All Questions
4
questions
2
votes
0
answers
68
views
Using prospector for jwst data
I am working with JWST data. I want to estimate the redshift of the sources I have identified with SEXtractor with the help of prospector. Can somebody guide me in this?
- 51
5
votes
1
answer
408
views
How to remove redshift from galaxy spectra in Python?
Hello I extracted a spectrum from the central region of the 2D spectrum of the major axis from NGC 4697 (I just took a central row in the 2D data set, see this question for more information: How to ...
- 849
2
votes
2
answers
599
views
How to do logarithmic wavelength binning (in Python) in order to find redshift?
In Tonry and Davis (1979), p.1513, they formulated a cross-correlation method for extracting velocity redshifts:
Theory of Correlation Analysis
a) Introduction
Let $g(n)$ be the spectrum of a galaxy ...
- 43
5
votes
2
answers
926
views
Comoving distance between two points [(RA1, Dec1, z1) and (RA2, Dec2, z2)]
I have Redshift (z), RA and Dec positions for two points in a galaxy catalogue (say P1 = [<...
- 151