Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Joel C Zinn"'
Publikováno v:
PLoS Computational Biology, Vol 10, Iss 11, p e1003924 (2014)
Assessing brain activity during complex voluntary motor behaviors that require the recruitment of multiple neural sites is a field of active research. Our current knowledge is primarily based on human brain imaging studies that have clear limitations
Externí odkaz:
https://doaj.org/article/04d89ab1105c4196a8990a768b7391ea
Autor:
Jack T. Warfield, Joel C. Zinn, Jessica Schonhut-Stasik, James W. Johnson, Marc H. Pinsonneault, Jennifer A. Johnson, Dennis Stello, Rachael L. Beaton, Yvonne Elsworth, Rafael A. García, Savita Mathur, Benoît Mosser, Aldo Serenelli, Jamie Tayar
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 208 (2024)
We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2 Galactic Archaeology Program and elemental abundances from the Apache Point Galactic Evolut
Externí odkaz:
https://doaj.org/article/512bce4a5d1a42a48eb7f268ce6b845d
Autor:
Jessica Schonhut-Stasik, Joel C. Zinn, Keivan G. Stassun, Marc Pinsonneault, Jennifer A. Johnson, Jack T. Warfield, Dennis Stello, Yvonne Elsworth, Rafael A. García, Savita Mathur, Benoit Mosser, Marc Hon, Jamie Tayar, Guy S. Stringfellow, Rachael L. Beaton, Henrik Jönsson, Dante Minniti
Publikováno v:
The Astronomical Journal, Vol 167, Iss 2, p 50 (2024)
We present a catalog of fundamental stellar properties for ∼7500 evolved stars, including stellar radii and masses, determined from the combination of spectroscopic observations from the Apache Point Observatory Galactic Evolution Experiment, part
Externí odkaz:
https://doaj.org/article/668574a57da84183a0cce3bed9b20edb
Autor:
Daniel B. Zucker, Gayandhi M. De Silva, Joss Bland-Hawthorn, Prajwal R. Kafle, Karin Lind, Thor Tepper-García, Robert A. Wittenmyer, Sarah L. Martell, Tomaž Zwitter, Lorenzo Spina, Geraint F. Lewis, Martin Asplund, Katharine J. Schlesinger, Thomas Kallinger, Purmortal Wang, Michael R. Hayden, Joel C. Zinn, Jeffrey D. Simpson, Janez Kos, Sven Buder, Jane Lin, Shourya Khanna, Valentina D'Orazi, Dennis Stello, Sanjib Sharma, Boquan Chen, Kenneth C. Freeman, Klemen Čotar
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Sharma, S, Hayden, M R, Bland-Hawthorn, J, Stello, D, Buder, S, Zinn, J C, Spina, L, Kallinger, T, Asplund, M, De Silva, G M, D'Orazi, V, Freeman, K C, Kos, J, Lewis, G F, Lin, J, Lind, K, Martell, S L, Schlesinger, K J, Simpson, J D, Zucker, D B, Zwitter, T, Chen, B, Cotar, K, Kafle, P R, Khanna, S, Tepper-Garcia, T, Wang, P & Wittenmyer, R A 2022, ' The GALAH Survey : Dependence of elemental abundances on age and metallicity for stars in the Galactic disc ', Monthly Notices of the Royal Astronomical Society, vol. 510, no. 1, pp. 734-752 . https://doi.org/10.1093/mnras/stab3341
Monthly Notices of the Royal Astronomical Society, 510(1), 734-752. Oxford University Press
Sharma, S, Hayden, M R, Bland-Hawthorn, J, Stello, D, Buder, S, Zinn, J C, Spina, L, Kallinger, T, Asplund, M, De Silva, G M, D'Orazi, V, Freeman, K C, Kos, J, Lewis, G F, Lin, J, Lind, K, Martell, S L, Schlesinger, K J, Simpson, J D, Zucker, D B, Zwitter, T, Chen, B, Cotar, K, Kafle, P R, Khanna, S, Tepper-Garcia, T, Wang, P & Wittenmyer, R A 2022, ' The GALAH Survey : Dependence of elemental abundances on age and metallicity for stars in the Galactic disc ', Monthly Notices of the Royal Astronomical Society, vol. 510, no. 1, pp. 734-752 . https://doi.org/10.1093/mnras/stab3341
