Stargazing Hubble Spots Farthest Star Ever Seen

[diogenesNY]

TL;DR Summary

Hubble Spots Farthest Star Ever Seen. Pop III. Earendel. redshift 6.2

From NASA.gov

Mar 30, 2022
Record Broken: Hubble Spots Farthest Star Ever Seen.

NASA’s Hubble Space Telescope has established an extraordinary new benchmark: detecting the light of a star that existed within the first billion years after the universe’s birth in the big bang – the farthest individual star ever seen to date.

[...]

The newly detected star is so far away that its light has taken 12.9 billion years to reach Earth, appearing to us as it did when the universe was only 7 percent of its current age, at redshift 6.2. The smallest objects previously seen at such a great distance are clusters of stars, embedded inside early galaxies.

Full article:

https://www.nasa.gov/feature/goddard/2022/record-broken-hubble-spots-farthest-star-ever-seen--diogenesNY

 

[pinball1970]

Summary:: Hubble Spots Farthest Star Ever Seen. Pop III. Earendel. redshift 6.2

From NASA.gov

Mar 30, 2022
Record Broken: Hubble Spots Farthest Star Ever Seen.

NASA’s Hubble Space Telescope has established an extraordinary new benchmark: detecting the light of a star that existed within the first billion years after the universe’s birth in the big bang – the farthest individual star ever seen to date.

[...]

The newly detected star is so far away that its light has taken 12.9 billion years to reach Earth, appearing to us as it did when the universe was only 7 percent of its current age, at redshift 6.2. The smallest objects previously seen at such a great distance are clusters of stars, embedded inside early galaxies.

Full article:

https://www.nasa.gov/feature/goddard/2022/record-broken-hubble-spots-farthest-star-ever-seen--diogenesNY

That's amazing!

Will Webb be doubling up on some of these images? They both do IR

 

[diogenesNY]

That's amazing!

Will Webb be doubling up on some of these images? They both do IR

Yes! That should confirm/expand current observations. Major coolness moment: Pop III, baby!

from article:
"
Astronomers expect that Earendel will remain highly magnified for years to come. It will be observed by NASA’s James Webb Space Telescope. Webb’s high sensitivity to infrared light is needed to learn more about Earendel, because its light is stretched (redshifted) to longer infrared wavelengths due to the universe’s expansion.

“With Webb we expect to confirm Earendel is indeed a star, as well as measure its brightness and temperature,” Coe said. These details will narrow down its type and stage in the stellar lifecycle. "We also expect to find the Sunrise Arc galaxy is lacking in heavy elements that form in subsequent generations of stars. This would suggest Earendel is a rare, massive metal-poor star,” Coe said.

[...]

“With Webb, we may see stars even farther than Earendel, which would be incredibly exciting,” Welch said. “We’ll go as far back as we can. I would love to see Webb break Earendel’s distance record.” "

--diogenesNY

 

[DaveC426913]

Major coolness moment: Pop III, baby

How many Pop IIIs have been observed to-date?

 

[diogenesNY]

How many Pop IIIs have been observed to-date?

AFAIK, none have been individually identified. And this one is still speculative, but a good candidate. Still more data needed, but exciting as hell.

from article:
" If follow-up studies find that Earendel is only made up of primordial hydrogen and helium, it would be the first evidence for the legendary Population III stars, which are hypothesized to be the very first stars born after the big bang. While the probability is small, Welch admits it is enticing all the same."

--diogenesNY

 

[collinsmark]

Here's a Dr. Becky short video on the subject:



She hints at a new video with more details on this next week.

 

[Oldman too]

This seems to be where the data is coming from.
https://archive.stsci.edu/doi/resolve/resolve.html?doi=10.17909/T9SP45
https://archive.stsci.edu/doi/resolve/resolve.html?doi=10.17909/t9-ztav-b843

Speaking of data, this has some great images.
https://archive.stsci.edu/prepds/relics/

 

[pinball1970]

Here's a Dr. Becky short video on the subject:



She hints at a new video with more details on this next week.

I like Dr Becky.
This guy is pretty good too.

 

[collinsmark]

Here's that more detailed Dr. Becky video:

 

[Oldman too]

Hello all,
Along the same theme as this thread, "furthest object". I thought I'd toss this one on the pile.
"Cambridge, MA -- An international team of astronomers, including researchers at the Center for Astrophysics | Harvard & Smithsonian, has spotted the most distant astronomical object ever: a galaxy."

https://cfa.harvard.edu/news/scientists-have-spotted-farthest-galaxy-ever

https://www.eurekalert.org/news-releases/948716

https://arxiv.org/abs/2112.09141

https://arxiv.org/abs/2201.00823v2