I feel like the title is a little misleading. It says it like they already confirmed to have found generation 3 stars when in reality the stars are only theorized and finding them is the goal of the project, correct?
The title says Webb used the halo to detect them, and in the first comment I elaborated and noted that although the observations consist with PopIII stars, there's another, less favoured scenario.
JADES team, who studies the early universe, presented their results for using the distant galaxy GN-z11's halo in order to detect the first generation of start in the early universe.
Text from UCLA article: after the Big Bang, the universe expanded and cooled sufficiently for hydrogen atoms to form. In the absence of light from the first stars and galaxies, the universe entered a period known as the cosmic dark ages.
With an age of ~10 Myr, the TW Hya association (TWA) is the youngest known stellar population within 100 pc. Two substellar members of TWA were discovered through that work, 2MASSW J113951-3159211 and 2MASSW J1207334-393254, which were later assigned the designations of TWA 26 and 27, respectively.
Webb analyzed the atmosphere of an ultrahot gas giant and mapped its temperatures. Despite scorching heat (nearly 5000 F or 2700 C), WASP-18 b has small amounts of atmospheric water — precisely measured due to Webb's sensitivity.
Is that cloud what creates the star? Does that mean it will suck up all of the cloud and will be bigger than now or will it push that cloud away from itself?
According to the results by GLASS-JWST team, based on JWST data, they have discovered an early galaxy-assembly from ~900 million years after The Big Bang. This was done by measuring the abundance of carbon relative to oxygen in the galaxy.
Starting at May 18th afternoon, JWST imaged the barred-spiral galaxy NGC-3351 and its core using both NIRCam and MIRI for ~3 hours, producing 268 images.
Uhm maybe a dumb question but what produces an empty image? Considering there is at least cosmic background radiation literally everywhere, is the exposure just too low, not the right wavelengths, or…?
Some filters are irrelevant to us as the .jpg image shows nothing but white or black flat image, but the .fits contains more data for astronomers, such as spectrography.
Using Webb’s NIRSpec (Near-Infrared Spectrograph) instrument, astronomers have confirmed gas – specifically water vapor – around a comet in the main asteroid belt for the first time, indicating that water ice from the primordial solar system can be preserved in that region. However, the successful detection of water comes with a new puzzle: unlike other comets, Comet 238P/Read had no detectable carbon dioxide.
Using Webb’s NIRSpec (Near-Infrared Spectrograph) instrument, astronomers have confirmed gas – specifically water vapor – around a comet in the main asteroid belt for the first time, indicating that water ice from the primordial solar system can be preserved in that region. However, the successful detection of water comes with a new puzzle: unlike other comets, Comet 238P/Read had no detectable carbon dioxide.
According to the press release, "astronomers used NASA’s James Webb Space Telescope to image the warm dust around a nearby young star, Fomalhaut, in order to study the first asteroid belt ever seen outside of our solar system in infrared light. But to their surprise, the dusty structures are much more complex than the asteroid and Kuiper dust belts of our solar system."
According to the press release, "astronomers used NASA’s James Webb Space Telescope to image the warm dust around a nearby young star, Fomalhaut, in order to study the first asteroid belt ever seen outside of our solar system in infrared light. But to their surprise, the dusty structures are much more complex than the asteroid and Kuiper dust belts of our solar system."
I feel like the title is a little misleading. It says it like they already confirmed to have found generation 3 stars when in reality the stars are only theorized and finding them is the goal of the project, correct?
The title says Webb used the halo to detect them, and in the first comment I elaborated and noted that although the observations consist with PopIII stars, there's another, less favoured scenario.
JADES team, who studies the early universe, presented their results for using the distant galaxy GN-z11's halo in order to detect the first generation of start in the early universe.
Distance? Light travel and comoving
When the light started traveling to us, it was 13.3 billion light years away. Right now it much more.
Text from UCLA article: after the Big Bang, the universe expanded and cooled sufficiently for hydrogen atoms to form. In the absence of light from the first stars and galaxies, the universe entered a period known as the cosmic dark ages.
