Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Onno R. Pols"'
Publikováno v:
Proceedings of the International Astronomical Union, 14, S343, pp. 230-234
Proceedings of the International Astronomical Union, 14, 230-234
Proceedings of the International Astronomical Union, 14, 230-234
We present the results of a decade-long radial velocity monitoring campaign of post-AGB binaries. We derived the orbital elements of 33 post-AGB binaries. We find a companion mass distribution centred around 1.09 M⊙ with a very large spread. All th
Publikováno v:
Astronomy & Astrophysics, 642, 1-22
Astronomy & Astrophysics, 642, pp. 1-22
Astronomy & Astrophysics, 642, pp. 1-22
Binary post-asymptotic giant branch (post-AGB) stars have orbital periods in the range of 100--2500 days in eccentric orbits. They are surrounded by circumbinary dusty discs. They are the immediate result of unconstrained binary interaction processes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dc80fc7d138f40f091ab70e3d2a6d8f
http://arxiv.org/abs/2008.08097
http://arxiv.org/abs/2008.08097
Publikováno v:
Astronomy & Astrophysics, 638, 1-19
Astronomy & Astrophysics, 638, pp. 1-19
Astronomy & Astrophysics, 638, pp. 1-19
Metallicity is known to significantly affect the radial expansion of a massive star: the lower the metallicity, the more compact the star, especially during its post-MS evolution. We study this effect in the context of binary evolution. Using the ste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24feaa740940c83e6aaafbcec5828796
https://hdl.handle.net/https://repository.ubn.ru.nl/handle/2066/220201
https://hdl.handle.net/https://repository.ubn.ru.nl/handle/2066/220201
Publikováno v:
Astronomy & Astrophysics, 625, pp. 1-15
Astronomy & Astrophysics, 625, 1-15
Astronomy and Astrophysics (0004-6361)
Astronomy and Astrophysics (0004-6361), 625, A85
Astronomy & Astrophysics, 625, 1-15
Astronomy and Astrophysics (0004-6361)
Astronomy and Astrophysics (0004-6361), 625, A85
We present stellar_wind.py, a module that provides multiple methods of simulating stellar winds using smoothed particle hydrodynamics codes (SPH) within the astrophysical multipurpose software environment (AMUSE) framework. With the simple wind mode,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c40da3cdd19ff53c8eda405f12c9ecfb
https://hdl.handle.net/2066/204054
https://hdl.handle.net/2066/204054
Publikováno v:
Astronomy & Astrophysics, 626, 1-19
Astronomy & Astrophysics, 626, pp. 1-19
Astronomy & Astrophysics, 626, pp. 1-19
Wind mass transfer in binary systems with AGB donor stars plays a fundamental role in the formation of a variety of objects, including barium stars and CEMP stars. We carry out a comprehensive set of SPH simulations of wind-losing AGB stars in binari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a87f6651745aaefefe4c02e5c428abd1
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 483, 4397-4410
Monthly Notices of the Royal Astronomical Society, 483, 4, pp. 4397-4410
Monthly Notices of the Royal Astronomical Society, 483, 4, pp. 4397-4410
Neutron star mergers (NSM) are likely to be the main production sites for the rapid (r-) neutron capture process elements. We study the r-process enrichment of the stellar halo of the Milky Way through NSM, by tracing the typical r-process element Eu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c35374ece72004b3ba541c8ca8fd8ef
https://hdl.handle.net/https://repository.ubn.ru.nl/handle/2066/201609
https://hdl.handle.net/https://repository.ubn.ru.nl/handle/2066/201609
Autor:
Onno R. Pols, Gijs Nelemans, Hans Van Winckel, R. Manick, Christoffel Waelkens, Ana Escorza, Glenn-Michael Oomen, Devika Kamath
Publikováno v:
Astronomy & astrophysics, 620
Astronomy & Astrophysics, 620, pp. 1-21
Astronomy & Astrophysics, 620, 1-21
Astronomy & Astrophysics, 620, pp. 1-21
Astronomy & Astrophysics, 620, 1-21
Binary post-Asymptotic giant branch (post-AGB) stars are thought to be the products of a strong but poorly understood interaction during the AGB phase. The aim of this contribution is to update the orbital elements of a sample of galactic post-AGB bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2d396fe1e24579fb431a742e8571235
http://arxiv.org/abs/1810.01842
http://arxiv.org/abs/1810.01842
Publikováno v:
Astronomy & Astrophysics, 618, 1-17
Astronomy and Astrophysics, 618, A50
Astronomy & Astrophysics, 618, pp. 1-17
Astronomy and Astrophysics, 618, A50
Astronomy & Astrophysics, 618, pp. 1-17
In low-mass binary systems, mass transfer is likely to occur via a slow and dense stellar wind when one of the stars is in the AGB phase. Observations show that many binaries that have undergone AGB mass transfer have orbital periods of 1-10 yr, at o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab1c0b9b422812a4c55a5471a53fc5a4
http://arxiv.org/abs/1805.03208
http://arxiv.org/abs/1805.03208
Publikováno v:
Astronomy & Astrophysics, 602, A52
Astronomy & Astrophysics, 602, 1-18
Astronomy & Astrophysics
Astronomy & Astrophysics, 602, pp. 1-18
Astronomy & Astrophysics, 602, 1-18
Astronomy & Astrophysics
Astronomy & Astrophysics, 602, pp. 1-18
Observations indicate that stars generally lose their protoplanetary discs on a timescale of about 5 Myr. Which mechanisms are responsible for the disc dissipation is still debated. Here we investigate the movement through an ambient medium as a poss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::137b85ed050ccbee2828451524b82792
Publikováno v:
Astronomy & Astrophysics (0004-6361), 604, A91
Astronomy & Astrophysics, 604, pp. 1-13
Astronomy & Astrophysics, 604, 1-13
Astronomy & Astrophysics, 604
Astronomy & Astrophysics (0004-6361)
Astronomy & Astrophysics, 604, pp. 1-13
Astronomy & Astrophysics, 604, 1-13
Astronomy & Astrophysics, 604
Astronomy & Astrophysics (0004-6361)
Observations indicate that the dispersal of protoplanetary discs in star clusters occurs on time scales of about 5 Myr. Several processes are thought to be responsible for this disc dispersal. Here we compare two of these processes: dynamical encount
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38775e851de15ff98deb285f8bc7c49d
https://hdl.handle.net/https://repository.ubn.ru.nl/handle/2066/176384
https://hdl.handle.net/https://repository.ubn.ru.nl/handle/2066/176384