Zobrazeno 1 - 10
of 2 000
pro vyhledávání: '"Schlesinger, K"'
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:
Buder, S., Asplund, M., Duong, L., Kos, J., Lind, K., Ness, M. K., Sharma, S., Bland-Hawthorn, J., Casey, A. R., De Silva, G. M., D'Orazi, V., Freeman, K. C., Lewis, G. F., Lin, J., Martell, S. L., Schlesinger, K. J., Simpson, J. D., Zucker, D. B., Zwitter, T., Amarsi, A. M., Anguiano, B., Carollo, D., Cotar, K., Cottrell, P. L., Da Costa, G., Gao, X. D., Hayden, M. R., Horner, J., Ireland, M. J., Kafle, P. R., Munari, U., Nataf, D. M., Nordlander, T., Stello, Dennis, Ting, Y. -S., Traven, G., Watson, F., Wittenmyer, R. A., Wyse, R. F. G., Yong, D., Zinn, J. C., Zerjal, M.
The Galactic Archaeology with HERMES (GALAH) survey is a large-scale stellar spectroscopic survey of the Milky Way and designed to deliver chemical information complementary to a large number of stars covered by the $Gaia$ mission. We present the GAL
Externí odkaz:
http://arxiv.org/abs/1804.06041
Autor:
Buder, S., Lind, K., Ness, M. K., Asplund, M., Duong, L., Lin, J., Kos, J., Casagrande, L., Casey, A. R., Bland-Hawthorn, J., De Silva, G. M., D'Orazi, V., Freeman, K. C., Martell, S. L., Schlesinger, K. J., Sharma, S., Simpson, J. D., Zucker, D. B., Zwitter, T., Cotar, K., Dotter, A., Hayden, M. R., Hyde, E. A., Kafle, P. R., Lewis, G. F., Nataf, D. M., Nordlander, T., Reid, W., Rix, H. -W., Skuladottir, A., Stello, D., Ting, Y. -S., Traven, G., Wyse, R. F. G.
Publikováno v:
A&A 624, A19 (2019)
The overlap between the spectroscopic Galactic Archaeology with HERMES (GALAH) survey & $Gaia$ provides a high-dimensional chemodynamical space of unprecedented size. We present a first analysis of a subset of this overlap, of 7066 dwarf, turn-off, &
Externí odkaz:
http://arxiv.org/abs/1804.05869
Autor:
Duong, L., Freeman, K. C., Asplund, M., Casagrande, L., Buder, S., Lind, K., Ness, M., Bland-Hawthorn, J., De Silva, G. M., D'Orazi, V., Kos, J., Lewis, G. F., Lin, J., Martell, S. L., Schlesinger, K., Sharma, S., Simpson, J. D., Zucker, D. B., Zwitter, T., Anguiano, B., Da Costa, G. S., Hyde, E., Horner, J., Kafle, P. R., Nataf, D. M., Reid, W., Stello, D., Ting, Y. -S., Wyse, R. F. G.
Using data from the GALAH pilot survey, we determine properties of the Galactic thin and thick disks near the solar neighbourhood. The data cover a small range of Galactocentric radius ($7.9 \leq R_\mathrm{GC} \leq 9.5$ kpc), but extend up to 4 kpc i
Externí odkaz:
http://arxiv.org/abs/1801.01514
Autor:
Traven, G., Matijevič, G., Zwitter, T., Žerjal, M., Kos, J., Asplund, M., Bland-Hawthorn, J., Casey, A. R., De Silva, G., Freeman, K., Lin, J., Martell, S. L., Schlesinger, K. J., Sharma, S., Simpson, J. D., Zucker, D. B., Anguiano, B., Da Costa, G., Duong, L., Horner, J., Hyde, E. A., Kafle, P. R., Munari, U., Nataf, D., Navin, C. A., Reid, W., Ting, Y. -S.
