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ELSA: Euclid Legacy Science Advanced analysis tools
@elsa-euclid.bsky.social
Pushing the boundaries of spectroscopy with the European Space Agency's Euclid space telescope. Account run by @stephenserjeant.bsky.social and the ELSA team elsa-euclid.github.io/
111 followers34 following42 posts
EEelsa-euclid.bsky.social

Our answser: we'll try pattern matching (like Gravity Spy) & image segmentation for spectra (like GZ Clump Scout).

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EEelsa-euclid.bsky.social

Belatedly, here are a few key slides from the Dissemination, Engagement and Citizen Science talk. Besides showing our social media comms channels, we explained why we need & use crowdsourced data mining (citizen science)

Title slide: Work package 5: Dissemination, Engagement and Citizen Science.
Slide saying: CITIZEN SCIENCE IS NOT OUTREACH
Provocative question: What would you like 100000 people to do for you?
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EEelsa-euclid.bsky.social

Some beautiful logo options! Not yet proper to share in public, but excellent work by a graphic artist who will work up some final options for voting on. Finally our first formal ELSA General Assembly!

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EEelsa-euclid.bsky.social

I'll put some summaries of my talk in here later, but first our next talk is Viola Allevato on some options for our ELSA logo (our current snowflake icon is just provisional)

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EEelsa-euclid.bsky.social

First talk after lunch is me @stephenserjeant.bsky.social to talk about our Dissemination, Engagement and Citizen Science work package, so I won't live-skeet!

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EEelsa-euclid.bsky.social

Our data(+code?) needs to be Findable, Accessible, Interoperable and Reusable (FAIR). GitHub is great for developing, testing & maintaining code, but connect to Zenodo (one button!) to publish FAIR code. Our first draft DMP is due in June 2024...

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EEelsa-euclid.bsky.social

Giulia Caldoni, Data Steward in the Research Services Division in Bologna, now briefing us on the open science requirements and our Data Management Plan deliverable. Publication embargos are no longer allowed in Horizon. Peer-reviewed papers on arXiv are ok; APCs not funded in Horizon. A&A OA is ok.

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EEelsa-euclid.bsky.social

Some catastrophic photo-z failures in template fitting but these are reduced with ML. Also tested on a COSMOS-like reference sample. Lots of multi-wavelength data for EDF from MeerKAT/LOFAR(2.0) to VISTA,HSC,Spitzer can help with deblending - could use GANs?

For most of the 15000 deg' of the EWS, photo-¡s recovery will be optimal for cosmology.
Things are more of a mixed bag for stellar masses and SFRs; to a certain degree, we can confide in recovered stellar
masses, not SFRs, at least for the whole catalog of detected sources.
Better confidence could be put in bright sources whose photo- is almost perfectly recovered (or with spec-z available),
but even in the most ideal scenario, those nine photometric bands yield at least 8% catastrophic outliers in SFR.
For the EDE, the recovered SFRs still look worrisome, but the fields will undoubtedly rely on a wealth of ancillary or
forthcoming multiwavelength observations in those domains where we can obtain better constraints (i.e., sub-mm, radio)

Deblending to Euclid resolution has to be done. Within ELSA, we want to test the performance of super-resolution GANs to achieve this task, at least at the Proof of Concept level.
Improvements to the EWS - outlier analysis
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EEelsa-euclid.bsky.social

Next up is Andrea Enia, with a science talk on recovering of galaxy physical properties with template fitting and ML (Euclid paper in prep). They used MAMBO to simulate four Euclid surveys (Wide, Deep, calib16 and calib25), fitted with templateS, deep NN, CatBoost single+chained regressors, & NNPZ

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ELSA: Euclid Legacy Science Advanced analysis tools
@elsa-euclid.bsky.social
Pushing the boundaries of spectroscopy with the European Space Agency's Euclid space telescope. Account run by @stephenserjeant.bsky.social and the ELSA team elsa-euclid.github.io/
111 followers34 following42 posts