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J/PAZh/23/409       Spectrophotometry of Mrk 509           (Chuvaev+, 1997)
Spectrophotometry of the Seyfert 1 Galaxy Mrk 509 from 1972-1993 near H-beta.
       Chuvaev K.K., Doroshenko V.T., Sergeev S.G., Pronik V.I, Mal'kov Yu.F.
      <Pis'ma Astron. Zh. 23, 409 (1997)>
      =1997PAZh...23..409C
      =1997AstL...23..355C
ADC_Keywords: Galaxies, Seyfert; Photometry, narrow-band ; Spectroscopy


Abstract:
    Variability of the continuum, Hβ, Hγ and HeII(4686Å)
    fluxes of the Seyfert I galaxy Mrk 509 is studied using spectra
    obtained on the 2.6-m telescope of the Crimean Astrophysical
    observatory from 1971-1993. All the measurements of fluxes are in the
    relative units normalized to the flux of [OIII](5007Å) taken
    equal to 100. The flux in the line [OIII](5007Å) is estimated in
    the interval of (5.7-7.6)*10-13erg/cm2/s=(5.7-7.6)*10-16W/m2.
    The variability amplitude in the continuum is higher than in the
    hydrogen lines.
Objects:
    ----------------------------------------------------------
       RA   (2000)   DE      Designation(s)
    ----------------------------------------------------------
    20 44 09.7   -10 43 24   Mrk 509
    ----------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        65      154   Emission line and continuum fluxes


Byte-by-byte Description of file: table1.dat

   Bytes Format     Units     Label   Explanations

   1-  8  A8       "DD/MM/YY" Date    Observation date
      11  I1        ---       N       Spectrogram  number
  14- 24  F11.3     d         HJD     [2441596/2449313] Date
  27- 31  F5.1      ---      FHgamma  ? Flux in Hγ+[OIII] in the interval
                                        443.8/456.1nm (1)
  35- 38  F4.1      ---       FHeII   ? Flux in HeII in the interval
                                        477.5/491.1nm (1)
  42- 44  I3        ---       FHbeta  Flux in Hbeta in the interval
                                      495.0/511.3nm (1)
  48- 51  F4.1      ---      F[OIII]  Flux in [OIII](4959Å) in the interval
                                      511.3/515.4nm (1)
  55- 58  F4.2      ---       Fcblue  Flux in continuum_blue in the interval
                                      491.5/494.0nm (1)
  62- 65  F4.2      ---       Fcred   Flux in continuum-red in the interval
                                      527.5/529.5nm (1)

Note (1): The fluxes are normalized to [OIII](5007Å) (F[OIII](5007Å)=100)



Table 2: Main parameters of variability of fluxes in the continuum
         and the emission lines
-------------------------------------------------------------------------------
 Spectral interval  Mean   error st.dev. Fvar     R
      nm            flux    %      %      %
-------------------------------------------------------------------------------
 Continuum:
    C426.5           1.99   7.2   26.4   25.4    3.9
    C443.0           2.04   7.5   24.1   22.9    3.8
    C459.0           2.02   8.5   22.8   21.2    3.4
    C476.0           1.94   7.0   22.6   21.5    3.4
    C510.0           1.71   7.2   23.0   21.8    3.7
    C524.5           1.71   7.1   22.6   21.5    3.9
    C536.5           1.63   8.4   22.8   21.2    3.9
 Lines:
    Hbeta          187.6    6.8   13.9   12.1    2.3
    HeII468.6       25.7   18.9   38.0   33.0    9.2
 Hgamma+[OIII]      78.6   18.4   22.1   12.2    2.5
--------------------------------------------------------------------------------
 Note: In continuum intervals, the flux is given the units of the wavelength
        interval.
 R: Relation of the maximum flux to the minimum flux
(End)                                    Veta Avedisova   [INASAN]   26-Jan-1999