NASA/GSFC: Possible 'Survivor' Planet Hugging White Dwarf Star
Posted: Wed Sep 16, 2020 5:28 pm
NASA Missions Spy First Possible 'Survivor' Planet Hugging White Dwarf Star
NASA | GSFC | TESS | Spitzer | 2020 Sep 16
A White Dwarf’s Surprise Planetary Companion
NOIRLab Science Release | 2020 Sep 16
Planet Hugging a White Dwarf May
Be a Survivor of Star's Death Throes
McDonald Observatory | University of Texas | 2020 Sep 16
Research Reveals an Enormous Planet
Quickly Orbiting a Tiny, Dying Star
University of Wisconsin, Madison | 2020 Sep 16
Newly Discovered Planet Survived Death of Its Star
University of California, Riverside | 2020 Sep 16
Planet Discovered Transiting a Dead Star
Nature | News and Views | 2020 Sep 16
A Giant Planet Candidate Transiting a White Dwarf ~ Andrew Vanderburg et al
NASA | GSFC | TESS | Spitzer | 2020 Sep 16
An international team of astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) and retired Spitzer Space Telescope has reported what may be the first intact planet found closely orbiting a white dwarf, the dense leftover of a Sun-like star, only 40% larger than Earth.Click to play embedded YouTube video.
The Jupiter-size object, called WD 1856 b, is about seven times larger than the white dwarf, named WD 1856+534. It circles this stellar cinder every 34 hours, more than 60 times faster than Mercury orbits our Sun.
“WD 1856 b somehow got very close to its white dwarf and managed to stay in one piece,” said Andrew Vanderburg ... “The white dwarf creation process destroys nearby planets, and anything that later gets too close is usually torn apart by the star’s immense gravity. We still have many questions about how WD 1856 b arrived at its current location without meeting one of those fates.” ...
The satellite spotted WD 1856 b about 80 light-years away in the northern constellation Draco. It orbits a cool, quiet white dwarf that is roughly 11,000 miles (18,000 kilometers) across, may be up to 10 billion years old, and is a distant member of a triple star system. ...
A White Dwarf’s Surprise Planetary Companion
NOIRLab Science Release | 2020 Sep 16
Planet Hugging a White Dwarf May
Be a Survivor of Star's Death Throes
McDonald Observatory | University of Texas | 2020 Sep 16
Research Reveals an Enormous Planet
Quickly Orbiting a Tiny, Dying Star
University of Wisconsin, Madison | 2020 Sep 16
Newly Discovered Planet Survived Death of Its Star
University of California, Riverside | 2020 Sep 16
Planet Discovered Transiting a Dead Star
Nature | News and Views | 2020 Sep 16
A Giant Planet Candidate Transiting a White Dwarf ~ Andrew Vanderburg et al
- Nature 585(7825):363 (17 Sep 2020) DOI: 10.1038/s41586-020-2713-y
- arXiv.org > astro-ph > arXiv:2009.07282 > 15 Sep 2020