Simulations of common-envelope evolution in binary stellar systems: physical models and numerical techniques

FK Röpke, O De Marco - Living Reviews in Computational Astrophysics, 2023 - Springer
When the primary star in a close binary system evolves into a giant and engulfs its
companion, its core and the companion temporarily orbit each other inside a common …

Post-dynamical inspiral phase of common envelope evolution-Binary orbit evolution and angular momentum transport

D Gagnier, O Pejcha - Astronomy & Astrophysics, 2023 - aanda.org
After the companion dynamically plunges through the primary's envelope, the two cores
remain surrounded by a common envelope and the decrease of the orbital period P orb …

Common envelope binary interaction simulations between a thermally pulsating AGB star and a low mass companion

M González-Bolívar, O De Marco… - Monthly Notices of …, 2022 - academic.oup.com
At least one in five of all planetary nebulae are the product of a common envelope (CE)
interaction, where the companion in-spirals into the envelope of an asymptotic giant branch …

Long-term Evolution of Massive-star Post-common-envelope Circumbinary Disks and the Environments of Fast Luminous Transients

S Tuna, BD Metzger - The Astrophysical Journal, 2023 - iopscience.iop.org
If the envelope of a massive star is not entirely removed during common envelope (CE)
interaction with an orbiting compact (eg, black hole (BH) or neutron star (NS)) companion …

Jets in common envelopes: a low-mass main-sequence star in a red giant

D López-Cámara, F De Colle… - Monthly Notices of …, 2022 - academic.oup.com
We present small-scale 3D hydrodynamical simulations of the evolution of a 0.3 M⊙ main-
sequence (MS) star that launches two perpendicular jets within the envelope of a 0.88 M⊙ …

Gravitational wave emission from dynamical stellar interactions

J Morán-Fraile, FRN Schneider, FK Röpke… - Astronomy & …, 2023 - aanda.org
We are witnessing the dawn of gravitational wave (GW) astronomy. With currently available
detectors, observations are restricted to GW frequencies in the range between∼ 10 Hz and …

Prospects of gravitational wave detections from common envelope evolution with LISA

M Renzo, T Callister, K Chatziioannou… - The Astrophysical …, 2021 - iopscience.iop.org
Understanding common envelope (CE) evolution is an outstanding problem in binary
evolution. Although the CE phase is not driven by gravitational wave (GW) emission, the …

Jets from main sequence and white dwarf companions during common envelope evolution

Y Zou, L Chamandy… - Monthly Notices of …, 2022 - academic.oup.com
It has long been speculated that jet feedback from accretion on to the companion during a
common envelope (CE) event could affect the orbital evolution and envelope unbinding …

Envelope ejection and the transition to homologous expansion in common-envelope events

V Valsan, SV Borges, L Prust… - Monthly Notices of the …, 2023 - academic.oup.com
We conduct a long-time-scale (d) 3D simulation of a common-envelope event with a red
giant and a main-sequence companion, using the moving-mesh hydrodynamic solver …

Successive common envelope events from multiple planets

L Chamandy, EG Blackman… - Monthly Notices of the …, 2021 - academic.oup.com
Many stars harbour multiplanet systems. As these stars expand late in their evolutions, the
innermost planet may be engulfed, leading to a common envelope (CE) event. Even if this is …