Exoplanets CERN - Data acces, Visualisation & Analysis CERN | July 2017 Damien Ségransan, University of Geneva and Geneva planet Search team The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation 55 Cnc DACE aims at federating the European expertise in exoplanets’ research by providing an open access to all type of published (exo)planets data with dedicated visualisation, exchange and analysis tools. (Exo)planets related Data Access - Wide range of published Observational Data such as Radial Velocities and Transit Light Curves - Exoplanets Tables : exoplanets.org & exoplanet.eu - Theoretical data such as planet synthesis populations Visualisation & Statistical Online tools to compare, correlate and combine (Exo)planets data - Javascript visualisation library - Time series, images, correlation plots - Histograms, distribution parameters Direct access to state of the art data analysis tools The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Principe: mesure du décalage Doppler - Jupiter-Soleil : 12 m/s - Saturne-Soleil: 3 m/s - Terre-Soleil : 8 cm/s The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Observatoire de La 1ère planète extrasolaire : Haute-Provence 51 Pegase Tel. de 193 cm The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Comment découvrir une nouvelle planète... The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Quelques années plus tard... The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Fantastique! Mais que se passe-t-il? The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Système multiplanétaire autour de l’étoile de type solaire : HD147018 Période : 44 jours Période : 1000 jours Orbite excentrique Orbite circulaire masse minimum : 2 Mjup masse minimum : 7 Mjup The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation HARPS: précision < 1 m/s - Observatoire de Genève - Physikalisches Institut, Bern - Observatoire Haute-Provence ΔRV =1 m/s - Service d’Aéronomie, Paris - ESO ΔRV =1 m/s Δλ=0.00001 A ΔT =0.01 K 15 nm Δp=0.01 mBar 1/1000 pixel Pression contrôlée Température contrôlée The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation . HD10180 - a 7 planet low mass planetary system 6 Lovis et al., A&A 528, A112, 2011 4 ] s / m [ 2 V RV [m/s] R P = 1.17 .. 2248 days 0 K=0.85 .. 4.5 m/s msin(i)=1.4 .. 65 M 2 213 meas. O-C rms =1.40 m/s 0 50 100 150 200 250 300 350 True Longitude [deg] . 10 5 ] s / m [ 0 C 5 C [m/s] 5 5 O O ] ] 5 ] s s s / / / m m m [ 0 50 100 150 200 250 300 350 [ [ V V 0 V 0 True Longitude [deg] RV [m/s] R R RV [m/s] 0 RV [m/s] R 5 5 5 0 50 100 150 200 250 300 350 0 50 100 150 200 250 300 350 0 50 100 150 200 250 300 350 True Longitude [deg] . True Longitude [deg] . True Longitude [deg] . 8 5 5 ] 8 ] 5 ] s s / s / 6 / m m 6 m [ [ [ 0 0 60 C [m/s] C C C [m/s] C [m/s] C 4 4 O O O O O 4 ] ] 5 ] 5 s s 5 s / / / m m 2 m 0 50 100 150 200 250 300 350 [ [ 2 [ 0 50 100 150 200 250 300 350 2 0 50 100 150 200 250 300 350 V V True Longitude [deg] V True Longitude [deg] True Longitude [deg] RV [m/s] R RV [m/s] R RV [m/s] R 0 0 0 2 2 2 4 4 0 50 100 150 200 250 300 350 0 50 100 150 200 250 300 350 0 50 100 150 200 250 300 350 True Longitude [deg] True Longitude [deg] True Longitude [deg] 5 The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Transit photometry Rs Rp Flux hors du transit Fout 2 δ=(Rp/Rs) =(Fout-Fin)/Fout Flux Flux dans le transit Fin Time HD 209458b Période : 3.524 jours Orbite circulaire Charbonneau et al. 2000 (ApJ 529, L45) demi-grand axe : 0.045Jupiter UA masse minimum : 0.7 Mjup HD 209458b Précision photométrique 0.2–0.4% Petit télescope de 10cm!! The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation ~3h Jupiter ~1.7% HD 209458b 110 ppm/min The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation ρ = 1.3 g cm-3 ρ = 0.4 g cm-3 Jupiter HD 209458b The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation HR8799 Image dans prisent dans l’infrarouge proche - 1-2.5 microns Rapport de flux entre les planète et l’étoile : 10 000 The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation HR8799 - découverte 2008, Marois. Distance : 129 AL Age : 30 million d’années (Soleil 5 Milliard d’années) Masse : 1.5 Msol Luminosité : 4.9 Lsol Température effective : 7300K (Soleil ~5800K) 4 planètes massives Température : 900-1100 K <=> 630 - 830 ° C Présence de Méthane et CO dans l’atmosphère The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation 1.593 microns) and H3 (1.667 Toute nouvelle Découverte Cheetham, Ségransan et al., Décembre 2016 Distance : 136 AL Age : 5 milliard d’années (comme le Soleil) Masse : 1.0 Msol Luminosité : ~1 Lsol Température effective : 5700 K The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Détection avec SPHERE/VLT 1.593 µm 1.667 µm 1 objet massif et très froid! Température : 400-500 K <=> 130 - 230 ° C Présence de Méthane et CO dans l’atmosphère Séparation 0.53’’ => ~23 UA 1.0-1.3 µm Rapport de flux entre le companion et son étoile : 160 000 - 250 000 The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation Les chasseurs de planètes de l’Université de Genève Les académiques (7) : F. Bouchy, D. Ehrenreich, C. Lovis, F. Pepe, D.Queloz, D. Ségransan, S. Udry, M. Mayor (retraite) Les Post-Docs et collaborateurs scientifiques (~10) : S. Saesen, D. Bayliss, N. Blind, M. Marmier, N. Astudillo, V. Bourrier, H. Cegla, A. Cheetham, J-B. Delisle, X. Dumusque, … Les Doctorants (~15) : E. Cersullo, A. Coffinet, U. Conod, A. Deline, H. Giles, B. Lavie, D. Martin, F. Motalebi, E. Obrzud, S. Peretti, M. Raimbault, J. Rey Cerda, E. Rickmann, T. Roger, A. Wyttenbach The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation 358 F. Mignard / Advances in Space Research 47 (2011) 356–364 to compute the location of the images during the CCD the relationship between the G magnitude and the more crossing. usual V magnitude as a function of the colour index While the above estimate of astrometric performances V I. One has with a sufficient accuracy for this purpose includes the CCD charge loss resulting from the energetic (JordiÀ and Carrasco, 2007), particles bombardment during the Gaia lifetime, it does G V 0:0107 0:0879 V I 0:1630 V I 2 not take into account other consequences of this bombard- ¼ À À ð À ÞÀ ð À Þ ment like the PSF distortion and the still poorly modelled 0:0086 V I 3 1 effects observed during CCD readouts at high frequency. þ ð À Þ ð Þ These sources of degradation in the CCD performances, meaning that a red star of visual magnitude 15, looks and susceptible of generating bias in image locations and brighter for Gaia than a hotter star of similar visual mag- are being closely investigated by the prime contractor nitude. The standard deviations in Table 2 are averaged (EADS Astrium), ESA and the Data Processing Consor- out over the sky and the actual accuracy in a particular tium. This issue remains today the main instrumental chal- direction on the sky varies slightly with the ecliptic latitude, lenge for Gaia and a serious source of complication for the by a factor of ±20% about the average for the parallax, data processing. In the performances indicated here, a mar- right ascension and proper motion in right ascension, while gin of 20% has already been applied to allow for unmod- the factor is less than 5% for the corresponding quantities elled effects, but in some range of magnitude or colours, in declination.
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