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Apashanka Das's user avatar
Apashanka Das's user avatar
Apashanka Das's user avatar
Apashanka Das
  • Member for 5 years, 5 months
  • Last seen more than 2 years ago
3 votes
1 answer
487 views

Flux in luminosity distance

2 votes
1 answer
261 views

Perturbation to the flat space metric

1 vote
2 answers
557 views

Redshift at the beginning of current expansion epoch?

1 vote
1 answer
87 views

Why only $\omega=-1$ is taken to explain accelerated expansion of the universe and named dark energy?

1 vote
0 answers
23 views

Coherence length of velocity field in cosmology

1 vote
2 answers
566 views

Proper distance in cosmology

0 votes
0 answers
33 views

Question regarding displacement and volume enclosed along a fixed trajectory

0 votes
1 answer
66 views

Is $\hat t$ orthogonal to the tangent space of the spatial hypersurface?

0 votes
1 answer
468 views

Orthogonal hypersurface to timelike vectors

0 votes
1 answer
130 views

Volume expansion rate

-1 votes
1 answer
477 views

Einstein-Hilbert action and Lagrangian density for vacuum Ricci scalar

-2 votes
1 answer
88 views

Dark energy and dark matter difference