Access to Astronomical Catalogues

J/A+A/513/L3    H-band thermal emission of exoplanet WASP-19b  (Anderson+, 2010)
H-band thermal emission from the 0.79-day period planet WASP-19b.
    Anderson D.R., Gillon M., Maxted P.F.L., Barman T.S., Collier Cameron A.,
    Hellier C., Queloz D., Smalley B., Triaud A.H.M.J.
   <Astron. Astrophys.513, L3 (2010)>
   =2010A&A...513L...3A
ADC_Keywords: Binaries, eclipsing ; Planets ; Radial velocities ; Photometry

Keywords: binaries: eclipsing - stars: individual: WASP-19 - planetary systems -
          techniques: photometric

Abstract:
    We present the first ground-based detection of thermal emission from
    an exoplanet in the H-band. Using HAWK-I on the VLT, we observed an
    occultation of WASP-19b by its G8V-type host star. WASP-19b is a
    Jupiter-mass planet with an orbital period of only 19 h, and thus,
    being highly irradiated, is expected to be hot. We measure an H-band
    occultation depth of (0.259+0.046-0.044)%, which corresponds to an
    H-band brightness temperature of TH=2580±125K. A cloud-free
    model of the planet's atmosphere, with no redistribution of energy
    from day-side to night-side, under predicts the planet/star flux
    density ratio by a factor of two. As the stellar parameters, and thus
    the level of planetary irradiation, are well-constrained by
    measurement, it is likely that our model of the planet's atmosphere is
    too simple.

Description:
    The host star WASP-19 was observed by VLT/HAWK-I in H-band on 2009 May
    03. We provide here the resulting differential photometry (raw and
    detrended). See the paper for details.
Objects:
    -----------------------------------------------
       RA   (2000)   DE       Designation(s)
    -----------------------------------------------
    09 53 40.08  -45 39 33.1  WASP-19 = WASP 19
    -----------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
hawkihd.dat       32      276   Detrended HAWK-I H-band photometry
hawkihr.dat       70      276   Raw HAWK-I H-band photometry for the 11 chip
                              positions


See also:
  J/MNRAS/399/287  : Transiting planetary system WASP-4 (Southworth+, 2009)
  J/AJ/137/3826    : Two transits of the giant planet WASP-4b (Winn+, 2009)
  J/MNRAS/396/1023 : Transiting planetary system WASP-5 (Southworth+, 2009)
  J/A+A/501/785    : Discovery and characterization of WASP-6b (Gillon+, 2009)
  J/A+A/502/395    : WASP-11b (West+, 2009)
  J/A+A/502/391    : WASP-13b photometry and radial velocities (Skillen+, 2009)
  J/ApJ/707/167    : Transiting planetary system WASP-18 (Southworth+, 2009)


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

   Bytes Format Units   Label     Explanations

   1- 14  F14.6 d       BJD       Barycentric Julian date
  16- 23  F8.6  ---     Flux      Flux (relative)
  25- 32  F8.6  ---     e_Flux    Uncertainty on Flux


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

   Bytes Format Units   Label     Explanations

   1-  2  I2    ---     Chip      [1/11] Chip position number
   4- 19  F16.8 d       BJD       Barycentric Julian date
  21- 29  F9.7  ---     Flux      Flux (relative)
  31- 43  E13.8 ---     e_Flux    Uncertainty on Flux
  45- 49  F5.6  ---     Airmass   Airmass
  50- 52  A3    ---     ---       [000]
  54- 61  F8.3  ---     bg        Background (electrons)
  63- 67  F5.3  pix     FWHM      Full-width at half maximum of the PSF
  68- 70  A3    ---     ---       [000]


Acknowledgements:
    David R. Anderson, dra(at)astro.keele.ac.uk
(End)                                      Patricia Vannier [CDS]    16-Apr-2010