carballo-Bello, J. A., Catelan, M., Chavero, C., Chijani, M. A., Clariá, J. J., Coldwell, G. V., Peña, C. Contreras, Ramos, R. Contreras, Corral-Santana, J. M., Cortés, C. C., Cortés-Contreras, M., Cruz, P., Daza-Perilla, I. V., Debattista, V. P., Dias, B., Donoso, L., D'Souza, R., Emerson, J. P., Federle, S., Fermiano, V., Fernandez, J., Fernández-Trincado, J. G., Ferreira, T., Lopes, C. E. Ferreira, Firpo, V., Flores-Quintana, C., Fraga, L., Froebrich, D., Galdeano, D., Gavignaud, I., Geisler, D., Gerhard, O. E., Gieren, W., Gonzalez, O. A., Gramajo, L. V., Gran, F., Granitto, P. M., Griggio, M., Guo, Z., Gurovich, S., Hilker, M., Jones, H. R. A., Kammers, R., Kuhn, M. A., Kumar, M. S . N., Kundu, R., Lares, M., Libralato, M., Lima, E., Maccarone, T. J., Cortés, P. Marchant, Martin, E. L., Masetti, N., Matsunaga, N., Mauro, F., McDonald, I., Mejías, A., Mesa, V., Milla-Castro, F. P., Minniti, J. H., Bidin, C. Moni, Montenegro, K., Morris, C., Motta, V., Navarete, F., Molina, C. Navarro, Nikzat, F., Castellón, J. L. Nilo, Obasi, C., Ortigoza-Urdaneta, M., Palma, T., Parisi, C., Ramírez, K. Pena, Pereyra, L., Perez, N., Petralia, I., Pichel, A., Pignata, G., Alegría, S. Ramírez, Rojas, A. F., Rojas, D., Roman-Lopes, A., Rovero, A. C., Saroon, S., Schmidt, E. O., Schröder, A. C., Schultheis, M., Sgró, M. A., Solano, E., Soto, M., Stecklum, B., Steeghs, D., Tamura, M., Tissera, P., Valcarce, A. A. R., Valotto, C. A., Vasquez, S., Villalon, C., Villanova, S., Cádiz, F. Vivanco, Bacigalupo, R. Zelada, Zijlstra, A., Zoccali, M.
Publikováno v:
A&A 689, A148 (2024)
The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from $2009-2015$. Upon its conclusion, the complementary VVV eXtended (VVVX) survey has expanded both the temp
Externí odkaz:
http://arxiv.org/abs/2406.16646
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:
Murgas, F., Pallé, E., Orell-Miquel, J., Carleo, I., Peña-Moñino, L., Pérez-Torres, M., Watkins, C. N., Jeffers, S. V., Azzaro, M., Barkaoui, K., Belinski, A. A., Caballero, J. A., Charbonneau, D., Cheryasov, D. V., Ciardi, D. R., Collins, K. A., Cortés-Contreras, M., de Leon, J., Duque-Arribas, C., Enoc, G., Esparza-Borges, E., Fukui, A., Geraldía-González, S., Gilbert, E. A., Hatzes, A. P., Hayashi, Y., Henning, Th., Herrero, E., Jenkins, J. M., Lillo-Box, J., Lodieu, N., Lund, M. B., Luque, R., Montes, D., Nagel, E., Narita, N., Parviainen, H., Polanski, A. S., Reffert, S., Schlecker, M., Schöfer, P., Schwarz, R. P., Schweitzer, A., Seager, S., Stassun, K. G., Tabernero, H. M., Terada, Y., Twicken, J. D., Vanaverbeke, S., Winn, J. N., Zambelli, R., Amado, P. J., Quirrenbach, A., Reiners, A., Ribas, I.
Planets with orbital periods shorter than 1 day are rare and have formation histories that are not completely understood. Small ($R_\mathrm{p} < 2\; R_\oplus$) ultra-short-period (USP) planets are highly irradiated, probably have rocky compositions w
Externí odkaz:
http://arxiv.org/abs/2401.12150
Autor:
Chakraborty, Sudeshna, Sadler, Benjamin, Hoeflich, Peter, Hsiao, Eric, Phillips, M. M., Burns, C. R., Diamond, T., Dominguez, I., Galbany, L., Uddin, S. A., Ashall, C., Krisciunas, K., Kumar, S., Mera, T. B., Morrell, N., Baron, E., Contreras, M. C., Stritzinger, M. D., Suntzeff, N. N.
Publikováno v:
The Astrophysical Journal (2024), Volume 969, Number 2, 80
We present an eigenfunction method to analyze 161 visual light curves (LCs) of Type Ia supernovae (SNe Ia) obtained by the Carnegie Supernova Project to characterize their diversity and host-galaxy correlations. The eigenfunctions are based on the de
Externí odkaz:
http://arxiv.org/abs/2311.03473
Autor:
Nagel, E., Czesla, S., Kaminski, A., Zechmeister, M., Tal-Or, L., Schmitt, J. H. M. M., Reiners, A., Quirrenbach, A., López, A. García, Caballero, J. A., Ribas, I., Amado, P. J., Béjar, V. J. S., Cortés-Contreras, M., Dreizler, S., Hatzes, A. P., Henning, Th., Jeffers, S. V., Kürster, M., Lafarga, M., López-Puertas, M., Montes, D., Morales, J. C., Pedraz, S., Schweitzer, A.
Publikováno v:
A&A 680, A73 (2023)
Light from celestial objects interacts with the molecules of the Earth's atmosphere, resulting in the production of telluric absorption lines in ground-based spectral data. Correcting for these lines, which strongly affect red and infrared wavelength
Externí odkaz:
http://arxiv.org/abs/2310.14715
The aim of this paper is, making use of the Gaia DR3 catalogue and Virtual Observatory tools, to confirm and characterize 428 binary and multiple stellar systems classified as neglected (only one observation) in the Washington Double Star Catalogue (
Externí odkaz:
http://arxiv.org/abs/2310.06558
Autor:
Romero, G. E., Gancio, G., Benaglia, P., González, J. M., Rasztocky, E., Command, H., Valdez, G., Tarcetti, E., Hauscarriaga, F., Alarcón, P., Aquino, F., Alí, M., Cabral, L. F., Capuccio, D., Contreras, M., Díaz, E., Duarte, N., García, L. M., Perilli, D., Otonello, P., Spagnolo, S.
We present a proposal for the construction and development of a new instrument for radio astronomical observations based on interferometric techniques, that will provide high angular resolution in the 21 cm band, with the intention of improving and e
Externí odkaz:
http://arxiv.org/abs/2309.16891