A Sun-like star orbiting a black hole · HackerPapers discussions

A Sun-like star orbiting a black hole — mentioned by raattgift

Tue, 30 May 2023 21:31:49 GMT

The paper rests on the MNRAS published version of <https://arxiv.org/abs/2209.06833> (ref. [EBRQ+22] in the preprint at the top, cited at the end of the paragraph you quote upthread). [EBRQ+22] itself proposes a triple as a possibility: "The system's evolution may be better-explained in models in which the G star was initially a wide tertiary companion to a close binary containing two massive stars. In this case, interactions between the two stars could have prevented either one from expanding to become a red supergiant, such that the G star could have formed in an orbit similar to its…

Paper and discussion history. A mention is not an endorsement.

A Sun-like star orbiting a black hole — mentioned by retbull

Tue, 30 May 2023 20:51:40 GMT

The original paper that is referred to in this is https://arxiv.org/abs/2209.06833

Paper and discussion history. A mention is not an endorsement.

A Sun-like star orbiting a black hole — mentioned by Tepix

Tue, 08 Nov 2022 14:54:41 GMT

The paper is not yet on sci-hub. arXiv link: https://arxiv.org/abs/2209.06833

Paper and discussion history. A mention is not an endorsement.

A Sun-like star orbiting a black hole — mentioned by fmblwntr

Sat, 05 Nov 2022 17:19:17 GMT

No, from the abstract of the paper "The orbital period, 185.6 days, is longer than that of any known stellar mass black hole binary. [...] How the system formed is uncertain. Common envelope evolution can only produce the system's wide orbit under extreme and likely unphysical assumptions" See section 8.4 for details: https://arxiv.org/abs/2209.06833 But basically the idea is that they are assumed to have interacted in the past (based on the distance), and given that, all current models of such interactions would predict a very tight final orbit for the solar mass star.

Paper and discussion history. A mention is not an endorsement.