Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Alonso, E. Diez"'
Autor:
Schöfer, P., Jeffers, S. V., Reiners, A., Zechmeister, M., Fuhrmeister, B., Lafarga, M., Ribas, I., Quirrenbach, A., Amado, P. J., Caballero, J. A., Anglada-Escudé, G., Bauer, F. F., Béjar, V. J. S., Cortés-Contreras, M., Alonso, E. Díez, Dreizler, S., Guenther, E. W., Herbort, O., Johnson, E. N., Kaminski, A., Kürster, M., Montes, D., Morales, J. C., Pedraz, S., Tal-Or, L.
Publikováno v:
A&A 663, A68 (2022)
The CARMENES instrument is searching for periodic radial-velocity (RV) variations of M dwarfs, which are induced by orbiting planets. However, there are other potential sources of such variations, including rotational modulation caused by stellar act
Externí odkaz:
http://arxiv.org/abs/2204.11685
Autor:
Castro-González, A., Alonso, E. Díez, Blanco, J. Menéndez, Livingston, J., de Leon, J. P., Lillo-Box, J., Korth, J., Menéndez, S. Fernández, Recio, J. M., Izquierdo-Ruiz, F., Lozano, A. Coya, de la Cuesta, F. García, Hernández, N. Gómez, Blanco, J. R. Vidal, Díaz, R. Hevia, Silva, R. Pardo, Acevedo, S. Pérez, Ruiz, J. Polancos, Tijerín, P. Padilla, García, D. Vázquez, Gómez, S. L. Suárez, Riesgo, F. García, Gutiérrez, C. González, Bonavera, L., González-Nuevo, J., Pereira, C. Rodríguez, Lasheras, F. Sánchez, Rodríguez, M. L. Sánchez, Muñiz, R., Rodríguez, J. D. Santos, Juez, F. J. de Cos
We present the first results of K2-OjOS, a collaborative project between professional and amateur astronomers primarily aimed to detect, characterize, and validate new extrasolar planets. For this work, 10 amateur astronomers looked for planetary sig
Externí odkaz:
http://arxiv.org/abs/2109.03346
Autor:
de Leon, J. P., Livingston, J., Endl, M., Cochran, W. D., Hirano, T., Garcia, R. A., Mathur, S., Lam, K. W. F., Korth, J., Trani, A. A., Dai, F., Alonso, E. Diez, Castro-Gonzalez, A., Fridlund, M., Fukui, A., Gandolfi, D., Kabath, P., Kuzuhara, M., Luque, R., Savel, A. B., Gill, H., Dressing, C., Giacalone, S., Narita, N., Palle, E., Van Eylen, V., Tamura, M.
We analysed 68 candidate planetary systems first identified during Campaigns 5 and 6 (C5 and C6) of the NASA \textit{K2} mission. We set out to validate these systems by using a suite of follow-up observations, including adaptive optics, speckle imag
Externí odkaz:
http://arxiv.org/abs/2108.05621
Autor:
González, A. Castro, Alonso, E. Díez, Blanco, J. Menéndez, Livingston, John H., de Leon, Jerome P., Gómez, S. L. Suárez, Gutiérrez, C. González, Riesgo, F. García, Bonavera, L., Rodríguez, F. J. Iglesias, Muñiz, R., Everett, Mark E., Scott, N. J., Howell, Steve B., Ciardi, David R., Gonzales, Erica J., Schlieder, Joshua E., Juez, F. J. de Cos
We analyzed the photometry of 20038 cool stars from campaigns 12, 13, 14 and 15 of the K2 mission in order to detect, characterize and validate new planetary candidates transiting low-mass stars. We present a catalogue of 25 new periodic transit-like
Externí odkaz:
