English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In relation to two meetings on stellar binary systems in July 2017, Isummarize my view that in the majority of strongly interacting stellar binarysystems jets play decisive roles. In the meeting The Physics of Evolved StarsII: The role of Binarity (Nice, July 10-13, 2017) many talks and posters wereconcentrated on the shaping of circumstellar matter, with some significant newresults, like the observations of wide jets launched from binary systems. Inthe meeting The Impact of Binaries on Stellar Evolution (ESO Garching, July3-7, 2017), both in the opening and the summary talks the speakers mentionedthat "Textbooks need most likely to be rewritten". I made my point that somenew chapters were already written, although researchers do not read them butrather keep referring to the `old textbooks'. For example, too many speakersand authors keep referring only to the single degenerate and double degeneratescenarios for the progenitors of SNe Ia. Researchers must refer also to the`new textbook chapter' on the core degenerate (CD) scenario. Other examplesinvolve the role of jets. Jets lead to a new evolutionary phase, that of thegrazing envelope evolution (GEE), that should be considered alongside the olderones, e.g., the common envelope evolution, Roche lobe overflow (RLOF), and windmass loss and accretion. I discuss how the GEE can solve some puzzling binarysystems. We should also consider the role of jets as an extra energy source toremove the common envelope and in powering intermediate luminosity opticaltransients (ILOTs). One strong advantage of jets is that in many cases theyoperate through a negative feedback mechanism, hence preventing the need for afine tuning. The operation of the jet feedback mechanism (JFM) connects alsobinary evolution to explosion of massive stars as core collapse supernovae.

A summary of two meetings on the role of jets in interacting stellar binaries