Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Jiménez Esteban, F. M."'
Autor:
López-Sanjuan, C., Tremblay, P. -E., O'Brien, M. W., Spinoso, D., Ederoclite, A., Ramió, H. Vázquez, Cenarro, A. J., Marín-Franch, A., Civera, T., Carrasco, J. M., Gänsicke, B. T., Fusillo, N. P. Gentile, Hernán-Caballero, A., Hollands, M. A., del Pino, A., Sánchez, H. Domínguez, Fernández-Ontiveros, J. A., Jiménez-Esteban, F. M., Rebassa-Mansergas, A., Schmidtobreick, L., Angulo, R. E., Cristòbal-Hornillos, D., Dupke, R. A., Hernández-Monteagudo, C., Moles, M., Sodré Jr., L., Varela, J.
Publikováno v:
A&A 691, A211 (2024)
We used the Javalambre Photometric Local Universe Survey (J-PLUS) DR2 photometry in twelve optical bands over 2176 deg2 to estimate the fraction of white dwarfs with presence of CaII H+K absorption along the cooling sequence. We compared the J-PLUS p
Externí odkaz:
http://arxiv.org/abs/2406.16055
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:
López-Sanjuan, C., Ramió, H. Vázquez, Xiao, K., Yuan, H., Carrasco, J. M., Varela, J., Cristóbal-Hornillos, D., Tremblay, P. -E., Ederoclite, A., Marín-Franch, A., Cenarro, A. J., Coelho, P. R. T., Daflon, S., del Pino, A., Sánchez, H. Domínguez, Fernández-Ontiveros, J. A., Hernán-Caballero, A., Jiménez-Esteban, F. M., Alcaniz, J., Angulo, R. E., Dupke, R. A., Hernández-Monteagudo, C., Moles, M., Sodré Jr, L.
We present the photometric calibration of the twelve optical passbands for the Javalambre Photometric Local Universe Survey (J-PLUS) third data release (DR3), comprising 1642 pointings of two square degrees each. We selected nearly 1.5 million main s
Externí odkaz:
http://arxiv.org/abs/2301.12395
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:
Ambrosch, M., Guiglion, G., Mikolaitis, Š., Chiappini, C., Tautvaišienė, G., Nepal, S., Gilmore, G., Randich, S., Bensby, T., Bergemann, M., Morbidelli, L., Pancino, E., Sacco, G. G., Smiljanic, R., Zaggia, S., Jofré, P., Jiménez-Esteban, F. M.
Publikováno v:
A&A 672, A46 (2023)
We aim to prepare the machine-learning ground for the next generation of spectroscopic surveys, such as 4MOST and WEAVE. Our goal is to show that convolutional neural networks can predict accurate stellar labels from relevant spectral features in a p
Externí odkaz:
http://arxiv.org/abs/2208.08872
Autor:
López-Sanjuan, C., Tremblay, P. -E., Ederoclite, A., Ramió, H. Vázquez, Cenarro, A. J., Marín-Franch, A., Varela, J., Akras, S., Guerrero, M. A., Jiménez-Esteban, F. M., de Oliveira, R. Lopes, Chies-Santos, A. L., Fernández-Ontiveros, J. A., Abramo, R., Alcaniz, J., Benítez, N., Bonoli, S., Carneiro, S., Cristóbal-Hornillos, D., Dupke, R. A., de Oliveira, C. Mendes, Moles, M., Sodré Jr., L., Taylor, K.
Publikováno v:
A&A 665, A151 (2022)
We analyze the white dwarf population in miniJPAS, the first square degree observed with 56 medium-band, 145 A in width optical filters by the Javalambre Physics of the accelerating Universe Astrophysical Survey (J-PAS), to provide a data-based forec
Externí odkaz:
http://arxiv.org/abs/2203.10615
The $Gaia$ mission has provided an unprecedented wealth of information about the white dwarf population of our Galaxy. In particular, our studies show that the sample up to 100\,pc from the Sun can be considered as practically complete. This fact all
Externí odkaz:
http://arxiv.org/abs/2202.04199
Autor:
Bragaglia, A., Alfaro, E., Flaccomio, E., Blomme, R., Donati, P., Costado, M., Damiani, F., Franciosini, E., Prisinzano, L., Randich, S., Friel, E. D., Hatztidimitriou, D., Vallenari, A., Spagna, A., Balaguer-Nunez, L., Bonito, R., Cantat-Gaudin, T., Casamiquela, L., Jeffries, R. D., Jordi, C., Magrini, L., Drew, J. E., Jackson, R. J., Abbas, U., Caramazza, M., Hayes, C., Jimenez-Esteban, F. M., Fiorentin, P. Re, Wright, N., Bensby, T., Bergemann, M., Gilmore, G., Gonneau, A., Heiter, U., Hourihane, A., Pancino, E., Sacco, G., Smiljanic, R., Zaggia, S.
Publikováno v:
A&A 659, A200 (2022)
The Gaia-ESO Survey (GES) is a public, high-resolution spectroscopic survey with FLAMES@VLT. GES targeted in particular a large sample of open clusters (OCs) of all ages. The different kinds of OCs are useful to reach the main science goals, which ar
Externí odkaz:
http://arxiv.org/abs/2112.11974
Autor:
López-Sanjuan, C., Tremblay, P. -E., Ederoclite, A., Ramió, H. Vázquez, Carrasco, J. M., Varela, J., Cenarro, A. J., Marín-Franch, A., Civera, T., Daflon, S., Gänsicke, B. T., Fusillo, N. P. Gentile, Jiménez-Esteban, F. M., Alcaniz, J., Angulo, R. E., Cristóbal-Hornillos, D., Dupke, R. A., Hernández-Monteagudo, C., Moles, M., Sodré Jr, L.
Publikováno v:
A&A 658, A79 (2022)
We estimated the spectral evolution of white dwarfs with effective temperature using the Javalambre Photometric Local Universe Survey (J-PLUS) second data release (DR2), that provides twelve photometric optical passbands over 2176 deg2. We analysed 5
Externí odkaz:
http://arxiv.org/abs/2110.14421
Autor:
Baratella, M., D'Orazi, V., Sheminova, V., Spina, L., Carraro, G., Gratton, R., Magrini, L., Randich, S., Lugaro, M., Pignatari, M., Romano, D., Biazzo, K., Bragaglia, A., Casali, G., Desidera, S., Frasca, A., de Silva, G., Melo, C., Van der Swaelmen, M., Tautvaišienė, G., Jiménez-Esteban, F. M., Gilmore, G., Bensby, T., Smiljanic, R., Bayo, A., Franciosini, E., Gonneau, A., Hourihane, A., Jofré, P., Monaco, L., Morbidelli, L., Sacco, G., Sbordone, L., Worley, C., Zaggia, S.
Publikováno v:
A&A 653, A67 (2021)
Young open clusters (t<200 Myr) have been observed to exhibit several peculiarities in their chemical compositions, from a slightly sub-solar iron content, super-solar abundances of some atomic species (e.g. ionised chromium), and atypical enhancemen
Externí odkaz:
http://arxiv.org/abs/2107.12381