Access to Astronomical Catalogues

J/PASP/122/162      Direct imaging of exoplanets           (Beichman+, 2010)
Imaging young giant planets from ground and space.
    Beichman C.A., Krist J., Trauger J.T., Greene T., Oppenheimer B.,
    Sivaramakrishnan A., Doyon R., Boccaletti A., Barman T.S., Rieke M.
   <Publ. Astron. Soc. Pac., 122, 162-200 (2010)>
   =2010PASP..122..162B
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry


Abstract:
    High-contrast imaging can find and characterize gas giant planets
    around nearby young stars and the closest M stars, complementing
    radial velocity and astrometric searches by exploring orbital
    separations inaccessible to indirect methods. Ground-based
    coronagraphs are already probing within 25AU of nearby young stars to
    find objects as small as 3M{Jup}. This paper contrasts near-term and
    future ground-based capabilities with high-contrast imaging modes of
    the James Webb Space Telescope (JWST). Monte Carlo modeling reveals
    that JWST can detect planets with masses as small as 0.2M{Jup}
    across a broad range of orbital separations. We present new
    calculations for planet brightness as a function of mass and age for
    specific JWST filters and extending to 0.1M{Jup}.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
stars.dat         90      101   Star positions from Simbad
model.dat        101      260   Calculated planet absolute magnitudes (10pc)
                              for 1Myr to 10Gyr (tables 10-19 of the paper)
detec.dat         56      200   Young stars with highest probability of planet
                              detection (tables 20-23 of the paper)


Byte-by-byte Description of file: stars.dat

   Bytes Format Units   Label     Explanations

   1- 21  A21   ---     Star      Star name
  23- 24  I2    h       RAh       Simbad Hour of Right Ascension (J2000.0)
  26- 27  I2    min     RAm       Simbad Minute of Right Ascension (J2000.0)
  29- 32  F4.1  s       RAs       Simbad Second of Right Ascension (J2000.0)
      34  A1    ---     DE-       Simbad Sign of the Declination (J2000.0)
  35- 36  I2    deg     DEd       Simbad Degree of Declination (J2000.0)
  38- 39  I2    arcmin  DEm       Simbad Arcminute of Declination (J2000.0)
  41- 42  I2    arcsec  DEs       Simbad Arcsecond of Declination (J2000.0)
  44- 49  F6.3  mag     Bmag      ? Simbad B band magnitude
  51- 56  F6.3  mag     Vmag      ? Simbad V band magnitude
  58- 66  A9    ---     SpType    Simbad MK spectral type
  68- 90  A23   ---     SName     Simbad name


Byte-by-byte Description of file: model.dat

   Bytes Format Units   Label   Explanations

   1-  5  I5    Myr     Age     Model age
   7- 12  F6.4  solMass Mpl     Planet mass
  14- 17  I4    K       Teff    Effective temperature
  19- 24  F6.3  solLum  Lpl     Planet luminosity
  26- 29  F4.2  [cm/s2] logg    Surface gravity
  31- 35  F5.2  mag     Jmag    J (1.2um) magnitude
  37- 41  F5.2  mag     Hmag    H (1.6um) magnitude
  43- 47  F5.2  mag     Kmag    K (2.2um) magnitude
  49- 53  F5.2  mag     Lmag    L (3.5um) magnitude
  55- 59  F5.2  mag     Mmag    M (5.0um) magnitude
  61- 65  F5.2  mag     F150W   HST-F150W (1.5um) magnitude
  67- 71  F5.2  mag     F277W   HST-F277W (2.8um) magnitude
  73- 77  F5.2  mag     F356W   HST-F356W (3.6um) magnitude
  79- 83  F5.2  mag     F444W   F444W HST magnitude
  85- 89  F5.2  mag     MIRI-1  JSWT-MIRI-1 (10.65um) magnitude (1)
  91- 95  F5.2  mag     MIRI-2  JSWT-MIRI-2 (11.4um) magnitude (1)
  97-101  F5.2  mag     MIRI-3  JSWT-MIRI-3 (15.5um) magnitude (1)

Note (1): Assumed central wavelengths for the MIRI/FQPM narrowband filters
     are 10.65, 11.4, and 15.5um with a simple square passband with
     resolution of 20.


Byte-by-byte Description of file: detec.dat

   Bytes Format Units   Label    Explanations

       1  I1    ---     Inst     [1/8] Instrument (1)
   3- 23  A21   ---     Star     Star name
  25- 31  A7    ---     SpType   MK spectral type
  33- 37  F5.1  pc      Dist     Distance
  39- 41  F3.1  [yr]    logAge   Age
  43- 45  F3.1  mag     Hmag     H magnitude (typically from 2MASS) of the star
  47- 50  F4.2  jovMass Mpl      Average mass of the detected planet in
                                  Jupiter masses
  52- 53  I2    AU      SMA      Semi-major axis of orbit
  55- 56  I2    %       Score    Fraction of runs on which a planet was detected

Note (1): Instrument used flag as follows:
      1 = P1640/GPI
      2 = NIRCam 4.4um
      3 = JWST TFI/NRM 4.4um
      4 = JWST/MIRI 11.4um
      5 = JWSTTFI/NRM 4.4um
      6 = JWST/MIRI 11.4um
      7 = JWST MIRI 11.4um
      8 = TMT 1.65um


History:
    From electronic version of the journal
(End)                                      Patricia Vannier [CDS]    03-Apr-2010