KARL R STAPELFELDT

KARL R STAPELFELDT

  • Chief , Exoplanets and Stellar Astrophysics Laboratory
  • 301.286.3328
  • NASA/GSFC
  • Mail Code: 667
  • Greenbelt , MD 20771
  • Employer: NASA
  • Research Interests

    Protoplanetary and Debris disks

    Optical, infrared, and millimeter wave observations
    Scattered light and spectral energy distribution modeling
     

    Imaging of Extrasolar Planets

    Near-infrared adaptive optics surveys of nearby stars
    Coronagraph instrument development and data analysis techniques
    Studies of future probe-scale and flagship-scale space missions
     

    Star Formation

    Surveys of nearby molecular clouds
    Structure and evolution of Herbig-Haro flows

    Current Projects

    Exo-C: A Design Study of a Probe-scale Space Observatory for Direct Imaging and Spectroscopy of Extrasolar Planetary Systems using an Internal Coronagraph

    Mission concept study chartered by NASA HQ to design a Kepler-like mission for coronagraphic imaging of exoplanets.  Role: Chair of the Science and Technology Definition Team

    Imaging of Edge-on Protoplanetary Disks in Nearby Star-Forming Regions

    Hubble Space Telescope survey program 12514 (Principal Investigator) and
    follow-up program 13643 (Co-I with Gaspard Duchene, UC Berkeley).  Groundbased
    follow-up at near-IR and millimeter wavelengths

    Large Binocular Telescope Interferometer

    Member of NASA Exozodi Key Science Team.  Survey of ~50 nearby
    stars to detect or planet limits on dust in the habitable zone.

    iLocater: The World's First Diffraction-limited Doppler Spectrometer

    Precision radial velocity instrument for the Large Binocular Telescope, operating
    in the Y band and utilizing the LBT adaptive optics system.  Lead for GSFC
    participation in project led by the Univ. of Notre Dame.

    Spitzer Cycle 8 GO: "Characterization of New Herbig-Haro Flows in the Taurus Star Formation Region"

    Principal Investigator

    Herschel DUNES Open Time Key Project

    PACS survey of nearby stars for far-infrared excess emission.  U.S. PI

    Field Star Debris Disks from the WISE All-Sky Survey

    WISE catalog searches and Herschel far-infrared followup of
    selected targets (co-I with Dr. Deborah Padgett, GSFC).

    Spitzer photometric followup of selected targets (Principal Investigator)

    Coronagraphic planet searches in WISE debris disk stars using the
    Keck, VLT, and Gemini observatories (co-I with Sasha Hinkley, Univ. of Exeter;
    and Dimitri Mawet, Caltech)

    HST Cycle 18 GO program 12291 "STIS coronagraphy of Spitzer-selected debris disks:

    co-Investigator with Mr. John Krist (JPL)

    HST GO Cycle 16+: "Particle separation in and expansion of the dust arcs of the young star V1331 Cyg"

    co-I with Dr. Bringfried Stecklum (Tautenburg)

    Education

    Ph.D. Astrophysics, California Institute of Technology 1991

    B.S.E. Mechanical/Aerospace Engineering and Engineering Physics, Princeton University 1984

    Positions/Employment

    8/2011 - Present

    Chief, Laboratory for Exoplanets and Stellar Astrophysics

    NASA - Goddard Space Flight Center, Greenbelt MD
    3/2010 - 4/2010

    Visiting Scientist, Exoplanet Study Program

    Kavli Institute for Theoretical Astrophysics, University of California, Santa Barbara, CA
    10/2005 - 8/2011

    Principal Scientist

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA
    6/2005 - 1/2007

    Deputy Project Scientist, Terrestrial Planet Finder Coronagraph pre-project

    NASA/JPL/Caltech, Pasadena CA
    10/2004 - 5/2005

    Acting Project Scientist, Terrestrial Planet Finder Corongraph pre-project

    NASA/JPL/Caltech, Pasadena CA
    10/2000 - 9/2005

    Research Scientist

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA
    11/2002 - 10/2004

    Coronagraph Study Scientist, Terrestrial Planet Finder pre-project

    NASA/JPL/Caltech, Pasadena CA
    6/2002 - 7/2002

    Visiting Scientist

    Laboratoire d'Astrophysique de Universite de Grenoble, Grenoble, France
    2/1999 - 7/2011

