A draft paper which came out this past month reported JWST observation of coordinated star birth and offered confirmation of our understanding of the process.
Why are (almost) all the protostellar outflows aligned in Serpens Main?
In it, they find evidence tying the orientations of protostars to the clouds from which they formed. Excerpts below…
aligned protostars, which seem to be at similar evolutionary stages based on their outflow dynamics, formed at similar times with a similar spin inherited from a local cloud filament.
One potential tracer of the accretion flow history of star-forming filaments and their cores on parsec scales is whether the angular momentum vectors of stars in a cluster are correlated with each other, and with direction of the magnetic field along their natal cloud filament.
Jet material ejected from protostellar systems may contain sufficient momentum to reach distances comparable to the entire cloud, giving rise to spectacular “parsec-scale” outflows.
While protostars have been descibed in theory and observation for decades, they are challenging to inspect in detail, because by definition they are at the center of a collapsing cloud, and just as clouds can hide the sun, they generally hide young stars. This has allowed YEC to take the stance that since you cannot directly see it and God’s creative work is done, nebulas only disperse and stars cannot form. Have you ever seen a star being born? they ask.
Well yes, we have seen stars form for some time, but the JWST observes at spectrums that penetrate gas clouds to view unprecedented detail. And most notable are outflows.
Outflows are the jets that form perpendicular to the planar orientation of infalling accretion. There are two takeways so far as bears on YEC denial of star formation. One, is that there simply cannot be jets without infall. The presence of jets is definitive that there is material falling inward. Two, is that infalling can only be associated with a forming star - a mature star exerts ratiation pressure to drive futher material outwards, and such bubbles are easy to spot in Hubble pictures such as the pillars of creation. If there are jets, stars form. There are jets.