A giant planet candidate transiting a white dwarf.

@article{Vanderburg2020AGP,
  title={A giant planet candidate transiting a white dwarf.},
  author={Andrew M. Vanderburg and Saul Rappaport and Siyi Xu and Ian J. M. Crossfield and Juliette Becker and Bruce L. Gary and Felipe Murgas and Simon Blouin and Thomas G. Kaye and Enric Pall{\'e} and Carl Melis and Brett M. Morris and Laura Kreidberg and Varoujan Gorjian and Caroline V. Morley and Andrew W. Mann and Hannu Parviainen and Logan A. Pearce and Elisabeth R. Newton and Andreia Carrillo and Ben Zuckerman and Lorne A. Nelson and Gregory R. Zeimann and Warren R. Brown and Ren{\'e} Tronsgaard and Beth L. Klein and George R. Ricker and Roland K. Vanderspek and David W. Latham and Sara Seager and Joshua N. Winn and Jon M. Jenkins and Fred C. Adams and Bj{\"o}rn Benneke and David A. Berardo and Lars A. Buchhave and Douglas A. Caldwell and Jessie L. Christiansen and Karen A. Collins and Knicole d. Col'on and T. Daylan and John P. Doty and Alexandra E. Doyle and Diana Dragomir and Courtney D. Dressing and P. Dufour and Akihiko Fukui and Ana Glidden and Natalia M. Guerrero and Xueying Guo and Kevin Heng and Andreea I. Henriksen and Chelsea Xu Huang and Lisa Kaltenegger and Stephen R. Kane and John Arban Lewis and Jack J. Lissauer and Farisa Y. Morales and Norio Narita and Joshua A. Pepper and Mark E. Rose and Jeffrey C. Smith and Keivan G. Stassun and Liang Yu},
  journal={Nature},
  year={2020},
  volume={585 7825},
  pages={
          363-367
        }
}
Astronomers have discovered thousands of planets outside the Solar System1, most of which orbit stars that will eventually evolve into red giants and then into white dwarfs. During the red giant phase, any close-orbiting planets will be engulfed by the star2, but more distant planets can survive this phase and remain in orbit around the white dwarf3,4. Some white dwarfs show evidence for rocky material floating in their atmospheres5, in warm debris disks6-9 or orbiting very closely10-12, which… Expand

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References

SHOWING 1-10 OF 170 REFERENCES
Accretion of a giant planet onto a white dwarf star
TLDR
Optical spectroscopy of a hot white dwarf, WD J091405.30+191412, reveals that the chemical abundances in its disk are similar to those thought to exist deep in icy giant planets, so the white dwarf must be accreting a giant planet. Expand
A planetesimal orbiting within the debris disc around a white dwarf star
TLDR
A stable 123.4-minute periodic variation in the strength and shape of the Ca ii emission line profiles originating from the debris disc around the white dwarf SDSS J122859.93+104032 is interpreted as the signature of a solid-body planetesimal held together by its internal strength. Expand
Tidal circularization of gaseous planets orbiting white dwarfs
A gas giant planet which survives the giant branch stages of evolution at a distance of many au and then is subsequently perturbed sufficiently close to a white dwarf will experience orbitalExpand
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 theExpand
ON THE SURVIVAL OF BROWN DWARFS AND PLANETS ENGULFED BY THEIR GIANT HOST STAR
The recent discovery of two Earth-mass planets in close orbits around an evolved star has raised questions as to whether substellar companions can survive encounters with their host stars. WeExpand
The dynamical history of the evaporating or disrupted ice giant planet around white dwarf WD J0914+1914
Robust evidence of an ice giant planet shedding its atmosphere around the white dwarf WD J0914+1914 represents a milestone in exoplanetary science, allowing us to finally supplement our knowledge ofExpand
Cold Giant Planets Evaporated by Hot White Dwarfs
Atmospheric escape from close-in Neptunes and hot Jupiters around Sun-like stars driven by extreme ultraviolet (EUV) irradiation plays an important role in the evolution of exoplanets and in shapingExpand
TRANSIT SURVEYS FOR EARTHS IN THE HABITABLE ZONES OF WHITE DWARFS
To date the search for habitable Earth-like planets has primarily focused on nuclear burning stars. I propose that this search should be expanded to cool white dwarf stars that have expended theirExpand
A disintegrating minor planet transiting a white dwarf
TLDR
Observations of a white dwarf being transited by at least one, and probably several, disintegrating planetesimals are reported, providing further evidence that the pollution of white dwarfs by heavy elements might originate from disrupted rocky bodies such as asteroids and minor planets. Expand
Throwing Icebergs at White Dwarfs
White dwarfs have atmospheres that are expected to consist nearly entirely of hydrogen and helium, since heavier elements will sink out of sight on short timescales. However, observations haveExpand
...
1
2
3
4
5
...