Zobrazeno 1 - 10
of 872
pro vyhledávání: '"Stello, D"'
Autor:
Vrard, M., Pinsonneault, M. H., Elsworth, Y., Hon, M., Kallinger, T., Kuszlewicz, J., Mosser, B., Garcia, R. A., Tayar, J., Bennett, R., Cao, K., Hekker, S., Loyer, L., Mathur, S., Stello, D.
Evolved cool stars have three distinct evolutionary status: shell Hydrogen-burning (RGB), core Helium and shell Hydrogen burning (RC), and double shell burning (AGB). Asteroseismology can distinguish between the RC and the other status, but distingui
Externí odkaz:
http://arxiv.org/abs/2411.03101
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:
Brogaard, K., Arentoft, T., Miglio, A., Casali, G., Thomsen, J. S., Tailo, M., Montalbán, J., Grisoni, V., Willett, E., Stokholm, A., Grundahl, F., Stello, D., Sandquist, E. L.
Publikováno v:
A&A 679, A23 (2023)
Asteroseismology of solar-like oscillations in giant stars allow the derivation of their masses and radii. For members of open clusters this allows an age estimate of the cluster which should be identical to the age estimate from the colour-magnitude
Externí odkaz:
http://arxiv.org/abs/2308.12731
Autor:
Knudstrup, E., Lund, M. N., Andersen, M. Fredslund, Rørsted, J. L., Hernández, F. Pérez, Grundahl, F., Pallé, P. L., Stello, D., White, T. R., Kjeldsen, H., Vrard, M., Winther, M. L., Handberg, R., Simón-Díaz, S.
Publikováno v:
A&A 675, A197 (2023)
Fundamental stellar parameters such as mass and radius are some of the most important building blocks in astronomy, both when it comes to understanding the star itself and when deriving the properties of any exoplanet(s) they may host. Asteroseismolo
Externí odkaz:
http://arxiv.org/abs/2306.09769
Autor:
Stello, D., Sharma, S.
Publikováno v:
2022, Res. Notes AAS, 6, 168
The asteroseismic scaling relation, dnu~rho^{0.5}, linking a star's large frequency separation, dnu, and its mean density, rho, is not exact. Yet, it provides a very useful way to obtain fundamental stellar properties. Common ways to make the relatio
Externí odkaz:
http://arxiv.org/abs/2305.03221
Autor:
Campbell, S. W., Constantino, T. N., D'Orazi, V., Meakin, C., Stello, D., Christensen-Dalsgaard, J., Kuehn, C., De Silva, G. M., Arnett, W. D., Lattanzio, J. C., MacLean, B. T.
Stellar models provide a vital basis for many aspects of astronomy and astrophysics. Recent advances in observational astronomy - through asteroseismology, precision photometry, high-resolution spectroscopy, and large-scale surveys - are placing stel
Externí odkaz:
http://hdl.handle.net/10150/621500
http://arizona.openrepository.com/arizona/handle/10150/621500
http://arizona.openrepository.com/arizona/handle/10150/621500
Autor:
Brogaard, K., Grundahl, F., Sandquist, E. L., Slumstrup, D., Jensen, M. L., Thomsen, J. B., Jørgensen, J. H., Larsen, J. R., Bjørn, S. T., Sørensen, C. T. G., Bruntt, H., Arentoft, T., Frandsen, S., Jessen-Hansen, J., Orosz, J. A., Mathieu, R., Geller, A., Ryde, N., Stello, D., Meibom, S., Platais, I.
Publikováno v:
A&A 649, A178 (2021)
Models of stellar structure and evolution can be constrained using accurate measurements of the parameters of eclipsing binary members of open clusters. Multiple binary stars provide the means to tighten the constraints and, in turn, to improve the p
Externí odkaz:
http://arxiv.org/abs/2104.14330
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:
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:
Christensen-Dalsgaard, J., Aguirre, V. Silva, Cassisi, S., Bertolami, M. Miller, Serenelli, A., Stello, D., Weiss, A., Angelou, G., Jiang, C., Lebreton, Y., Spada, F., Bellinger, E. P., Deheuvels, S., Ouazzani, R. M., Pietrinferni, A., Mosumgaard, J. R., Townsend, R. H. D., Battich, T., Bossini, D., Constantino, T., Eggenberger, P., Hekker, S., Mazumdar, A., Miglio, A., Nielsen, K. B., Salaris, M.
Context. The large quantity of high-quality asteroseismic data that obtained from space-based photometric missions and the accuracy of the resulting frequencies motivate a careful consideration of the accuracy of computed oscillation frequencies of s
Externí odkaz:
http://arxiv.org/abs/2002.02816