Zobrazeno 1 - 10
of 597
pro vyhledávání: '"Ojeda, R"'
Autor:
Casewell, S. L., Debes, J., Dupuy, T. J., Dufour, P., Bonsor, A., Rebassa-Mansergas, A., Murillo-Ojeda, R., French, J. R., Alexander, R. D., Xu, Siyi, Martin, E., Manjavacas, E.
We present new results on PHL 5038AB, a widely separated binary system composed of a white dwarf and a brown dwarf, refining the white and brown dwarf parameters and determining the binary separation to be $66^{+12}_{-24}$~AU. New spectra of the whit
Externí odkaz:
http://arxiv.org/abs/2404.05488
Autor:
Torres, S., Cruz, P., Murillo-Ojeda, R., Jiménez-Esteban, F. M., Rebassa-Mansergas, A., Solano, E., Camisassa, M. E., Raddi, R., Lourec, J. Doliguez Le
Publikováno v:
A&A 677, A159 (2023)
The characterization of white dwarf atmospheres is crucial for accurately deriving stellar parameters such as effective temperature, mass, and age. We aim to classify the population of white dwarfs up to 500 pc into hydrogen-rich or hydrogen-deficien
Externí odkaz:
http://arxiv.org/abs/2307.13629
Autor:
Jiménez-Esteban, F. M., Torres, S., Rebassa-Mansergas, A., Cruz, P., Murillo-Ojeda, R., Solano, E., Rodrigo, C., Camisassa, M. E.
The third data release of Gaia has provided low resolution spectra for ~100,000 white dwarfs (WDs) that, together with the excellent photometry and astrometry, represent an unrivalled benchmark for the study of this population. In this work, we first
Externí odkaz:
http://arxiv.org/abs/2211.08852
Autor:
Aranda, V.A., Figueroa, I.A., Amigó, V., González-Ojeda, R., Lozada, O., Vidilli, A.L., Otani, L.B., Gonzalez, G.
Publikováno v:
In Journal of Alloys and Compounds 15 October 2023 960
Publikováno v:
In Journal of Alloys and Compounds 10 September 2023 955
Akademický článek
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Autor:
Lodieu, N., Alonso, R., Hernandez, J. I. Gonzalez, Sanchis-Ojeda, R., Narita, N., Kawashima, Y., Kawauchi, K., Mascareño, A. Suarez, Deeg, H., Arranz, J. Prieto, Rebolo, R., Palle, E., Bejar, V. J. S., Ferragamo, A., Rubiño-Martin, J. A.
Publikováno v:
A&A 584, A128 (2015)
We aim at constraining evolutionary models at low mass and young ages by identifying interesting transiting system members of the nearest OB association to the Sun, Upper Scorpius, targeted by the Kepler mission. We produced light curves for M dwarf
Externí odkaz:
http://arxiv.org/abs/1511.03083
Publikováno v:
A&A 584, L8 (2015)
The star HD144548 (=HIP~78977; TYP~6212-1273-1) has been known as a detached eclipsing binary and a bona-fide member of the Upper Scorpius OB association. Continuous photometry from the K2 mission on Campaign Two has revealed the presence of addition
Externí odkaz:
http://arxiv.org/abs/1510.03773
Autor:
Sanchis-Ojeda, R., Rappaport, S., Pallé, E., Delrez, L., DeVore, J., Gandolfi, D., Fukui, A., Ribas, I., Stassun, K. G., Albrecht, S., Dai, F., Gaidos, E., Gillon, M., Hirano, T., Holman, M., Howard, A. W., Isaacson, H., Jehin, E., Kuzuhara, M., Mann, A. W., Marcy, G. W., Miles-Páez, P. A., Montañés-Rodríguez, P. A., Murgas, F., Narita, N., Nowak, G., Onitsuka, M., Paegert, M., Van Eylen, V., Winn, J. N., Yu, L.
We present the discovery of a transiting exoplanet candidate in the K2 Field-1 with an orbital period of 9.1457 hr: K2-22b. The highly variable transit depths, ranging from $\sim$0\% to 1.3\%, are suggestive of a planet that is disintegrating via the
Externí odkaz:
http://arxiv.org/abs/1504.04379
Autor:
Rappaport, S., Nelson, L., Levine, A., Sanchis-Ojeda, R., Gandolfi, D., Nowak, G., Palle, E., Prsa, A.
We report the discovery of two new low-mass, thermally bloated, hot white dwarfs among the Kepler sample of eclipsing binaries. These are KIC 9164561 and KIC 10727668 with orbital periods of 1.2670 and 2.3058 days, respectively. The current primary i
Externí odkaz:
http://arxiv.org/abs/1502.02303