Zobrazeno 1 - 10
of 1 239
pro vyhledávání: '"Winckel, P"'
Autor:
De Prins, Toon, Van Winckel, Hans, Ferreira, Jonathan, Verhamme, Olivier, Kamath, Devika, Zimniak, Nathan, Jacquemin-Ide, Jonathan
Publikováno v:
A&A 689, A151 (2024)
Aims: We consider cold self-similar magnetohydrodynamic (MHD) disc wind solutions to describe jets that are launched from the circumcompanion accretion discs in post-AGB binaries. Resulting predictions are matched to observations for five different p
Externí odkaz:
http://arxiv.org/abs/2406.09280
Autor:
Bekaert, Hans, Van Dooren, Wim, Van Winckel, Hans, Poessel, Markus, Thiering, Inge, Nicolini, Marco, Artioli, Enrico, Avgerinou, Despina, Balla, Eleana, De Cock, Mieke
In the context of the European Erasmus+ project Teaching ASTronomy at the Educational level (TASTE), we investigated the extent to which a learning module at school and a set of activities during a planetarium visit help students to gain insight in t
Externí odkaz:
http://arxiv.org/abs/2405.19741
Publikováno v:
A&A, 682, A143 (2024)
The well studied carbon star V Hydrae is known to exhibit a complex asymmetric environment made of a dense equatorial wind and high-velocity outflows, hinting at its transition from the AGB phase to the asymmetric planetary nebula phase. In addition,
Externí odkaz:
http://arxiv.org/abs/2405.07820
Autor:
Anderson, Richard I., Viviani, Giordano, Shetye, Shreeya S., Mowlavi, Nami, Eyer, Laurent, Palaversa, Lovro, Holl, Berry, Blanco-Cuaresma, Sergi, Kravchenko, Kateryna, Pawlak, Michał, Reyes, Mauricio Cruz, Khan, Saniya, Netzel, Henryka E., Löbling, Lisa, Pápics, Péter I., Postel, Andreas, Roelens, Maroussia, Spetsieri, Zoi T., Thoul, Anne, Zák, Jiří, Bonvin, Vivien, Martin, David V., Millon, Martin, Saesen, Sophie, Wyttenbach, Aurélien, Figueira, Pedro, Marmier, Maxime, Prins, Saskia, Raskin, Gert, van Winckel, Hans
Publikováno v:
A&A 686, A177 (2024)
This first VELOCE data release comprises 18,225 high-precision RV measurements of 258 bona fide classical Cepheids on both hemispheres collected mainly between 2010 and 2022, alongside 1161 additional observations of 164 other stars. The median per-o
Externí odkaz:
http://arxiv.org/abs/2404.12280
Publikováno v:
Publ. Astron. Soc. Aust. 41 (2024) e025
Post-asymptotic giant branch stars (post-AGB) in binary systems, with typical orbital periods between ~100 to ~1000 days, result from a poorly understood interaction that terminates their precursory AGB phase. The majority of these binaries display a
Externí odkaz:
http://arxiv.org/abs/2403.11475
Autor:
Mohorian, Maksym, Kamath, Devika, Menon, Meghna, Ventura, Paolo, Van Winckel, Hans, García-Hernández, D. A., Masseron, Thomas
Dusty post-red giant branch (post-RGB) stars are low- and intermediate-mass stars where the RGB evolution was prematurely terminated by a poorly understood binary interaction. These binary stars are considered to be low-luminosity analogues of post-a
Externí odkaz:
http://arxiv.org/abs/2403.09999
Autor:
Verhamme, Olivier, Kluska, Jacques, Ferreira, Jonathan, Bollen, Dylan, De Prins, Toon, Kamath, Devika, Van Winckel, Hans
Context. Jets are commonly detected in post-asymptotic giant branch (post-AGB) binaries and originate from an accretion process onto the companion of the post-AGB primary. These jets are revealed by high-resolution spectral time series. Aims. This pa
Externí odkaz:
http://arxiv.org/abs/2401.16370
Autor:
Merle, Thibault, Pourbaix, Dimitri, Jorissen, Alain, Siopis, Christos, Van Eck, Sophie, Van Winckel, Hans
The Gaia mission is delivering a large number of astrometric orbits for binary stars. By combining these with spectroscopic orbits for systems with two observable spectra (SB2), it is possible to derive the masses of both components. However, to get
Externí odkaz:
http://arxiv.org/abs/2312.09151
Autor:
Royer, P., Merle, T., Dsilva, K., Sekaran, S., Van Winckel, H., Frémat, Y., Van der Swaelmen, M., Gebruers, S., Tkachenko, A., Laverick, M., Dirickx, M., Raskin, G., Hensberge, H., Abdul-Masih, M., Acke, B., Alonso, M. L., Mahato, S. Bandhu, Beck, P. G., Behara, N., Bloemen, S., Buysschaert, B., Cox, N., Debosscher, J., De Cat, P., Degroote, P., De Nutte, R., De Smedt, K., de Vries, B., Dumortier, L., Escorza, A., Exter, K., Goriely, S., Gorlova, N., Hillen, M., Homan, W., Jorissen, A., Kamath, D., Karjalainen, M., Karjalainen, R., Lampens, P., Lobel, A., Lombaert, R., Marcos-Arenal, P., Menu, J., Merges, F., Moravveji, E., Nemeth, P., Neyskens, P., Ostensen, R., Pápics, P. I., Perez, J., Royer, S. Prins S., Samadi-Ghadim, A., Sana, H., Fuentes, A. Sans, Scaringi, S., Schmid, V., Siess, L., Siopis, C., Smolders, K., Sodor, S., Thoul, A., Triana, S., Vandenbussche, B., Van de Sande, M., Van De Steene, G., Van Eck, S., van Hoof, P. A. M., Van Marle, A. J., Van Reeth, T., Vermeylen, L., Volpi, D., Vos, J., Waelkens, C.
Publikováno v:
A&A 681, A107 (2024)
Over the past decades, libraries of stellar spectra have been used in a large variety of science cases, including as sources of reference spectra for a given object or a given spectral type. Despite the existence of large libraries and the increasing
Externí odkaz:
http://arxiv.org/abs/2311.02705
Autor:
Bujarrabal, V., Alcolea, J., Castro-Carrizo, A., Kluska, J., Contreras, C. Sanchez, Van Winckel, H.
We aim to study the dust distribution in the central regions of the Keplerian disk of the Red Rectangle, the prototype of binary post-AGB stars with rotating circumbinary disks, and to compare it with the distribution of relevant molecular gas tracer
Externí odkaz:
http://arxiv.org/abs/2309.07622