http://arxiv.org/abs/2007.12744
Autor:
Bluhm, P., Luque, R., Espinoza, N., Palle, E., Caballero, J. A., Dreizler, S., Livingston, J. H., Mathur, S., Quirrenbach, A., Stock, S., Van Eylen, V., Nowak, G., Lopez, E., Csizmadia, Sz., Osorio, M. R. Zapatero, Schoefer, P., Lillo-Box, J., Oshagh, M., Amado, P. J., Barrado, D., Bejar, V. J. S., Cale, B., Chaturvedi, P., Cifuentes, C., Cochran, W. D., Collins, K. A., Collins, K. I., Cortes-Contreras, M., Alonso, E. Diez, Mufti, M. El, Ercolino, A., Fridlund, M., Gaidos, E., Garcia, R. A., Gonzalez-Alvarez, E., Gonzalez-Cuesta, L., Guerra, P., Hatzes, A. P., Henning, T., Herrero, E., Hidalgo, D., Isopi, G., Jeffers, S. V., Jenkins, J. M., Jensen, E. L. N., Kabath, P., Kemmer, J., Korth, J., Kossakowski, D., Kuerster, M., Lafarga, M., Mallia, F., Montes, D., Morales, J. C., Morales-Calderon, M., Murgas, F., Narita, N., Plavchan, P., Passegger, V. M., Pedraz, S., Rauer, H., Redfield, S., Reffert, S., Reiners, A., Ribas, I., Ricker, G. R., Rodriguez-Lopez, C., Santos, A. R. G., Seager, S., Shan, Y., Schlecker, M., Schweitzer, A., Soto, M. G., Subjak, J., Tal-Or, L., Trifonov, T., Vanaverbeke, S., Vanderspek, R., Wittrock, J., Zechmeister, M., Zohrabi, F.
Publikováno v:
A&A 639, A132 (2020)
We report the confirmation of a transiting planet around the bright, inactive M0.5 V star TOI-1235 (TYC 4384-1735-1, V = 11.5 mag), whose transit signal was detected in the photometric time series of Sectors 14, 20, and 21 of the TESS space mission.
Externí odkaz:
http://arxiv.org/abs/2004.06218
Autor:
Nowak, G., Luque, R., Parviainen, H., Pallé, E., Molaverdikhani, K., Béjar, V. J. S., Lillo-Box, J., Rodríguez-López, C., Caballero, J. A., Zechmeister, M., Passegger, V. M., Cifuentes, C., Schweitzer, A., Narita, N., Cale, B., Espinoza, N., Murgas, F., Hidalgo, D., Osorio, M. R. Zapatero, Pozuelos, F. J., Aceituno, F. J., Amado, P. J., Barkaoui, K., Barrado, D., Bauer, F. F., Benkhaldoun, Z., Caldwell, D. A., Barris, N. Casasayas, Chaturvedi, P., Chen, G., Collins, K. A., Collins, K. I., Cortés-Contreras, M., Crossfield, I. J. M., de León, J. P., Alonso, E. Díez, Dreizler, S., Mufti, M. El, Esparza-Borges, E., Essack, Z., Fukui, A., Gaidos, E., Gillon, M., Gonzales, E. J., Guerra, P., Hatzes, A., Henning, T., Herrero, E., Hesse, K., Hirano, T., Howell, S. B., Jeffers, S. V., Jehin, E., Jenkins, J. M., Kaminski, A., Kemmer, J., Kielkopf, J. F., Kossakowski, D., Kotani, T., Kürster, M., Lafarga, M., Latham, D. W., Law, N., Lissauer, J. J., Lodieu, N., Madrigal-Aguado, A., Mann, A. W., Massey, B., Matson, R. A., Matthews, E., Montanés-Rodríguez, P., Montes, D., Morales, J. C., Mori, M., Nagel, E., Oshagh, M., Pedraz, S., Plavchan, P., Pollacco, D., Quirrenbach, A., Reffert, S., Reiners, A., Ribas, I., Ricker, G. R., Rose, M. E., Schlecker, M., Schlieder, J. E., Seager, S., Stangret, M., Stock, S., Tamura, M., Tanner, A., Teske, J., Trifonov, T., Twicken, J. D., Vanderspek, R., Watanabe, D., Wittrock, J., Ziegler, C., Zohrabi, F.
