Ideas for Fornax multi-archive demonstrations

[DavidT3]

This will act as a place for me to put ideas for multi-wavelength/multi-archive demonstration ideas, of the sort that could be good HEASARC contributions to the main set of Fornax notebooks.

These ideas will have high-energy data as a main component, plus at least one of the other archives data or catalogs as an almost equal component.

Anyone else reading this, feel free to put your ideas in here as well.

[DavidT3]

Archival Chandra investigation of AGN selected from JWST observations (both targeted and serendipitous).

Paper describing catalog is here (https://arxiv.org/abs/2601.14905)

Repo containing catalog and other bits is here (https://github.com/VirginiaLenk1/AGNs-in-eJWST)

First author appears to be a very early career researcher (masters?), so would be excellent to highlight their impressive work.

Notebook content could be the measurement of basic X-ray properties from Chandra data (as some of these are sure to be high-ish redshift).

Catalog has ~400000 rows, but 3519 uniquely named AGN in there.

I don't think any measurements of physical properties are included.

[DavidT3]

Another thought is a SPHEREx exploration of the BCGs of the SDSSRM-XCS cluster sample, if I haven't lost the list of classified BCGs forever... :S

Would have to experiment first, they might not be large enough, low redshift enough, or bright enough, to get anything interesting out of them from SPHEREx, but I strongly feel someone needs to start looking at clusters and BCGs with SPHEREx!

An alternative sample would be LoVoCCS, as those are all low redshift, and there are some whopping BCGs in there.

[DavidT3]

Something to do with Green Peas? There's that notebook I was testing Fornax with where I reproduced the X-ray green peas work that got me interested in them during my PhD. Though the other-archive component of that is currently limited to just using values derived from ground-based and HST observations that were presented in the original GPeas paper.

[DavidT3]

Would love to do some absorption studies with UV bright quasars in the background of clusters and groups, but that will involve a lot of learning, and might not be the fastest option.