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 https://elsa-euclid.github.io/
Reposted by ELSA: Euclid Legacy Science Advanced analysis tools
Let me tell you, our officially-not-an-X-ray-telescope #ESAEuclid did notice this flare. Very much so. A gazillion cosmic ray hits, plus a shadow of hardware where the instruments aren't fully X-ray shielded.
I mean this was the 39th (?) strongest flare in 30 years.
I mean this was the 39th (?) strongest flare in 30 years.
November 11, 2025 at 7:05 PM
Let me tell you, our officially-not-an-X-ray-telescope #ESAEuclid did notice this flare. Very much so. A gazillion cosmic ray hits, plus a shadow of hardware where the instruments aren't fully X-ray shielded.
I mean this was the 39th (?) strongest flare in 30 years.
I mean this was the 39th (?) strongest flare in 30 years.
Many other @ec-euclid.bsky.social papers being released this week, including by Daniela Vergani and team on discoveries of galaxies with unusual emission lines - here's an explainer by @stephenserjeant.bsky.social 🧪🔭
!["Euclid's ability to cover such a large area of sky makes it a marvellous place to find rare objects that often could not be discovered in any other way. Euclid also doesn't just take images; its spectroscopic instrument also splits light up like a rainbow to diagnose how redshifted (how far away) each galaxy is and the conditions inside each galaxy. In this paper [Vergani et al] we used Euclid's spectroscopic instrument to unveil a population of rare galaxies with stronger ionizing radiation inside them, perhaps caused by a curious, unusual history of star formation that's assembling the stellar masses of galaxies. Unpicking this will be the subject of a lot of future research, and this is just the tip of the iceberg of the rare object discoveries awaiting us with Euclid."](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:rqzhexkrr5iazknlluqozsw7/bafkreibxkye62qpn3cwcxxt4z2bk6eq3c5aui4qyw3pz3xckbwunzmmuxq@jpeg)
November 7, 2025 at 5:59 PM
Many other @ec-euclid.bsky.social papers being released this week, including by Daniela Vergani and team on discoveries of galaxies with unusual emission lines - here's an explainer by @stephenserjeant.bsky.social 🧪🔭
arXiv version of the paper: arxiv.org/abs/2506.15644
Candidate Dark Galaxy-2: Validation and Analysis of an Almost Dark Galaxy in the Perseus Cluster
Candidate Dark Galaxy-2 (CDG-2) is a potential dark galaxy consisting of four globular clusters (GCs) in the Perseus cluster, first identified in Li et al. (2025) through a sophisticated statistical m...
arxiv.org
June 20, 2025 at 6:08 PM
arXiv version of the paper: arxiv.org/abs/2506.15644
Here's a link to the academic paper (free, open access): iopscience.iop.org/article/10.3...
Candidate Dark Galaxy-2: Validation and Analysis of an Almost Dark Galaxy in the Perseus Cluster - IOPscience
Candidate Dark Galaxy-2: Validation and Analysis of an Almost Dark Galaxy in the Perseus Cluster, Li, Dayi (David), Liu, Qing, Eadie, Gwendolyn M., Abraham, Roberto G., Marleau, Francine R., Harris, William E., van Dokkum, Pieter, Romanowsky, Aaron J., Danieli, Shany, Brown, Patrick E., Stringer, Alex
iopscience.iop.org
June 16, 2025 at 4:14 PM
Here's a link to the academic paper (free, open access): iopscience.iop.org/article/10.3...
Thank you :)
June 16, 2025 at 9:36 AM
Thank you :)
Black Holes www.youtube.com/watch?v=5p3k...
Black Holes - 60 Second Adventures in Astronomy (12/14)
YouTube video by OpenLearn from The Open University
www.youtube.com
June 16, 2025 at 9:33 AM
Black Holes www.youtube.com/watch?v=5p3k...
Special Relativity www.youtube.com/watch?v=mU04...
Special Relativity - 60 Second Adventures in Astronomy (10/14)
YouTube video by OpenLearn from The Open University
www.youtube.com
June 16, 2025 at 9:31 AM
Special Relativity www.youtube.com/watch?v=mU04...
Dark Energy (featuring the @ec-euclid.bsky.social telescope) www.youtube.com/watch?v=7Yc2...
Dark Energy - 60 Second Adventures in Astronomy (9/14)
YouTube video by OpenLearn from The Open University
www.youtube.com
June 16, 2025 at 9:29 AM
Dark Energy (featuring the @ec-euclid.bsky.social telescope) www.youtube.com/watch?v=7Yc2...
Dark Matter (the stuff that creates most of the gravitational lensing signals seen by @ec-euclid.bsky.social )
www.youtube.com/watch?v=C8ZO...
www.youtube.com/watch?v=C8ZO...
Dark Matter - 60 Second Adventures in Astronomy (8/14)
YouTube video by OpenLearn from The Open University
www.youtube.com
June 16, 2025 at 9:28 AM
Dark Matter (the stuff that creates most of the gravitational lensing signals seen by @ec-euclid.bsky.social )
www.youtube.com/watch?v=C8ZO...
www.youtube.com/watch?v=C8ZO...
Supernovae (and watch for the scholarly pronounciation of the word by a history graduate, unlike that of astronomers)
www.youtube.com/watch?v=M7xT...
www.youtube.com/watch?v=M7xT...
Supernovae - 60 Second Adventures in Astronomy (2/14)
YouTube video by OpenLearn from The Open University
www.youtube.com
June 16, 2025 at 9:24 AM
Supernovae (and watch for the scholarly pronounciation of the word by a history graduate, unlike that of astronomers)
www.youtube.com/watch?v=M7xT...
www.youtube.com/watch?v=M7xT...