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Rian
  • Member for 6 years, 4 months
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6 votes
1 answer
268 views

How to know that the 21cm Hydrogen line is the actual emission and not any other redshifted line?

4 votes
1 answer
237 views

What is the difference between emission line and recombination line?

4 votes
1 answer
331 views

Why dust is optically thin in Far Infrared wavelengths?

4 votes
1 answer
502 views

Why Free-Free emission is regarded as Thermal emission?

3 votes
1 answer
335 views

What determines the temperature of a white dwarf?

3 votes
1 answer
150 views

What are IRAS sources?

3 votes
1 answer
216 views

What are infall signatures in stars?

3 votes
3 answers
166 views

Why does the gas cloud collapse in regions of high density?

2 votes
2 answers
151 views

What is the relation between Kelvin-Helmholtz timescale and free-fall timescale?

2 votes
0 answers
2k views

What is meant by ionization states?

2 votes
3 answers
1k views

How to calculate the pixel size and beam size of an image?