Recent three-dimensional computer simulations suggest thatneutrinos— very low mass subatomic particles — made in the creation of the neutron star drive bubbles that speed away from the center of the explosion. These bubbles continue driving the shock wave forward to trigger the supernova explosi...
These superenergized particles cannot travel those great distances without slowing down significantly. So perhaps their origins are much closer to home. And perhaps their origins are much more exotic than a mere cosmic explosion. In a recent paper that has not yet been peer-re...
arguably, unproven assumptions. For example, cosmic acceleration (and hence dark energy) was originallydiscoveredin 1998 by looking at the receding light of distant supernovae, yet the precise mechanism behind a supernova explosion itself is unknown. Few doubt the dark-energy interpretation ...
Exoplanet nurseries around infant stars can be much smaller than expected: 'It is astonishing' This astronomer found a sneaky extra star in James Webb Space Telescope data Scientists find rare double-star spiral doomed for supernova explosion...
Betelgeuse is known for being a type of "variable star," meaning its brightness fluctuates, at times dramatically, as it inches toward an eventual grandiose collapse and stellar explosion, known as a supernova. In recent years, the star has grown noticeably brighter....
Kobayashi, T., Komori, Y., Yoshida, K., Nishimura, J., 2004. The most likely sources of high-energy cosmic-ray electrons in supernova remnants. Astrophys. J. 601, 340-351. http://dx.doi.org/10.1086/380431. arXiv:astro-ph/0308470....
And for a star to go supernova, it must be quite massive — at least eight times the size of the sun. But for a supernova to produce the strongest type of gamma-ray burst, the star must be 30 to 40 times the size of the sun. This recent powerful detection came from such a ...
Due to its mass, this white dwarf might evolve further into a neutron star, which is almost as dense as a black hole and usually forms from a supernova explosion. “This is highly speculative, but it’s possible that the white dwarf is massive enough to further collapse into a neutron ...
“When we combine observations from NASA’s space telescopes across different wavelengths of light, we broaden our understanding of the universe,” said Mark Clampin, Astrophysics Division director at NASA, in astatement. “The Pillars of Creation region continues to offer us new insights that hone...
recent site of massive star formation within 30 ′′ , making a second generation of massive stars in its vicinity rather unlikely. 4 Figure 2. Local luminosity functions for 16 randomly chosen test fields (8 closer to the core and 8 farther out than the “sphere”) and the emission li...