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  • 0 posts edited
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  • 32 votes cast
Jun
28
asked material exchange between a planet and its host
Jun
11
comment why does not Australia/Russia have optical telescopes?
@florin why does not Uncle Sam build telescopes in its northern little brother's land?
Jun
11
comment radial velocity fitting of a binary
So I can fit using your first formula directly? How to handle true anomlay?
Jun
6
comment radial velocity fitting of a binary
@rob a formula to help me code and two questions. If there are too many details, a ready made solution is also good reference.
Jun
6
revised radial velocity fitting of a binary
added 25 characters in body
Jun
6
revised radial velocity fitting of a binary
added 273 characters in body; edited tags
Jun
6
asked radial velocity fitting of a binary
Jun
5
comment why are solar telescopes built on lakes? the site differnece between a solar and an optical telescope
Because solar telescopes work at daytime, so they need more stable atmosphere. Although optical telescopes need stable atmosphere too, they work at night. Big bear is not far away from LA. Why do not we consider lakes in Canada?
Jun
5
accepted why are solar telescopes built on lakes? the site differnece between a solar and an optical telescope
Jun
3
comment why does not Australia/Russia have optical telescopes?
you mean aat, right? Both of the two countries have poor optical telescope resources. Australia has famous radio telescopes. Why do they just have a 3.89m optical telescope?
Jun
3
comment why does not Australia/Russia have optical telescopes?
@userLTK In yout jpg, all of the three are radio telescopes
Jun
2
asked why does not Australia/Russia have optical telescopes?
May
25
comment why are solar telescopes built on lakes? the site differnece between a solar and an optical telescope
@Mitch not just big bear, there are other examples. I know optical and solar telescopes consider different factors, but do not know what factors exactly.
May
25
revised why are solar telescopes built on lakes? the site differnece between a solar and an optical telescope
edited body
May
25
revised why are solar telescopes built on lakes? the site differnece between a solar and an optical telescope
added 124 characters in body; edited tags; edited title
May
25
asked why are solar telescopes built on lakes? the site differnece between a solar and an optical telescope
May
3
comment Can close binaries have a very eccentric orbit?
I have sent the right pdf to you.
May
3
comment Can close binaries have a very eccentric orbit?
you are very professional. How can you find them so quickly? There are two binaries which are not so young, adsabs.harvard.edu/abs/2014ApJ...788..134K and adsabs.harvard.edu/abs/2015IBVS.6138....1C, especially the 2rd one. Kozai mechanism is suppressed for very short period binaries. Could you please say more about "an injection of energy via a dynamical interaction"?
Apr
29
comment Could our Sun be a companion star of a massive black hole?
@joan I am looking for useful comments or suggestions. It is a dumb question? I learned a lot from Walter's comment. How about yours?
Apr
28
comment Could our Sun be a companion star of a massive black hole?
@rob there are visible tidal effects on our solar system now? Anything weird happens in our solar system?