Characterization of potentially habitable planets: Retrieval of atmospheric and planetary properties from emission spectra

@article{Paris2013CharacterizationOP,
  title={Characterization of potentially habitable planets: Retrieval of atmospheric and planetary properties from emission spectra},
  author={Philip von Paris and Pascal Hedelt and Franck Selsis and Franz Schreier and Thomas Trautmann},
  journal={Astronomy and Astrophysics},
  year={2013},
  volume={551},
  pages={120}
}
Context. An increasing number of potentially habitable terrestrial planets and planet candidates are found by ongoing planet search programs. The search for atmospheric signatures to establish planetary habitability and the presence of life might be possible in the future. Aims. We want to quantify the accuracy of retrieved atmospheric parameters (composition, temperature, pressure) that might be obtained from infrared emission spectroscopy. Methods. We use synthetic observations of the… 
Water Planets in the Habitable Zone: Atmospheric Chemistry, Observable Features, and the case of Kepler-62e and -62f
Planets composed of large quantities of water that reside in the habitable zone are expected to have distinct geophysics and geochemistry of their surfaces and atmospheres. We explore these
DETECTING AND CONSTRAINING N2 ABUNDANCES IN PLANETARY ATMOSPHERES USING COLLISIONAL PAIRS
Characterizing the bulk atmosphere of a terrestrial planet is important for determining surface pressure and potential habitability. Molecular nitrogen (N2) constitutes the largest fraction of
The sustainability of habitability on terrestrial planets: Insights, questions, and needed measurements from Mars for understanding the evolution of Earth‐like worlds
What allows a planet to be both within a potentially habitable zone and sustain habitability over long geologic time? With the advent of exoplanetary astronomy and the ongoing discovery of
Deciphering thermal phase curves of dry, tidally locked terrestrial planets
Next-generation space telescopes will allow us to characterize terrestrial exoplanets. To do so effectively it will be crucial to make use of all available data. We investigate which atmospheric
Atmospheric characterization of terrestrial exoplanets in the mid-infrared: biosignatures, habitability, and diversity
Exoplanet science is one of the most thriving fields of modern astrophysics. A major goal is the atmospheric characterization of dozens of small, terrestrial exoplanets in order to search for
Exoplanet science with a space-based mid-infrared nulling interferometer
One of the long-term goals of exoplanet science is the (atmospheric) characterization of a large sample (>100) of terrestrial planets to assess their potential habitability and overall diversity.
Exoplanet Biosignatures: Observational Prospects
TLDR
The observability of not only the proposed biosignature candidates themselves but also of more general planetary properties that provide circumstantial evidence are discussed, since the evaluation of any biosignatures candidate relies on its context.
SVEEEETIES: singular vector expansion to estimate Earth-like exoplanet temperatures from infrared emission spectra
Context. Detailed characterizations of exoplanets are moving to the forefront of planetary science. Temperature is a key marker for understanding atmospheric physics and chemistry. Aims. We aim to
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 Victoria
...
1
2
3
4
...

References

SHOWING 1-10 OF 90 REFERENCES
Spectroscopic characterization of the atmospheres of potentially habitable planets: GL 581 d as a model case study
Context. Were a potentially habitable planet to be discovered, the next step would be the search for an atmosphere and its characterization. Eventually, surface conditions, hence habitability, and
Synthetic spectra of simulated terrestrial atmospheres containing possible biomarker gases.
TLDR
The calculated spectra suggest that ozone could be detected by an instrument like Terrestrial Planet Finder if the O2 concentration in the planet's atmosphere is > or = 200 ppm, or 10(-3) times the present atmospheric level.
Potential biosignatures in super-Earth atmospheres I. Spectral appearance of super-Earths around M dwarfs
Atmospheric temperature and mixing ratio profiles of terres trial planets vary with the spectral energy flux distribution for di fferent types of M-dwarf stars and the planetary gravity. We
Spectral Evolution of an Earth-like Planet
We have developed a characterization of the geological evolution of the Earth's atmosphere and surface in order to model the observable spectra of an Earth-like planet through its geological history.
Remote sensing of planetary properties and biosignatures on extrasolar terrestrial planets.
TLDR
It is found that both the mid-IR and the visible to near-IR wavelength ranges offer valuable information regarding biosignatures and planetary properties; therefore both merit serious scientific consideration for TPF and Darwin.
The HARPS search for southern extra-solar planets - XXXI. The M-dwarf sample
Searching for planets around stars with different masses helps us to assess the outcome of planetary formation for different initial conditions. The low-mass M dwarfs are also the most frequent stars
Primary and secondary eclipse spectroscopy with JWST exploring the exoplanet parameter space
Eclipse exoplanet spectroscopy has yielded detection of H_2O, CH_4, CO_2 and CO in the atmosphere of hot jupiters and neptunes. About 40 large terrestrial planets are announced or confirmed, two of
Thermal phase curves of nontransiting terrestrial exoplanets - II. Characterizing airless planets
Context. The photometric signal we receive from a star hosting a planet is modulated by the variation in the planet signal with its orbital phase. Such phase variations (or phase curves) are observed
TRANSITS OF EARTH-LIKE PLANETS
Transmission spectroscopy of Earth-like exoplanets is a potential tool for habitability screening. Transiting planets are present-day "Rosetta Stones" for understanding extrasolar planets because
...
1
2
3
4
5
...