Transcript Poster Speed Session

SPEEDY POSTERS
Molecules
in the
tmospheres
of extrasolar planets
Observatoire de Paris, Salle Cassini, November 19-21, 2008
SPEEDY POSTERS
GONE IN 60 SECONDS !
Ground-based detection of the secondary eclipse of TrES-3b
Ernst de Mooij & Ignas Snellen, Leiden Observatory
Observations with the William Herschel Telescope
ΔF = -0.234 ± 0.028%
Δφ = -0.0041 ± 0.0018
Exoplanet spectroscopy: the Hubble case
Pieter Deroo
M. Swain, G. Vasisht, A. Tanner, P. Chin, G. Tinetti, J. Bouwman, D. Deming, Y. Yung
FIRST project: Planet detection from the ground at visible to
near-infrared wavelengths without using Adaptive Optics
T. Kotani
A new idea for aperture masking: FIRST (Fibered Imager foR Single
Telescope)
Very high dynamic range imaging up to 106 at visible wavelengths
Lenslet array
Single-mode
fibers
Redundant Array
+ Corrugated Wavefront
Non-Redundant Array
+ Spatially Filtered Wavefront
Lab Demonstration
Pupil remapping +
single-mode fiber
CCD Imaging
Reconstructed
Exoplanet research with SAFARI:
A far-IR imaging spectrometer for SPICA
Javier R. Goicoechea (UCM/CSIC, Madrid, Spain)
Kate Isaak (Cardiff University, U.K.)
Bruce Swinyard (Rutherford Appleton Laboratory, U.K.)
On behalf of the SAFARI consortium
JAXA-led SPICA Mission: mid- and far-IR
cooled (<5 K) space telescope (D~3.5m)
SAFARI instrument: far-IR imaging-FTS
• Wavelength coverage of ~33-210mm
• Field of view of ~2’ x 2’
• Spectroscopy (R~2,000) & photometry (R~3)
Science questions in the field of exoplanets and
planet formation with SAFARI:
• Stellar far-IR photometric excesses (disks!).
• Protoplanetary disks: from gas to “snow lines”.
• Primary and secondary transits in the far-IR.
• Searching for spectral signatures of transiting
exoplanets (water vapor, HD, biomarkers…).
What could be observed in the case of
Super-Ios and Hyper-Ios?
Danielle Briot & Jean Schneider
We study the case of a Earth, or a Super-Earth with a volcanic
activity as strong as Io’s.
We call such an object a Super-Io and a Hyper-Io in the case of a
Super-Earth.
- In case of a transit, sulphur dioxid could be observed in the
atmosphere
- These objects are very good candidates for secondary transits
observations, specially at 3.5 mm, and the hot spots
corresponding to volcanoes could be detected in the first part
and the last part of the secondary transit.
- These objects could be easily observed by imaging in the infrared,
specially in a case of a cool star.
ExoFit
A Bayesian multi-planet fitting software for planet hunters
Sreekumar Thaithara Balan1 & Ofer Lahav2
1. Cavendish Labs, University of Cambridge, CB3 0HE,UK email: [email protected]
2. University College London, WC1E 6BT, UK, email: [email protected]
Best fit Keplerian orbital solution for HD 159868
Posterior distribution of orbital parameters and other
useful astronomical quantities for HD 159868
The young, tight and low mass binary TWA22AB: a new
calibrator for evolutionary models ?
M. Bonnefoy1, G. Chauvin1, C. Dumas2, A-M. Lagrange1, H. Beust1, M. Desort1, J-L. Beuzit1 and I. Song3
1
Laboratoire d’Astrophysique - Observatoire de Grenoble (LAOG), FRANCE
2 European Southern Observatory (ESO), Chile
3 Department of Physics and Astronomy, University of Georgia, USA
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E-mail : [email protected]
Aim: calibrating evolutionary models at young ages and at the substellar boundary.
Observations of the young
low mass binary TWA22 AB
with SINFONI and NACO
NIR Spectra
Physical parameters
(Dynamical mass, effective
temperatures, gravities,
luminosity, distance, age)
Comparison to evolutionary
models predictions
Images
Paper submitted (Bonnefoy et al. 2008)
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