Zobrazeno 1 - 10
of 1 707
pro vyhledávání: '"Hayden Michael R"'
Autor:
Das, Pradosh Barun, Zucker, Daniel B., De Silva, Gayandhi M., Borsato, Nicholas W., Mura-Guzmán, Aldo, Buder, Sven, Ness, Melissa, Nordlander, Thomas, Casey, Andrew R., Martell, Sarah L., Bland-Hawthorn, Joss, de Grijs, Richard, Freeman, Ken C., Kos, Janez, Stello, Dennis, Lewis, Geraint F., Hayden, Michael R., Sharma, Sanjib
Analysing stellar parameters and abundances from nearly one million Gaia DR3 Radial Velocity Spectrometer (RVS) spectra poses challenges due to the limited spectral coverage (restricted to the infrared Ca II triplet) and variable signal-to-noise rati
Externí odkaz:
http://arxiv.org/abs/2410.12272
Autor:
Wang, Zixian, Hayden, Michael R., Sharma, Sanjib, van de Sande, Jesse, Bland-Hawthorn, Joss, Vaughan, Sam, Martig, Marie, Pinna, Francesca
Ongoing deep IFS observations of disk galaxies provide opportunities for comparison with the Milky Way (MW) to understand galaxy evolution. However, such comparisons are marred by many challenges such as selection effects, differences in observations
Externí odkaz:
http://arxiv.org/abs/2310.18258
Autor:
Vogrinčič, Rok, Kos, Janez, Zwitter, Tomaž, Traven, Gregor, Beeson, Kevin L., Čotar, Klemen, Munari, Ulisse, Buder, Sven, Martell, Sarah L., Lewis, Geraint F., De Silva, Gayandhi M, Hayden, Michael R., Bland-Hawthorn, Joss, D'Orazi, Valentina
We use more than 872,000 mid-to-high resolution (R $\sim$ 20,000) spectra of stars from the GALAH survey to discern the spectra of diffuse interstellar bands (DIBs). We use four windows with the wavelength range from 4718 to 4903, 5649 to 5873, 6481
Externí odkaz:
http://arxiv.org/abs/2303.14016
Autor:
Chen, Boquan, Hayden, Michael R., Sharma, Sanjib, Bland-Hawthorn, Joss, Kobayashi, Chiaki, Karakas, Amanda I.
We present a multi-zone galactic chemical evolution (GCE) model for the Milky Way that takes the most recently updated yields of major nucleosynthesis channels into account. It incorporates physical processes commonly found in previous GCE models lik
Externí odkaz:
http://arxiv.org/abs/2204.11413
Autor:
Li, Yaguang, Bedding, Timothy R., Murphy, Simon J., Stello, Dennis, Chen, Yifan, Huber, Daniel, Joyce, Meridith, Marks, Dion, Zhang, Xianfei, Bi, Shaolan, Colman, Isabel L., Hayden, Michael R., Hey, Daniel R., Li, Gang, Montet, Benjamin T., Sharma, Sanjib, Wu, Yaqian
A star expands to become a red giant when it has fused all the hydrogen in its core into helium. If the star is in a binary system, its envelope can overflow onto its companion or be ejected into space, leaving a hot core and potentially forming a su
Externí odkaz:
http://arxiv.org/abs/2204.06203
Autor:
Hughes, Arvind C. N., Spitler, Lee R., Zucker, Daniel B., Nordlander, Thomas, Simpson, Jeffrey, Da Costa, Gary S., Ting, Yuan-Sen, Li, Chengyuan, Bland-Hawthorn, Joss, Buder, Sven, Casey, Andrew R., De Silva, Gayandhi M., D'Orazi, Valentina, Freeman, Ken C., Hayden, Michael R., Kos, Janez, Lewis, Geraint F., Lin, Jane, Lind, Karin, Martell, Sarah L., Schlesinger, Katharine J., Sharma, Sanjib, Zwitter, Tomaz, Collaboration, The GALAH
Extremely Metal-Poor (EMP) stars provide a valuable probe of early chemical enrichment in the Milky Way. Here we leverage a large sample of $\sim600,000$ high-resolution stellar spectra from the GALAH survey plus a machine learning algorithm to find
Externí odkaz:
http://arxiv.org/abs/2203.10843
Autor:
Dawson, Jessica, Kay, Chris, Black, Hailey Findlay, Bortnick, Stephanie, Javier, Kyla, Xia, Qingwen, Sandhu, Akshdeep, Buchanan, Christina, Hogg, Virginia, Chang, Florence C.F., Goto, Jun, Arning, Larissa, Saft, Carsten, Bijlsma, Emilia K., Nguyen, Huu P., Roxburgh, Richard, Hayden, Michael R.
Publikováno v:
In Genetics in Medicine November 2024 26(11)
Autor:
Clark, Jake T., Wright, Duncan J., Wittenmyer, Robert A., Horner, Jonathan, Hinkel, Natalie R., Clerté, Mathieu, Carter, Brad D., Buder, Sven, Hayden, Michael R., Bland-Hawthorn, Joss, Casey, Andrew R., De Silva, Gayandhi M., D'Orazi, Valentina, Freeman, Ken C., Kos, Janez, Lewis, Geraint F., Lin, Jane, Lind, Karin, Martell, Sarah L., Schlesinger, Katharine J., Sharma, Sanjib, Simpson, Jeffrey D., Stello, Dennis, Zucker, Daniel B., Zwitter, Tomaž, Munari, Ulisse, Nordlander, Thomas
Pioneering photometric, astrometric, and spectroscopic surveys are helping exoplanetary scientists better constrain the fundamental properties of stars within our galaxy, and the planets these stars host. In this study, we use the third data release
Externí odkaz:
http://arxiv.org/abs/2111.14883
Autor:
Wang, Zixian, Hayden, Michael R., Sharma, Sanjib, Xiang, Maosheng, Ting, Yuan-Sen, Bland-Hawthorn, Joss, Chen, Boquan
We present a novel approach to deriving stellar labels for stars observed in MUSE fields making use of data-driven machine learning methods. Taking advantage of the comparable spectral properties (resolution, wavelength coverage) of the LAMOST and MU
Externí odkaz:
http://arxiv.org/abs/2109.09327
Autor:
Buder, Sven, Lind, Karin, Ness, Melissa K., Feuillet, Diane K., Horta, Danny, Monty, Stephanie, Buck, Tobias, Nordlander, Thomas, Bland-Hawthorn, Joss, Casey, Andrew R., De Silva, Gayandhi M., D'Orazi, Valentina, Freeman, Ken C., Hayden, Michael R., Kos, Janez, Martell, Sarah L., Lewis, Geraint F., Lin, Jane, Schlesinger, Katharine. J., Sharma, Sanjib, Simpson, Jeffrey D., Stello, Dennis, Zucker, Daniel B., Zwitter, Tomaz, Ciuca, Ioana, Horner, Jonathan, Kobayashi, Chiaki, Ting, Yuan-Sen, Wyse, Rosemary F. G., Collaboration, The GALAH
Publikováno v:
MNRAS, 510, 2407 (2022)
Since the advent of $Gaia$ astrometry, it is possible to identify massive accreted systems within the Galaxy through their unique dynamical signatures. One such system, $Gaia$-Sausage-Enceladus (GSE), appears to be an early "building block" given its
Externí odkaz:
http://arxiv.org/abs/2109.04059