Zobrazeno 1 - 10
of 768
pro vyhledávání: '"Podsiadlowski, P."'
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
Publikováno v:
A&A 686, A45 (2024)
The majority of massive stars are expected to exchange mass or merge with a companion during their lives. This immediately implies that most supernovae (SNe) are from such post-mass-exchange objects. Here, we explore how mass accretion and merging af
Externí odkaz:
http://arxiv.org/abs/2403.03984
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
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
The common-envelope (CE) phase is a crucial stage in binary star evolution because the orbital separation can shrink drastically while ejecting the envelope of a giant star. Three-dimensional (3D) hydrodynamic simulations of CE evolution are indispen
Externí odkaz:
http://arxiv.org/abs/2311.06332
Massive stars can explode in powerful supernovae (SNe) forming neutron stars but they may also collapse directly into black holes (BHs). Understanding and predicting their final fate is increasingly important, e.g, in the context of gravitational-wav
Externí odkaz:
http://arxiv.org/abs/2311.05701
Autor:
T., Moore, J., Smartt S., M., Nicholl, S., Srivastav, F., Stevance H., B., Jess D., T., Grant S. D., D., Fulton M., L., Rhodes, A., Sim S., R., Hirai, P., Podsiadlowski, P., Anderson J., C., Ashall, W., Bate, R., Fender, P., Gutierrez C., A., Howell D., E., Huber M., C., Inserra, G., Leloudas, G., Monard L. A., E., Muller-Bravo T., J., Shappee B., W., Smith K., G., Terreran, J., Tonry, A., Tucker M., R., Young D., A., Aamer, -W., Chen T., F., Ragosta, L., Galbany, M., Gromadzki, L., Harvey, P., Hoeflich, C., McCully, M., Newsome, P., Gonzalez E., C., Pellegrino, P., Ramsden, M., Perez-Torres, J., Ridley E., X., Sheng, J, Weston
We present multi-wavelength photometry and spectroscopy of SN 2022jli, an unprecedented Type Ic supernova discovered in the galaxy NGC 157 at a distance of $\approx$ 23 Mpc. The multi-band light curves reveal many remarkable characteristics. Peaking
Externí odkaz:
http://arxiv.org/abs/2309.12750
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