The formation of a protostar is accompanied by a structure that consists of an accretion disk, a bipolar outflow, and a surrounding envelope. The disk is at the stage of separation into protoplanetary rings. The disk plane is warped like the brim of a hat. The disk is 27 AU in diameter...
The flattened disk shape of the Galaxy suggests that it formed through a process similar to the one that leads to the formation of a protostar (see The Birth of Stars and the Discovery of Planets outside the Solar System). Building on this idea, astronomers first developed models that ...
Context. The seeds of the first supermassive black holes may result from the direct collapse of hot primordial gas in $\\gtrsim 10^4$ K haloes, forming a supermassive or quasi-star as an intermediate stage. Aims. We explore the formation of a protostar resulting from the collapse of ...
Let’s discuss what happens in regions of star formation by considering a nearby site where stars are forming right now. One of the best-studied stellar nurseries is in the constellation of Orion, The Hunter, about 1500 light-years away (Figure 2). The pattern of the hunter is easy to r...
cloud can collapse under its own gravitational pull. As the cloud collapses the core begins to heat up. This is called a protostar, and what will one day become a star. The end of a star occurs when a star has fused all of its hydrogen and the star collapses and the…show more ...
Around the protostar, a large flat discof dust, rock, and ice, which would become the planets, moons, and asteroids in the solar system, collected.This initial stage in the formation of the solar system lasted approximately 100,000 years. Next,the planets formed through the process known as...
This rapid infall suggests that sufficient mass will collapse into the supermassive protostar before it reaches main-sequence. Extended Data Fig. 8 Thermal and turbulent support of collapsing clumps. a–d, Same as Extended Data Fig. 3, but for the clumps in the LWH (a) and the MMH (b–...
Dunham, Kinematic analysis of a protostellar multiple system: measuring the protostar masses and assessing gravitational instability in the disks of L1448 IRS3B and L1448 IRS3A. Astrophys. J. Lett. 907(1), 10 (2021). https://doi.org/10.3847/2041-8213/abcc02. arXiv:2011.08293 [astro-ph....
Birth of a “Masquerading Monster” Previous ALMA research had shown that within the core of BYF 73 lies a “masquerading monster:” a single protostar, MIR 2, which is about 1,300 times the Sun’s mass and responsible for about half of the region’s power output. These ALMA values pla...
These detections establish that benzonitrile is not unique to TMC-1; rather, aromatic chemistry appears to be widespread throughout the earliest stages of star formation, probably persisting at least until the initial formation of a protostar. The abundance of benzonitrile far exceeds predictions from...