Zobrazeno 1 - 10
of 63
pro vyhledávání: '"M. De Silva"'
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:
Daniel B. Zucker, Michael R. Hayden, Karin Lind, Thor Tepper-García, Thomas Nordlander, Kenneth C. Freeman, Geraint F. Lewis, Tomaž Zwitter, Katharine J. Schlesinger, Gayandhi M. De Silva, Dennis Stello, Jeffrey D. Simpson, Joss Bland-Hawthorn, Andrew R. Casey, Janez Kos, Sarah L. Martell, Gary S. Da Costa, Sanjib Sharma, Yuan-Sen Ting, Klemen Čotar, Rosemary F. G. Wyse, Sven Buder, Jonathan Horner, Martin Asplund, Valentina D'Orazi
Publikováno v:
Monthly Notices of the Royal Astronomical Society
The ESA Gaia astrometric mission has enabled the remarkable discovery that a large fraction of the stars near the Solar neighbourhood appear to be debris from a single in-falling system, the so-called Gaia-Enceladus-Sausage (GSE). One exciting featur
Autor:
Yuan-Sen Ting, A. Frigo, Sanjib Sharma, U. Munari, N. Masetti, P. Valisa, Daniel B. Zucker, Jeffrey D. Simpson, Robert A. Wittenmyer, G. L. Righetti, Sarah L. Martell, F. J. Hambsch, Gregor Traven, Geraint F. Lewis, Kenneth C. Freeman, G. M. De Silva, Klemen Čotar
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 505:6121-6154
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
Autor:
Tenglin Li, Zhen Wan, Daniel B. Zucker, Sarah L. Martell, Dougal Mackey, Jeffrey D. Simpson, Nora Shipp, Joss Bland-Hawthorn, Kyler Kuehn, Thomas Nordlander, Mei-Yu Wang, Geraint F. Lewis, Gayandhi M. De Silva, Vasily Belokurov, Gary S. Da Costa, Andrew B. Pace, Sergey E. Koposov, Denis Erkal, Alexander P. Ji, Douglas Boubert
Publikováno v:
2020, ' Discovery of a nearby 1700 km s-1 star ejected from the Milky Way by Sgr A* ', Monthly Notices of the Royal Astronomical Society, vol. 491, no. 2, pp. 2465-2480 . https://doi.org/10.1093/mnras/stz3081
We present the serendipitous discovery of the fastest main-sequence hyper-velocity star (HVS) by the Southern Stellar Stream Spectroscopic Survey (S5). The star S5-HVS1 is a ∼2.35 M⊙ A-type star located at a distance of ∼9 kpc from the Sun and
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:
Prajwal R. Kafle, Sanjib Sharma, Joss Bland-Hawthorn, Geraint F. Lewis, Yuan-Sen Ting, Gary S. Da Costa, Jeffrey D. Simpson, Katharine J. Schlesinger, Jonathan Horner, Daniel B. Zucker, David M. Nataf, Thomas Nordlander, Kenneth C. Freeman, Sarah L. Martell, Ly Duong, Martin Asplund, Gayandhi M. De Silva, Jane Lin, Andrew R. Casey, Melissa Ness, Janez Kos, Tomaž Zwitter, Klemen Čotar, Sven Buder, Karin Lind, P. L. Cottrell, Valentina D'Orazi
Publikováno v:
Monthly Notices of the Royal Astronomical Society
We present a study using the second data release of the GALAH survey of stellar parameters and elemental abundances of 15 pairs of stars identified by Oh et al 2017. They identified these pairs as potentially co-moving pairs using proper motions and
Autor:
Jonti Horner, Jefferey D. Simpson, Geraint F. Lewis, Sven Buder, Yuan-Sen Ting, Daniel B. Zucker, Gayandhi M. De Silva, Lorenzo Spina, Karin Lind, Thomas Nordlander, Kenneth C. Freeman, Martin Asplund, Gregor Traven, Janez Kos, Michael R. Hayden, Joss Bland-Hawthorn, Sarah L. Martell, Klemen Čotar, Sanjib Sharma, Kevin L. Beeson, Tomaž Zwitter
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Due to its proximity, the Orion star forming region is often used as a proxy to study processes related to star formation and to observe young stars in the environment they were born in. With the release of Gaia DR2, the distance measurements to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c75a020f512da416cc4b7ecad9c7a15
