Post on 15-Jan-2016
description
Molecules
in the tmospheresof extrasolar planets
Observatoire de Paris, Salle Cassini, November 19-21, 2008
SPEEDY POSTERS SPEEDY POSTERS
SPEEDY POSTERS SPEEDY POSTERS
GONE IN 60 SECONDS !GONE IN 60 SECONDS !
Ground-based detection of the secondary eclipse of TrES-3bErnst de Mooij & Ignas Snellen, Leiden Observatory
ΔF = -0.234 ± 0.028%Δφ = -0.0041 ± 0.0018
Observations with the William Herschel Telescope
Exoplanet spectroscopy: the Hubble casePieter Deroo
M. Swain, G. Vasisht, A. Tanner, P. Chin, G. Tinetti, J. Bouwman, D. Deming, Y. Yung
Very high dynamic range imaging up to 106 at visible wavelengths
A new idea for aperture masking: FIRST (Fibered Imager foR Single Telescope)
Redundant Array + Corrugated Wavefront
Non-Redundant Array + Spatially Filtered Wavefront
Single-mode fibers
Lenslet array
FIRST project: Planet detection from the ground at visible to near-infrared wavelengths without using Adaptive Optics
T. Kotani
Reconstructed Image
CCD Imaging
Pupil remapping + single-mode fiber
Lab Demonstration
Exoplanet research with Exoplanet research with SAFARISAFARI::
A far- A far-IR IR imaging spectrometer for imaging spectrometer for SPICASPICAJavier R. GoicoecheaJavier R. Goicoechea (UCM/CSIC, Madrid, Spain) Kate IsaakKate Isaak (Cardiff University, U.K.)Bruce SwinyardBruce Swinyard (Rutherford Appleton Laboratory, U.K.)
On behalf of the SAFARI consortium
JAXA-led SPICA Mission:JAXA-led SPICA Mission: mid- and far-mid- and far-IRIR
cooled (<5 K) space telescope (D~3.5m)cooled (<5 K) space telescope (D~3.5m)
SAFARISAFARI instrument: instrument: far-far-IRIR imaging-FTSimaging-FTS
• Wavelength coverage of Wavelength coverage of ~33-210~33-210mm
• Field of view of Field of view of ~~2’ x 2’2’ x 2’
• Spectroscopy Spectroscopy (R(R~~2,000)2,000) & photometry & photometry (R~3)(R~3)
Science questionsScience questions in the field of exoplanetsexoplanets and planet formationplanet formation with SAFARI:SAFARI:
• Stellar far-Stellar far-IRIR photometric excessesphotometric excesses (disks!).(disks!).
• Protoplanetary disks: from gas toProtoplanetary disks: from gas to “snow lines”“snow lines”..
• Primary and secondaryPrimary and secondary transits transits in the far-in the far-IRIR..
• Searching forSearching for spectral signaturesspectral signatures of transiting of transiting exoplanets (water vapor, HD, biomarkers…).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 m, 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: st452@mrao.cam.ac.uk2. University College London, WC1E 6BT, UK, email: lahav@star.ucl.ac.uk
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 ?
1 Laboratoire d’Astrophysique - Observatoire de Grenoble (LAOG), FRANCE2 European Southern Observatory (ESO), Chile
3 Department of Physics and Astronomy, University of Georgia, USA
E-mail : mickael.bonnefoy@obs.ujf-grenoble.fr
M. Bonnefoy1, G. Chauvin1, C. Dumas2, A-M. Lagrange1, H. Beust1, M. Desort1, J-L. Beuzit1 and I. Song3
QuickTime™ et undécompresseur
sont requis pour visionner cette image.
QuickTime™ et undécompresseur
sont requis pour visionner cette image.
QuickTime™ et undécompresseur
sont requis pour visionner cette image.
Paper submitted (Bonnefoy et al. 2008)
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
Physical parameters (Dynamical mass, effective
temperatures, gravities, luminosity, distance, age)
Comparison to evolutionary models predictions
Come to see me !
NIR Spectra Images