Abundance analysis for long period variables - Velocity effects studied with O-rich dynamic model atmospheres

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Volume 517 (July 2010)

A&A, 517 (2010) A6

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Table 1:

Characteristics of the dynamic atmospheric models used for the modelling (P = pulsating, PM = pulsating and mass-losing).
Model:	P	PM
luminosity $L_\star$ [ $L_{\odot}$ ]	4000	4000
mass $M_\star$ [ $M_{\odot}$ ]	0.6	0.6
effective temperature $T_\star$ [K]	3500	3500
metallicity [Fe/H] [dex]	-0.7	-0.7
C/O ratio	0.48	0.48
radius $R_\star$ [ $R_{\odot}$ ]	172	172
surface gravity log( $g_\star$ [cm/s²])	-0.25	-0.25
piston period P [d]	200	200
piston velocity amplitude $\Delta u_{\rm p}$ [km s^-1]	2	3
luminosity amplitude parameter $f_{\rm L}$ [1]	4	4
bolometric variation $\Delta m_{\rm bol}$ [mag]	0.86	1.36
dust mass absorption coefficient $\kappa_{\rm d}^{\rm max}$ [cm² g^-1]	-	5
mean mass loss rate $\langle\dot M\rangle$ [ $M_{\odot}$ yr^-1]	-	$1.9\times10^{-7}$
mean outflow velocity $\langle u \rangle$ [km s^-1]	-	19.5

Notes. The notation was adopted from previous papers (Höfner et al. 2003; Nowotny et al. 2010).

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