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Rian
  • Member for 7 years, 11 months
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6 votes
1 answer
313 views

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

4 votes
1 answer
824 views

What is the difference between emission line and recombination line?

4 votes
1 answer
1k views

What determines the temperature of a white dwarf?

4 votes
1 answer
660 views

Why Free-Free emission is regarded as Thermal emission?

4 votes
1 answer
433 views

Why dust is optically thin in Far Infrared wavelengths?

4 votes
3 answers
566 views

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

3 votes
0 answers
2k views

What is meant by ionization states?

3 votes
1 answer
153 views

What are IRAS sources?

3 votes
1 answer
243 views

What are infall signatures in stars?

2 votes
2 answers
685 views

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

2 votes
3 answers
2k views

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

1 vote
0 answers
64 views

What do negative values on bright sources in TIRSPEC mean?

0 votes
0 answers
30 views

How to obtain the distance to a particular stellar cluster from GAIADR3 data? [closed]