Galah is an ongoing high-resolution spectroscopic survey with the goal of disentangling the formation history of the Milky Way, using the fossil remnants of disrupted star formation sites which are now dispersed around the Galaxy. It is targeting a r
Externí odkaz:
http://arxiv.org/abs/1612.02242
Autor:
Casagrande, L., Aguirre, V. Silva, Schlesinger, K. J., Stello, D., Huber, D., Serenelli, A. M., Schoenrich, R., Cassisi, S., Pietrinferni, A., Hodgkin, S., Milone, A. P., Feltzing, S., Asplund, M.
The existence of a vertical age gradient in the Milky Way disc has been indirectly known for long. Here, we measure it directly for the first time with seismic ages, using red giants observed by Kepler. We use Stroemgren photometry to gauge the selec
Externí odkaz:
http://arxiv.org/abs/1510.01376
Autor:
Fernández-Alvar, E., Prieto, C. Allende, Schlesinger, K. J., Beers, T. C., Robin, A. C., Schneider, D. P., Lee, Y. S., Bizyaev, D., Ebelke, G., Malanushenko, E., Malanushenko, V., Oravetz, D., Pan, K., Simmons, A.
We analyze a sample of 3,944 low-resolution (R ~ 2000) optical spectra from the Sloan Digital Sky Survey (SDSS), focusing on stars with effective temperatures 5800 < Teff < 6300 K, and distances from the Milky Way plane in excess of 5 kpc, and determ
Externí odkaz:
http://arxiv.org/abs/1503.04362
Autor:
De Silva, G. M., Freeman, K. C., Bland-Hawthorn, J., Martell, S., de Boer, E. Wylie, Asplund, M., Keller, S., Sharma, S., Zucker, D. B., Zwitter, T., Anguiano, B., Bacigalupo, C., Bayliss, D., Beavis, M. A., Bergemann, M., Campbell, S., Cannon, R., Carollo, D., Casagrande, L., Casey, A. R., Da Costa, G., D'Orazi, V., Dotter, A., Duong, L., Heger, A., Ireland, M. J., Kafle, P. R., Kos, J., Lattanzio, J., Lewis, G. F., Lin, J., Lind, K., Munari, U., Nataf, D. M., O'Toole, S., Parker, Q. A., Reid, W., Schlesinger, K. J., Sheinis, A., Simpson, J. D., Stello, D., Ting, Y-S., Traven, G., Watson, F., Wittenmyer, R., Yong, D., Zerjal, M.
The GALAH survey is a large high-resolution spectroscopic survey using the newly commissioned HERMES spectrograph on the Anglo-Australian Telescope. The HERMES spectrograph provides high-resolution (R ~28,000) spectra in four passbands for 392 stars
Externí odkaz:
http://arxiv.org/abs/1502.04767
Autor:
Prieto, C. Allende, Fernandez-Alvar, E., Schlesinger, K. J., Lee, Y. S., Morrison, H. L., Schneider, D. P., Beers, T. C., Bizyaev, D., Ebelke, G., Malanushenko, E., Malanushenko, V., Oravetz, D., Pan, K., Simmons, A., Simmerer, J., Sobeck, J., Robin, A. C.
We analyze a sample of tens of thousands of spectra of halo turnoff stars, obtained with the optical spectrographs of the Sloan Digital Sky Survey (SDSS), to characterize the stellar halo population "in situ" out to a distance of a few tens of kpc fr
Externí odkaz:
http://arxiv.org/abs/1406.4997
Autor:
Casagrande, L., Aguirre, V. Silva, Stello, D., Huber, D., Serenelli, A. M., Cassisi, S., Dotter, A., Milone, A. P., Hodgkin, S., Marino, A. F., Lund, M. N., Pietrinferni, A., Asplund, M., Feltzing, S., Flynn, C., Grundahl, F., Nissen, P. E., Schoenrich, R., Schlesinger, K. J., Wang, W.
Asteroseismology has the capability of precisely determining stellar properties which would otherwise be inaccessible, such as radii, masses and thus ages of stars. When coupling this information with classical determinations of stellar parameters, s
Externí odkaz:
http://arxiv.org/abs/1403.2754