SETI public: Report by the ESA-ESO Working Group on Extra-Solar Planets

From: LARRY KLAES (ljk4_at_msn.com)
Date: Thu Jun 09 2005 - 03:39:22 PDT

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    Paper: astro-ph/0506163
    Date: Wed, 8 Jun 2005 08:57:18 GMT (266kb)

    Title: Report by the ESA-ESO Working Group on Extra-Solar Planets

    Authors: M. Perryman, O. Hainaut, D. Dravins, A. Leger, A. Quirrenbach, H.
      Rauer, F. Kerber, R. Fosbury, F. Bouchy, F. Favata, M. Fridlund, R.
    Gilmozzi,
      A.-M. Lagrange, T. Mazeh, D. Rouan, S. Udry, J. Wambsganss
    Comments: ESA-ESO Working Groups Report No. 1, 92 pages, 7 figures, a pdf
      version including the cover pages is available from ESO and ESA websites:
      http://www.eso.org/gen-fac/pubs/esaesowg/
      http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=36935 A
    printed
      version (A5 booklet) is available in limited numbers from Space
      Telescope-European Coordinating Facility (ST-ECF) on request:
    stdesk_at_eso.org
    \\
      Various techniques are being used to search for extra-solar planetary
    signatures, including accurate measurement of radial velocity and positional
    (astrometric) displacements, gravitational microlensing, and photometric
    transits. Planned space experiments promise a considerable increase in the
    detections and statistical knowledge arising especially from transit and
    astrometric measurements over the years 2005-15, with some hundreds of
    terrestrial-type planets expected from transit measurements, and many
    thousands
    of Jupiter-mass planets expected from astrometric measurements.

      Beyond 2015, very ambitious space (Darwin/TPF) and ground (OWL)
    experiments
    are targeting direct detection of nearby Earth-mass planets in the habitable
    zone and the measurement of their spectral characteristics. Beyond these,
    `Life
    Finder' (aiming to produce confirmatory evidence of the presence of life)
    and
    `Earth Imager' (some massive interferometric array providing resolved images
    of
    a distant Earth) appear as distant visions.

      This report, to ESA and ESO, summarises the direction of exo-planet
    research
    that can be expected over the next 10 years or so, identifies the roles of
    the
    major facilities of the two organisations in the field, and concludes with
    some
    recommendations which may assist development of the field.

      The report has been compiled by the Working Group members and experts over
    the period June-December 2004.

    \\ ( http://arXiv.org/abs/astro-ph/0506163 , 266kb)


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