Zobrazeno 1 - 10
of 830
pro vyhledávání: '"Samadi, R."'
Autor:
Jannsen, N., De Ridder, J., Seynaeve, D., Regibo, S., Huygen, R., Royer, P., Paproth, C., Grießbach, D., Samadi, R., Reese, D. R., Pertenais, M., Grolleau, E., Heller, R., Niemi, S. M., Cabrera, J., Börner, A., Aigrain, S., McCormac, J., Verhoeve, P., Astier, P., Kutrowski, N., Vandenbussche, B., Tkachenko, A., Aerts, C.
Publikováno v:
A&A 681, A18 (2024)
PLAnetary Transits and Oscillations of stars (PLATO) is the ESA M3 space mission dedicated to detect and characterise transiting exoplanets including information from the asteroseismic properties of their stellar hosts. The uninterrupted and high-pre
Externí odkaz:
http://arxiv.org/abs/2310.06985
Autor:
Deal, M., Goupil, M. -J., Cunha, M. S., Monteiro, M. J. P. F. G., Lebreton, Y., Christophe, S., Pereira, F., Samadi, R., Oreshina, A. V., Buldgen, G.
Publikováno v:
A&A 673, A49 (2023)
The transition between convective and radiative stellar regions is still not fully understood. The sharp variations in sound speed located in these transition regions give rise to a signature in specific seismic indicators, opening the possibility to
Externí odkaz:
http://arxiv.org/abs/2303.14026
Publikováno v:
A&A 646, L5 (2021)
The use of the full potential of stellar seismology is made difficult by the improper modeling of the upper-most layers of solar-like stars and their influence on the modeled frequencies. Our knowledge on these \emph{surface effects} has improved tha
Externí odkaz:
http://arxiv.org/abs/2101.06065
Publikováno v:
A&A 644, A171 (2020)
The development of space-borne missions has significantly improved the quality of the measured spectra of solar-like oscillators. Their $p$-mode line profiles can now be resolved, and the asymmetries inferred for a variety of stars other than the Sun
Externí odkaz:
http://arxiv.org/abs/2011.02439
Autor:
Castro, M., Baudin, F., Benomar, O., Samadi, R., Morel, T., Barban, C., Nascimento Jr., J. D. do, Lebreton, Y., Boumier, P., Marques, J. P., da Costa, J. S.
Solar analogues are important stars to study for understanding the properties of the Sun. Evolutionary modeling, combined with seismic and spectroscopic analysis, becomes a powerful method to characterize stellar intrinsic parameters, such as mass, r
Externí odkaz:
http://arxiv.org/abs/2008.01163
Publikováno v:
A&A 635, A81 (2020)
In this paper, we aim to develop a predictive model for solar radial $p$-mode line profiles in the velocity spectrum. Unlike the approach favoured by prior studies, this model is not described by free parameters and we do not use fitting procedures t
Externí odkaz:
http://arxiv.org/abs/2001.10271
In-flight photometry extraction of PLATO targets: Optimal apertures for detecting extrasolar planets
Autor:
Marchiori, V., Samadi, R., Fialho, F., Paproth, C., Santerne, A., Pertenais, M., Börner, A., Cabrera, J., Monsky, A., Kutrowski, N.
Publikováno v:
A&A 627, A71 (2019)
The ESA PLATO space mission is devoted to unveiling and characterizing new extrasolar planets and their host stars. This mission will encompass a very large field of view, granting it the potential to survey up to one million stars depending on the f
Externí odkaz:
http://arxiv.org/abs/1906.00892
Publikováno v:
A&A 625, A20 (2019)
Space-borne missions CoRoT and Kepler have provided a rich harvest of high-quality photometric data for solar-like pulsators. It is now possible to measure damping rates for hundreds of main-sequence and thousands of red-giant. However, among the sei
Externí odkaz:
http://arxiv.org/abs/1903.05479
Autor:
Samadi, R., Deru, A., Reese, D., Marchiori, V., Grolleau, E., Green, J. J., Pertenais, M., Lebreton, Y., Deheuvels, S., Mosser, B., Belkacem, K., Borner, A., Smith, A. M. S.
Publikováno v:
A&A 624, A117 (2019)
The preparation of science objectives of the ESA's PLATO space mission will require the implementation of hare-and-hound exercises relying on the massive generation of representative simulated light-curves. We developed a light-curve simulator named
Externí odkaz:
http://arxiv.org/abs/1903.02747
Publikováno v:
A&A 622, A76 (2019)
Asteroseismology is a unique tool that can be used to study the interior of stars and hence deliver unique information for the studiy of stellar physics, stellar evolution, and Galactic archaeology. We aim to develop a simple model of the information
Externí odkaz:
http://arxiv.org/abs/1812.11906