Detection of a Millimeter Flare From Proxima Centauri · HackerPapers discussions

Detection of a Millimeter Flare From Proxima Centauri — mentioned by raattgift

Sat, 24 Mar 2018 15:51:34 GMT

( Aside: link to preprint: https://arxiv.org/abs/1802.08257 ) tl;dr: parochialism is convenient Practically anyone doing real astronomy will use a well-defined continuous Earth-centric (or solar-system barycentric) timescale for a variety of reasons including reproducibility within the solar system (after all, astronomers on Earth only have other Earth-bound/near-Earth astronomers to communicate with at present) and the uncertainties in (spacetime) position of astronomical objects dwarfing the precision of local timescales (e.g. TT or TAI). Describing observables at one timestamp (a form of…

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

Detection of a Millimeter Flare From Proxima Centauri — mentioned by kwoff

Sat, 24 Mar 2018 14:08:42 GMT

The web page links to a journal article that you have to pay for, but you can find the freely-readable version of the full article at https://arxiv.org/abs/1802.08257 . Section 4.2 discusses dust emission. The original paper they're correcting is at https://arxiv.org/abs/1711.00578 (section 3.2). This paper concludes that the previous paper had wrong assumptions because a flare happened during their measurement, so they didn't need to hypothesize that there is a dust belt (at least the 2 inner ones; they didn't have info about the far outer belt) to account for the supposed "excess emission".

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