    Spitzer Space Telescope Project Science Office

    NASA/JPL/Caltech, Pasadena CA
    6/1999 - 7/2011

    Associate Member, Spitzer/MIPS Instrument Science Team

    NASA/JPL/Caltech, Pasadena CA
    4/1996 - 6/1996

    Visiting Scientist

    Max Planck Institute for Astronomy, Heidelberg, Germany
    3/1994 - 9/2000

    Staff Scientist

    NASA/JPL/Caltech, Pasadena CA
    3/1994 - 9/1999

    Associate Member, HST/WFPC2 Instrument Science Team

    NASA/JPL/Caltech, Pasadena CA
    3/1993 - 2/1994

    Postdoctoral Fellow

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA
    10/1990 - 2/1993

    Postdoctoral Research Associate

    Astronomy Department, University of Massachusetts, Amherst MA
    10/1988 - 9/1990

    NASA Graduate Student Research Fellow

    JPL/Caltech, Pasadena CA

    Teaching Experience

    Visiting Lecturer in Astronomy, University of Southern California, Spring 1999
    Visiting Lecturer in Astronomy, University of California Los Angeles, Winter 1995-6
     

    Professional Societies

    American Astronomical Society, 1994 - Present
    AAS Division for Planetary Sciences, 1994 - Present
    American Institute for Aeronautics and Astronautics, 1985 - Present
    International Astronomical Union, 2000 - Present

    Professional Service

    Governance:

         Chair, NASA Exoplanet Archive Users Group (2014 – present)
         NASA Advisory Council Astrophysics Subcommittee (2012-2014)
         Hubble Space Telescope Users' Committee (2001-2003)

    Conference Organization:


         Local Organizing Committee, 19th International Conference on Microlensing,
             (January 2015)
         Scientific Organizing Committee, Sagan Summer School on Exoplanets
             and  Disks, (July 2013/2014)
         Scientific Organizing Committe, Lorentz Center meeting "How to Find our
             Nearest Neighbors" (October 2012)
         Scientific Organizing Committee, Signposts of Planets Conference
             (April 2011)
         Scientific Organizing Committee, Subaru Conference on Exoplanets and  
              Disks (March 2009)
         Scientific Organizing Committee, Spitzer Science conference (Nov 2008)
         Chair, Local Organizing Committee, Spitzer Science conference (Nov 2008)
         Scientific Organizing Committee, "Spirit of Lyot" conference (June 2007)
         Scientific Organizing Committee, Cool Stars XIV conference (Nov 2006)
         Local Organizing Committee, Protostars and Planets V meeting (Oct 2005)
         Special Session Organizer "The Promise and Pitfalls of High Contrast
             Imaging", American Astronomical Sociey 198th meeting (June 2001)
         Science Advisory Committee, Protostars and Planets IV meeting (July 1998)
     

    Peer Review:

          Astronomy and Astrophysics
          Astrophysical Journal and Astrophysical Journal Letters
          Astronomical Journal
          Nature magazine
          Science magazine
          NASA R&A Programs: Origins of Solar Systems, SAT/APRA, and
              Roman Technology Fellowship
          National Science Foundation Astronomy (2012, 2015)
          Hubble Space Telescope Cycle 20 TAC
          NASA Keck TAC

    Awards

    2009 Newcomb-Cleveland Award, American Association for the Advancement of Science

    2004 NASA Group Achievement Award, Spitzer Space Telescope Payload Team

    1994 NASA Group Achievement Award, WideField/Planetary Camera II Science Team

    1994 NASA Group Achievement Award, WideField/Planetary Camera II Calibration Team

     

    Publications

    Refereed

    Evans, N. J., M. M. Dunham, J. K. Jørgensen, et al. M. L. Enoch, B. Merín, E. F. van Dishoeck, J. M. Alcalá, P. C. Myers, K. R. Stapelfeldt, T. L. Huard, L. E. Allen, P. M. Harvey, T. van Kempen, G. A. Blake, D. W. Koerner, L. G. Mundy, D. L. Padgett, and A. I. Sargent. 2009. "The Spitzer c2d Legacy Results: Star-Formation Rates and Efficiencies; Evolution and Lifetimes." The Astrophysical Journal Supplement, 181: 321 [Full Text (Link)] [10.1088/0067-0049/181/2/321]

    Publications

    Refereed

    Evans, N. J., M. M. Dunham, J. K. Jørgensen, et al. M. L. Enoch, B. Merín, E. F. van Dishoeck, J. M. Alcalá, P. C. Myers, K. R. Stapelfeldt, T. L. Huard, L. E. Allen, P. M. Harvey, T. van Kempen, G. A. Blake, D. W. Koerner, L. G. Mundy, D. L. Padgett, and A. I. Sargent. 2009. "The Spitzer c2d Legacy Results: Star-Formation Rates and Efficiencies; Evolution and Lifetimes." The Astrophysical Journal Supplement 181 321 [Full Text (Link)] [10.1088/0067-0049/181/2/321]

                                                                                                                                                                                            
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