ANCIENT PLANETARY SYSTEMS ARE ORBITING A LARGE FRACTION OF WHITE DWARF STARS

@article{Zuckerman2010ANCIENTPS,
  title={ANCIENT PLANETARY SYSTEMS ARE ORBITING A LARGE FRACTION OF WHITE DWARF STARS},
  author={Ben Zuckerman and Carl Melis and Beth L. Klein and Detlev Koester and M. Jura},
  journal={The Astrophysical Journal},
  year={2010},
  volume={722},
  pages={725 - 736}
}
Infrared studies have revealed debris likely related to planet formation in orbit around ∼30% of youthful, intermediate mass, main-sequence stars. We present evidence, based on atmospheric pollution by various elements heavier than helium, that a comparable fraction of the white dwarf descendants of such main-sequence stars are orbited by planetary systems. These systems have survived, at least in part, through all stages of stellar evolution that precede the white dwarf. During the time… 

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References

SHOWING 1-10 OF 65 REFERENCES

Are There Unstable Planetary Systems around White Dwarfs?

The presence of planets around solar-type stars suggests that many white dwarfs should have relic planetary systems. While planets closer than ~5 AU will most likely not survive the

INFRARED SIGNATURES OF DISRUPTED MINOR PLANETS AT WHITE DWARFS

Spitzer Space Observatory IRAC and MIPS photometric observations are presented for 20 white dwarfs with Teff ≲ 20, 000 K and metal-contaminated photospheres. A warm circumstellar disk is detected at

A Gaseous Metal Disk Around a White Dwarf

TLDR
A metal-rich gas disk around a moderately hot and young white dwarf implies that planetary systems may form around high-mass stars.

The Effects of Post-Main-Sequence Solar Mass Loss on the Stability of Our Planetary System

Abstract We present the results of extensive long-term integrations of systems of planets with orbits initially identical to subsets of the planets within our Solar System, but with the Sun's mass

THE SURVIVAL OF WATER WITHIN EXTRASOLAR MINOR PLANETS

We compute that extrasolar minor planets can retain much of their internal H2O during their host star's red giant evolution. The eventual accretion of a water-rich body or bodies onto a helium white

A Tidally Disrupted Asteroid around the White Dwarf G29-38

The infrared excess around the white dwarf G29-38 can be explained by emission from an opaque flat ring of dust with an inner radius of 0.14 R☉ and an outer radius of less than 1 R☉. This ring lies

RETIRED A STARS AND THEIR COMPANIONS. III. COMPARING THE MASS–PERIOD DISTRIBUTIONS OF PLANETS AROUND A-TYPE STARS AND SUN-LIKE STARS

We present an analysis of ∼5 years of Lick Observatory radial velocity measurements targeting a uniform sample of 31 intermediate-mass (IM) subgiants (1.5 ≲ M*/M☉≲ 2.0) with the goal of measuring the

Direct Imaging of Multiple Planets Orbiting the Star HR 8799

TLDR
High-contrast observations with the Keck and Gemini telescopes have revealed three planets orbiting the star HR 8799, with projected separations of 24, 38, and 68 astronomical units.

Rocky planetesimals as the origin of metals in DZ stars

TLDR
Based on this result, pollution by the interstellar medium cannot simultaneously account for both the polluted and non-polluted subpopulations, and it is probable that these white dwarfs are contaminated by circumstellar matter; the rocky remains of terrestrial planetary systems.

Element abundances in cool white dwarfs - II. Ultraviolet observations of DZ white dwarfs

We present a small data base of homogeneously derived photospheric element abundances of DZ white dwarfs and related objects. Our previous investigations are supplemented with the analysis of
...