Zobrazeno 1 - 10
of 543
pro vyhledávání: '"Primas, F"'
To test the potential disruptive effect of Artificial Intelligence (AI) transformers (e.g., ChatGPT) and their associated Large Language Models on the time allocation process, both in proposal reviewing and grading, an experiment has been set-up at E
Externí odkaz:
http://arxiv.org/abs/2407.02992
Autor:
Lucchesi, R., Jablonka, P., Skúladóttir, Á., Lardo, C., Mashonkina, L., Primas, F., Venn, K., Hill, V., Minniti, D.
Publikováno v:
A&A 686, A266 (2024)
We present our analysis of VLT/UVES and X-shooter observations of six very metal-poor stars, including four stars at [Fe/H]$\approx$$-3$ in the Fornax and Carina dwarf spheroidal (dSph) galaxies. To date, this metallicity range in these two galaxies
Externí odkaz:
http://arxiv.org/abs/2312.07676
Autor:
Lucchesi, R., Lardo, C., Primas, F., Jablonka, P., North, P., Battaglia, G., Starkenburg, E., Hill, V., Irwin, M., Francois, P., Shetrone, M., Tolstoy, E., Venn, K.
Publikováno v:
A&A 644, A75 (2020)
We present the high-resolution spectroscopic analysis of two new extremely metal-poor stars (EMPS) candidates in the dwarf spheroidal galaxy Sextans. These targets were pre-selected from medium resolution spectra centered around the Ca II triplet in
Externí odkaz:
http://arxiv.org/abs/2001.11033
Autor:
Theler, R., Jablonka, P., Lucchesi, R., Lardo, C., North, P., Irwin, M., Battaglia, G., Hill, V., Tolstoy, E., Venn, K., Helmi, A., Kaufer, A., Primas, F., Shetrone, M.
We present the analysis of the FLAMES dataset targeting the central 25 arcmin region of the Sextans dSph. This dataset is the third major part of the high resolution spectroscopic section of the ESO large program 171.B-0588(A) obtained by the Dwarf g
Externí odkaz:
http://arxiv.org/abs/1911.08627
Akademický článek
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Autor:
Proxauf, B., da Silva, R., Kovtyukh, V. V., Bono, G., Inno, L., Lemasle, B., Pritchard, J., Przybilla, N., Storm, J., Urbaneja, M. A., Valenti, E., Bergemann, M., Buonanno, R., D'Orazi, V., Fabrizio, M., Ferraro, I., Fiorentino, G., Francois, P., Iannicola, G., Laney, C. D., Kudritzki, R. -P., Matsunaga, N., Nonino, M., Primas, F., Romaniello, M., Thevenin, F.
Publikováno v:
A&A 616, A82 (2018)
We gathered more than 1130 high-resolution optical spectra for more than 250 Galactic classical Cepheids. The spectra were collected with different optical spectrographs: UVES at VLT, HARPS at 3.6m, FEROS at 2.2m MPG/ESO, and STELLA. To improve the e
Externí odkaz:
http://arxiv.org/abs/1805.00727
Autor:
Lemasle, B., Groenewegen, M. A. T., Grebel, E. K., Bono, G., Fiorentino, G., François, P., Inno, L., Kovtyukh, V. V., Matsunaga, N., Pedicelli, S., Primas, F., Pritchard, J., Romaniello, M., da Silva, R.
Publikováno v:
A&A 608, A85 (2017)
Context: Cepheids are excellent tracers of young stellar populations. They play a crucial role in astrophysics as standard candles. The chemistry of classical Cepheids in the Milky Way is now quite well-known. Despite a much larger sample, the chemic
Externí odkaz:
http://arxiv.org/abs/1709.03083
Autor:
Wang, Y., Primas, F., Charbonnel, C., Van der Swaelmen, M., Bono, G., Chantereau, W., Zhao, G.
Publikováno v:
A&A 607, A135 (2017)
We analyzed the high-resolution spectra of a large sample of AGB and RGB stars in the Galactic globular clusters (GCs) NGC 104, NGC 6121, and NGC 6809 obtained with FLAMES/GIRAFFE at ESO/VLT, and determined their Na abundances. This is the first time
Externí odkaz:
http://arxiv.org/abs/1708.07634
Publikováno v:
A&A 601, A31 (2017)
The study of the Milky Way relies on our ability to interpret the light from stars correctly. This calls for a reinvestigation of how reliably we can determine, e.g., iron abundances in such stars and how well they reproduce those of dwarf stars. Her
Externí odkaz:
http://arxiv.org/abs/1701.06132
Autor:
Wang, Y., Primas, F., Charbonnel, C., Van der Swaelmen, M., Bono, G., Chantereau, W., Zhao, G.
Publikováno v:
A&A 592, A66 (2016)
Galactic globular clusters (GC) are known to have multiple stellar populations and be characterised by similar chemical features, e.g. O-Na anti-correlation. While second-population stars, identified by their Na overabundance, have been found from th
Externí odkaz:
http://arxiv.org/abs/1606.00973