High-resolution observations shed more light on a peculiar brown dwarf system
Using the Keck Planet Imager and Characterizer (KPIC), astronomers have performed high-resolution spectroscopic observations ...
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High-Resolution Observations Provide New Insights into Brown Dwarf HD 206893 B
HD 206893 B reveals crucial data on atmospheric composition Spectroscopic study shows brown dwarf's mass and temperature Further studies with JWST expected to clarify its formation ...
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White Dwarfs
When they reach the end of their long evolutions, smaller stars—those up to eight times as massive as our own sun—typically become white dwarfs. These ancient stars are incredibly dense.
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Unusual binary system hosts a massive fast-spinning white dwarf
Mereghetti noted that HD 49798/RX J0648.0–4418 is the only known accretion-powered X-ray binary in which the mass donor is a hot subdwarf. Moreover, the white dwarf's large mass and high spin ...