Monthly Notices of the Royal Astronomical Society, 510(1), 734-752. Oxford University Press
Using data from the GALAH survey, we explore the dependence of elemental abundances on stellar age and metallicity among Galactic disc stars. We find that the abundance of most elements can be predicted from age and [Fe/H] with an intrinsic scatter o
Autor:
Yaguang Li, Timothy R Bedding, Dennis Stello, Daniel Huber, Marc Hon, Meridith Joyce, Tanda Li, Jean Perkins, Timothy R White, Joel C Zinn, Andrew W Howard, Howard Isaacson, Daniel R Hey, Hans Kjeldsen
Publikováno v:
Li, Y, Bedding, T R, Stello, D, Huber, D, Hon, M, Joyce, M, Li, T, Perkins, J, White, T R, Zinn, J C, Howard, A W, Isaacson, H, Hey, D R & Kjeldsen, H 2023, ' A prescription for the asteroseismic surface correction ', Monthly Notices of the Royal Astronomical Society, vol. 523, no. 1, pp. 916-927 . https://doi.org/10.1093/mnras/stad1445
In asteroseismology, the surface effect refers to a disparity between the observed and the modelled frequencies in stars with solar-like oscillations. It originates from improper modelling of the surface layers. Correcting the surface effect usually
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc3c235f856de8bd19b36f4c3c377490
http://arxiv.org/abs/2208.01176
http://arxiv.org/abs/2208.01176
Publikováno v:
Reyes, C, Stello, D, Hon, M & Zinn, J C 2022, ' Vetting asteroseismic Δν measurements using neural networks ', Monthly Notices of the Royal Astronomical Society, vol. 511, no. 4, pp. 5578-5596 . https://doi.org/10.1093/mnras/stac445
Precise asteroseismic parameters allow one to quickly estimate radius and mass distributions for large samples of stars. A number of automated methods are available to calculate the frequency of maximum acoustic power ($\nu_{\mathrm{max}}$) and the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49ad696320c38c8a1df1ba5426887b78
http://arxiv.org/abs/2202.05478
http://arxiv.org/abs/2202.05478
Autor:
Thomas Kallinger, Jack T. Warfield, Daniel Huber, Caitlin D. Jones, Sanjib Sharma, Marc Hon, Jennifer A. Johnson, L. Bugnet, Guy R. Davies, Joel C. Zinn, Dennis Stello, William J. Chaplin, Ralph Schönrich, Marc H. Pinsonneault, Benoit Mosser, Andrea Miglio, Yvonne Elsworth, Rafael A. García, Rodrigo Luger, Victor Silva Aguirre, Savita Mathur
Publikováno v:
Zinn, J C, Stello, D, Elsworth, Y, García, R A, Kallinger, T, Mathur, S, Mosser, B, Bugnet, L, Jones, C, Hon, M, Sharma, S, Schönrich, R, Warfield, J T, Luger, R, Pinsonneault, M H, Johnson, J A, Huber, D, Silva Aguirre, V, Chaplin, W J, Davies, G R & Miglio, A 2020, ' The K2 Galactic Archaeology Program Data Release 2 : Asteroseismic Results from Campaigns 4, 6, and 7 ', The Astrophysical Journal Supplement Series, vol. 251, no. 2, 23, pp. 23 . https://doi.org/10.3847/1538-4365/abbee3
The Astrophysical journal. Supplement series
Astrophysical Journal Supplement
Astrophysical Journal Supplement, American Astronomical Society, 2020, 251 (2), pp.23. ⟨10.3847/1538-4365/abbee3⟩
The Astrophysical journal. Supplement series
Astrophysical Journal Supplement
Astrophysical Journal Supplement, American Astronomical Society, 2020, 251 (2), pp.23. ⟨10.3847/1538-4365/abbee3⟩
