Online Material

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Figure A.1: Atlas of the OH maser spectra of R Crt for I and V Stokes parameters. The vertical bars give the flux density in Jy and the horizontal axis the velocity relative to the local standard of rest.

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Figure A.1: continued.

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Figure A.1: continued.

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Figure A.1: continued.

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Figure A.2: Atlas of the OH maser spectra of W Hya for I and V Stokes parameters. The vertical bars give the flux density in Jy and the horizontal axis the velocity relative to the local standard of rest.

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Figure A.2: continued.

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Figure A.2: continued.

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Figure A.2: continued.

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Figure A.3: Atlas of the OH maser spectra of RT Vir for I and V Stokes parameters. The vertical bars give the flux density in Jy and the horizontal axis the velocity relative to the local standard of rest.

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Figure A.3: continued.

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Figure A.3: continued.

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Figure A.3: continued.

Up: Monitoring of long term RT Vir