Zobrazeno 1 - 10
of 472
pro vyhledávání: '"Curé, M."'
Autor:
Rubio, A. C., Carciofi, A. C., Ticiani, P., Mota, B. C., Vieira, R. G., Faes, D. M., Genaro, M., de Amorim, T. H., Klement, R., Araya, I., Arcos, C., Curé, M., de Souza, A. Domiciano, Georgy, C., Jones, C. E., Suffak, M. W., Silva, A. C. F.
Classical Be stars are fast rotating, near main sequence B-type stars. The rotation and the presence of circumstellar discs profoundly modify the observables of active Be stars. Our goal is to infer stellar and disc parameters, as well as distance an
Externí odkaz:
http://arxiv.org/abs/2309.06168
V4142 Sgr: a Double Periodic Variable with an accretor surrounded by the accretion-disk's atmosphere
Autor:
Rosales, J. A., Mennickent, R. E., Djurašević, G., Araya, I., Curé, M., Schleicher, D. R. G., Petrović, J.
Publikováno v:
Astronomy & Astrophysics,670,2023,A94
Context: A detailed study of the close interacting binary V4142\,Sgr based on photometric and spectroscopic analysis is presented.This system belongs to the enigmatic class of Algol-like variables showing a long photometric cycle of unknown nature. A
Externí odkaz:
http://arxiv.org/abs/2302.10962
Publikováno v:
A&A 665, A133 (2022)
Here we present evolutionary models for a set of massive stars, introducing a new prescription for the mass-loss rate obtained from hydrodynamical calculations in which the wind velocity profile, $v(r)$, and the line-acceleration, $g_\text{line}$, ar
Externí odkaz:
http://arxiv.org/abs/2207.04786
Autor:
Hadjara, M., Petrov, R. G., Jankov, S., Cruzalèbes, P., Boskri, A., Spang, A., Lagarde, S., He, J., Chen, X., Nitschelm, C., de Almeida, E. S. G., Pereira, G., Michael, E. A., Gao, Q., Wang, W., Reyes, I., Arcos, C., Araya, I., Curé, M.
Publikováno v:
MNRAS 511, 4724-4740 (2022)
Differential Interferometry allows to obtain the differential visibility and phase, in addition to the spectrum. The differential phase contains important information about the structure and motion of stellar photosphere such as stellar spots and non
Externí odkaz:
http://arxiv.org/abs/2203.10372
Autor:
Rosales, J. A., Mennickent, R. E., Djurašević, G., González, J. F., Araya, I., Cabezas, M., Schleicher, D. R. G., Curé, M.
Publikováno v:
The Astronomical Journal, 161, 2012, 165
We present a detailed photometric and spectroscopic analysis of DD CMa, based on published survey photometry and new spectroscopic data. We find an improved orbital period of $P_\mathrm{o}= 2.0084530 \pm 0.0000006 ~\mathrm{d}$. Our spectra reveal H$\
Externí odkaz:
http://arxiv.org/abs/2109.00234
Autor:
Rosales, J. A., Mennickent, R. E., Djurašević, G., Schleicher, D. R. G., Zharikov, S., Araya, I., Celedón, L., Curé, M.
Publikováno v:
The Astronomical Journal, 162, 2021, 66
We present a photometric and spectroscopic study of HD 50526, an ellipsoidal binary member of the group Double Periodic Variable stars. Performing data-mining in photometric surveys and conducting new spectroscopic observations with several spectrogr
Externí odkaz:
http://arxiv.org/abs/2109.00231
Autor:
Araya, I., Christen, A., Curé, M., Cidale, L. S., Venero, R. O. J., Arcos, C., Gormaz-Matamala, A. C., Haucke, M., Escárate, P., Clavería, H.
Accurate mass-loss rates and terminal velocities from massive stars winds are essential to obtain synthetic spectra from radiative transfer calculations and to determine the evolutionary path of massive stars. From a theoretical point of view, analyt
Externí odkaz:
http://arxiv.org/abs/2104.03263
Autor:
Klement, Robert, Carciofi, A. C., Rivinius, T., Ignace, R., Matthews, L. D., Torstensson, K., Gies, D., Vieira, R. G., Richardson, N. D., de Souza, A. Domiciano, Bjorkman, J. E., Hallinan, G., Faes, D. M., Mota, B., Gullingsrud, A. D., de Breuck, C., Kervella, P., Curé, M., Gunawan, D.
Publikováno v:
2019ApJ...885..147K
Rapid rotation is a fundamental characteristic of classical Be stars and a crucial property allowing for the formation of their circumstellar disks. Past evolution in a mass and angular momentum transferring binary system offers a plausible solution
Externí odkaz:
http://arxiv.org/abs/1909.12413
Publikováno v:
Astronomy & Astrophysics, 06/2018, Volume 614, id.A91, 28 pp
Variable B supergiants (BSGs) constitute a heterogeneous group of stars with complex photometric and spectroscopic behaviours. They exhibit mass-loss variations and experience different types of oscillation modes, and there is growing evidence that v
Externí odkaz:
http://arxiv.org/abs/1902.01341
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