White dwarfs are the dense cores left behind when stars exhaust their fuel and collapse. They are Earth-sized stellar embers weighing typically half as...
In a 2023 paper, Professor Heino Falcke and his colleagues at Radboud University showed that not only black holes, but also all other objects in the Universe...
Astrophysicists have found that a recently-discovered transient radio source, ILT J110160.52+552119.62, whose roughly minute-long pulses arrive with a...
Astronomers may finally have settled the question of what is causing highly energetic X-rays from WD 2226-210, a white dwarf star located at the center...
White dwarfs may present amenable environments for life on planets formed within or migrated to their habitable zones, generating warmer surface environments...
Using a catalog of 26,041 white dwarfs observed by the Sloan Digital Sky Survey, astronomers have confirmed a long-predicted effect in these ancient ultradense...
A neutron star in the X-ray binary system 4U 1820-30 spins 716 times per second, making it one of the fastest-spinning objects ever observed, according...
Astronomers using the NASA/ESA Hubble Space Telescope have made a unique timelapse of R Aquarii’s dynamic behavior from observations spanning from 2014...
Astronomers using the Keck II 10-m telescope have discovered evidence for an Earth-mass planet and a brown dwarf orbiting a white dwarf star. The planet...
With an estimated distance of 140 parsecs (457 light-years), the L-subdwarf star CWISE J124909+362116.0 (J1249+36 for short) has a total speed of at least...
Astronomers have proposed a new theory that explains why a puzzling population of white dwarf stars stopped cooling for at least eight billion years.
This...
Dynamically active planetary systems orbit a significant fraction of white dwarf stars. These stars often exhibit surface metals accreted from debris disks....
WD 0032-317B, a brown dwarf orbiting around the hot, low-mass white dwarf WD 0032-317, is estimated to have a surface temperature of about 8,000 K and...
ZTF J203349.8+322901.1, nicknamed Janus after the two-faced Roman god of transition, is a transitioning white dwarf with two faces: one side of its atmosphere...
White dwarf pulsars include a rapidly spinning, burnt-out stellar remnant called a white dwarf, which lashes a companion red dwarf with powerful beams...
The detection of the Type Ia supernova SN 2020eyj at radio wavelengths show that the exploded white dwarf had a helium-rich companion.
An artist’s rendition...
Supernova (SN) 185 occurred in 185 CE in the direction of Alpha Centauri, between the constellations of Circinus and Centaurus, and remained visible to...
In November 2019, the nearby single, isolated white dwarf LAWD 37 aligned closely with a distant background source and caused a so-called microlensing...
At least three, and possibly four, progenitor stars crafted the oblong, curvy shapes of the Southern Ring Nebula, according to a new analysis of data from...