https://hdl.handle.net/11577/3466899
https://hdl.handle.net/11577/3466899
Autor:
G. M. De Silva, Gražina Tautvaišienė, Angela Bragaglia, Anais Gonneau, G. Casali, A. Hourihane, Simone Zaggia, G. G. Sacco, Luca Sbordone, Amelia Bayo, Paula Jofre, Donatella Romano, C. Melo, Maria Lugaro, Sofia Randich, Silvano Desidera, Katia Biazzo, E. Franciosini, Valentina D'Orazi, Clare Worley, Laura Magrini, Lorenzo Spina, R. G. Gratton, Gerard Gilmore, F. M. Jiménez-Esteban, V. A. Sheminova, M. Van der Swaelmen, Rodolfo Smiljanic, Lorenzo Monaco, Marco Pignatari, L. Morbidelli, Antonio Frasca, Thomas Bensby, G. Carraro, M. Baratella
Publikováno v:
Astronomy & Astrophysics
Young open clusters (t
26 pages, 14 figures, accepted for publication in A&A
26 pages, 14 figures, accepted for publication in A&A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a516840fc152574de39f6c0d4f20b02d
https://www.repository.cam.ac.uk/handle/1810/331973
https://www.repository.cam.ac.uk/handle/1810/331973
The GALAH survey: Effective temperature calibration from the InfraRed Flux Method in the Gaia system
Autor:
Sven Buder, Yuan-Sen Ting, Robert A. Wittenmyer, Joss Bland-Hawthorn, Thomas Nordlander, Kenneth C. Freeman, Martin Asplund, Sarah L. Martell, Janez Kos, Sanjib Sharma, Katharine J. Schlesinger, Jeffrey D. Simpson, Andrew R. Casey, Jonathan Horner, Dennis Stello, Gayandhi M. De Silva, Valentina D'Orazi, Jane Lin, Adam D. Rains, Geraint F. Lewis, Luca Casagrande, Daniel B. Zucker, F. Liu, Tomaž Zwitter, Karin Lind, Michael R. Hayden
Publikováno v:
Monthly Notices of the Royal Astronomical Society
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::392202c87dec8f3005fbf6d9bc412d3f
http://hdl.handle.net/20.500.12386/32137
http://hdl.handle.net/20.500.12386/32137
Autor:
Sanjib Sharma, Kevin L. Beeson, Jeffrey D. Simpson, Yuan-Sen Ting, Robert A. Wittenmyer, Geraint F. Lewis, Gayandhi M. De Silva, Katharine J. Schlesinger, Tomaž Zwitter, Fred Watson, Janez Kos, Sarah L. Martell, Sven Buder, Rok Vogrinčič, Jane Lin, Daniel B. Zucker, Joss Bland-Hawthorn, Dennis Stello, Gregor Traven, Valentina D'Orazi, Andrew R. Casey, Richard de Grijs, Klemen Čotar, Thomas Nordlander, Kenneth C. Freeman, Michael R. Hayden, Karin Lind, Martin Asplund
Publikováno v:
Zwitter, T, Kos, J, Buder, S, Crossed Cotar, K, Asplund, M, Bland-Hawthorn, J, Casey, A R, De Silva, G M, D'orazi, V, Freeman, K C, Hayden, M R, Lewis, G F, Lin, J, Lind, K, Martell, S L, Schlesinger, K J, Sharma, S, Simpson, J D, Stello, D, Zucker, D B, Beeson, K L, De Grijs, R, Nordlander, T, Ting, Y S, Traven, G, Vogrinčič, R, Watson, F & Wittenmyer, R 2021, ' The GALAH+ survey : a new library of observed stellar spectra improves radial velocities and hints at motions within M67 ', Monthly Notices of the Royal Astronomical Society, vol. 508, no. 3, pp. 4202-4215 . https://doi.org/10.1093/mnras/stab2673
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society
GALAH+ is a magnitude-limited survey of high resolution stellar spectra obtained by the HERMES spectrograph at the Australian Astronomical Observatory. Its third data release provides reduced spectra with new derivations of stellar parameters and abu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cff8f18abd807756da8a341be1ebc07
http://arxiv.org/abs/2012.12201
http://arxiv.org/abs/2012.12201