Deciphering Spectral Fingerprints of Habitable Exoplanets
Artikel i vetenskaplig tidskrift, 2010
We discuss how to read a planet's spectrum to assess its habitability and search for the signatures of a biosphere. After a decade rich in giant exoplanet detections, observation techniques have advanced to a level where we now have the capability to find planets of less than 10 Earth masses (M-Earth) (so-called "super Earths''), which may be habitable. How can we characterize those planets and assess whether they are habitable? This new field of exoplanet search has shown an extraordinary capacity to combine research in astrophysics, chemistry, biology, and geophysics into a new and exciting interdisciplinary approach to understanding our place in the Universe. The results of a first-generation mission will most likely generate an amazing scope of diverse planets that will set planet formation, evolution, and our planet into an overall context.
hd 189733b
infrared radiation
Planetary atmospheres
atmosphere
stars
life
earth-like planets
Habitable planets
Biomarkers
red-edge
thermal emission
Exoplanet search
search
extrasolar terrestrial planets
Författare
L. Kaltenegger
Harvard-Smithsonian Center for Astrophysics
F. Selsis
Université de Bordeaux
M. Fridlund
European Space Research and Technology Centre (ESA ESTEC)
H. Lammer
Institut fur Weltraumforschung
C. Beichman
Jet Propulsion Laboratory, California Institute of Technology
W. Danchi
National Aeronautics and Space Administration (NASA)
C. Eiroa
Universidad Autonoma de Madrid (UAM)
T. Henning
Max-Planck-Gesellschaft
T. Herbst
Max-Planck-Gesellschaft
A. Leger
Université Paris-Sud
René Liseau
Chalmers, Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik
J. Lunine
University of Arizona
F. Paresce
Istituto nazionale di astrofisica (INAF)
A. Penny
STFC Rutherford Appleton Laboratory
A. Quirrenbach
Landessternwarte Heidelberg-Königstuhl
H. Rottgering
Universiteit Leiden
J. Schneider
Observatoire de Paris-Meudon
D. Stam
Netherlands Institute for Space Research (SRON)
G. Tinetti
University College London (UCL)
G. J. White
Open University
STFC Rutherford Appleton Laboratory
Astrobiology
1531-1074 (ISSN)
Vol. 10 1 89-102Ämneskategorier (SSIF 2011)
Astronomi, astrofysik och kosmologi
Fundament
Grundläggande vetenskaper
DOI
10.1089/ast.2009.0381