Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Podsiadlowski, Philipp"'
Publikováno v:
ApJL, 972, L18 (2024)
Recent neutron star surface observations corroborate a long-standing theory that neutron stars may be accelerated over extended periods after their birth. We analyze how these prolonged rocket-like accelerations, combined with rapid birth kicks, impa
Externí odkaz:
http://arxiv.org/abs/2407.20967
Autor:
Pakmor, Rüdiger, Pelisoli, Ingrid, Justham, Stephen, Rajamuthukumar, Abinaya S., Röpke, Friedrich K., Schneider, Fabian R. N., de Mink, Selma E., Ohlmann, Sebastian T., Podsiadlowski, Philipp, Fraile, Javier Moran, Vetter, Marco, Andrassy, Robert
Stellar mergers are one important path to highly magnetised stars. Mergers of two low-mass white dwarfs may create up to every third hot subdwarf star. The merging process is usually assumed to dramatically amplify magnetic fields. However, so far on
Externí odkaz:
http://arxiv.org/abs/2407.02566
As gravitational wave detectors improve, observations of black hole (BH) mergers will provide the joint distribution of their masses and spins. This will be a critical benchmark to validate formation scenarios. Merging binary BHs formed through isola
Externí odkaz:
http://arxiv.org/abs/2311.14041
Autor:
Wei, Dandan, Schneider, Fabian R. N., Podsiadlowski, Philipp, Laplace, Eva, Roepke, Friedrich K., Vetter, Marco
Publikováno v:
A&A 688, A87 (2024)
Mergers of neutron stars (NSs) and black holes (BHs) are nowadays observed routinely thanks to gravitational-wave (GW) astronomy. In the isolated binary-evolution channel, a common-envelope (CE) phase of a red supergiant (RSG) and a compact object is
Externí odkaz:
http://arxiv.org/abs/2311.07278
In binary black-hole mergers from isolated binary-star evolution, both black holes are from progenitor stars that have lost their hydrogen-rich envelopes by binary mass transfer. Envelope stripping is known to affect the pre-supernova core structures
Externí odkaz:
http://arxiv.org/abs/2305.02380
Autor:
Ablimit, Iminhaji, Podsiadlowski, Philipp, Di Stefano, Rosanne, Rappaport, Saul A., Wicker, James
Publikováno v:
The Astrophysical Journal Letters, Volume 941, Issue 2, id.L33; Published date: December 2022
Various white-dwarf (WD) binary scenarios have been proposed trying to understand the nature and the diversity of Type Ia supernovae (SNe Ia). In this work, we study the evolution of carbon-oxygen WD -- red giant (RG) binaries (including the role of
Externí odkaz:
http://arxiv.org/abs/2301.01783
Publikováno v:
A&A 667, A154 (2022)
The single-degenerate (SD) model is one of the leading models for the progenitors of Type Ia supernovae (SNe Ia). Recently, a new version of the SD model, the common-envelope wind (CEW) model, has been proposed, which, in principle, has the potential
Externí odkaz:
http://arxiv.org/abs/2210.07607
Autor:
Hirai, Ryosuke, Podsiadlowski, Philipp
We perform 3D hydrodynamical simulations of new-born neutron stars (NSs) colliding with main-sequence binary companions after supernova explosions. Based on those hydrodynamical models, we construct a semi-analytical formula that describes the drag f
Externí odkaz:
http://arxiv.org/abs/2208.00915
Autor:
Moreno, Melvin M., Schneider, Fabian R. N., Roepke, Friedrich K., Ohlmann, Sebastian T., Pakmor, Ruediger, Podsiadlowski, Philipp, Sand, Christian
Publikováno v:
A&A 667, A72 (2022)
Modeling the evolution of progenitors of gravitational-wave merger events in binary stars faces two major uncertainties: the common-envelope phase and supernova kicks. These two processes are critical for the final orbital configuration of double com
Externí odkaz:
http://arxiv.org/abs/2111.12112
Most neutron stars (NSs) and black holes (BHs) are believed to be the final remnants in the evolution of massive stars. In this study, we propose a new formation channel for the formation of BHs and peculiar NSs (specifically, magnetars and Thorne-$\
Externí odkaz:
http://arxiv.org/abs/2108.08430