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MEMORIE DELLA SOCIET ` A ASTRONOMICA ITALIANA

Vol.80 n.3 2009

3D views on cool stellar atmospheres: theory meets observation

Joint Discussion 10, IAU General Assembly, Rio de Janeiro, August 10-11, 2009 editors:K. N. Nagendra, P. Bonifacio and H.-G. Ludwig

TABLE OF CONTENTS

Index 601

Foreword 604

The hydrodynamical approach to stellar atmospheres

M. Carlsson

Hydrodynamics and radiative transfer of 3D model atmospheres 606 D. Dravins

Highest-resolution spectroscopy at the largest telescopes? 614 I. Ram´ırez, C. Allende Prieto, D. L. Lambert, L. Koesterke and M. Asplund

Granulation across the HR diagram 618

C. Allende Prieto, L. Koesterke, I. Ram´ırez, H.-G. Ludwig and M. Asplund

Accounting for convective blue-shifts in the determination of absolute stellar radial

velocities 622

A.M. Seelmann and P.H. Hausschildt

3D radiative transfer with continuum and line scattering in low arbitrary velocity

fields 627

L. S. Anusha and K. N. Nagendra

Projection methods for line radiative transfer in spherical media 631

3D views of the Sun

S. Wedemeyer-B¨ohm and L. Rouppe van der Voort

The solar continuum intensity distribution 635

V. M. J. Henriques and D. Kiselman

Temperature stratification in the Sun’s photosphere in high horizontal resolution

using Ca II H filtergrams 639

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602

E. Caffau, H.-G. Ludwig and M. Steffen

Solar abundances and granulation effects 643

T. S. N. Pinto and J. E. R. Costa

Computation and analysis of gyrosyncrothron emission in solar flares 647 T. M. D. Pereira, M. Asplund and D. Kiselman

Testing 3D solar models against observations 650

P. Zacharias, S. Bingert, H. Peter

Doppler shifts in the transition region and corona 654

3D views of atmospheres of planets and sub-stellar objects

A.J. Burgasser

Cloud formation and dynamics in cool dwarf and hot exoplanetary atmospheres 658 M. Wagner and P. H. Hauschildt

Reflectance spectra of earth-like exoplanets 667

B. Freytag, F. Allard, H.-G. Ludwig, D. Homeier, and M. Steffen

Simulations of dust clouds in the atmospheres of substellar objects 670 R. L. Smart

Brown dwarf parallax programs 674

Polarization

K. N. Nagendra, L. S. Anusha and M. Sampoorna

Polarization : proving ground for methods in radiative transfer 678 J. O. Stenflo

Magnetic structuring at spatially unresolved scales 690

M. Sampoorna

Modeling the second solar spectrum 696

Applications of 3D models to stellar astrophysics

F. Kupka

3D stellar atmospheres for stellar structure models and asteroseismology 701 H.-G. Ludwig, E. Caffau, M. Steffen, B. Freytag, P. Bonifacio and A. Kuˇcinskas

The CIFIST 3D model atmosphere grid 711

K. Ohnaka

Spatially resolving the inhomogeneous structure of the dynamical atmosphere of

Betelgeuse with VLTI/AMBER 715

R. Collet, Å. Nordlund, M. Asplund, W. Hayek and R. Trampedach

Abundance analysis of the halo giant HD 122563 with three-dimensional model

stellar atmospheres 719

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603 A. Kuˇcinskas, H.-G. Ludwig, E. Caffau and M. Steffen

3D hydrodynamical simulations of stellar photospheres with the CO5BOLD code 723 L. Casagrande

The effective temperature scale: resolving different versions 727 M. Steffen, H.-G. Ludwig and E. Caffau

Micro- and macroturbulence derived from 3D hydrodynamical stellar atmospheres 731 N.T. Behara, H.-G.Ludwig, P. Bonifacio, L. Sbordone, J.I. Gonz´alez Hern´andezi and

E. Caffau

3D molecular line formation in dwarf carbon-enhanced metal-poor stars 735 P. Bonifacio, E. Caffau and H.-G. Ludwig

Effects of granulation on neutral copper resonance lines in metal-poor stars 739 M. Weber, T. Carroll, T. Granzer, M. Steffen and K. G. Strassmeier

Monitoring mass motions of Betelgeuse’s photosphere using robotic telescopes 743

Riferimenti

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