Studies of Galactic structure and evolution have benefitted enormously from Gaia kinematic information, though additional, intrinsic stellar parameters like age are required to best constrain Galactic models. Asteroseismology is the most precise meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37ff766f6e6fc81ae9e16d3c5fab0e87
https://pure.au.dk/portal/da/publications/the-k2-galactic-archaeology-program-data-release-2(f903091d-fcdd-4351-9340-a0ea275ea1a2).html
https://pure.au.dk/portal/da/publications/the-k2-galactic-archaeology-program-data-release-2(f903091d-fcdd-4351-9340-a0ea275ea1a2).html
Publikováno v:
Sharma, S, Stello, D, Zinn, J C, Reyes, C, Hon, M & Bland-Hawthorn, J 2022, ' The K2 Galactic Archaeology Program : Overview, target selection, and survey properties ', Monthly Notices of the Royal Astronomical Society, vol. 517, no. 2, pp. 1970-1987 . https://doi.org/10.1093/mnras/stac2031
K2 was a community-driven NASA mission where all targets were proposed through guest observer programs. Among those, the K2 Galactic Archaeology Program (K2GAP) was devoted to measuring asteroseismic signals from giant stars to inform studies of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf2479c34faddee254cb72ada719005d
http://arxiv.org/abs/2109.12173
http://arxiv.org/abs/2109.12173
Autor:
James Esdaile, Valentina D'Orazi, Sanjib Sharma, Tomaz Zwitter, Joel C. Zinn, Shourya Khanna, Jonathan Horner, Marc Hon, Thomas Nordlander, Kenneth C. Freeman, Janez Kos, Yuan-Sen Ting, Jane Lin, Geraint F. Lewis, Michael R. Hayden, Jeffrey D. Simpson, Sarah L. Martell, Boquan Chen, Gayandhi M. De Silva, David M. Nataf, Rosemary F. G. Wyse, Mohd Hafiz Mohd Saadon, Thomas Kallinger, Daniel Huber, Martin Asplund, Daniel B. Zucker, Klemen Čotar, Karin Lind, Dennis Stello, Gregor Traven, Sven Buder, Prajwal R. Kafle, Timothy R. Bedding, Robert A. Wittenmyer, Joss Bland-Hawthorn, Tanda Li, Duncan J. Wright
Publikováno v:
Sharma, S, Stello, D, Bland-Hawthorn, J, Hayden, M R, Zinn, J C, Kallinger, T, Hon, M, Asplund, M, Buder, S, de Silva, G M, D'Orazi, V, Freeman, K, Kos, J, Lewis, G F, Lin, J, Lind, K, Martell, S, Simpson, J D, Wittenmyer, R A, Zucker, D B, Zwitter, T, Bedding, T R, Chen, B, Cotar, K, Esdaile, J, Horner, J, Huber, D, Kafle, P R, Khanna, S, Li, T, Ting, Y S, Nataf, D M, Nordlander, T, Saadon, M H M, Traven, G, Wright, D & Wyse, R F G 2019, ' The K2-HERMES survey : Age and metallicity of the thick disc ', Monthly Notices of the Royal Astronomical Society, vol. 490, no. 4, pp. 5335-5352 . https://doi.org/10.1093/mnras/stz2861
Asteroseismology is a promising tool to study Galactic structure and evolution because it can probe the ages of stars. Earlier attempts comparing seismic data from the {\it Kepler} satellite with predictions from Galaxy models found that the models p
Autor:
Trevor J. David, Ruth Angus, Jason L. Curtis, Jennifer L. van Saders, Isabel L. Colman, Gabriella Contardo, Yuxi Lu, Joel C. Zinn
Publikováno v:
The Astrophysical Journal. 933:114
We combine stellar surface rotation periods determined from NASA's Kepler mission with spectroscopic temperatures to demonstrate the existence of pileups at the long-period and short-period edges of the temperature-period distribution for main-sequen