Zobrazeno 1 - 10
of 387
pro vyhledávání: '"Tautvaisiene, G."'
Autor:
Van der Swaelmen, M., Vazquez, C. Viscasillas, Magrini, L., Recio-Blanco, A., Palicio, P. A., Worley, C., Vallenari, A., Spina, L., François, P., Tautvaišiene, G., Sacco, G. G., Randich, S., de Laverny, P.
(abridged) The third data release of Gaia, has provided stellar parameters, metallicity [M/H], [{\alpha}/Fe], individual abundances, broadening parameter from its RVS spectra for about 5.6 million objects thanks to the GSP-Spec module. The catalogue
Externí odkaz:
http://arxiv.org/abs/2407.04204
Autor:
Pilyugin, L. S., Tautvaisiene, G.
We examine whether there are deviations of the local central oxygen abundances in spiral galaxies from the general metallicity gradients. We compare the values of the central intersect oxygen abundances estimated from the metallicity gradient based o
Externí odkaz:
http://arxiv.org/abs/2407.00739
Autor:
Vázquez, C. Viscasillas, Magrini, L., Miret-Roig, N., Wright, N. J., Alves, J., Spina, L., Church, R. P., Tautvaišienė, G., Randich, S.
Context: Star clusters, composed of stars born from the same molecular cloud, serve as invaluable natural laboratories for understanding the fundamental processes governing stellar formation and evolution. Aims: This study aims to investigate correla
Externí odkaz:
http://arxiv.org/abs/2407.00605
Autor:
Bragaglia, A., D'Orazi, V., Magrini, L., Baratella, M., Bensby, T., Martell, S., Randich, S., Tautvaisiene, G., Alfaro, E. J., Morbidelli, L., Smiljanic, R., Zaggia, S.
Context: The light element (anti-)correlations shown by globular clusters (GCs) are the main spectroscopic signature of multiple stellar populations. These internal abundance variations provide us with fundamental constraints on the formation mechani
Externí odkaz:
http://arxiv.org/abs/2406.07022
Autor:
Carbajo-Hijarrubia, J., Casamiquela, L., Carrera, R., Balaguer-Núñez, L., Jordi, C., Anders, F., Gallart, C., Pancino, E., Drazdauskas, A., Stonkute, E., Tautvaišiene, G., Carrasco, J. M., Masana, E., Cantat-Gaudin, T., Blanco-Cuaresma, S.
Publikováno v:
A&A 687, A239 (2024)
Context. Open clusters provide valuable information on stellar nucleosynthesis and the chemical evolution of the Galactic disc, as their age and distances can be measured more precisely with photometry than for field stars. Aims. Our aim is to study
Externí odkaz:
http://arxiv.org/abs/2405.00110
Autor:
Worley, C. C., Smiljanic, R., Magrini, L., Frasca, A., Franciosini, E., Montes, D., Feuillet, D. K., Tabernero, H. M., Hernández, J. I. González, Villanova, S., Mikolaitis, Š., Lind, K., Tautvaišienė, G., Casey, A. R., Korn, A. J., Bonifacio, P., Soubiran, C., Caffau, E., Guiglion, G., Merle, T., Hourihane, A., Gonneau, A., François, P., Randich, S., Gilmore, G., Lewis, J. R., Murphy, D. N. A., Jeffries, R. D., Koposov, S. E., Blomme, R., Lanzafame, A. C., Bensby, T., Bragaglia, A., Alfaro, E. J., Walton, N. A., Vallenari, A., Prusti, T., Biazzo, K., Jofré, P., Zaggia, S., Heiter, U., Marfil, E., Jiménez-Esteban, F., Albarrán, M. L. Gutiérrez, Morbidelli, L.
The Gaia-ESO Survey is an European Southern Observatory (ESO) public spectroscopic survey that targeted $10^5$ stars in the Milky Way covering the major populations of the disk, bulge and halo. The observations were made using FLAMES on the VLT obtai
Externí odkaz:
http://arxiv.org/abs/2402.06076
Autor:
Pilyugin, L. S., Tautvaisiene, G.
We considered two sequences of spiral galaxies with different shapes of the radial gas-phase oxygen abundance distributions from the galaxies in the MaNGA survey: (1) Galaxies in which the gradient is well approximated by a single linear relation acr
Externí odkaz:
http://arxiv.org/abs/2401.00458
Autor:
Lagarde, N., Minkeviciute, R., Drazdauskas, A., Tautvaisiene, G., Charbonnel, C., Reylé, C., Miglio, A., Kushwahaa, T., Bale, B.
Despite a rich observational background, few spectroscopic studies have dealt with the measurement of the carbon isotopic ratio in giant stars. However, it is a key element in understanding the mixing mechanisms that occur in the interiors of giant s
Externí odkaz:
http://arxiv.org/abs/2312.08197
Autor:
Guiglion, G., Nepal, S., Chiappini, C., Khoperskov, S., Traven, G., Queiroz, A. B. A., Steinmetz, M., Valentini, M., Fournier, Y., Vallenari, A., Youakim, K., Bergemann, M., Mészáros, S., Lucatello, S., Sordo, R., Fabbro, S., Minchev, I., Tautvaišienė, G., Mikolaitis, Š., Montalbán, J.
In June 2022, Gaia DR3 has provided the astronomy community with about one million spectra from the Radial Velocity Spectrometer (RVS) covering the CaII triplet region. However, one-third of the published spectra have 15
Externí odkaz:
http://arxiv.org/abs/2306.05086
Autor:
Jeffries, R. D., Jackson, R. J., Wright, Nicholas J., Weaver, G., Gilmore, G., Randich, S., Bragaglia, A., Korn, A. J., Smiljanic, R., Biazzo, K., Casey, A. R., Frasca, A., Gonneau, A., Guiglion, G., Morbidelli, L., Prisinzano, L., Sacco, G. G., Tautvaišienė, G., Worley, C. C., Zaggia, S.
We present an empirical model of age-dependent photospheric lithium depletion, calibrated using a large, homogeneously-analysed sample of 6200 stars in 52 open clusters, with ages from 2--6000 Myr and $-0.3<{\rm [Fe/H}]<0.2$, observed in the Gaia-ESO
Externí odkaz:
http://arxiv.org/abs/2304.12197