Closed jkrick closed 9 months ago
It would be nice to think about how this could eventually be turned into a Fornax demo notebook. Fornax demo notebooks need to:
It is ok if the notebook reproduces work already published, ie., a good notebook would be one that tries to reproduce some seminal work, or expand upon some previous work. But, of course, original ideas are also good.
No one will judge the science case, so the ties to all three archives can be tenuous. Real science doesn't have a three archive requirement.
Lastly, I think it is important to be something you are actually interested in so that the work is more fun and might lead to a publication, which is a win win for all.
Vandana suggested it would look good if there was Euclid & DESI and/or SPHEREX & SDSS data in the spectroscopy use case.
Asterisk indicates NASA.
IRSA:
MAST:
SDSS:
HEASARC They don't really have "spectra". But could as ancillary data, as we did with IceCube in the lightcurve use case.
NOIRLAB Spectral from the SPARCL archive
CADC CADC Canadian data center, has a nice search interface for many facilities (Gemini, CFHT, HST, JWST, etc)
Long term, among some COSMOS folks we have an NSF and ADAP program to re-reduce all spectra that exist on COSMOS. We so far focussed on Keck and Subaru. This still takes a while and in the end we could store them at IRSA. This would give us the possibility to use optimally reduced and calibrated spectra on COSMOS.
We could follow the same theme as for the lightcurve notebook: Create a tool to query spectra in the different archives for a give position on the sky. The difference is that spectra are sparse, so there is not much overlap. The biggest overlap is likely in the famous fields. For example, COSMOS is covered by Keck, Spitzer, IRTF, SPHEREx, Euclid, HST, JWST, and SDSS. Alternatively, we could think of SDSS+Spitzer as pair (see below). Another difficulty is that some of the spectra are not (or barely/badly) reduced. The reduction of the retrieved raw spectra would need to be included in such a notebook. The notebook would conclude with providing UV to IR spectra for a given source.
We can use this as preparation for Euclid and SPHEREx. Use for now the Sloan, DESI, etc. We need to know these data and know how to deal with this before the large NASA missions (Euclid / SPHEREx) start.
Think of science that can benefit from combining spectra at different wavelengths.
We discussed the above topcis. A summary is below
Created a new directory on GitHub and added a notebook template that we can use: https://github.com/fornax-navo/fornax-demo-notebooks/tree/spectroscopy_faisst_Dec723
Updates:
Updates:
Afaisst: Currently working with Thomas Lai on JWST spectrum use case. Once that is done, how to generalize?