J/A+A/317/503 J/A+A/317/503 Photometric & visibility data of IRC +10 216 M A T Groenewegen Astron. Astrophys. 317 503 1997 1997A&A...317..503G Infrared sources Stars, variable circumstellar matter infrared: stars stars: AGB and post-AGB stars: individual (IRC +10 216) stars: mass-loss A spherically symmetric dust radiative transfer code is used to model the circumstellar dust shell around IRC +10 216. Compared to numerous previous models a much larger body of observational data is used as constraints; the spectral energy distribution between 0.5 and 60000{mu}m, 2-4{mu}m and 8-23{mu}m spectra, optical, far-infrared and centimeter sizes and interferometric visibility curves between 1.6 and 11.2{mu}m are used to constrain the model. The most important result is that in order to fit the visibility curve at 2.2{mu}m and the size of the shell in the optical, scattering has to be invoked.

IRC +10216CW Leo09 47 57.2+13 16 44

Ref Reference number=1 The references are: MR80 = Mitchell & Robinson (1980MNRAS.190..669M) RRH83 = Rowan-Robinson & Harris (1983MNRAS.202..797R) MR87 = Martin & Rogers (1987ApJ...322..374M) LB87 = Le Bertre (1987A&A...176..107L) LB88 = Le Bertre (1988A&A...203...85L) RK88 = Ridgway & Keady (1988ApJ...326..843R) G90 = Griffin (1990MNRAS.247..591G) O90 = Orofino et al. (1990A&A...231..105O) LML93 = Lorenz-Martins & Lefevre (1993A&A...280..567L) D94 = Danchi et al. (1994AJ....107.1469D) W94 = Winters et al. (1994A&A...288..255W) B95 = Bagnulo et al. (1995A&A...301..501B) IE96 = Ivezic & Elitzur (1996MNRAS.279.1011I) --- Teff Effective temperature or lowest value if interval of the central star K n_Teff Note on Teff number=2 A means that the parameter value was assumed - indicates an interval ? for unknown value --- Teff2 Highest effective temperature when interval --- Depth Optical depth --- Radc Inner radius or lowest value if interval of the dust shell in stellar radii --- n_Radc Note on Radc number=2 A means that the parameter value was assumed - indicates an interval ? for unknown value --- Radc2 Highest inner radius when interval --- Tc Dust temperature at the inner dust radius K n_Tc Note on Tc number=2 A means that the parameter value was assumed - indicates an interval ? for unknown value --- Grains Type of grain used --- DensLaw r power number of the density law --- n_DensLaw Note on DensLaw number=3 b: fpr r<=10R* c: Calculated from first principle e: Density distribution calculated taking a constant mass lost rate and a hydrodynamical calculation to determine the velocity law --- L/D2 Luminosity versus square distance solLum/kpc2 n_L/D2 '?' for unknown value --- Const Constraints used number=4 SED = spectral energy distribution LRS = low resolution spectrograph --- Ref Reference --- Lambda Wavelength um n_Lambda '-' when interval --- Lambda2 Highest wavelength when interval um Flux Flux (see unit in X_Flux) --- e_Flux rms uncertainty on Flux --- x_Flux Units of flux and e_Flux --- Beam Beam size arcsec n_Beam for unknown value; x for box beam --- Beam2 Second value when box beam (AxB) arcsec Phase Phase number=1 The phase is calculated adopting a period of 649 days and maximum light (phase=0.0) at JD = 2447483 (Le Bertre, 1992A&AS...94..377L). --- n_Phase ? for unknown value; - when interval --- Phase2 Highest values when interval --- Rem Remarks --- Lambda Wavelength um Ref Reference --- Phase1 Phase number=1 The phase is calculated adopting a period of 649 days and maximum light (phase = 0.0) at JD = 2447483 (Le Bertre, 1992A&AS...94..377L). --- n_Phase1 '-' when interval --- Phase1b Upper value when interval --- Phase2 Second values for the phase --- Phase3 Third values for the phase --- Rem Remarks --- appen.texLaTeX version of Appendix tables.texLaTeX version of the tables fig11.psGeometry of the problem Patricia Bauer CDS 1996Jun07Martin Groenewegen <groen@MPA-Garching.MPG.DE> J_A+A_317_503.xml