Publikováno v:
A&A 642, A173 (2020)
We present the discovery and characterisation of two transiting planets observed by the Transiting Exoplanet Survey Satellite (TESS) orbiting the nearby (d ~ 22 pc), bright (J ~ 9 mag) M3.5 dwarf LTT 3780 (TOI-732). We confirm both planets and their
Externí odkaz:
http://arxiv.org/abs/2003.01140
Autor:
Bonavera, L., González-Nuevo, J., Gómez, S. L. Suárez, Lapi, A., Bianchini, F., Negrello, M., Alonso, E. Díez, Santos, J. D., Juez, F. J. de Cos
Magnification bias is a gravitational lensing effect that is normally overlooked because it is considered sub-optimal in comparison with the lensing shear. Thanks to the demonstrated optimal characteristics of the sub-millimetre galaxies (SMGs) for l
Externí odkaz:
http://arxiv.org/abs/1902.03624
Autor:
Fuhrmeister, B., Czesla, S., Schmitt, J. H. M. M., Johnson, E. N., Schöfer, P., Jeffers, S. V., Caballero, J. A., Zechmeister, M., Reiners, A., Ribas, I., Amado, P. J., Quirrenbach, A., Bauer, F., Béchar, V. J. S., Cortés-Contreras, M., Alonso, E. Díez, Dreizler, S., Galadí-Enríquez, D., Guenther, E. W., Kaminski, A., Kürster, M., Lafarga, M., Montes, D.
Publikováno v:
A&A 623, A24 (2019)
We use spectra from CARMENES, the Calar Alto high-Resolution search for M dwarfs with Exo-earths with Near-infrared and optical Echelle Spectrographs, to search for periods in chromospheric indices in 16 M0 to M2 dwarfs. We measure spectral indices i
Externí odkaz:
http://arxiv.org/abs/1901.05173
Autor:
Alonso, E. Díez, Hernández, J. I. González, Toledo-Padrón, B., Gómez, S. L. Suárez, Mascareño, A. Suárez, Aguado, D. S., Gutiérrez, C. González, Cabrera-Lavers, A., Carballido-Landeira, J., Bonavera, L., Juez, F. J. de Cos, Rebolo, R.
We present a super-Earth orbiting close to the inner edge of the habitable zone of the cool dwarf star K2-286 (EPIC 249889081), detected with data from the K2 mission in its $15^{th}$ campaign. The planet has radius of $2.1\pm0.2$ R$_{\oplus}$, near
Externí odkaz:
http://arxiv.org/abs/1901.04739
Autor:
Toledo-Padrón, B., Hernández, J. I. González, Rodríguez-López, C., Mascareño, A. Suárez, Rebolo, R., Butler, R. P., Ribas, I., Anglada-Escudé, G., Johnson, E. N., Reiners, A., Caballero, J. A., Quirrenbach, A., Amado, P. J., Béjar, V. J. S., Morales, J. C., Perger, M., Jeffers, S. V., Vogt, S., Teske, J., Shectman, S., Crane, J., Díaz, M., Arriagada, P., Holden, B., Burt, J., Rodríguez, E., Herrero, E., Murgas, F., Pallé, E., Morales, N., López-González, M. J., Alonso, E. Díez, Tuomi, M., Kiraga, M., Engle, S. G., Guinan, E. F., Strachan, J. B. P., Aceituno, F. J., Aceituno, J., Casanova, V. M., Martín-Ruiz, S., Montes, D., Ortiz, J. L., Sota, A., Briol, J., Barbieri, L., Cervini, I., Deldem, M., Dubois, F., Hambsch, F. -J., Harris, B., Kotnik, C., Logie, L., Lopez, J., McNeely, M., Ogmen, Y., Pérez, L., Rau, S., Rodríguez, D., Urquijo, F. S., Vanaverbeke, S.
The search for Earth-like planets around late-type stars using ultra-stable spectrographs requires a very precise characterization of the stellar activity and the magnetic cycle of the star, since these phenomena induce radial velocity (RV) signals t
Externí odkaz:
http://arxiv.org/abs/1812.06712