Learn about stellar evolution. From protostars to main sequence stars to red giants and finally to white dwarfs, neutron stars, supernovae, and black holes. Diagrams are used to plot their life cycle.
Furthermore, the classical paradigm for the formation of single low-mass stars in well-separated, magnetized prestellar cores has been challenged on the grounds that most young stars actually belong to multiple systems and/or coherent clusters. A new paradigm based on supersonic turbulence has ...
Our H2O observations confirm that water masers can occur at the earliest phases of the formation of high luminosity stars, much before the development of an ionized region detectable in the radio continuum, and that they are closely connected with molecular outflows....
All stars have similar life stages until the star reaches the red-giant stage. As the gas in a nebula condenses, it forms a protostar. Eventually the temperature reaches roughly 15 million degrees and fusion starts. The star begins to glow brightly and contracts. It is now a star, which ...
II. From Cloud Formation to the Early Stages of Star Formation in Decaying Conditions We study the formation of giant dense cloud complexes and of stars within them by means of SPH numerical simulations of the mildly supersonic collision of ... E Vazquez‐Semadeni,GC Gomez,AK Jappsen,... ...
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...
We revisit our original papers on the burst mode of accretion by incorporating a detailed energy balance equation into a thin-disk model for the formation and evolution of circumstellar disks around low-mass protostars.Our model includes the effect of radiative cooling, viscous and shock heating,...
general influence of magnetic fields or rotation in the collapse of a cloud; that is, it is part of the general trend that yields a flattened molecular core, but probably on a size scale that decouples much of 54 its volume from direct participation in the formation of the central protostar...
Star FormationCelestial BodyA possible scenario for the evolution of the universe following the big bang at t > 10-5 sec is considered. The necessary conditions that must be present for the formation of stars and stellar systems to be possible are formulated. As a condition for the formation ...
young stars are revealed in this new image of the Cosmic Cliffs from NASA’s James Webb Space Telescope’s Near-Infrared Camera (NIRCam). The Cosmic Cliffs, a region at the edge of a gigantic, gaseous cavity within NGC 3324, has long intrigued astronomers as a hotbed...