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Observation of polarization singularities and topological textures in sound waves

Autor: Muelas-Hurtado, R. D., Volke-Sepulveda, K., Ealo, J. L., Nori, F., Alonso, M. A., Bliokh, K. Y., Brasselet, E.

Polarization singularities and topological polarization structures are generic features of inhomogeneous vector wave fields of any nature. However, their experimental studies mostly remain restricted to optical waves. Here we report observation of po

Externí odkaz: http://arxiv.org/abs/2210.03976

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Towards a consistent model of the hot quadruple system HD 93206 = QZ Carin\ae: II. N-body model

Autor: Brož, M., Harmanec, P., Zasche, P., Catalan-Hurtado, R., Barlow, B. N., Frondorf, W., Wolf, M., Drechsel, H., Chini, R., Nasseri, A., Labadie-Bartz, J., Christie, G. W., Walker, W. S. G., Blackford, M., Blane, D., Henden, A. A., Bohlsen, T., Božić, H., Jonák, J.

Publikováno v: A&A 666, A24 (2022)

HD 93206 is early-type massive stellar system, composed of components resolved by direct imaging (Ab, Ad, B, C, D) as well as a compact sub-system (Aa1, Aa2, Ac1, Ac2). Its geometry was already determined on the basis of extensive photometric, spectr

Externí odkaz: http://arxiv.org/abs/2206.12160

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Towards a consistent model of the hot quadruple system HD 93206 = QZ Carinae - I. Observations and their initial analyses

Publikováno v: A&A 666, A23 (2022)

The hot nine-component system HD 93206, which contains a gravitationally bounded eclipsing Ac1+Ac2 binary ($P=5.9987$~d) and a spectroscopic Aa1+Aa2 ($P=20.734$~d) binary can provide~important insights into the origin and evolution of massive stars.

Externí odkaz: http://arxiv.org/abs/2204.07045

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