I removed the last post due to spelling mistake.
With an age of ~10 Myr, the TW Hya association (TWA) is the youngest known stellar population within 100 pc. Two substellar members of TWA were discovered through that work, 2MASSW J113951-3159211 and 2MASSW J1207334-393254, which were later assigned the designations of TWA 26 and 27, respectively.
Webb analyzed the atmosphere of an ultrahot gas giant and mapped its temperatures. Despite scorching heat (nearly 5000 F or 2700 C), WASP-18 b has small amounts of atmospheric water — precisely measured due to Webb's sensitivity.
More info & images at
Is that cloud what creates the star? Does that mean it will suck up all of the cloud and will be bigger than now or will it push that cloud away from itself?
This is a jet created by the "creation" process of the star, the star itself is on the top right.
Earlier today Webb has taken images of the newborn star HH46 using NIRCam. HH46 is located about 1,470 light-years away from us.
I'm a complete noob, can someone draw a circle around the star in question? Is it the cloud or one of the obvious stars?
This image might be more suitable (as I mentioned, when I created the post not all the images have been received)-
Which star is the one mentioned in the title?
The one with the jets coming out of him, as in this image-
According to the results by GLASS-JWST team, based on JWST data, they have discovered an early galaxy-assembly from ~900 million years after The Big Bang. This was done by measuring the abundance of carbon relative to oxygen in the galaxy.
What kind of chaos ?
Spiraling gas and stars around the area where the supermassive black hole lies.
All I have to say is thank you to Dr Janice Lee and her team for making all of her proposal data public from the get go!
Indeed!
Starting at May 18th afternoon, JWST imaged the barred-spiral galaxy NGC-3351 and its core using both NIRCam and MIRI for ~3 hours, producing 268 images.
Yesterday Webb took 86 non-empty images of the deep universe as part of COSMOS-Web project, which have 3 main goals:
Uhm maybe a dumb question but what produces an empty image? Considering there is at least cosmic background radiation literally everywhere, is the exposure just too low, not the right wavelengths, or…?
Some filters are irrelevant to us as the .jpg image shows nothing but white or black flat image, but the .fits contains more data for astronomers, such as spectrography.
Yesterday, JWST took 86 images of the deep universe as part of COSMOS-Web project, which have 3 main goals:
TL;DR - JWST finds water vapor in a main-belt comet.
Using Webb’s NIRSpec (Near-Infrared Spectrograph) instrument, astronomers have confirmed gas – specifically water vapor – around a comet in the main asteroid belt for the first time, indicating that water ice from the primordial solar system can be preserved in that region. However, the successful detection of water comes with a new puzzle: unlike other comets, Comet 238P/Read had no detectable carbon dioxide.
TL;DR - JWST finds water vapor in main-belt comet.
Using Webb’s NIRSpec (Near-Infrared Spectrograph) instrument, astronomers have confirmed gas – specifically water vapor – around a comet in the main asteroid belt for the first time, indicating that water ice from the primordial solar system can be preserved in that region. However, the successful detection of water comes with a new puzzle: unlike other comets, Comet 238P/Read had no detectable carbon dioxide.
Above is MIRI calibration image titled "MRS External Flatfield" of SMP-LMC-058.
According to the press release, "astronomers used NASA’s James Webb Space Telescope to image the warm dust around a nearby young star, Fomalhaut, in order to study the first asteroid belt ever seen outside of our solar system in infrared light. But to their surprise, the dusty structures are much more complex than the asteroid and Kuiper dust belts of our solar system."
This is the original size image released by ESA, NASA and STScI.
So the strangely shaped black object in the middle is Formalhaut? Or is it some weird shape created by the lens and imaging?
The article doesn't say but I guess it's some kind of coronagraph.
According to the press release, "astronomers used NASA’s James Webb Space Telescope to image the warm dust around a nearby young star, Fomalhaut, in order to study the first asteroid belt ever seen outside of our solar system in infrared light. But to their surprise, the dusty structures are much more complex than the asteroid and Kuiper dust belts of our solar system."