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Table 3: Model fits with centered dipole and offset dipole models with comparison to literature values. The columns indicate the SDSS name of the object; the plate, Modified Julian Date and fiber ids of the observations; the dipole magnetic field strength of the centered dipole, the inclination with respect to the line of sight of the centered dipole, the dipole magnetic field strength of the offset dipole, the inclination with respect to the line of sight of the offset dipole, the offset along the axis of the magnetic field in terms of the stellar radius, and finally comments indicate the model parameters from the literature (i.e. Vanlandingham et al. 2005; Schmidt et al. 2003; Gänsicke et al. 2002)

Appendix A: Figures of all fits not shown in the printed version

$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f09.eps}} \end{figure}$	Figure A.1: Color version of Fig. 1.
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f10.eps}} \end{figure}$	Figure A.2: Color version of Fig. 2.
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f11.eps}} \end{figure}$	Figure A.3: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f12.eps}} \end{figure}$	Figure A.4: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f13.eps}} \end{figure}$	Figure A.5: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f14.eps}} \end{figure}$	Figure A.6: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f15.eps}} \end{figure}$	Figure A.7: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f16.eps}} \end{figure}$	Figure A.8: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f17.eps}} \end{figure}$	Figure A.9: FFits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f18.eps}} \end{figure}$	Figure A.10: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f19.eps}} \end{figure}$	Figure A.11: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f20.eps}} \end{figure}$	Figure A.12: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f21.eps}} \end{figure}$	Figure A.13: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f22.eps}} \end{figure}$	Figure A.14: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f23.eps}} \end{figure}$	Figure A.15: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f24.eps}} \end{figure}$	Figure A.16: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f25.eps}} \end{figure}$	Figure A.17: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f26.eps}} \end{figure}$	Figure A.18: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f27.eps}} \end{figure}$	Figure A.19: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f28.eps}} \end{figure}$	Figure A.20: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f29.eps}} \end{figure}$	Figure A.21: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f30.eps}} \end{figure}$	Figure A.22: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{!}{17cm}{\includegraphics[viewport=45 39 595 812]{12570f31.eps}} \end{figure}$	Figure A.23: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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$\begin{figure}\par\resizebox{17cm}{!}{\includegraphics[viewport=45 511 595 812]{12570f32.eps}} \end{figure}$	Figure A.24: Fits of observed spectra of DAHs from the SDSS to centered magnetic dipoles with a polar field strength $B_{\rm p}$ ( left) and dipoles shifted by $z_{\rm off}$ stellar radii along the dipole axis ( right).
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