nick c wrote:Stars in close proximity on a star map could just be lined up. You need more evidence than that. Why does Astronomy not know that Gliese 832 is a double star? They are pretty good at detecting things like that, what technique do you know that they don't?
See the section on "Optical Doubles"
You have a red and blue star, both could be planets or both could be stars, they could be very close to each other or far away. They could be 16 billion light years away from us or just a few light years or less.
nick c wrote:Gliese 832 is red dwarf star orbited by two known planets - Gliese 832 b, a Jupiter sized planet; and Gliese 832 c, the "super Earth" of the thread title. That is what is known. There is no known stellar companion unless you consider b to be a brown dwarf.
nick c wrote:If they can detect a terrestrial planet such as c then a brown dwarf would be easy enough to detect. Where could the alleged stellar companion hide?
While that statement may be true, it does not apply to this situation. Astronomers have no reason to suppress information that Gliese 832 is double star! There are many double star systems, there is nothing to suppress, a stellar system is either part of a double or multiple system or it is not. Either way it is not paradigm shaking news. Why would astronomers conspire to suppress knowledge of a "hidden" companion to Gliese 832, what is to be gained? Why do they not suppress the fact that Alpha Centauri (at a distance of 4 light years) is a double star? triple if Proxima is part of the system. Sirius at 8 light years distance, is also a double star, nobody is suppressing that!pavlink wrote:It is difficult to see something when your paycheck, your career and credibility depends on not seeing it.
Detailed observations of the solar system planets reveal a wide variety of local atmospheric conditions. Astronomical observations have revealed a variety of extrasolar planets none of which resembles any of the solar system planets in full. Instead, the most massive amongst the extrasolar planets, the gas giants, appear very similar to the class of (young) Brown Dwarfs which are amongst the oldest objects in the universe. Despite of this diversity, solar system planets, extrasolar planets and Brown Dwarfs have broadly similar global temperatures between 300K and 2500K. In consequence, clouds of different chemical species form in their atmospheres. While the details of these clouds differ, the fundamental physical processes are the same. Further to this, all these objects were observed to produce radio and X-ray emission. While both kinds of radiation are well studied on Earth and to a lesser extent on the solar system planets, the occurrence of emission that potentially originate from accelerated electrons on Brown Dwarfs, extrasolar planets and protoplanetary disks is not well understood yet. This paper offers an interdisciplinary view on electrification processes and their feedback on their hosting environment in meteorology, volcanology, planetology and research on extrasolar planets and planet formation.
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