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Table 1:

Flux measurements of PN G135.9+55.9.
Emission line $\lambda_0$ [Å] PMAS $_{{\rm raw}}$ PMAS $_{{\rm corr.}}$ R02 (SPM1) R02 (CFHT) J02a T01 $I({\rm case~B})$  
[O III] 5006.84 3.36 (0.33) 3.48 (0.35) 2.7 (1.3) 2.87 (0.85) 3 (1) 3.1  
[O III] 4958.92 1.27 (0.29) 1.33 (0.30)                
\ensuremath{{\rm H}\beta} 4861.32 100.00 (0.49) 100.00 (0.49) 100.0 (2.1) 100.0 \ensuremath{\phantom{0}} (1.7) 100   100 100.0
He II 4685.65 78.72 (0.62) 82.11 (0.64) 76.1 (2.3) 78.6 \ensuremath{\phantom{0}} (1.5) 77 (3) 92  
He II 4541.59 2.96 (0.39) 3.09 (0.40)                
H$\gamma$ 4340.45 45.49 (0.60) 45.40 (0.63) 41.0 (1.6) 42.05 (0.98) 39 (3) 56 47.6
He II 4199.83 2.48 (0.59) 2.59 (0.61)                
H$\delta$ 4101.74 23.81 (0.64) 23.69 (0.66) 21.4 (2.8) 20.6 \ensuremath{\phantom{0}} (1.2) 17 (2) 30 26.6
H7 3970.07 9.70 (0.73) 10.11 (0.76) 10.0 (2.5) 6.11 (0.64) 4 (1) 11 16.4
H8 3889.06 8.63 (0.89) 9.00 (0.93)     2.92 (0.73)       10.8
[Ne III] 3868.80 <1   <1       1.04 (0.52) 15 (7)    
H9 3835.40 8.22 (0.99) 8.6 \ensuremath{\phantom{0}} (1.0)               7.5
H10 3797.91 3.4 \ensuremath{\phantom{0}} (1.2) 3.3 \ensuremath{\phantom{0}} (1.2)               5.8
F( \ensuremath{{\rm H}\beta})b   1.924 (0.009)     1.82 (0.03) 2.55 (0.03) 1.47 1.19    

Notes. Errors are given in parentheses. The emission line names and the rest wavelength $\lambda_0$, and Case B line ratios for the Balmer lines to  \ensuremath{{\rm H}\beta}, are given in Cols. 1, 2, and 9. We present our raw values in Col. 3 and values corrected for the contribution of He II Pickering lines to the Balmer lines in Col. 4. Columns 5-8 give the values presented by R02 (SPM1), R02 (CFHT), J02, and T01, respectively.
(a) The line ratios are corrected for an extinction value of E(B-V) = 0.03 and for a ${\sim}5\%$ contribution of He II-lines to Balmer lines.
(b) This is the total flux in emission measured for \ensuremath{{\rm H}\beta} in units of 10-14  \ensuremath{{\rm erg}~{\rm cm}^{-2}~{\rm s}^{-1}}, systematic errors are not considered in the error estimate.


Source LaTeX | All tables | In the text

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