Researchers observed the cool evolved star ζ Aurigae A as it orbited its main-sequence companion in an effort to understand how ultraviolet radiation from the main-sequence star impacts the evolved star’s atmosphere.
New research suggests that light echoes from the reflection of stellar flares off of circumstellar debris disks should be detectable with high-speed optical systems for stars in the solar neighborhood.
New imaging reveals a pattern of ionization in the Southern Crab Nebula that cannot be generated by photoionization by a central source and may instead indicate ionization at stellar-wind-generated shocks.
Observations of a high-mass star-forming region suggest that the variability of the region was caused by the propagation of an inside-out heatwave, which may indicate a burst of accretion.
The simulated satellite galaxy distribution generally does a poor job of tracing the mean density of the host galaxy, but the degree of agreement between the two quantities is dependent upon the color of the host galaxy.
Observations reveal one of the fastest jets ever detected from a planetary nebula as well as variability that is likely associated with the presence of a low-mass binary companion to the central star.