EP 23 · 1:36:09

Follow-up — Cloud9 update: RELHIC vs. “dark galaxy” debate

From JWST's "Little Red Dots," TimeVaults, and the Dawn of Math

Episode
20/21
JWST's Little Red Dots and the early black-hole puzzle, Harvard/Broad's TimeVaults for time-series gene expression, Halaf pottery that may encode geometric sequences—and a quick Cloud9 dark-halo follow-up.
Transcript

629 words · auto-generated from the episode video

1:36:09We are going to wrap up here today with uh a followup from the Cloud9 story uh potential for a dark matter gas cloud from last episode. I'll let you take it away here. Yeah, I mean we at the end of the last episode, we asked our audience, what do you guys think caused the name Cloud9? And you know, uh, some of the authors of the episode that we sent the link to, they actually made it that far as well, >> which is great. >> And they were asking, they actually let us know, >> yes, >> what is the story behind the name Cloud9? So this particular response

1:36:51comes from Alejandro Lombbe, but actually most of the authors of that study responded with very similar takes. I'll just sort of paraphrase how he put it. So back in February 2023, he read a paper about a potential dark galaxy candidate that was identified by the fast telescope, which is the big Aerosibo like telescope in China. And the authors were initially unaware of Alejandro's earlier paper where he had described this idea of relics. Yes, >> he was one of the original authors of that relics paper being like, "Hey, there should be something like this out there." So, he cloud that he emailed them about turned out to be a galaxy. So, when you point an optical telescope, you see stars and

1:37:31it's just a galaxy. Then the same fast guys, >> yes, >> in China, they look at this object, Cloud9. And Cloud9 was named Cloud9 because it was the ninth object that they had seen in that direction. Okay. So, it was just the Cloud9. And in China, there's no sort of cultural meaning for the phrase Cloud9. The Fast Guys then emailed Alejandro back being like, "Hey, this could be a new candidate." And this was the ninth cloud in their radio survey. The authors were aware of Alejandro and then they sort of teamed together. They went looked at the analysis from the VA. the VA actually could pinpoint where Cloud9 was because the the fast

1:38:12telescope is this giant thing that's just sort of like stuck to the Earth, right? So, it doesn't have very good angular resolution on where this thing is coming from. VA could then pinpoint and be like, "It's actually right there." Once you have those coordinates, then you can go to the Hubble guys at NASA and be like, "Hey, look, I I actually know where it is and I'd really like to look at it." The Hubble guys gave the authors some time and that's where we get that paper from Cloud9. They kept the name because you know if it turns out that Cloud9 is a relic then the authors would be on Cloud9. So they they kept that name for that reason but that's that's that's what's behind it which is which is very cool. >> We always love uh naming conventions on this show. Yeah.

1:38:53>> Um and it was great to get outreach from everyone on the team. >> Yeah, that was awesome. If you if we happen to cover if you're listening now and you happen to be um in a lab on a research team having had a story by us covered at some point and there is a correction, you can always make sure you reach out to us to to uh facilitate that correction in a future episode. Um we do our best to cover it as accurately as possible, but there's no one better than the experts. And so we are really grateful um that the team for the relics paper uh were just so uh enthusiastic in providing feedback and loving the coverage.

From the episode
  1. EP 23

    JWST's "Little Red Dots," TimeVaults, and the Dawn of Math

    Little Red Dots, TimeVaults biology, and ancient math in Halaf pottery.

    JWST's Little Red Dots and the early black-hole puzzle, Harvard/Broad's TimeVaults for time-series gene expression, Halaf pottery that may encode geometric sequences—and a quick Cloud9 dark-halo follow-up.