빛나는밤
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1 answers
4 votes
184 views
Redshift of the Cosmic Microwave Background: increasing or decreasing?
1 answers
2 votes
84 views
Is Hubble graph straight line or curve?
0 answers
2 votes
46 views
Does the cosmological redshift of the same object has a same value as it evolves
0 answers
1 votes
66 views
Korean SAT question error: Hubble law
0 answers
1 votes
25 views
Explain Hubble's law using proper distance and comoving distance
1 answers
1 votes
43 views
Expansion velocity and recessional velocity
1 answers
1 votes
56 views
Is the cosmological Doppler effect more effective at long wavelengths?
2 answers
1 votes
82 views
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Kinematic behavior of a flat, a closed, an open universe
0 answers
0 votes
19 views
Balmer alpha, beta line intensity
0 answers
0 votes
10 views
Observability of proper distance
0 answers
0 votes
42 views
How to explain the accelerated expansion universe
0 answers
0 votes
13 views
Why does the graph related to the luminous distance and speed represent a curve?
1 answers
0 votes
36 views
Redshift graph of Type Ia supernova: Two case
0 answers
0 votes
14 views
To determine the number of neutral hydrogen by the Saha Boltzmann equation
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0 votes
52 views
Relationship between recession velocity and scale factor
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0 votes
21 views
HYDROGEN DISTRIBUTION OF THE Galaxies
0 answers
0 votes
56 views
Flatness problem according to the value of the curvature
1 answers
0 votes
27 views
Can you explain what is Heliocentric velocity
1 answers
0 votes
78 views
Lifetime of pulsars
1 answers
0 votes
89 views
What is the scale factor $a(t)$?
0 answers
0 votes
26 views
Is the center of the supergiant star a white dwarf?
0 answers
0 votes
29 views
The distance to last scattering surface incerease?
0 answers
0 votes
27 views
Recessional velocity have to increase during dark energy era?
1 answers
0 votes
62 views
Why does starting point of graph differ?
2 answers
-1 votes
180 views
What is the meaning of $O(10^{-14})$?