Best way to get specturm of point source
Posted: Tue Dec 01, 2015 3:18 am
Hello
I have a field with several point sources in it and wish to find the spectrum of each.
I've imaged up with the desired frequency resolution and done a continuum subtraction.
At the moment I've loaded the cube up in CASA viewer and used the ellipse tool for each object to produce a spectrum.
Is there a more direct method in MIRIAD? I would suspect that imspec would do it (by specifying the pointing offset and the size of the source?) Does imspec deal with primary beam weighting? would there be any benefits from either approach or is there a better way to do it?
Thanks
k
I have a field with several point sources in it and wish to find the spectrum of each.
I've imaged up with the desired frequency resolution and done a continuum subtraction.
At the moment I've loaded the cube up in CASA viewer and used the ellipse tool for each object to produce a spectrum.
Is there a more direct method in MIRIAD? I would suspect that imspec would do it (by specifying the pointing offset and the size of the source?) Does imspec deal with primary beam weighting? would there be any benefits from either approach or is there a better way to do it?
Thanks
k