Zobrazeno 1 - 10
of 2 231
pro vyhledávání: '"De Silva, G."'
Autor:
Buder, S., Kos, J., Wang, E. X., McKenzie, M., Howell, M., Martell, S. L., Hayden, M. R., Zucker, D. B., Nordlander, T., Montet, B. T., Traven, G., Bland-Hawthorn, J., De Silva, G. M., Freeman, K. C., Lewis, G. F., Lind, K., Sharma, S., Simpson, J. D., Stello, D., Zwitter, T., Amarsi, A. M., Armstrong, J. J., Banks, K., Beavis, M. A., Beeson, K., Chen, B., Ciucă, I., Da Costa, G. S., de Grijs, R., Martin, B., Nataf, D. M., Ness, M. K., Rains, A. D., Scarr, T., Vogrinčič, R., Wang, Z., Wittenmyer, R. A., Xie, Y., Collaboration, The GALAH
The stars of the Milky Way carry the chemical history of our Galaxy in their atmospheres as they journey through its vast expanse. Like barcodes, we can extract the chemical fingerprints of stars from high-resolution spectroscopy. The fourth data rel
Externí odkaz:
http://arxiv.org/abs/2409.19858
Autor:
Covino, S., Cristiani, S., Alcala', J. M., Alencar, S. H. P., Balashev, S. A., Barbuy, B., Bastian, N., Battino, U., Bissell, L., Bristow, P., Calcines, A., Calderone, G., Cambianica, P., Carini, R., Carter, B., Cassisi, S., Castilho, B. V., Cescutti, G., Christlieb, N., Cirami, R., Conzelmann, R., Coretti, I., Cooke, R., Cremonese, G., Cunha, K., Cupani, G., da Silva, A. R., D'Auria, D., De Caprio, V., De Cia, A., Dekker, H., D'Elia, V., De Silva, G., Diaz, M., Di Marcantonio, P., D'Odorico, V., Ernandes, H., Evans, C., Fitzsimmons, A., Franchini, M., Gaensicke, B., Genoni, M., Giribaldi, R. E., Gneiding, C., Grazian, A., Hansen, C. J., Hopgood, J., Kosmalski, J., La Forgia, F., La Penna, P., Landoni, M., Lazzarin, M., Lunney, D., Maciel, W., Marcolino, W., Marconi, M., Migliorini, A., Miller, C., Modigliani, A., Noterdaeme, P., Oggioni, L., Opitom, C., Pariani, G., Pilecki, B., Piranomonte, S., Quirrenbach, A., Redaelli, E. M. A., Pereira, C. B., Randich, S., Rossi, S., Sanchez-Janssen, R., Schoeller, M., Seifert, W., Smiljanic, R., Snodgrass, C., Squalli, O., Stilz, I., Stuermer, J., Trost, A., Vanzella, E., Ventura, P., Verducci, O., Waring, C., Watson, S., Wells, M., Wright, D., Zafar, T., Zanutta, A., Zins, G.
In spite of the advent of extremely large telescopes in the UV/optical/NIR range, the current generation of 8-10m facilities is likely to remain competitive at ground-UV wavelengths for the foreseeable future. The Cassegrain U-Band Efficient Spectrog
Externí odkaz:
http://arxiv.org/abs/2212.12791
Autor:
Cristiani, S., Alcalá, J. M., Alencar, S. H. P., Balashev, S. A., Bastian, N., Barbuy, B., Battino, U., Calcines, A., Calderone, G., Cambianica, P., Carini, R., Carter, B., Cassisi, S., Castilho, B. V., Cescutti, G., Christlieb, N., Cirami, R., Coretti, I., Cooke, R., Covino, S., Cremonese, G., Cunha, K., Cupani, G., da Silva, A. R., De Caprio, V., De Cia, A., Dekker, H., D'Elia, V., De Silva, G., Diaz, M., Di Marcantonio, P., D'Auria, D., D'Odorico, V., Fitzsimmons, A., Ernandes, H., Evans, C., Franchini, M., Genoni, M., Gänsicke, B., Giribaldi, R. E., Gneiding, C., Grazian, A., Hansen, C. J., La Forgia, F., Landoni, M., Lazzarin, M., Lunney, D., Maciel, W., Marcolino, W., Marconi, M., Migliorini, A., Miller, C., Noterdaeme, P., Opitom, C., Pariani, G., Pilecki, B., Piranomonte, S., Quirrenbach, A., Redaelli, E. M. A., Pereira, C. B., Randich, S., Rossi, S., Sanchez-Janssen, R., Seifert, W., Smiljanic, R., Snodgrass, C., Stilz, I., Stürmer, J., Vanzella, E., Ventura, P., Verducci, O., Waring, C., Watson, S., Wells, M., Wright, D., Zafar, T., Zanutta, A.
