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Meeting Siamois Paris 15 mai 2006

Meeting Siamois Paris 15 mai 2006. Data training for the targets Choice to be done (how many stars) V, vsini, Spectral Type, Class Luminosity Estimate of their fundamental parameters Teff, log g, [Fe/H], [O.H],…

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Meeting Siamois Paris 15 mai 2006

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  1. Meeting Siamois Paris 15 mai 2006 Data training for the targets • Choice to be done (how many stars) V, vsini, Spectral Type, Class Luminosity • Estimate of their fundamental parameters Teff, log g, [Fe/H], [O.H],… • Simulation of spectra through the instrument

  2. Meeting Siamois Paris 15 mai 2006 • Formation of a group for the data trainning for selected targets • for simulation • for ground-base observations (Spectra, radius) • Prepare a WEB page with informations choice of the targets doneby the end of the year

  3. Meeting Siamois Paris 15 mai 2006

  4. Meeting Siamois Paris 15 mai 2006 HD nom ST d v sini A (cm/s) V 2151 bHyi G2IV -77.25 5.0 59.7 2.79 11937 cEri G5IV -51.61 1.1 165.7 3.71 114613 G3V -37.80 8.0 73.9 4.85 128620 aCenA G2V -60.83 2.7 34.2 0.00 128621 a CenB K1V -60.84 1.1 18.5 1.33 190248 dPav G7IV -66.18 3.2 11.3 3.56 More than 20 giants available: some to be chosen

  5. Meeting Siamois Paris 15 mai 2006 HD pi 2151 133.78 [.51] 11937 57.19 [.62] 114613 12.63 [1.62] 128620 742.24 [1.40] 128621 742.24 [1.40] 190248 163.74 [.65] Erreur on the radius measurement expected 1% with ATs

  6. Meeting Siamois Paris 15 mai 2006 • Spectra at S/N > 500 with R > 50 000 HARPS, UVES, FERROS, … • VLTI diameters, ATs, phase closure, 1h/star for dwarf  linear radius (Ro) for giants  angular radius (error on pi) give the Teff • Simulation 3D atmospheres (ETL) (alf Cen A&B in preparation)

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