All Questions
5
questions
1
vote
1
answer
103
views
By what experiment is the vacuum energy density actually measured?
I have heard that the actual vacuum energy density which is up to 120 orders smaller than the predicted QED value can be measured in experiments or cosmological observations?
What are these ...
- 4,170
0
votes
1
answer
63
views
How do we obtain matter-lambda curve?
I have 400 supernovas type Ia's distance modulus and its error and redshift.
how can I obtain an elliptic curve like the one in image for my datas?
where did that elliptic came from?
- 75
1
vote
1
answer
212
views
Precision in cosmological constant
The observed cosmological constant, what is its precision? How precise do we know is it not a fluke or misinterpretation of cosmological data?
- 6,611
1
vote
1
answer
591
views
To what accuracy do we know the value of the cosmological constant?
The Wikipedia article just says that the cosmological constant
"is measured to be on the order of $10^{−52} \text{ m}^{−2}$," but the only citation goes all the way back to 2004. What is $\Lambda$'s ...
- 48.4k
4
votes
2
answers
444
views
Cosmological triangle with PLANCK results
Is there an updated version of the cosmological triangle with recent PLANCK results included?
- 51