Exoplanet Habitability

@article{Seager2013ExoplanetH,
  title={Exoplanet Habitability},
  author={Sara Seager},
  journal={Science},
  year={2013},
  volume={340},
  pages={577 - 581}
}
The search for exoplanets includes the promise to eventually find and identify habitable worlds. The thousands of known exoplanets and planet candidates are extremely diverse in terms of their masses or sizes, orbits, and host star type. The diversity extends to new kinds of planets, which are very common yet have no solar system counterparts. Even with the requirement that a planet’s surface temperature must be compatible with liquid water (because all life on Earth requires liquid water), a… Expand

Topics from this paper

Colloquium: Physical constraints for the evolution of life on exoplanets
Since the 1990s over 4000 exoplanets have been discovered: which of them could also develop and harbor life? It is posited that the planet must have liquid water, a surrounding atmosphere, and mustExpand
The search for signs of life on exoplanets at the interface of chemistry and planetary science
TLDR
The exciting frontier for biosignature gas ideas is not in the study of biology itself, which is inevitably rooted in Earth’s geochemical and evolutionary specifics, but in the interface of chemistry and planetary physics. Expand
What makes a planet habitable?
TLDR
To focus the search for extraterrestrial life, scientists must assess which features of Earth are essential to the development and sustenance of life for billions of years and whether the formation of such planets is common. Expand
Exploring Habitability Markers, Biosignatures, and Their False Positives Using Spectral Models of Terrestrial Exoplanets
Exploring Habitability Markers, Biosignatures, and Their False Positives Using Spectral Models of Terrestrial Exoplanets Edward W. Schwieterman Chair of the Supervisory Committee: Professor VictoriaExpand
Habitable zone lifetimes of exoplanets around main sequence stars.
TLDR
The results show that exoplanet HD 85512b is no longer within the HZ, assuming it has an Earth analog atmosphere, and should be considered in future models of planetary habitability as setting an upper limit on the lifetime of any potential exoplanetary biosphere. Expand
News Feature: The perfect planet
  • Adam Mann
  • Physics, Medicine
  • Proceedings of the National Academy of Sciences
  • 2016
Astronomers are at odds over what makes exoplanets “habitable.” These days, astronomers barely bat an eyelid when they find a new exoplanet: there have been nearly 2,000 discovered in the last 10Expand
Direct imaging of exoplanets in the habitable zone with adaptive optics
One of the primary goals of exoplanet science is to find and characterize habitable planets, and direct imaging will play a key role in this effort. Though imaging a true Earth analog is likely outExpand
Atmospheric Beacons of Life from Exoplanets Around G and K Stars
TLDR
The powerful emission from rotational-vibrational bands of nitric oxide, hydroxyl and molecular oxygen are proposed to use as signatures of nitrogen, oxygen, and water rich atmospheres of terrestrial type exoplanets “highlighted” by the magnetic activity from young G and K main-sequence stars. Expand
The future of spectroscopic life detection on exoplanets
  • S. Seager
  • Physics, Medicine
  • Proceedings of the National Academy of Sciences
  • 2014
TLDR
The vision for the path to assess the presence of life beyond Earth is being established and the conviction that biosignature gases will actually be detected in the future is moderated by lessons learned from the dozens of exoplanet atmospheres studied in last decade. Expand
The Climates of Other Worlds: A Review of the Emerging Field of Exoplanet Climatology
  • Aomawa L. Shields
  • Environmental Science, Physics
  • The Astrophysical Journal Supplement Series
  • 2019
The discovery of planets orbiting stars other than the Sun has accelerated over the past decade, and this trend will continue as new space- and ground-based observatories employ next-generationExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 42 REFERENCES
The Limits of Organic Life in Planetary Systems
Copyright © National Academy of Sciences. All rights reserved. Unless otherwise indicated, all materials in this PDF file are copyrighted by the National Academy of Sciences. Distribution or copyingExpand
Nature
  • R. Rosenfeld
  • Medicine
  • Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
  • 2009
TLDR
I am writing with a simple plea to balance the voluminous articles about treatment in your journal with a modicum of information about nature and caring effects to rekindle the perception of physicians as healers, not only treaters, who relish the gifts of nature, and foster the humanistic aspect of medicine that has thrived for millennia. Expand
疟原虫var基因转换速率变化导致抗原变异[英]/Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1(PfPMP1)与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员,通过启动转录不同的var基因变异体为抗原变异提供了分子基础。
Res
  • 102, 10875 (1997). Acknowledgments: I thank A. Zsom, V. Stamenkovic, and L. Rogers for useful discussions and D. Beckner for producing the figures. 10.1126/science.1232226 www.sciencemag.org SCIENCE VOL 340 3 MAY
  • 2013
Astrobiology
  • Astrobiology
  • 2012
Astrobiology
  • Astrobiology
  • 2011
Astrobiology
  • Astrobiology
  • 2011
Astrobiology
  • Astrobiology
  • 2011
Astrophys. J
  • Astrophys. J
  • 2011
Univ. of Arizona Press Astrophys. J
  • Univ. of Arizona Press Astrophys. J
  • 2011
...
1
2
3
4
5
...