Sentences with phrase «faintest white dwarf star»

Not exact matches

We once thought that dark matter might be made up of large objects such as black holes or exotic types of faint stars — neutron stars or white dwarfs — that are nearly invisible to our telescopes.

But von Hippel, Gilmore and their colleagues used the Hubble Space Telescope, and this allowed them to identify and measure the temperature of white dwarfs as faint as 25th magnitude, which is about 100 million times fainter than any star visible with the naked eye.

Maybe it was just large accumulations of dim but familiar objects, like extremely faint red stars or white dwarfs, some astronomers speculated.

«Our final image should show us a companion 100 times fainter than any other white dwarf orbiting a neutron star and about 10 times fainter than any known white dwarf, but we don't see a thing,» team member Bart Dunlap, a graduate student from the University of North Carolina at Chapel Hill, said in a statement.

«You can see bulges in distant galaxies, but you can not resolve the very faint stars, such as the white dwarfs.

During that night, the scientists were able to measure the changing Doppler shift of the star NLTT 11748 as it orbited its faint, but more massive, white dwarf companion.

When this happens, smaller stars expand into what astronomers call red giants, then shrink into faint white dwarfs, according to NASA.

A 1997 paper by astronomers (Henry et al) associated with the Research Consortium on Nearby Stars (RECONS) suggests that the sample of stars known to lie within 10 parsecs (32.6 ly) of Earth is «woefully incomplete,» particularly in faint red (M) dwarfs and «white» dwStars (RECONS) suggests that the sample of stars known to lie within 10 parsecs (32.6 ly) of Earth is «woefully incomplete,» particularly in faint red (M) dwarfs and «white» dwstars known to lie within 10 parsecs (32.6 ly) of Earth is «woefully incomplete,» particularly in faint red (M) dwarfs and «white» dwarfs.