Zobrazeno 1 - 10
of 1 698
pro vyhledávání: '"Wit, S"'
Autor:
Munoz-Sanchez, G., de Wit, S., Bonanos, A. Z., Antoniadis, K., Boutsia, K., Boumis, P., Christodoulou, E., Kalitsounaki, M., Udalski, A.
This study delves into [W60] B90, one of the most luminous and extreme Red Supergiants (RSGs) in the Large Magellanic Cloud (LMC), aiming to search for evidence of episodic mass loss. Our discovery of a bar-like nebular structure at 1 pc, reminiscent
Externí odkaz:
http://arxiv.org/abs/2405.11019
Autor:
de Wit, S., Bonanos, A. Z., Antoniadis, K., Zapartas, E., Ruiz, A., Britavskiy, N., Christodoulou, E., De, K., Maravelias, G., Munoz-Sanchez, G., Tsopela, A.
Mass loss during the red supergiant (RSG) phase plays a crucial role in the evolution of an intermediate massive star, however, the underlying mechanism remains unknown. We aim to increase the sample of well-characterized RSGs at subsolar metallicity
Externí odkaz:
http://arxiv.org/abs/2402.12442
Publikováno v:
A&A 686, A88 (2024)
The high mass-loss rates of red supergiants (RSGs) drastically affect their evolution and final fate, but their mass-loss mechanism remains poorly understood. Various empirical prescriptions scaled with luminosity have been derived in the literature,
Externí odkaz:
http://arxiv.org/abs/2401.15163
Autor:
Bonanos, A. Z., Tramper, F., de Wit, S., Christodoulou, E., Munoz-Sanchez, G., Antoniadis, K., Athanasiou, S., Maravelias, G., Yang, M., Zapartas, E.
Publikováno v:
A&A 686, A77 (2024)
The ASSESS project aims to determine the role of episodic mass-loss in the evolution of massive stars. As a first step, we construct a catalog of spectroscopically identified dusty, evolved massive stars in ten southern galaxies for which Spitzer poi
Externí odkaz:
http://arxiv.org/abs/2312.04626
Autor:
Bonanos, A. Z., Maravelias, G., Yang, M., Tramper, F., de Wit, S., Zapartas, E., Antoniadis, K., Christodoulou, E., Munoz-Sanchez, G.
Episodic mass loss is not understood theoretically, neither accounted for in state-of-the-art models of stellar evolution, which has far-reaching consequences for many areas of astronomy. We introduce the ERC-funded ASSESS project (2018-2024), which
Externí odkaz:
http://arxiv.org/abs/2308.04891
Autor:
de Wit, S., Bonanos, A. Z., Tramper, F., Yang, M., Maravelias, G., Boutsia, K., Britavskiy, N., Zapartas, E.
Publikováno v:
A&A 669, A86 (2023)
There is evidence that some red supergiants (RSGs) experience short lived phases of extreme mass loss, producing copious amounts of dust. These episodic outburst phases help to strip the hydrogen envelope of evolved massive stars, drastically affecti
Externí odkaz:
http://arxiv.org/abs/2209.11239
Autor:
Cattell, C., Breneman, A., Dombeck, J., Short, B., Wygant, J., Halekas, J., Case, Tony, Kasper, J., Larson, D., Stevens, Mike, Whittesley, P., de Wit, S. Bale T. Dudok, Goodrich, K., MacDowall, R., Moncuquet, M., Malaspina, D., Pulupa, M.
Publikováno v:
ApJL 911 L29 2021
Observations of plasma waves by the Fields Suite and of electrons by the Solar Wind Electrons Alphas and Protons Investigation (SWEAP) on Parker Solar Probe provide strong evidence for pitch angle scattering of strahl-energy electrons by narrowband w
Externí odkaz:
http://arxiv.org/abs/2101.05098
Autor:
Mahy, L., Sana, H., Abdul-Masih, M., Almeida, L. A., Langer, N., Shenar, T., de Koter, A., de Mink, S. E., de Wit, S., Grin, N. J., Evans, C. J., Moffat, A. F. J., Schneider, F. R. N., Barbá, R., Clark, J. S., Crowther, P., Gräfener, G., Lennon, D. J., Tramper, F., Vink, J. S.
Accurate stellar parameters of individual objects in binary systems are essential to constrain the effects of binarity on stellar evolution. These parameters serve as a prerequisite to probing existing and future theoretical evolutionary models. We a
Externí odkaz:
http://arxiv.org/abs/1912.08107
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