Sentences with phrase «white dwarf companion»

PSR J1713 +0747, as it is known, has a tiny white dwarf companion star, and the two orbit each other exceptionally predictably.

This turns out to be non-uniform, since this cool sub-stellar object is strongly irradiated by its much hotter white dwarf companion.

12 systems were resolved as new binaries, including the discovery of a new white dwarf companion to the star HD8049.

Thus, US 708 could have originally resided in an ultra compact binary system, transferring helium to a massive white dwarf companion, ultimately triggering a thermonuclear explosion of a type Ia supernova.

Hence, as a «mild» barium star, Gacrux is believed to have an unseen white dwarf companion, like Alphard (Alpha Hydrae)(Mennessier et al, 1997).

This Hubble image also shows white dwarf companion Sirius B, at lower left (more).

David Aguilar, Harvard - Smithsonian Center for Astrophysics — larger «day» and «night» images At maximum brightness, Mira would light up a hypothetical planetary companion, but at its most dark, the giant star's small, hot white dwarf companion would become visible (more discussion with illustration).

Previous studies show that it takes about 68 days for the pulsar to orbit its white dwarf companion, meaning they share an uncommonly wide orbit.

Astronomers have detected a sub-stellar object that used to be a star, after being consumed by its white dwarf companion.

After their data were analyzed, the researchers discovered the telltale signatures of three additional pulsars and their white dwarf companion stars.

Sirius A is substantially larger than Sol, although its white dwarf companion B is smaller than Jupiter (more from ESO).

Like Mira, Gacrux may have a white dwarf companion.

HD 147513 A is a so - called young «Barium dwarf» (s - process element rich but comparatively carbon deficient) star that was probably enriched by an asymptotic branch giant (AGB) star (see Gacrux) but is now a very dim, white dwarf companion, which has an observed separation of around 4,400 AUs — 5.7» at a HIPPARCOS distance estimate of 42.0 ly (Porto de Mello and da Silva, 1997; and Poveda et al, 1993, pp. 74 - 75).

The star, however, is a «Barium - dwarf» (s - process element rich but comparatively carbon deficient) candidate star, that was probably enriched by an asymptotic branch giant (AGB) star (see Gacrux) but is now a very dim, white dwarf companion.

H. Bond (STSci), R. Ciardullo (PSU), WFPC2, HST, NASA — larger image (Gacrux may have a white dwarf companion B, a remnant stellar core that has already cast off its outer gas layers, like planetary nebula NGC 2440.)

But for some reason, nobody had ever found a star with BOTH a debris disk and a white dwarf companion.

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.

The Sun, the 12 brightest stars of the Northern Hemisphere and the white dwarf companion stars to Sirius and Procyon are shown.