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.

Planetary atmospheres

earth-like planets

stars

extrasolar terrestrial planets

atmosphere

life

search

Biomarkers

infrared radiation

thermal emission

hd 189733b

Habitable planets

Exoplanet search

red-edge

Författare

L. Kaltenegger

Harvard-Smithsonian Center for Astrophysics

F. Selsis

Universite de Bordeaux

M. Fridlund

ESTEC - European Space Research and Technology Centre

H. Lammer

Institut fur Weltraumforschung

C. Beichman

Jet Propulsion Laboratory, California Institute of Technology

W. Danchi

NASA Goddard Space Flight Center

C. Eiroa

Universidad Autonoma de Madrid

T. Henning

Max Planck Institut fur Astronomie

T. Herbst

Max Planck Institut fur Astronomie

A. Leger

Universite Paris-Sud XI

René Liseau

Chalmers, Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik

J. Lunine

University of Arizona

F. Paresce

Istituto Nazionale Di Astrofisica, Rome

A. Penny

Rutherford Appleton Laboratory

A. Quirrenbach

Landessternwarte Heidelberg

H. Rottgering

Leiden Observatory Research Institute

J. Schneider

Observatoire de Paris-Meudon

D. Stam

SRON Netherlands Institute for Space Research

G. Tinetti

UCL

G. J. White

Open University

Rutherford Appleton Laboratory

Astrobiology

1531-1074 (ISSN)

Vol. 10 89-102

Ämneskategorier

Astronomi, astrofysik och kosmologi

Fundament

Grundläggande vetenskaper

DOI

10.1089/ast.2009.0381