High-resolution HST/ACS images of detached shells around carbon stars

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Table 4:

Quantitative results for R Scl and U Cam from the fits to the observed brightness distributions averaged over all PAs^(a).
Source	Filter	R	$\Delta R$	$F_\ast$	$I_{\rm CSE}$	$F_{\rm CSE}$	$S_{\rm CSE}$	$F_{\rm CSE}/F_\ast$
		[ $^{\prime\prime}$ ]	[ $^{\prime\prime}$ ]	[erg s^-1 cm^-2]	[erg s^-1 cm^-2 Å^-1 $\hbox{$^{\prime\prime}$ }^{-2}$ ]	[erg s^-1 cm^-2]	[erg s^-1 cm^-2 Å^-1]
R Scl	f475	18.8	0.9	4.9 $\times$ 10^-9	$0.5 \times 10^{-17}$	$0.1 \times 10^{-10}$	$0.6 \times 10^{-14}$	$17.0 \times$ 10^-4
	f606	19.3	1.4	$1.3 \times 10^{-7}$	$4.9 \times 10^{-17}$	$1.4 \times 10^{-10}$	$6.0 \times 10^{-14}$	$11.1 \times 10^{-4}$
	f814	19.3	1.4	$1.3 \times 10^{-7}$	$4.4 \times 10^{-17}$	$1.4 \times 10^{-10}$	$5.5 \times 10^{-14}$	$10.3 \times 10^{-4}$
U Cam	f606	7.7	0.5	$1.4 \times 10^{-8}$	$0.6 \times 10^{-17}$	$0.4 \times 10^{-11}$	$0.2 \times 10^{-14}$	$2.6 \times 10^{-4}$
	f814	7.6	0.6	$5.4 \times 10^{-8}$	$3.0 \times 10^{-17}$	$1.4 \times 10^{-11}$	$0.6 \times 10^{-14}$	$2.5 \times 10^{-4}$

Notes. ^(a) The columns give the radius (R) and the FWHM ( $\Delta R$ ) of the Gaussian dust density distribution, the stellar flux ( $F_\ast$ ), the average surface brightness ( $I_{\rm CSE}$ ), the flux of the scattered stellar light ( $F_{\rm CSE}$ ), the flux density of the scattered stellar light ( $S_{\rm CSE}$ ), and the ratio between the circumstellar and stellar fluxes ( $F_{\rm CSE}/F_\ast$ ). See text for details.

Source LaTeX | All tables | In the text

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