Page 136 - spectroscopic-atlas-5_0-english_Neat
P. 136

Quasar 3C273, Redshift of the Hydrogen Balmer Lines                                                                             Spectroscopic Atlas for Amateur Astronomers

DADOS: Grating 200L mm-1, 50μm slit, recorded may 26, 2012 with Atik 314L+ -10°C, 5x1200s             TABLE 76
The indication of the wavelength, determined with Vspec at Gaussfits, is provided red shifted on the
original scale. The profile is normalised to the continuum Ic = 1, the intensity on the level of the
wavelength axis is Ic = 0.6.

                                                                                                      Hα 7580

                                                      Δλ≈1017Å

   I Hβ 5632

                                             Δλ≈771Å

                      Hγ 5023

               Δλ≈683 Å

         Hδ 4748

        Δλ≈646 Å

1.0

0.6                                                                                                                                                                                                                                                         136

                                                       Red shifted, calibrated original scale

                                                                                                                                                                                                                                   ©Richard Walker 2013/04
   131   132   133   134   135   136   137   138   139   140   141