In the era of Extremely Large Telescopes, the current generation of 8-10m facilities are likely to remain competitive at ground-UV wavelengths for the foreseeable future. The Cassegrain U-Band Efficient Spectrograph (CUBES) has been designed to provi
Externí odkaz:
http://arxiv.org/abs/2208.01672
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
Autor:
Munari, U., Traven, G., Masetti, N., Valisa, P., Righetti, G. -L., Hambsch, F. -J., Frigo, A., Cotar, K., De Silva, G. M., Freeman, K. C., Lewis, G. F., Martell, S. L., Sharma, S., Simpson, J. D., Ting, Y. -S., Wittenmyer, R. A., Zucker, D. B.
We have identified a first group of 33 new candidates for symbiotic stars (SySt) of the accreting-only variety among the 600,255 stars so far observed by the GALAH high-resolution spectroscopic survey of the Southern Hemisphere, more than doubling th
Externí odkaz:
http://arxiv.org/abs/2104.02686
The GALAH survey: effective temperature calibration from the InfraRed Flux Method in the Gaia system
Autor:
Casagrande, L., Lin, J., Rains, A. D., Liu, F., Buder, S., Horner, J., Asplund, M., Lewis, G. F., Martell, S. L., Nordlander, T., Stello, D., Ting, Y. -S., Wittenmyer, R. A., Bland-Hawthorn, J., Casey, A. R., De Silva, G. M., D'Orazi, V., Freeman, K. C., Hayden, M. R., Kos, J., Lind, K., Schlesinger, K. J., Sharma, S., Simpson, J. D., Zucker, D. B., Zwitter, T.
In order to accurately determine stellar properties, knowledge of the effective temperature of stars is vital. We implement Gaia and 2MASS photometry in the InfraRed Flux Method and apply it to over 360,000 stars across different evolutionary stages
Externí odkaz:
http://arxiv.org/abs/2011.02517
Autor:
Amarsi, A. M., Lind, K., Osorio, Y., Nordlander, T., Bergemann, M., Reggiani, H., Wang, E. X., Buder, S., Asplund, M., Barklem, P. S., Wehrhahn, A., Skúladóttir, Á., Kobayashi, C., Karakas, A. I., Gao, X. D., Bland-Hawthorn, J., De Silva, G. M., Kos, J., Lewis, G. F., Martell, S. L., Sharma, S., Simpson, J. D., Zucker, D. B., Čotar, K., Horner, J., collaboration, the GALAH
Publikováno v:
A&A 642, A62 (2020)
Massive sets of stellar spectroscopic observations are rapidly becoming available and these can be used to determine the chemical composition and evolution of the Galaxy with unprecedented precision. One of the major challenges in this endeavour invo
Externí odkaz:
http://arxiv.org/abs/2008.09582
Autor:
Traven, G., Feltzing, S., Merle, T., Van der Swaelmen, M., Čotar, K., Church, R., Zwitter, T., Ting, Y. -S., Sahlholdt, C., Asplund, M., Bland-Hawthorn, J., De Silva, G., Freeman, K., Martell, S., Sharma, S., Zucker, D., Buder, S., Casey, A., D'Orazi, V., Kos, J., Lewis, G., Lin, J., Lind, K., Simpson, J., Stello, D., Munari, U., Wittenmyer, R. A.
Publikováno v:
A&A 638, A145 (2020)
Binary stellar systems form a large fraction of the Galaxy's stars. They are useful as laboratories for studying the physical processes taking place within stars, and must be correctly taken into account when observations of stars are used to study t
Externí odkaz:
http://arxiv.org/abs/2005.00014
Autor:
Li, T. S., Koposov, S. E., Zucker, D. B., Lewis, G. F., Kuehn, K., Simpson, J. D., Ji, A. P., Shipp, N., Mao, Y. -Y., Geha, M., Pace, A. B., Mackey, A. D., Allam, S., Tucker, D. L., Da Costa, G. S., Erkal, D., Simon, J. D., Mould, J. R., Martell, S. L., Wan, Z., De Silva, G. M., Bechtol, K., Balbinot, E., Belokurov, V., Bland-Hawthorn, J., Casey, A. R., Cullinane, L., Drlica-Wagner, A., Sharma, S., Vivas, A. K., Wechsler, R. H., Yanny, B.
We introduce the Southern Stellar Stream Spectroscopy Survey (${S}^5$), an on-going program to map the kinematics and chemistry of stellar streams in the Southern Hemisphere. The initial focus of ${S}^5$ has been spectroscopic observations of recentl
Externí odkaz:
http://arxiv.org/abs/1907.09481