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  • 0 posts edited
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15h
asked When a neutron star accretes matter, will its mass increase?
Aug
28
comment Why are there no Oe or Ae stars?
@The unique characteristics of Be stars are not mainly because of their circumstellar discs? How about Oe stars?
Aug
28
answered Does a black hole become a normal star again?
Aug
28
awarded  Inquisitive
Aug
27
asked Why are there no Oe or Ae stars?
Aug
25
comment how to assess a periodical signal?
I remember there is a method which can give significance level directly. Let me search for that first.
Aug
25
comment how to assess a periodical signal?
my point is how to assess the significance of a periodical signal. Is there a more popular way than CC's?
Aug
25
comment how to assess a periodical signal?
it is said that we can calculate the dispersion and chi2 directly?
Aug
24
asked how to assess a periodical signal?
Aug
14
comment Southern hemisphere is short of radio telescopes?
@rob but you can not deny there are many big optical telescopes in the southern hemisphere, but big radio telescopes are not enough. It is not necessarily in Chile.
Aug
13
revised Southern hemisphere is short of radio telescopes?
added 4 characters in body
Aug
13
revised Southern hemisphere is short of radio telescopes?
added 26 characters in body; edited title
Aug
12
asked Southern hemisphere is short of radio telescopes?
Jul
24
comment why do peple think the most energetic events in the universe are GRBs?
Yes. I heard this at several lectures. Maybe it is because we have not found or confirmed one. I thought the 1st paragraph shows this. Anyway, it seems people do not talk about this kind of phenomena much. I doubt it is possible they could be less energetic than a GRB?
Jul
22
comment why do peple think the most energetic events in the universe are GRBs?
Many speakers like to mention GRBs that way. en.wikipedia.org/wiki/Gamma-ray_burst also shows this kind of tendency.
Jul
20
asked why do peple think the most energetic events in the universe are GRBs?
Jul
20
reviewed Approve about H$_\alpha$ and H$_\beta$ lines in astronomical objects' spectra
Jul
16
revised which pulsar has the longest spin period so far?
edited body
Jul
16
comment which pulsar has the longest spin period so far?
i am still confused. Relative questions are added in the end.
Jul
16
revised which pulsar has the longest spin period so far?
added 110 characters in body