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'Long-dead stars can yield clues to life in the cosmos'
@CSInst fellows Thea Kozakis, Lisa Kaltenegger, & Zifan Lin present their research about how to search for life in Earth-like planets orbiting white-dwarfs
https://news.cornell.edu/stories/2020/04/long-dead-stars-can-yield-clues-life-cosmos … @Cornell @theakozakis @KalteneggerLisa
'Astronomers may one day decipher the atmospheres of Earth-like rocky exoplanets. The planet’s accompanying white dwarf sits at the planet’s horizon.'
Artist concept: Jack Madden (@CSInst fellow, @Astro_Madden, @Cornell Astro graduate student)pic.twitter.com/nLxc3pWe2c
“We show what the spectral fingerprints could be and what forthcoming space-based and large terrestrial telescopes can look out for.” Thea Kozakis, lead author of the study (@theakozakis, PhD student in Astronomy at @Cornell, Carl Sagan Institute fellow)https://news.cornell.edu/stories/2020/04/long-dead-stars-can-yield-clues-life-cosmos …
“Rocky planets around white dwarfs are intriguing candidates to characterize because their hosts are not much bigger than Earth-size planets,” Lisa Kaltenegger (@KalteneggerLisa, associate professor of astronomy at @Cornell & director of the Carl Sagan Institute)
"If we observe a transit of that kind of planet, scientists can find out what is in its atmosphere, refer back to this paper, match it to spectral fingerprints & look for signs of life...This kind of guide allows observers to know what to look for.” Thea Kozakis (@theakozakis)
“If we would find signs of life on planets orbiting under the light of long-dead stars, the next intriguing question would be whether life survived the star’s death or started all over again – a second genesis, if you will.” Lisa Kaltenegger (@KalteneggerLisa)
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