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Table 1:

The observed ratios between Ly-$\alpha $ and Ly-$\beta $ photon radiances.
Reference Target Ratio Instrument
Vernazza & Reeves (1978) quiet Sun 102 ATM UV Spectrometer
Vernazza & Reeves (1978) coronal hole 108 ATM UV Spectrometer
Vernazza & Reeves (1978) active region 42 ATM UV Spectrometer
Lemaire et al. (1978) full Sun 79 LPSP/OSO 8
Vial (1982) prominence 77 LPSP/OSO 8
Lemaire et al. (2005) full Sun 155 SUMER/SOHO
Vial et al. (2007) prominence 114-217 SUMER/SOHO
Curdt et al. (2008b) quiet Sun 188 SUMER/SOHO
Current paper quiet Sun 212-230 SUMER/SOHO

Source LaTeX | All tables | In the text

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