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Common envelope evolution: where we stand and how we can move forward
This work aims to present our current best physical understanding of common-envelope evolution (CEE). We highlight areas of consensus and disagreement, and stress ideas which should point the way
Transient outburst events from tidally disrupted asteroids near white dwarfs
Abstract We discuss the possibility of observing the transient formation event of an accretion disk from the tidal destruction process of an asteroid near a white dwarf (WD). This scenario is
A circumbinary disc in the final stages of common envelope and the core-degenerate scenario for Type Ia supernovae
We study the final stages of the common envelope (CE) evolution and find that a substantial fraction of the ejected mass does not reach the escape velocity. To reach this conclusion we use a
We study the feedback between heating and cooling of the intracluster medium (ICM) in cooling flow (CF) galaxies and clusters. We adopt the popular view that the heating is due to an active galactic
Asymmetric envelope expansion of supernova 1987A
Des modeles analytiques sont presentes pour l'expansion a symetrie spherique d'une enveloppe de supernova similaire a celle de SN 1987A. Une solution self-similaire montre que le profil de densite
Main-Sequence Stellar Eruption Model for V838 Monocerotis
We propose that the energy source of the outburst of V838 Mon and similar objects is an accretion event, i.e., gravitational energy rather than thermonuclear runaway. We show that the merger of two
Theory of local thermal instability in spherical systems
The gasdynamical properties of local thermal instability in optically thin astrophysical plasmas as it occurs in spherical accretion and winds is investigated. In a medium characterized by both
The common envelope phase in the evolution of binary stars
The common envelope phase in the evolution of binary systems is examined. Three parameters are identified which characterize the efficiency of energy deposition, the importance of three-dimensional
Detection of Extended X-ray Emission from the Planetary Nebula BD +30 3639
We report the detection of well-resolved, extended X-ray emission from the young planetary nebula BD +30°3639 using the Advanced CCD Imaging Spectrometer (ACIS) aboard the Chandra X-ray Observatory.