Zobrazeno 1 - 10
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pro vyhledávání: '"Reese Daniel R."'
Understanding the effects of rotation in stellar evolution is key to modelling early-type stars, half of which have equatorial velocities over 100 km/s. The nearby star Altair is an example of such fast-rotating stars, and furthermore, it has the pri
Externí odkaz:
http://arxiv.org/abs/2406.09220
*Context*. In the framework of the PLATO mission, to be launched in late 2026, seismic inversion techniques will play a key role in the mission precision requirements of the stellar mass, radius, and age. It is therefore relevant to discuss the chall
Externí odkaz:
http://arxiv.org/abs/2310.19649
Autor:
Bétrisey, Jérôme, Buldgen, Gaël, Reese, Daniel R., Farnir, Martin, Dupret, Marc-Antoine, Khan, Saniya, Goupil, Marie-Jo, Eggenberger, Patrick, Meynet, Georges
Publikováno v:
A&A 676, A10 (2023)
Asteroseismic modelling will be part of the pipeline of the PLATO mission and will play a key role in the mission precision requirements on stellar mass, radius and age. It is therefore crucial to compare how current modelling strategies perform, and
Externí odkaz:
http://arxiv.org/abs/2306.04509
Autor:
Houdayer, Pierre S., Reese, Daniel R.
Publikováno v:
A&A 675, A181 (2023)
We present RUBIS (Rotation code Using Barotropy conservation over Isopotential Surfaces), a fully Python-based centrifugal deformation program available at \url{https://github.com/pierrehoudayer/RUBIS}. The code has been designed to calculate the cen
Externí odkaz:
http://arxiv.org/abs/2303.08077
The advent of space-based photometry missions in the early 21st century enabled the application to asteroseismic data of advanced inference techniques until then restricted to the field of helioseismology. The high quality of the observations, the di
Externí odkaz:
http://arxiv.org/abs/2206.11507
Autor:
Antonio García Hernández, Monteiro Mário J.P.F.G., Guo Zhao, Reese Daniel R., Suárez Juan Carlos, Martín Susana, Pascual-Granado Javier, Moya Andrés, Garrido Rafael
Publikováno v:
EPJ Web of Conferences, Vol 160, p 03003 (2017)
In this work, we present a new method to determine the surface gravity of δ Sct stars. We used a refined Δv−ρ¯ relation and the stellar parallaxes or luminosities to determine their masses and radii. A comparison with the data obtained from the
Externí odkaz:
https://doaj.org/article/f6de4fb40af449359ab700c76172aa85
Publikováno v:
A&A 663, A60 (2022)
In the present paper, we aim to constrain the properties of the ionisation region in a star from the oscillation frequency variation (a so-called glitch) caused by rapid structural variations in this very region. In particular, we seek to avoid the u
Externí odkaz:
http://arxiv.org/abs/2202.04638
Publikováno v:
A&A 655, A85 (2021)
Determining the properties of solar-like oscillating stars can be subject to many biases. A particularly important example is the helium-mass degeneracy, where the uncertainties regarding the internal physics can cause a poor determination of both th
Externí odkaz:
http://arxiv.org/abs/2110.00246
Autor:
Reese Daniel R.
Publikováno v:
EPJ Web of Conferences, Vol 101, p 05007 (2015)
Massive and intermediate mass stars play a crucial role in astrophysics. Indeed, massive stars are the main producers of heavy elements, explode in supernovae at the end of their short lifetimes, and may be the progenitors of gamma ray bursts. Interm
Externí odkaz:
https://doaj.org/article/3d5199bca69f424c9998193da0b3140d
Autor:
Bedding, Timothy R., Murphy, Simon J., Hey, Daniel R., Huber, Daniel, Li, Tanda, Smalley, Barry, Stello, Dennis, White, Timothy R., Ball, Warrick H., Chaplin, William J., Colman, Isabel L., Fuller, Jim, Gaidos, Eric, Harbeck, Daniel R., Hermes, J. J., Holdsworth, Daniel L., Li, Gang, Li, Yaguang, Mann, Andrew W., Reese, Daniel R., Sekaran, Sanjay, Yu, Jie, Antoci, Victoria, Bergmann, Christoph, Brown, Timothy M., Howard, Andrew W., Ireland, Michael J., Isaacson, Howard, Jenkins, Jon M., Kjeldsen, Hans, McCully, Curtis, Rabus, Markus, Rains, Adam D., Ricker, George R., Tinney, Christopher G., Vanderspek, Roland K.
Asteroseismology is a powerful tool for probing the internal structures of stars by using their natural pulsation frequencies. It relies on identifying sequences of pulsation modes that can be compared with theoretical models, which has been done suc
Externí odkaz:
http://arxiv.org/abs/2005.06157