Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Adrian S Hamers"'
Autor:
Abinaya Swaruba Rajamuthukumar, Adrian S. Hamers, Patrick Neunteufel, Rüdiger Pakmor, Selma E. de Mink
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 1, p 9 (2023)
Type Ia supernovae (SNe Ia) are thought to be the result of thermonuclear explosions in white dwarfs (WDs). Commonly considered formation pathways include two merging WDs (the double-degenerate channel) and a single WD accreting material from a H or
Externí odkaz:
https://doaj.org/article/2a72dfef536b4047a7754d9cada39c3b
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 517:2111-2120
We present evolutionary pathways for creating hot subdwarf OB (sdOB) stars from hierarchical triple configurations. We use the population synthesis code Multiple Stellar Evolution (MSE) to follow the stellar, binary, and gravitational dynamical evolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::251ce0ec09b9dfdc952b1bebd19b2b10
https://doi.org/10.1093/mnras/stac2798
https://doi.org/10.1093/mnras/stac2798
Autor:
Thibault Merle, Adrian S. Hamers, Sophie Van Eck, Alain Jorissen, Mathieu Van der Swaelmen, Karen Pollard, Rodolfo Smiljanic, Dimitri Pourbaix, Tomaž Zwitter, Gregor Traven, Gerry Gilmore, Sofia Randich, Anaïs Gonneau, Anna Hourihane, Germano Sacco, C. Clare Worley
Publikováno v:
Nature Astronomy. 6:681-688
Binaries have received much attention as possible progenitors of Type Ia supernova (SNIa) explosions, but long-term gravitational effects in tight triple or quadruple systems could also play a key role in producing SNIa. Here we report on the propert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b0d97438832215c46704f6b0ac2a2d7
https://doi.org/10.1038/s41550-022-01664-5
https://doi.org/10.1038/s41550-022-01664-5
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Recent detections of gravitational waves from mergers of neutron stars (NSs) and black holes (BHs) in the low and high-end mass gap regimes pose a puzzle to standard stellar and binary evolution theory. Mass-gap mergers may originate from successive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d660cad88e7f015b7eb1cb894b84a341
https://doi.org/10.1093/mnras/stab2136
https://doi.org/10.1093/mnras/stab2136
Autor:
Holly P. Preece, Adrian S. Hamers, Patrick G. Neunteufel, Adam L. Schaefer, Christopher A. Tout
We present an updated prescription for the equilibrium tides suitable for population synthesis codes. A grid of 1D evolutionary models was created and the viscous time-scale was calculated for each detailed model. A metallicity dependent power-law re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e73499b8f1b6d1d3fe646b1dc78f5cdf
Publikováno v:
Astronomy & Astrophysics, 659:A86
In self-gravitating $N$-body systems, small perturbations introduced at the start, or infinitesimal errors that are produced by the numerical integrator or are due to limited precision in the computer, grow exponentially with time. For Newton's gravi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e9bf36580653fd983a30ced911c6b07
https://ora.ox.ac.uk/objects/uuid:b0bcfe48-872c-4e81-8fdf-0c1eaed2e24b
https://ora.ox.ac.uk/objects/uuid:b0bcfe48-872c-4e81-8fdf-0c1eaed2e24b
Autor:
Monica Zorotovic, Matthias R. Schreiber, María Paula Ronco, Boris T. Gänsicke, Adrian S. Hamers, F. Lagos
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 501:676-682
The discovery of a giant planet candidate orbiting the white dwarf WD 1856+534 with an orbital period of 1.4 d poses the questions of how the planet reached its current position. We here reconstruct the evolutionary history of the system assuming com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6155635bcc49d9677e8994cb27c967db
https://doi.org/10.1093/mnras/staa3703
https://doi.org/10.1093/mnras/staa3703
We present two approaches to determine the dynamical stability of a hierarchical triple-star system. The first is an improvement on the Mardling-Aarseth stability formula from 2001, where we introduce a dependence on inner orbital eccentricity and im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5bf43c7b07f2b5039a1e1c973db8153
Autor:
Adrian S. Hamers
I present a numerical fit to the peak harmonic gravitational wave frequency emitted by an eccentric binary system in the post-Newtonian approximation. This fit significantly improves upon a previous commonly-used fit in population synthesis studies,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e62485995a82c300569df34fdc6895c1
http://arxiv.org/abs/2111.08033
http://arxiv.org/abs/2111.08033
Triple-star systems exhibit a phenomenon known as the Triple Evolution Dynamical Instability (TEDI), in which mass loss in evolving triples triggers short-term dynamical instabilities, potentially leading to collisions of stars, exchanges, and ejecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15a769f3f3a0b00538762fc985048413
http://arxiv.org/abs/2107.13620
http://arxiv.org/abs/2107.13620