EMSAO Example 3: Fitting a Synthetic Spectrum

Synthetic Galaxy Spectrum

This spectrum was created in rvsao. linespec Example 1. emsao was run to check the line positions using these parameters.

Intermediate Graphs

Intermediate graphs include the spectrum, the continuum fit (which is really unnecessary), and the spectrum with the continuum removed.

Summary Graph

The results are displayed on summary graph. Using the z command, you can zoom in on the H beta region or the H alpha region. Using the / command, you can toggle between this display and the labelled spectrum without other results.

Summary Log

The following is written to the files specified by logfiles. The (No position) and (No observation date) entries in the log indicate that this a synthetic spectrum with are no observation time and sky position parameters in the header.

rv> emsao emtemp2a
IRAF rvsao.emsao 2.0b mink@xena Mon 16:29:12 19-May-97

emtemp2a Object: Emission Lines Inst 2A  (No position)
(No observation date) BCV:   0.00
Combined vel =    -0.00 +-   15.00 km/sec, z= -0.000 
Emission vel =    -0.00 +-    0.00 km/sec, z= -0.000 for 10/10 lines

Line  Rest lam  Obs. lam    Pixel     z         vel    dvel    eqw    wt
 OII   3727.30   3727.30  2910.20  -0.000     -0.00    0.80  12.53  0.040  
  Hb   4861.33   4861.33  7446.32  -0.000     -0.00    0.62   6.27  0.068  
OIII   4958.91   4958.91  7836.64  0.0000      0.00    0.60  10.03  0.071  
OIII   5006.84   5006.84  8028.36  -0.000     -0.00    0.60  18.80  0.072  
  OI   6300.23   6300.23  13201.9  0.0000      0.00    0.48   6.27  0.115  
  N1   6548.06   6548.06  14193.2  -0.000     -0.00    0.46   6.27  0.124  
  Ha   6562.82   6562.82  14252.3  -0.000     -0.00    0.46  62.67  0.124  
  N2   6583.57   6583.57  14335.3  -0.000     -0.00    0.46  31.33  0.125  
  S1   6717.00   6717.00  14869.0  -0.000     -0.00    0.45   6.27  0.130  
  S2   6731.30   6731.30  14926.2  0.0000      0.00    0.45   6.27  0.131

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